CN101886315B - Manufacturing process of high-emulation chamois leather fabric - Google Patents

Abstract

The invention discloses a manufacturing process of a high-simulation suede fabric. Its manufacturing process is: a. Weaving and pretreatment, b. PVA impregnation, c. PU impregnation, d. Dyeing pretreatment, e. Setting, f. Dyeing, g. Reduction cleaning, h. Drying, setting, i. .Sanding, j. Finished product inspection, rolling, storage. The product manufactured by the process of the invention has the advantages of bright color, softness, lightness, high hand feeling, good air permeability, wide application field, low cost and high added value of the product.

Description

The manufacturing process of high imitation suede fabric

technical field

The invention relates to a manufacturing process of a fabric, in particular to a manufacturing process of a simulated suede fabric.

Background technique

With the deteriorating living environment, human beings continue to occupy the living space of animals. Based on the lack of natural resources and the needs of animal protection, it is a trend and necessity to replace natural leather with synthetic materials. At present, in the field of leather application, the global market is actively developing environmentally friendly artificial leather.

As a symbol of beauty, fashion and social status, suede is extremely valuable, but the use of natural suede is limited by factors such as output and price. In order to meet the needs of more consumers, people began to develop artificial suede and imitation suede products. The existing suede-like finishing is usually carried out on the natural cotton base cloth for flocking or flocking and shearing. The manufactured suede-like fabric is only imitated in appearance. In terms of performance, it is especially It is cold resistance, touch, air permeability, moisture permeability and other aspects are not very ideal, which limits the application field of suede fabric, and the added value of the product is low.

Contents of the invention

The purpose of the present invention is to provide a manufacturing process of a high-simulation suede fabric with bright color, softness, lightness, high hand feeling, good air permeability, wide application fields, low cost and high product added value.

In order to achieve the above object, the present invention is achieved through the following technical solutions: the manufacturing process of high-simulation suede fabric, which is characterized in that its technological process is: a. The gray cloth is subjected to fiber opening, shaping, napping and shearing pre-treatment, b. PVA impregnation: the gray cloth is impregnated in the PVA aqueous solution, the temperature of the PVA aqueous solution is controlled at 50°C-100°C, and the impregnation speed of the gray cloth is 5-25 m/ The pressure between the rolling tubes through which the impregnated cloth passes is 0.001MPa-1MPa, and the drying temperature is controlled at 100°C-190°C. c. PU impregnation: the gray cloth is impregnated with PU in the mixture of PU resin and DMF. Control the impregnation speed of the gray cloth to 3-20 m/min, and the pressure between the rolling pipes through which the impregnated cloth passes is 0.001MPa-1MPa. In the aqueous solution of DMF, the impregnated cloth is solidified through the coagulation bath, cleaned and dried, d. Pre-dyeing treatment, the above-mentioned gray cloth is subjected to pre-dyeing treatment in a cleaning agent composed of scouring agent, penetrating agent, liquid alkali, degreasing spirit and water, e. Setting: control the temperature of the above-mentioned gray cloth at 100°C-170°C when setting the shape, The speed of the vehicle is adjusted to 5-30 m/min, f. Dyeing: dye the above gray cloth, g. Reduction cleaning: carry out reduction cleaning on the above dyed cloth, h. Drying and setting: dry and set the shape again after reduction cleaning, The speed of the machine is 30-60 m/min. i. Grinding, according to the product requirements, grinding out the hair feel, if any abnormal hair feel is found, repair it by brushing and shearing, j. Finished product inspection, rolling, and storage.

In the manufacturing process of the high-simulation suede fabric, the formula ratio of each component of the PVA aqueous solution per hundred parts by weight is: PVA 1-20, water 80-99.

In the manufacturing process of the high-simulation suede fabric, the formula ratio of each component of the mixture of PU resin and DMF per hundred parts by weight is: 3-20 PU resin, 80-97 DMF.

In the manufacturing process of the high-simulation suede fabric, the formula ratio of each component of the DMF aqueous solution per hundred parts by weight is: DMF10-20, water 80-90.

