1, QC contract in order to be confirmed receipt of orders received information is complete, if not complete, should be taken to recover the company clerk, if one o'clock to get any recovery, you need to give a reasonable interpretation sales .
order data elements are as follows:
A, contracts and package information, dated and signed confirmation sample, producing a single operation.
B, trademarks and requirements (including size, pattern, color, etc.)
C, with code, last bottom length and other aspects (such as the shoelace length, shape, thickness of the bottom, etc.)
D, positive side of Mark standard, washed Mark's request.
E, packaging requirements:
Packing: carton thickness, carton printing (positive side of Mark and special requirements), sealing method, in container, outside carton label.
Inner packing: shoe box, shoes support shoes placed inside the shoe box method, wrapping paper, drying requirements, mold requirements; bar code, the price scale, composition standard tag, Zi Mukou, security standards and so on.
F, customer special emphasis on the written notice.
2, assessment of new plant, including the development of capacity assessment,UGG boots clearance, management, production capacity, product quality, with the intention, plant capacity, the price level.
Second, the test preparation
1, Setting the Stage
A. After receiving the inspection data QC, must pay attention to the contract delivery. QC should be 30 days before the delivery period, the production schedule requirements of the factory exhaust cross our company as a test track basis. Meanwhile, QC should also pass the relevant clerk will schedule.
B. QC should be scheduled promptly check whether the progress of factory jobs, if unusual, should be required to re-development of the factory production schedule, and promptly inform the relevant amendments to the progress of the business, while reviewing the progress of the amendments is to ensure product delivery on time. Products such as the production schedule can not guarantee delivery on time, even though the factory should be required to take measures to address and report to the relevant clerk.
2, try the sample confirmed
QC is responsible for the company in charge of private-mode products in the amount of pre-confirmation, as follows:
A. General wear test sample size: weights Men 41 #, women 36 #, 31 # big boy,cheap UGG boots, the child 25 #, 18 # children (or the same size, close to the other regions, the state size)
B. Try checking the length of sample, fertility, the location, whether the toe Camber requirements (ie can not wear shoes, how the tension, whether forward or backwards, etc.).
C. Check the kind of comfort fitting that the top of the foot pressure by the thumb is, if the upper pressure foot, the latter is out with the heel, the bottom insole is consistent with the soles of the feet, walking foot feeling is discomfort.
D. The confirmation process, if found any of the above problems should be immediately asked the factory to stop operations and technology officer and corporate development center to review the verification; only when the issue is resolved before the case informed the factory to continue operations. Confirmation of results should be tried on record keeping.
3, try to do a full set of
full test was done to test all possible mass numbers to help face the existence of technical problems, and assess whether these problems will affect the production quality, a full set of try try hard copy confirmation is divided into validation and knife try to confirm. When the company private mode products that do try hard copy confirmation, confirmed by the QC manager and director of technology development center and factory version of the division-led operations. Male-mode product identification and wrecking hard copy try try confirmed by the QC technician-led operations with the plant director. QC must be involved throughout, and understand and master the key quality control.
A. Try to do a full set of hard copy confirmation
do by the order requires that each pair of numbers, left attached at the end, climb the right foot does not stick well to help the end. Try to do all the same kind of material must be recognized.
(1) test to help determine the issues arising and
question A: toe lasting bit too little: the performance of the shoe is too short to determine the reasons:
(1) hard copy too short.
(2) elongation of fabric or lining is not enough.
(3) reinforcement, or gluing, bonding and other operational reasons, to reduce the original estimate fabric elongation.
(4) inside cardboard too short.
related results:
(1) to help end bit easy to break.
(2) shoes, hose point rise, effect and wear off last.
(3) design of the line shift.
(4) years before the liner and the former is not smooth.
problem B: toe lasting bit too much: the performance of the shoe is too large, determine the reasons:
(1) hard copy too short.
(2) elongation leather miscalculation.
(3) Results to help pull too much.
(4) hard copy errors caused the structure to be helped by strong end to shape.
(5) joints are not allowed.
problem C: shoes, helping a small waist Results: the performance of the shoe is too narrow to determine the reasons:
(1) hard copy between internal and external configuration error or no waist points inside and outside the waist version.
(2) higher than the original design of the shoes I line position.
