Fiber leather manufacturing method

Abstract

The invention relates to a fiber leather manufacturing method, which comprises the following steps: uniformly discharging a fiber raw material in a flowering machine, adding high-ammonia concentrated natural latex on the discharged material, drying, and flattening to form a leather semi-finished product; coating urea formaldehyde glue on the surface of the leather semi-finished product, and drying again to form a fiber leather finished product. According to the technical scheme, the fiber leather imitating animal leather can be manufactured by utilizing the fiber raw material, the raw material cost is relatively low, the manufacturing cost is relatively low, the manufactured fiber leather is fireproof, waterproof, antimagnetic and light, can be used as a shoemaking raw material and can be painted on the surface, and the method is integrally convenient to manufacture and can replace animal leather in some use scenes.

Description

Technical Field

[0001] The present invention relates to, and particularly relates to a method for making fiber leather. Background Art

[0002] At present, the raw materials for leather making are all animal skins, and they are made through multiple complex technological procedures, with relatively high costs and relatively high selling prices. For some products that want to use leather materials, but considering the low value of the products themselves, it is not necessary to use animal leather. Summary of the Invention

[0003] In view of the technical problems in the background art, the technical problem to be solved by the present invention is to provide a method for making fiber leather with relatively low costs, having an imitation animal leather effect, and being relatively convenient to make.

[0004] To solve the above technical problems, the present invention adopts the following technical solutions: a method for making fiber leather, after uniformly discharging fiber raw materials in a blooming machine, adding high ammonia concentrated natural latex to the discharge, and then drying and pressing to form a leather semi-finished product; applying urea-formaldehyde glue on the surface of the leather semi-finished product and drying again to form a fiber leather finished product.

[0005] The following optimizations or supplementary descriptions can be further carried out on the above technical solutions respectively.

[0006] For example, the fiber raw materials are plant fiber raw materials.

[0007] Among them, the composition of the urea-formaldehyde glue is adding urea, formaldehyde, sodium hydroxide, formic acid and polyvinyl alcohol into water.

[0008] For example, in the urea-formaldehyde glue, by weight ratio, add 6% ± 1% of urea, 3% ± 0.5% of formaldehyde, 3% ± 0.5% of sodium hydroxide, 15% ± 2% of formic acid and 1% ± 0.5% of polyvinyl alcohol into one kilogram of water.

[0009] As an optimization, in the urea-formaldehyde glue, by weight ratio, add 6% of urea, 3% of formaldehyde, 3% of sodium hydroxide, 15% of formic acid and 1% of polyvinyl alcohol into one kilogram of water.

[0010] The beneficial effects of the present invention are that in this method, fiber leather imitating animal leather can be made using fiber raw materials, with relatively low raw material costs and relatively low production costs, and the made fiber leather has fire prevention, water prevention, magnetic prevention, light weight, can be used as raw materials for shoe making, the surface can be painted, and the overall method is convenient to make and can replace animal leather in some usage scenarios. Embodiment

[0011] In the example of the production method of fiber leather in this embodiment, after the fiber raw material is evenly discharged from the fluffer (i.e., the embryo is output), high ammonia concentrated natural latex is added to the discharged material, and then it is dried (i.e., the second drying) and flattened to form a semi-finished leather. Drying reduces the moisture content of the material to facilitate flattening and shaping; the surface of the semi-finished leather is coated with urea-formaldehyde glue and dried again (i.e., the second drying) to dry the glue on the surface, thereby forming a finished fiber leather. The surface will have a smooth leather texture and also has fireproof and waterproof functions. The firmness and hardness can also meet the requirements. During the drying process, an oven (including drying lamps or hot air, etc.) can be used, and the temperature, time, and water content are set according to requirements. Usually, during the first drying, the moisture content of the material is reduced to facilitate flattening and shaping of the embryo with high ammonia concentrated natural latex; during the second drying, the glue is solidified. Of course, high ammonia concentrated natural latex can also be directly added to the fiber raw material in the fluffer and mixed and evenly discharged together to replace "adding high ammonia concentrated natural latex to the discharged material".

[0012] In this method, fiber leather imitating animal leather can be made from fiber raw materials. The raw material cost is relatively low, the production cost is relatively low, and the produced fiber leather has fireproof, waterproof, anti-magnetic, and lightweight properties. It can be used as a raw material for making shoes and can be painted on the surface. The overall production method is convenient and can replace animal leather in some usage scenarios.

[0013] Based on the above embodiments, the following optimizations or further explanations can be made.

[0014] For example, the fiber raw material uses plant fiber raw materials such as cotton and hemp, which are convenient to obtain and have low costs.

[0015] Among them, the composition of the urea-formaldehyde glue is adding urea, formaldehyde, sodium hydroxide, formic acid, and polyvinyl alcohol into water.

[0016] For example, in the urea-formaldehyde glue, by weight ratio, 6% ± 1% of urea, 3% ± 0.5% of formaldehyde, 3% ± 0.5% of sodium hydroxide, 15% ± 2% of formic acid, and 1% ± 0.5% of polyvinyl alcohol are added to one kilogram of water.

[0017] As an optimization, in the urea-formaldehyde glue, by weight ratio, 6% of urea, 3% of formaldehyde, 3% of sodium hydroxide, 15% of formic acid, and 1% of polyvinyl alcohol are added to one kilogram of water.

Claims

1. Method for making fiber leather. After uniformly discharging the fiber raw materials in a flocking machine, high-ammonia concentrated natural latex is added to the discharged materials, and then dried and flattened to form a semi-finished leather product; the surface of the semi-finished leather product is coated with urea-formaldehyde glue and dried again to form a finished fiber leather product.

2. The method for manufacturing fiber leather according to claim 1, wherein: The fiber raw materials are plant fiber raw materials.

3. The method for manufacturing fiber leather according to claim 1, wherein: Among them, The composition of the urea-formaldehyde glue is adding urea, formaldehyde, sodium hydroxide, formic acid and polyvinyl alcohol into water.

4. The method for manufacturing fiber leather according to claim 3, wherein: In the urea-formaldehyde glue, by weight ratio, 6% ± 1% of urea, 3% ± 0.5% of formaldehyde, 3% ± 0.5% of sodium hydroxide, 15% ± 2% of formic acid and 1% ± 0.5% of polyvinyl alcohol are added to one kilogram of water.

5. The method for manufacturing fiber leather according to claim 3, characterized in that: In the urea-formaldehyde glue, by weight ratio, 6% of urea, 3% of formaldehyde, 3% of sodium hydroxide, 15% of formic acid and 1% of polyvinyl alcohol are added to one kilogram of water.

6. The method for manufacturing fiber leather according to claim 1, characterized in that: Adding high-ammonia concentrated natural latex directly into the flocking machine and uniformly discharging the mixed fiber raw materials together is used to replace adding high-ammonia concentrated natural latex to the discharged materials.