Manufacturing process of water-based carbon fiber microfiber leather

Abstract

The invention relates to the technical field of leather, in particular to a manufacturing process of water-based carbon fiber microfiber leather, which comprises the steps of raw material purchasing, bass treatment, alkali deweighting treatment, primary sanding, cutting, dyeing, secondary sanding, shaping and drying, softening and the like. The water-based carbon fiber microfiber leather has the beneficial effects that the obtained water-based carbon fiber microfiber leather has the advantages of no color migration, sunlight resistance, no color fading, perspiration resistance and high color fastness, and the texture and the hand feeling are similar to those of cow skin and sheep skin.

Description

Technical Field

[0001] The invention relates to the technical field of leather, and in particular to a production process of water-based carbon fiber ultra-fiber leather. Background Art

[0002] With the strengthening of environmental awareness, genuine leather has been increasingly replaced by imitation leather. Microfiber leather has better chemical resistance, mildew resistance, strength, tearing and other physical properties than genuine leather. It is regarded as the "fourth generation of artificial leather" by the synthetic leather industry. However, the existing water-based microfiber leather has defects in feel, service life, texture, etc. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide a production process of water-based carbon fiber ultra-fiber leather in view of the deficiencies of the above-mentioned prior art.

[0004] To achieve the above object, the present invention provides the following technical solution: a process for producing water-based carbon fiber ultra-fiber leather, characterized in that it comprises the following steps:

[0005] (1) Raw material procurement: procurement of non-woven fabrics made of Dingdao microfibers and solvent-free epoxy carbon fibers, wherein the Dingdao microfibers contain 70% nylon and 30% polyester;

[0006] (2) Base: The nonwoven fabric in step (1) is sequentially passed through a bubble tank, a pressure tank, an oven, a cooling roller and a winding roller of a setting machine to obtain a semi-finished product.

[0007] (3) Alkali weight reduction treatment: placing the semi-finished product obtained in step (2) into a dyeing tank to open the fibers and remove 30% of the polyester in the semi-finished product;

[0008] (4) initial sanding: the semi-finished product obtained in step (3) is placed on a quantitative water mill for preliminary sanding at a water temperature of 2°C-3°C to obtain a semi-finished product with a preliminary velvety feel, and the quantitative water mill is set with a pressure value according to the required leather thickness;

[0009] (5) Cutting: using a leather splitting machine to split the semi-finished product obtained in step (4) into corresponding thicknesses according to customer requirements;

[0010] (6) Dyeing: Add color powder into a high temperature and high pressure dyeing tank for dyeing;

[0011] (7) Secondary sanding: The dyed semi-finished product is placed in a water-washing sanding machine for beating and sanding at a sanding speed of 1000 r / min;

[0012] (8) Shaping and drying: The semi-finished product after the second sanding is placed in an oven for drying;

[0013] (9) Softening: The semi-finished product obtained in step (8) is physically softened using an airflow softening machine to obtain a water-based carbon fiber microfiber leather with a suede feel.

[0014] The present invention is further configured as follows: the epoxy carbon fiber solution is placed in the bubbling tank in step (2), and the weight of the non-woven fabric after passing through the bubbling tank is 3000-4000 g / m 2 .

[0015] The present invention is further configured as follows: applying pressure to the pressure tank in step (2) to squeeze out the excess epoxy carbon fiber solution from the non-woven fabric after soaking so that the weight of the non-woven fabric is reduced to 1500 g / m 2 .

[0016] The present invention is further configured as follows: the oven temperature in step (2) is set to 200° C.-210° C., the drying speed is 6 m / min, and the oven length is 30 meters.

[0017] A further configuration of the present invention is that the cooling roller in step (2) is cooled by water at room temperature.

[0018] A further configuration of the present invention is that 30% of the weight of the cloth is put into the dyeing vat, and the semi-finished product after 30% of the polyester is removed by the alkali reduction reaction is dried at a high temperature of 105°C-110°C.

[0019] The present invention has the above characteristics: the water-based carbon fiber ultra-fiber leather obtained by the production process has good physical properties, has the advantages of no color transfer, sunlight resistance, no fading, sweat resistance, high color fastness, and has a soft drape; in the bass step, the pressure in the pressure tank is applied by an oil hydraulic press to ensure the extrusion effect; benzene reduction is not selected in the alkali reduction treatment to improve the environmental protection effect, and the alkali resistance of the leather after the alkali reduction treatment is greatly improved, and it does not change color when encountering alkali, and at the same time, 30% of the polyester is removed to improve the softness of the leather; the first sanding uses a water mill with a certain pressure value to flatten the uneven surface of the leather, and the water temperature used is 2°C-3°C, which can protect the leather from damage to the greatest extent; the second sanding uses a water-washing sanding machine to wash away the floating hair on the leather surface while sanding.

[0020] The present invention is further described in detail below in conjunction with embodiments. DETAILED DESCRIPTION

[0021] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed. However, as long as they are within the scope of the claims of the present invention, they are protected by the patent law.