(3) shoes, hose point (open point) higher than the original design position.
(4) Material error extension rate was estimated (mesh material prone).
(5) composite after the retraction.
problem D: shoes I too loose: that upper paperboard error, because to judge:
(1) hard copy Alice is not enough.
(2) after the middle point of the heel backward.
(3) middle right panel, but after the heel after heel inside cardboard midline backward.
(4) lack of inside material elongation.
(5) the angle error caused after climbing mount version to help difficult.
(6) to help pull back the length of the tension is too big or too small.
(7) the reinforcement of the shoes I is not reinforced.
(8) last place last type of error or distortion.
problems E: last table along the front fold: that of hard copy or make an error, because to judge:
(1) leather plasticity poor (including the film strip, or touch the flowers, nuts).
(2) Shape last too protruding (high convex).
(3) in the material plasticity poor.
(4) prior to lining installation error, and not in the softening or hardening when the device has been lasting for too long.
(5) surface, the former lining, and there is not affixed to each other into one or part of the prison are not posted.
(6) in the bottom end and the last match (too long or too short) or the end of a fixed shift.
(7) to help end machine wiper is not adjusted.
(8) front mount version of the error or improper handling (or edge does not thinning thinning).
(9) Half panel Alice is not enough, outside need to re-sign point to take Alice or correction.
questions F: last section of the table along the palm wrinkles: that hard copy or make an error, because to judge:
(1) hard copy Camber too.
(2) inside cardboard too short or too long.
(3) the lack of elongation in the material.
(4) fabric plasticity poor.
(5) in the bonding before and after the mishandling.
(6) scan the inside lining material or stack.
(7) surface,Discount UGG boots, in part or not fitting fit.
(8) connected to help the error caused.
problem G: last section of the table folds along the heel: that hard copy or make mistakes, because to judge:
(1) pattern after the middle point of the heel forward, or backward under the heel.
(2) hard copy after the middle arc of the heel is too straight (too small).
(3) hard copy back-lasting bit too much or not enough after the heel to take Alice.
(4) inside the cardboard inside straightened error.
(5) after elongation in the material too.
(6) in the heel section and the end of last paragraph does not match the end of the heel (too big or too small).
(7) fabric plasticity poor.
problem H: the center line after the heel does not ride: that hard copy or make an error, because to judge:
(1) hard copy too much after the heel midline curvature.
(2) hard copy center line arc and the last after the heel does not match the curvature of the heel.
(3) in the low fixed bad.
(4) containing a cardboard backing or after the point of error.
(5) hard-liner device error.
(6) Results after the heel height is not the time to help locate or lasting skew.
(7) fabric plasticity poor.
(8) sewing error, not subsidies or reinforced with strong bad fit.
problem I: tight shoes I: showed off last is not easy, off last will have the following effects:
(1) off the last wall of the heel when the shoe section of wrinkling, and destruction of hard-liner performance.
(2) shoes I crack vulnerable position.
(3) is not easy to keep shoes (stereotypes), toe Alice increased.
(4) depression in the waist.
(5) wearing inconvenience.
(6) pay particular attention to the shoes of a pedal.
Cause Analysis:
(1) hard copy Camber too.
(2) shoes I too small.
(3) Results to help pull too much.
(4) after the heel vertex set too high.
(5) after the heel shoe great on the small, out of proportion.
2) arising from the sole part of the problem and determine
(1) the public at the end die: If the sole use of the common mold, testing should be done in hard copy check sole length, width, and the last is the first match, the availability of advance and retreat No problem there, should increase the mold, the problem at this stage should be a clear conclusion.
(2) Private bottom die: If created, such as sole use of specialized tooling, testing should be done in hard copy check whether the requirements of quality shoes, such as sole length, thickness, mold line of the overflow , flash compliance requirements, there is every color processing is a string of large color and so on. QC supervisor should try to do in the knife factory and shoe factory before the coordination required to address these issues and ensure the quality of a full range of shoes to meet the requirements.
QC requirements of the factory managers should deal with these issues in a timely manner, not to hard copy issue to try to do stage knife.
