Under certain temperature and humidity conditions, ozone is used to quickly detect the frost spraying of rubber to promote the quality control of rubber products; Through chromatography, frosted substances can be quickly identified, and the efficiency of rubber formula design and the pertinence of formula design improvement can be improved, which is of great significance to product development and technical improvement.
2, reactive hot melt adhesive:
One-component packaging, no combination, 100% content, no solvent pollution; 120~ 150℃ for heating and melting, and 1-2 minutes for condensation and curing, that is, the initial adhesive strength is high, and no fixture or pressure is needed, which simplifies the bonding operation; The adhesive layer has excellent weather resistance, hydrolysis resistance and solvent resistance; The adhesive can be used for a long time in the temperature range of -40℃- 100℃, and the adhesive strength has no obvious change. The adhesive layer has high elasticity, which gives the adhesive excellent impact resistance and impact resistance; This product is universal and can be widely used for bonding synthetic materials such as plastics and rubber with materials such as metal, concrete, glass and wood. It can be used as adhesive, sealant and potting agent. Product performance: solid, light yellow, milky white at room temperature or color matching according to users; The tensile strength of the adhesive layer is > 10 MPa, the elongation is > 100%, and the hardness is adjustable between 50a and 85a. Adhesion strength: with ordinary steel > 8 MPa, with glass > 6 MPa and with concrete > 5 MPa. Application fields: automobile lamp bonding, windshield bonding; Bonding and packaging of electronic and electrical components; Crack sealing in building engineering; Filling and sealing of roads, bridges and expansion joints, and rapid repair of pavement; Repair of cracks in water conservancy and hydropower projects.
3. Synthetic leather series waterborne PU resin:
1, aromatic hydrolysis-resistant (polyether-type) resin: water-based adhesive resin, solid content %:≥30, film hardness (Shore): 20-30, good adhesion, used for bonding bass layer and water-based color paste layer; Water-based general resin: solid content %⊙25, film hardness (Shore): 40 ~ 4, soft film, excellent adhesion and weatherability. Has good embossing formability and cutting resistance. It has good adhesion and solvent resistance, and is used for bonding bass layer and water-based color paste layer.
2. Aliphatic yellowing-resistant resin: water-based adhesive resin, pH: 6 ~ 7.0, solid content %: 30, membrane hardness (Shore): 20-30. Good adhesion and ultraviolet resistance, used for bonding bass layer and water-based color paste layer.
3. Composite resin: waterborne polyurethane and acrylic resin, pH: 5.5 ~ 7.5, solid content %:⊙30, surface charge: negative charge, film hardness (Shore): 35, special hiding power; Good embossing shape retention and shaping; Full coating, water-based color paste layer, used for finishing leather with various effects.
4. Waterborne general resin: solid content %⊙30, film hardness (Shore) 35 ~ 40, moderate hardness, excellent adhesion and excellent solvent resistance; It has good embossing formability and shape retention, and is used for color paste layer.
4. Waterborne surface treatment agent for synthetic leather
1, hand feeling agent: a, dry-slip type: used as topcoat of artificial leather and synthetic leather, giving the coating an excellent dry-slip and delicate feeling. With the increase of dosage, the brightness of the coating is improved, and this product has certain dustproof performance; B, Wax Slippery: The topcoat for synthetic leather can reduce surface wear, give the coating a good slippery feeling and wet wax feeling, and has a certain dust-proof function.
2. Soft filler: it is a kind of soft filler, which is used for the inner layer of various artificial leather and synthetic leather to improve fullness and hiding power.
3, hand wax: it has a certain degree of detachment and moderate softness; Give the coating a waxy feeling, and improve the feel and heavy feeling of the coating; It has good water resistance.
4. Efficient bactericidal and mildewproof agent: it is an efficient, broad-spectrum, novel and environment-friendly compound bactericidal and mildewproof agent. It does not contain any heavy metals and phenols, is convenient to use and environment-friendly, and gradually decomposes into harmless substances after discharge. It is a clean and efficient sterilization and mildew inhibitor.
5. Thickener: High-concentration polymer can be used not only as a high-efficiency thickener, but also as a protective colloid for composite systems such as emulsion, which has super thickening ability, prevents the composite system from settling and promotes the stability of the system. Suitable for all anionic and cationic waterborne finishing systems.
5. Biomechanical technology of footwear movement;
The styles of shoes are ever-changing, but as far as shoe last is concerned, the biggest change is the toe cap. After the first metatarsophalangeal joint and the fifth metatarsophalangeal joint, the last body changed little, especially in the bottom curve. Based on the standard of last, the standardization and assembly of corresponding sole accessories, such as semi-sole, main heel and heel, are studied. Through the research on the support, stability and foot stress of shoes, the best semi-sole curvature, main heel shape, heel opening radian and installation position are found, which are consistent with the back of shoe last. We can design the curvature and shape of the waist and heel, the size, slope and curve of the bottom surface of the shoe last according to the product type and product characteristics of the enterprise and the principle of fit, comfort and health of the shoes, and formulate the rear body standard of the enterprise shoe last.
6. Tester for permeability of finished shoes:
This project mainly tests the air permeability of finished shoes. At present, there is no such instrument at home and abroad, but it can be qualitatively characterized from the aspects of breathability and comfort of finished shoes. This instrument can measure and characterize the air permeability of most leather shoes and sports shoes (all uppers, including high, middle and sole). The instrument needs to be equipped with a gas generator with a certain pressure or a small air compressor.