[0022] A process for producing water-based carbon fiber ultra-fiber leather comprises the following steps:

[0023] (1) Raw material procurement: procurement of non-woven fabrics made of Dingdao microfibers and solvent-free epoxy carbon fibers, wherein the Dingdao microfibers contain 70% nylon and 30% polyester;

[0024] (2) Base: The non-woven fabric in step (1) is sequentially passed through the bubble tank, pressure tank, oven, cooling roller and winding roller of the setting machine to obtain a semi-finished product, wherein the bubble tank is filled with epoxy carbon fiber solution, and the non-woven fabric after passing through the bubble tank has a gram weight of 3000-4000 g / m 2 , apply pressure on the pressure tank to squeeze out the excess epoxy carbon fiber solution from the non-woven fabric after soaking, so that the weight of the non-woven fabric is reduced to 1500g / m 2 , the oven temperature is set to 200℃-210℃, the drying speed is 6m / min, the oven length is 30 meters, and the cooling roller is cooled by normal temperature water;

[0025] (3) Alkali weight reduction treatment: The semi-finished product obtained in step (2) is placed in a dyeing vat to open the fibers and remove 30% of the polyester in the semi-finished product. Alkali accounting for 30% of the weight of the cloth is placed in the dyeing vat, and the semi-finished product after 30% of the polyester is removed by alkali weight reduction reaction is dried at a high temperature of 105°C-110°C.

[0026] (4) initial sanding: the semi-finished product obtained in step (3) is placed on a quantitative water mill for preliminary sanding at a water temperature of 2°C-3°C to obtain a semi-finished product with a preliminary velvety feel, and the quantitative water mill is set with a pressure value according to the required leather thickness;

[0027] (5) Cutting: using a leather splitting machine to split the semi-finished product obtained in step (4) into corresponding thicknesses according to customer requirements;

[0028] (6) Dyeing: Add color powder into a high temperature and high pressure dyeing tank for dyeing;

[0029] (7) Secondary sanding: The dyed semi-finished product is placed in a water-washing sanding machine for beating and sanding at a sanding speed of 1000 r / min;

[0030] (8) Shaping and drying: The semi-finished product after the second sanding is placed in an oven for drying;

[0031] (9) Softening: The semi-finished product obtained in step (8) is physically softened using an airflow softening machine to obtain a water-based carbon fiber microfiber leather with a suede feel.

Claims

1. A process for producing water-based carbon fiber microfiber leather, characterized in that: The following steps are involved: (1) Raw material procurement: procurement of non-woven fabrics made of Dingdao microfibers and solvent-free epoxy carbon fibers, wherein the Dingdao microfibers contain 70% nylon and 30% polyester; (2) Base: The nonwoven fabric in step (1) is sequentially passed through a bubble tank, a pressure tank, an oven, a cooling roller and a winding roller of a setting machine to obtain a semi-finished product; (3) Alkali weight reduction treatment: placing the semi-finished product obtained in step (2) into a dyeing tank to open the fibers and remove 30% of the polyester in the semi-finished product; (4) initial sanding: the semi-finished product obtained in step (3) is placed on a quantitative water mill for preliminary sanding at a water temperature of 2°C-3°C to obtain a semi-finished product with a preliminary velvety feel, and the quantitative water mill is set with a pressure value according to the required leather thickness; (5) Cutting: using a leather splitting machine to split the semi-finished product obtained in step (4) into corresponding thicknesses according to customer requirements; (6) Dyeing: Add color powder into a high temperature and high pressure dyeing tank for dyeing; (7) Secondary sanding: The dyed semi-finished product is placed in a water-washing sanding machine for beating and sanding at a sanding speed of 1000 r / min; (8) Shaping and drying: The semi-finished product after the second sanding is placed in an oven for drying; (9) Softening: The semi-finished product obtained in step (8) is physically softened by using an airflow softening machine to obtain a water-based carbon fiber microfiber leather with a suede feel.

2. The process for producing water-based carbon fiber ultra-fiber leather according to claim 1, characterized in that: The epoxy carbon fiber solution is placed in the bubbling tank in step (2), and the weight of the non-woven fabric after passing through the bubbling tank is 3000-4000 g / m 2 .

3. The process for producing water-based carbon fiber ultra-fiber leather according to claim 1, characterized in that: The pressure tank in step (2) is pressurized to squeeze out the excess epoxy carbon fiber solution from the non-woven fabric after soaking, so that the weight of the non-woven fabric is reduced to 1500 g / m 2 .

4. The process for producing water-based carbon fiber ultra-fiber leather according to claim 1, characterized in that: The oven temperature in step (2) is set to 200° C.-210° C., the drying speed is 6 m / min, and the oven length is 30 meters.

5. The process for producing water-based carbon fiber ultra-fiber leather according to claim 1, characterized in that: The cooling roller in step (2) is cooled by water at room temperature.

6. The process for producing water-based carbon fiber ultra-fiber leather according to claim 1, characterized in that: Alkali accounting for 30% of the weight of the cloth is put into the dyeing vat, and the semi-finished product after 30% of the polyester is removed by alkali reduction reaction is dried at a high temperature of 105°C-110°C.