B. Knife try to do a full set of confirmation (confirmation test requirements and methods to do try to do with the hard copy)
try to do a full set of knife try to check the hard copy of the issue is resolved, confirm the relationship between knife to try to do quality control of all technical problems in the production process can be effectively addressed.
(1), such as management technicians try to do the problems of reasonable solutions, that these problems can be overcome in the production, the QC in charge agreed to the implementation of production.
(2) try to do the problems, such as in mass production has uncertainties, which may occur or may not control the bias, although the factory technicians proposed solutions, but have not yet seen the results of this method can not ensure that this problem in a production process can be effectively resolved and control, QC requirements of the factory managers should do a second trial.
(3) knife try precautions:
A. Trademarks, silk screen design, high-frequency specifications, the size of sub-compliance.
B. Uppers of rubber band, zip cord from the mouth of the role of shoes, whether the eye in the middle of the shoes put a car reinforced with the flexibility to protect the elastic deformation of the zipper effect and to avoid its original function.
a full set of test results do confirm the record,
3. Raw and auxiliary materials confirm that:
1) upper material confirmed: according to production schedules, confirmation samples, QC orders should be required to provide the necessary plant material samples (in accordance with the specifications), and paste the sample material is recognized in the material table. Recognized including material, color, thickness, sample size is consistent with the recognition. Meanwhile, QC sample material should be required for routine plant project (or according to customer requirements) and physical testing. The material can be tested only as a basis for plant purchases. After the raw materials into the plant, QC materials should be confirmed by passing the sample on the table for examination on the material to ensure production of the material is correct.
2) Sole material confirmed: according to production schedules,Bailey UGG boots, confirmation samples, QC on the soles to the amount of pre-confirmation. Recognized including material, color, appearance is consistent with the confirmation samples. Meanwhile, QC samples should be requested at the end of the routine factory project (or by request) physical testing, only pass the rear of energy production. After the shoe into the plant, QC should be checked to ensure that the right shoe production.
3) packaging materials confirmed: according to the order, packaging materials, QC Packaging factory data provided by check and confirm, to ensure the quality of packaging materials and related information consistent with the requirements of the order.
confirm the results should be recorded in the
start with the overall package of shoes, are generally divided into, the box (INNER BOX) + outside the box (CARTON) packaging bags commonly known as Box ; (POLY BAG) + outer box packaging, commonly known as bulk.
dress shoes to calculate the number of cabinets to be separated into two persons.
the box:
First you have to put a pair of concrete shoes and a reference shoe box, put into a little better after the generally relaxed, and then look at your customer's requirements, for example, shoes, shoes with your customers requirements of their appearance on the shoes are high, then it must be appropriate to put some size, such as flat shoe, shoe upside down, or put the heel then toe, how to save space and do not put As for shoes pressing on OK. For the box length, width and height of the problem, you have to look at the size of your shoes into it, such as your SAMPLE is 42 yards, while the customer is from 40-45 yards with it the box is 42 yards long shoes long + (45-42) × 5mm, width and height of the normal for the size of the increase in general not very obvious, a little wide and a 1mm can be.
there is a more savings inside the box, such as the request of the guests are from the 39-45, 39-41 in which we can choose an interior box set the length of the election within another box set 42-45 length. The reason is simple span for this relatively large size of the order, if a menu within a box, bound to make 39 shoes put too loose, thus wasting space.
box so for the length, width and height have been made clear later, we can calculate the outer carton. outside the box within a box under the laws of different release rules are not the same box. within the boxes for packaging in general 12 are loaded, 18 equipment, 24 containers, except Koreans, like the 30 installed (the most unscientific.)
example, such as a 12 pairs of shoes inside the box, the box size is 31 × 18 × 12. have a good variety of combinations, but the various combinations of the ultimate goal is to make the length and width of the container high just outside the box for integer. This is where the container size. Generally, we three common 20 ', 40', 40'HQ.