According to the manufacturing process of the high-simulation suede fabric, the formula ratio of each component of the cleaning agent for pre-dyeing treatment per hundred parts by weight is: scouring agent 1-3, penetrating agent 1-3, liquid alkali 5-15, removing Oil spirit 1-3, water 80-92.

Compared with the prior art, the present invention has the following advantages: (1) it solves the technological problem of producing high simulation suede fabric with woven fabric as the base cloth, and overcomes the artificial suede production with non-woven fabric as the base cloth. The production process of the fabric is complicated and the cost is high, especially in terms of cold resistance, touch, air permeability, moisture permeability, etc., which are not ideal; (2) the high-simulation suede fabric produced by this process has bright color and softness , lightweight, high hand feel, good air permeability, wide application fields, high product added value and other advantages; (3) it adapts to the development necessity and trend of using synthetic materials instead of natural leather; (4) it can be widely used in glove leather , shoe materials, furniture, sofas and luggage, vehicle and ship interior decoration, clothing fabrics, handbags, craft decorative fabrics and military supplies and many other fields.

Description of drawings

Fig. 1 is the process flow diagram of the manufacturing process of high imitation suede fabric of the present invention.

Detailed ways

Embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings.

Embodiment 1: as shown in Figure 1, the manufacturing process of high-simulation suede fabric is: a. weaving and pre-treatment: the gray cloth is weaved into gray cloth with a loom earlier, and then the gray cloth is carried out fiber opening, shaping, napping and pre-shearing pre-treatment, b.PVA impregnation: impregnate the gray cloth in the PVA aqueous solution, control the temperature of the PVA aqueous solution at 60°C, the speed of the gray cloth impregnation is 20 m/min, the pressure between the rolling pipes through which the impregnated cloth passes is 0.01MPa, and dry The temperature is controlled at 130°C, c. PU impregnation: the gray cloth is impregnated with PU in the mixture of PU resin and DMF, the impregnation speed of the gray cloth is controlled at 15 m/min, and the pressure between the rolling pipes through which the impregnated cloth passes is 0.02MPa , coagulate the impregnated cloth through a coagulation bath in an aqueous solution of DMF, wash and dry it, d. pre-dyeing treatment, the above-mentioned Gray cloth is subjected to pre-dyeing treatment, e. setting: control the temperature of the above gray cloth to 110°C when setting the shape, and adjust the speed to 25 m/min; f. Dyeing: dye the above gray cloth; g. Reduction cleaning: carry out reduction cleaning on the above dyed cloth , h. Drying and shaping: Drying and shaping again after reduction cleaning, the speed is 45 m/min, i. Grinding, according to the product requirements, grinding out the hair feeling, if the hair feeling is found to be different, through pulling and shearing Processing and repairing, j. Finished product inspection, packing, storage.

Embodiment 2: as shown in Figure 1, the manufacturing process of high imitation suede fabric is: a. weaving and pre-treatment: earlier weaving into gray cloth with loom, then fiber opening is carried out to gray cloth, finalizing, napping and shearing pre-treatment, b. PVA impregnation: impregnate the gray cloth in the PVA aqueous solution, control the temperature of the PVA aqueous solution at 98°C, the speed of the gray cloth impregnation is 6 m/min, the pressure between the rolling pipes through which the impregnated cloth passes is 0.2 MPa, and dry The temperature is controlled at 180°C, c. PU impregnation: the gray cloth is impregnated with PU in the mixture of PU resin and DMF, the speed of the impregnated gray cloth is controlled at 7 m/min, and the pressure between the rolling pipes through which the impregnated cloth passes is 0.15 MPa , coagulate the impregnated cloth through a coagulation bath in an aqueous solution of DMF, wash and dry it, d. pre-dyeing treatment, the above-mentioned Gray cloth is subjected to dyeing pre-treatment, e. setting: control the temperature of the above gray cloth to 130°C during setting, and adjust the speed to 10 m/min; f. Dyeing: dye the above gray cloth; g. Reduction cleaning: carry out reduction cleaning on the above dyed cloth , h. Drying and shaping: After reduction and cleaning, dry and shape again at a speed of 35 m/min. i. Grinding. Processing and repairing, j. Finished product inspection, packing, storage.