7, personalized small shoemaking assembly line:
According to the development trend of small batch, diversification and small order in footwear industry, the small assembly line production and equipment studied can meet the variety and production requirements of enterprises, facilitate production management and improve efficiency. This project is suitable for small batch production and all kinds of leather shoes and sports shoes. Ordinary shoe factories can be rebuilt in existing workshops. Conventional shoemaking machinery, special oven, molding equipment. Each assembly line needs 40-60m2 of space, and the others are the same as the conventional shoe-making workshop. Each assembly line can be composed of 20-30 people as required, and can produce 24,000-36,000 pairs of shoes every year.
8. Computer aided shoe material design system;
In shoemaking and clothing industry, the problem of layout is often involved, and the quality of layout scheme will directly affect the production cost of products, and then affect the economic benefits of enterprises. The essence of layout problem is to arrange a series of templates with given shapes on given materials in an optimal combination way, so as to minimize the remaining materials after cutting and improve the utilization rate of raw materials as much as possible. The system uses computer and artificial intelligence technology to develop a computer-aided layout CAD system. Including shoe sample processing, typesetting data management, typesetting optimization, auditing and system maintenance. Operators can fully grasp all relevant information in the whole layout process, such as shoe sample information (shoe name, component name, shoe size, whether rotation is allowed or not, required quantity), raw material information (material name, width, area size, shoe sample spacing, warp and weft direction, texture) and material utilization rate at each stage, which can be read at any time. The advantages are: shortening the discharging period, improving the discharging efficiency and reducing the production cost; Improve product quality and simplify processing technology.
9. A new high-grade shoe material-polyurethane microcellular elastomer;
The new PU shoe material has the characteristics of light weight, wear resistance, folding resistance, cold resistance and comfort, and is recognized as the most ideal shoe-making material in the world at present. The production process adopts the most advanced RIM (Reaction Injection Molding), that is, liquid-solid molding replaces traditional solid-solid molding. The project has been put into production in the shoe factory, and the product quality exceeds the national standard.
10, thermoplastic polyurethane foam sole:
Thermoplastic polyurethane (TPU) foam has the characteristics of light weight, simple processing, recyclability, wear resistance and hydrolysis resistance. It is a new type of high-grade sole material, which can be used to produce sports soles, leather shoes soles and labor protection soles. Technical indicators are as follows: density: 0.6-0.8g/cm3, hardness: 65-80a, wear resistance: 4.8-5.0mm, folding resistance: ≦7 mm (no new cracks).
1 1, soft spinning silent non-slip shoes:
Soft spinning silent non-slip shoes (patent number: 20062005238.6438+0). The utility model relates to a flexible textile anti-slip sole, which is characterized in that one or more layers of elastic polymer materials are sprayed on the sole material, and one or more porous, soft and flexible anti-slip layers are formed on the sole. The shape of the multi-layer mesh flexible anti-slip layer is wavy, honeycomb, spiral or grid. The elastic polymer material is polyurethane, melamine ester or rubber. This kind of non-slip shoes is light and the non-slip layer is firmly bonded. When contacting with rigid ground, it can cushion inertia force and increase friction force, and when contacting with water-based ground, it can absorb liquid and increase the contact force between sole and water-based ground, which has good anti-skid effect. Can be made into slippers for bathing, work shoes for mopping the floor, anti-slip waterproof rubber shoes, anti-slip warm shoes in winter, etc. , the market prospect is considerable.
12, fully suspended healthy casual shoes:
This kind of shoes is supported by brand-new elastic telescopic shock absorber, which reduces the impact force and foot load, feels light when walking, has a good protective effect on human joints, and has a low landing sound and a mute effect. It has five remarkable features: ① The elastic stretching of materials is used to store impact energy for the first time, and the supporting surface and the pressed surface of the sole stretch elastic materials to store impact energy through force transmission. (2) For the first time, full suspension support is adopted according to the principle of automobile shock absorption, and the elasticity of the whole sole is durable. (3) The air cushion and liquid cushion are cancelled for the first time, and the glass and nails are not afraid to puncture. It doesn't need to be installed in the midsole like an air cushion or a liquid cushion, but it is directly installed in the sole, which is light and beautiful. (4) The inelastic soft sponge and other materials are eliminated for the first time, giving people a strong, comfortable and elastic sense of oscillation. ⑤ The contact surface between shoes and the ground is reduced, which greatly reduces the heat transfer area between shoes and the ground, that is, it reduces the uploading of cold air on the ground in winter and plays a good role in heat preservation.
13, recycling technology of waste rubber shoes
Scraps and wastes produced in the process of shoemaking are classified and collected. After being crushed into a certain amount of rubber powder, new regeneration additives are added and mixed in the mixer to realize rubber sulfur regeneration. The regeneration rate is above 80%. Reclaimed rubber has good comprehensive properties and can be directly reused, which can effectively reduce the amount of raw rubber and reduce the cost. This technology has the advantages of low investment, simple process and no secondary pollution, and is an ideal circular economy technology at present.
14, thick slurry release agent:
This product is a viscous slurry release agent developed from waste engine oil, diesel oil, mixed oil extracted from plastic garbage and various vegetable oil residues. Its greatest feature is the superior performance of both oily and soapy release agent, which overcomes the problems that only oil stains are used to produce oil stains on the surface of concrete products, which affects the adhesion of cement mortar or putty powder, and waste engine oil pollutes the surfaces of bricks and products or blackens them, which affects the quality of products. The problems that a single soap agent is easily washed away by rain, the demoulding effect is not ideal, and the steel mold is rusted are solved. At the same time, it has good demoulding effect and low price, and can be widely used in demoulding molds of machine-made red bricks, concrete products, ceramic bodies, rubber products, casting sand cores and the like. Simple production process, less equipment, less investment, easy source of materials, good economic benefits and great market demand are good products for individual, medium and small enterprises.