⑴ 20 'cabinet: Length 5.8m, width 2.3m, 2.35m high
⑵ 40 'cabinet: Length 11.8m, width 2.3m, 2.35m high
⑶ 40'HQ cabinet: Length 11.8m, width 2.3m, 2.65m high
data is mainly used in 2.3m, 2.35m
now lists 20 ', 40, 40'HQ cabinet width of energy put integer Meas.
for 2.3m: 38.3 (6 pieces) ; 46 (5) ; 57.5 (4) ; 76.6 (3).
to 2.35m: 39.1 (6 pieces) ; 47 (5) ; 58.75 (4) ; 78.3 (3).
to 2.65m: 33.1 (8 only) ; 37.8 (7) ; 44.1 (6) ; 53 (5) ; 66.25 (4)
length is not listed, as long as the height and width to meet, to the filled container quickly to roughly estimate the time a little
what you can.
on the next to follow examples given in different combinations of box sizes + added to determine the size of outer carton. Principle is not to have extra space. Example, the box size of 31 × 18 × 12,12 equipment, if taken within the box heel stick to bottom of the long side, pull 2 rows to 3 rows of high tension as a unit, so that the bottom for six, then the same add a layer of the way. In this way outside the box size combinations:
Length: 31 × 2 +1 (1 for the outer carton in thickness), width: 12 × 3 +1, High: 18 × 2 +2 (2 floors up and down, so the +2).
This Carton size 63 × 37 × 38. and then control the table above.
here to 40HQ example, 37mm can be put in the high 7, more than 5.6cm, 38mm wide and put in the 6 months, more than 1.8cm, 7 只 generally outside the box is not very much more than 5.6cm, because in the calculation of the actual packing, as in not as accurate and acceptable. The width of the area was a bit tight, then you can adjust the size of the box to change the size of carton to make outside the box just meet your requirements, in this example, you can adjust the 38, that is, to adjust the height of the box, such as that within the box to adjust to the 17.8 or 17.9 high, in fact, simpler adjustments directly within the box without having to adjust the box, the problem is not great. because of the error of 1-2mm or installed into the. Note the box used above all for the box size diameter)
combination if you just can not reach an integer outside the box, you will need to adjust the mix, there is not much to say. Set the height and width are much easier after a long very simple: 1180 ÷ 63 = 18.7 only, that put a row after 18 there is 63 × 0.7 = 44.1mm spare, and this is to use 37 or 38 meet the extra length. discharged after a little bit of a row of free space, it is necessary.
Finally we calculate the case of shoes in a 40HQ locker can hold the number of 6 × 7 × 18 +7 × 4) × 12 = 9408PRS. this is in fact an accurate number.
one sole material:
very complex structure of the sole, in broad terms, may include the outsole, midsole and heel so the bottom of all the constituent materials. By the narrow sense, is confined to the outsole, the general characteristics of sole material should have the common wear, water, oil, heat, pressure, impact resistance, flexibility, and easy to fit foot, stereotypes not easily changed, insulation, easy to absorb moisture, etc., but also to tie in the end, when walking the foot brake for the role of Bu Zhiyu slip and easy to stop, and other conditions. Many different types of shoe materials, can be divided into natural and synthetic materials class at the end the end of the two materials. Natural class of materials including natural bottom end of leather, bamboo, wood, synthetic base materials, including rubber, plastics, rubber and combination of materials, recycled leather, flexible cardboard and so on.
(a) natural leather bottom
natural substrate is the production of leather shoes, with outer soles of boots, a special leather insole.
under different raw materials they use can be divided into cattle Leather Sole Leather, buffalo Leather Sole, the bottom pigskin leather, etc.; according to different purposes can be divided into outer soles of leather, the degree of reform, the main with leather, leather, etc. within the header; according to their different methods of tanning, can be divided into chrome-tanned leather, vegetable tanned leather, combined with tanning, etc.; its different levels and positions, can be divided into cowhide leather heart, Tau leather, cow leather side, cattle shoulder leather and so on.
natural characteristics of leather end: the end of the natural leather tanning methods, the performance has not the same, each with its own characteristics.
① end of vegetable tanned leather features are: body thick leather, hard bottom big title nail force, and, less water absorption, strong plasticity. However, resistance to vegetable tanned leather pad the end of poor performance.
② chrome tanned leather bottom characteristics: good wear resistance, water absorption of large, high strength, good heat resistance.
③ combination tanning at the end of the following characteristics: the surface of the end of the performance and vegetable tanned leather is basically the same, but in the heat-resistant strength, wear performance has improved.
(b) of the synthetic base material
1, rubber base material
respectively gum natural rubber and synthetic rubber for the two categories. Natural rubber: rubber tree cut by the mouth of the outflow of mortar collected through to the impurities, freezing, smoking, drying, processing, and the formation of the raw rubber material. Natural rubber from rubber trees in tropical and subtropical.
synthetic rubber: A byproduct of the petrochemical industry, according to different needs, different physical properties of synthetic raw rubber material. Commonly used, such as: SBR, NBR, EPDM, BR, IIR, CR, Q, FKM and so on. But the difference synthesis methods, the same compound could be divided into several different raw rubber, also set by formula, any type of plastic material, can change into a thousand kinds of products meet the needs of the raw rubber material.
in the use of rubber footwear in the base material has a wear resistance, high elasticity, waterproof, acid and so on.
A: the composition Category: natural rubber, synthetic rubber.
1), natural rubber: natural rubber, the advantage is that it is very soft, flexible and good, can be properly and in a variety of sports, but also the obvious disadvantage that is very wearable. Multi-purpose indoor sports shoes, natural rubber.
2), synthetic rubber: is divided into wear-resistant rubber, green rubber, air rubber, sticky rubber, hard rubber, with carbon rubber.
① wear rubber: rubber wear resistance and toughness are very good, so very durable rubber material that usually end in a large tennis shoes to use.
② green rubber: recycled materials, also known as rubber, which rubber outsole contains up to 10% of the waste rubber, the main purpose is to protect the environment.
③ Air Rubber: Rubber contains air, a certain degree of cushioning, but not very wearable, use is not very extensive.
④ rubber adhesive: sticky rubber is characterized by flexibility is good, and very non-slip, usually used in indoor sports shoes.
⑤ hard rubber: of hard rubber is rubber outsole rubber in the most comprehensive, tough and very wear-resistant non-slip, uses naturally very wide.
⑥ with carbon rubber: rubber materials in general have added the carbon to make more of the tough wear-resistant rubber.
B: by product is divided into: rubber sheet material, bar material, rubber compounds, forming the end so on.
① rubber sheet material. Rubber film material is processed into some thick crust of the rubber material. Women's heels as pressure, volume heel outsole used, in the end with the dough and so on.
② strip material. Strip material is already processed into a certain size and shape of the rubber material. If outside the strip, along the seam strips shoe.
③ rubber sole material. Rubber at the end of the raw rubber material is a state, an unstable compound, used in the production of molding and other outsole technology, combined with the end help to achieve the standards.
④ forming the bottom. Degree of mixing in the rubber molding, and then pressed through the mold and vulcanizing the rubber substrate. If the end of the whole palm shape, with the end with the molding and rubber forefoot.
2, and with the class and thermoplastic rubber elastomer can
rubber and thermoplastic elastomer with the class and it is through the physical blending of rubber and plastics, or chemical methods to manufacture a new material made to overcome some of the two materials, inadequate, is the ideal shoes with synthetic materials, it has a lightweight waterproof, corrosion resistance, wear resistance and other characteristics, widely used in shoe-making process, such as leather bottom, EVA rubber sole and so on.
Rubber (Rubber and plastic), rubber and plastics industry, collectively, they are all a subsidiary of petroleum products. They are the same in origin, but made the product in the process, not the same physical properties, uses is different. Rubber is widely used in tires, plastics as technology and market demand and use is increasingly widespread in everyday life has been inseparable from the inside.
short, plastic and rubber the most essential difference is that the plastic deformation of the plastic deformation occurs, the rubber is elastic deformation. In other words, plastic deformation is not easy to restore the original state, while the rubber, relatively speaking, much easier. Flexible plastic is very small, usually less than 100%, while the rubber up to 1000% or more. Plastic molding process in forming the vast majority of finished product will end the process; and after the molding process of rubber vulcanization process have needed.
belong to the same plastic and rubber polymers, mainly carbon and hydrogen atoms, while some contain small amounts of oxygen, nitrogen, chlorine, silicon, fluorine, sulfur atom, the performance of special purpose also special. At room temperature, the plastic is solid, very hard, not tensile deformation. The rubber hardness is not high, flexible, can be stretched longer, stop stretching can be reinstated. This is because they are caused by different molecular structure. Another difference is the repeated use of plastic can be recycled many times, but can not be directly recycled rubber, recycled rubber can only be made into, and then be available. Plastics in more than 100 degrees to 200 degrees and rubber in the form of 60 to 100 degrees similar to the form.
Broadly speaking, rubber (synthetic rubber) is a kind of plastic, plastic, including rubber (synthetic rubber).
TPE (Thermoplastic Elastomers), referred to as TPE, rubber and resin, is between a new type of polymer material between, while a traditional function of heat back to the type and nature of the rubber (soft, flexible, touch good), and the processing of general thermoplastic simple, fast, and then use the dual advantages of recycling. TPE is its function and nature of the thermoplastic rubber, therefore, it was also called thermoplastic rubber (Thermoplastic Rubbers), referred to as TPR. With environmental non-toxic safe, wide range of hardness, color of the fine, soft touch, and so on; weather resistance, fatigue resistance and temperature resistance, processing and superior performance, not curing, can be recycled to reduce costs, both secondary injection molding, and PP, PE, PC, PS, ABS and other adhesive coated substrate material can also be formed separately.
TPE thermoplastic elastomer (TPE) can be summarized as two general types of TPE TPE and engineering, the world has industrialized production of TPE are: styrene (SBS, SIS, SEBS, SEPS), olefin ( TPO, TPV), diene (TPB, TPI), vinyl chloride type (TPVC, TCPE), urethane type (TPU), esters (TPEE), amide (TPAE), organic fluorine (TPF), organic such as silicone and vinyl, synthetic rubber is now covering almost all areas with synthetic resin.
styrene TPE also known as the TPS, as butadiene or isoprene and styrene block copolymer type, the performance closest to the SBR rubber. Accounting for about half of all TPE. Representative of the varieties of styrene - butadiene - styrene block copolymer (SBS), widely used in the footwear industry, has largely replaced the rubber; while in tape, sheet and other industrial rubber products in use is also widening. SBS is also a large number of PS plastic used as impact modifier, but also wear-resistant asphalt paving of the asphalt pavement, cracking, excellent anti-skid soft modifier.
the advantages of thermoplastic elastomer:
(1) generally available thermoplastic molding machine processing, such as injection molding, extrusion molding, blow molding, compression molding, hand molding, etc.; can vulcanized rubber injection molding machine, the time to be reduced from 20min or so, reduced to less than 1min; available vulcanized extruder, extrusion speed, curing time is short.
(2) the waste generated in the production process (escape flash, out of waste plastic), and culminating in the waste, can return to re-use; used TPE can be simply recycled old materials again after use, reduce environmental pollution, expanding sources of renewable resources;
(3) without curing, to save energy; self-reinforcing nature of large, simplified formula, so that the ingredients on the Construction of the polymer greatly reduced, the quality of performance easier to master.
plastic elastomer Disadvantages:
TPE heat-resistant than rubber, as the temperature rises and a larger decrease in physical properties, and thus the scope is limited. Meanwhile, the compressive deformation, bounce, durability, less than the same rubber, the price is often higher than the same kind of rubber. Overall, however, TPE advantage is still very prominent, but the disadvantage is constantly being improved, as a new energy-saving environmental protection, rubber raw materials, the development is very promising.
3, plastic
synthetic or natural polymer compounds as the basic ingredient, is made in the plastic processing type; with oil, corrosion resistance, insulation, low cost and so on. Used for the outsole, the main with, the bottom half and the materials used within the header.
a single component, multiple components of the points, with only a single component plastic resin plastic in the essential, and most plastics are synthetic resins in addition, there are fillers, hardeners, colorants and other additives, which is multi-component plastics.
almost all of plastic used in synthetic resin. Resin is the most important ingredient in plastics, adhesives play a role, can the other components of plastic cement into a whole. Although entry into the various types of additives can change the nature of plastic, but plastic resin is to determine the type, performance and use of the fundamental factors. Common resin types are:
polyethylene (PE), polyvinyl chloride (PVC), polystyrene (PS), phenol formaldehyde (PF), urea formaldehyde (UF), epoxy (EP), polyester (PR), polyurethane ( PU), polymethylmethacrylate (PUMA), silicone (SI) and so on. In accordance with the changes that occur when heat is different from synthetic resin can be divided into two kinds of thermoplastic resins and thermosetting resins.
thermoplastic resin: a softening with heating, cooling, hardening of the performance, but can not afford to chemical reactions, both heating and cooling is repeated many times, can maintain this performance. Thermoplastic resin: PE, PVC, polystyrene, polyamide, POM, polycarbonate, polyphenylene oxide, polysulfone, rubber and so on. The advantages of thermoplastic resin molding process is simple, has high mechanical energy. The disadvantage is poor heat resistance and rigidity.
thermosetting resin: resin heated chemical changes, gradually hardening shape, then heat is not softened, it can not dissolve. Thermosetting resin has the advantage of high heat resistance, compression deformation. The disadvantage is poor mechanical properties. Thermosetting phenolic resin, epoxy, amino, ether, unsaturated polyester resins and silicon.
advantages of plastics: processing characteristics, and processing technology is simple; light: similar to wood; than strength: is a lightweight high strength materials; thermal conductivity: is the ideal insulation material; chemical stability good: on the general acid, alkali, salt and fat have better corrosion resistance; electrical insulation and good: generally a poor conductor of electricity; performance design is good: by changing the formulation, processing technology, has made various special properties of engineering materials; rich decorative: the products can be made transparent, but also products made of various colors, and beautiful color, durability, but also with advanced printing, embossing, electroplating, and hot stamping technology made with a variety of patterns, pattern and surface three-dimensional, a metallic products.
plastic Cons: easy to aging --- Articles in the sun, air, heat and environmental media such as acids, alkali and salt under the action of the molecular structure of graded, plasticizers and other volatile components, combined key causes of fracture, leading to deterioration of mechanical properties, or even hard and brittle, damaged and so on. Flammable - not only flammable, but heavy smoke when burned, and even toxic gases. Heat is bad: generally have heat distortion, and even decomposition. Stiffness of the small: a viscoelastic material, the elastic modulus is low.
4, flexible cardboard class
flexible paperboard category is cotton pulp or sulphate pulp by beating, papermaking, desalination, laminating adhesive, aging, drying and finishing processes are made. Flexible board characteristics like strong, hard texture, smooth, good elasticity, good shape. In general, the thickness of 1 to 3 mm, except for injection molding, molded shoe insole, but also that the women's half soles and heels of shoes molded hook heart.
5, regenerated leather
recycled shoe leather is the material of the remaining material mixed with other fibers, and then through the crushing, sizing and tabletting processes produced. Characterized by processing performance, high temperature. Used for the bottom and in the end of the fabric.
6, rubber outsole play
The outsole is not common, this is the end of the raw materials of industrial glue, stirring through the mixer, and then the heating tank into the mold forming, which is characterized by soft and very slippery.
Second, classification and characteristics of shoe soles
1, leather shoes:
leather soles is an automated breathing and he can bring the soles of feet breathe, good ventilation, not stuffy feet, can automatically release the absorbed sweat to keep feet dry. Leather soles with leather-based, and higher prices. The advantage of easy stereotypes, the same type, fit, flexible, and can not easily reduce the impact of fatigue, ventilation, moisture absorption, etc., while easy to process, patterns show up in a beauty. Hard texture, not easily be punctured, but by water, oil soaked easily warp or rot. Its main features:
① has good thermal insulation to ensure that the right foot in the shoe temperature
② weight, weight per square centimeter of 0.95 to 1.05 grams, exactly the same as the density of water. Can no longer waterproof and moisture in the shoe when the release of moisture to ensure the shoes in a comfortable state.
③ unique three-dimensional fiber structure, the sole at 180 degrees will not break when bent. Can adapt quickly to the foot shape, can effectively support the ground impact, than the same thickness of other materials to more effectively protect the foot soles.
④ 2, rubber base (RB):
RB is English rubber (rubber) abbreviation; hot plastic molding, sub-natural rubber and recycled rubber. Heavy, not oil, must be molded bottom surface roughening in the fitting, easy to shorten the time by heating, color inconsistencies.
advantages: good wear resistance, anti-slip, flexible, easy to break, good flexibility, good extension, contraction and stability, good hardness, good bending, waterproof. EVA bottom is light, flexible, but flexibility in reducing wear long, become practical point.
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