Embodiment 3: every 100 kilograms of PVA aqueous solution is made up of mixing 2 kilograms of PVA and 98 kilograms of water. Every 100 kilograms of PU resin and DMF mixture is composed of 5 kilograms of PU resin and 95 kilograms of DMF. Every 100 kg of DMF aqueous solution is composed of 10 kg of DMF and 90 kg of water. Every 100 kilograms of dyeing pre-treatment cleaning agents are made up of 1 kilogram of scouring agent, 1 kilogram of penetrating agent, 5 kilograms of liquid caustic soda, 1 kilogram of deoiling spirit and 92 kilograms of water, and all the other are with embodiment 1 or embodiment 2.

Embodiment 4: Every 100 kilograms of PVA aqueous solution is made up of mixing 15 kilograms of polyvinyl alcohol PVA and 85 kilograms of water. Every 100 kilograms of PU resin and DMF mixture is composed of 20 kilograms of polyester polyol PU resin and 80 kilograms of dimethylformamide DMF. Every 100 kg of DMF aqueous solution is composed of 20 kg of dimethylformamide DMF and 80 kg of water. Every 100 kg of cleaning agent for pre-dyeing treatment is composed of 3 kg of TF-108 scouring agent, 3 kg of JFC penetrating agent, 12 kg of liquid alkali (30% NaOH aqueous solution), 3 kg of TF-101C deoiling spirit and 79 kg of water. All the other are with embodiment 1 or embodiment 2.

Claims (5)

1. the manufacturing technique of a high-emulation chamois leather fabric is characterized in that its technical process is:

A. weave and pre-treatment: be woven into grey cloth with loom earlier, again grey cloth opened fibre, typing, plucking and cropping pre-treatment,

B.PVA impregnation: in the aqueous solution of PVA, grey cloth is carried out impregnation and handle; The temperature of the control PVA aqueous solution is at 50 ℃-100 ℃, the grey cloth impregnation speed of a motor vehicle be 5-25 rice/minute, the pressure between the tube rolling that impregnation cloth passes through is 0.001MPa-1MPa; Bake out temperature is controlled at 100 ℃-190 ℃

C.PU impregnation: in the mixed liquor of PU resin and DMF, grey cloth is carried out the PU impregnation and handle; The control grey cloth impregnation speed of a motor vehicle be 3-20 rice/minute, the pressure between the tube rolling that impregnation cloth passes through is 0.001MPa-1MPa, in the aqueous solution of DMF, impregnation cloth is solidified through coagulating bath; And clean, receive and do

D. the pre-treatment of dyeing, in the cleaning agent of forming by scouring agent, bleeding agent, liquid caustic soda, deoil spirit and water to the pre-treatment of dyeing of above-mentioned grey cloth,

E. the typing: controlling above-mentioned grey cloth temperature during typing is 100 ℃-170 ℃, the speed of a motor vehicle transfer to 5-30 rice/minute,

F. dyeing: above-mentioned grey cloth is dyeed,

G. reduction cleaning: above-mentioned stained clot-h is carried out reduction cleaning,

H. dry, finalize the design: dry once more after the reduction cleaning, finalize the design, the speed of a motor vehicle be 30-60 rice/minute,

I. sanding according to product requirement, grinds the feel of wool, and is different as finding that the feel of wool has, and handle through plucking and cropping and repair,

J. finished product inspection, clot, warehouse-in.

2. the manufacturing technique of high-emulation chamois leather fabric according to claim 1 is characterized in that the formula rate of per hundred parts of weight each components of the described PVA aqueous solution is: PVA 1-20, water 80-99.

3. the manufacturing technique of high-emulation chamois leather fabric according to claim 1 is characterized in that the formula rate of per hundred parts of weight each components of mixed liquor of described PU resin and DMF is: PU resin 3-20, DMF80-97.

4. the manufacturing technique of high-emulation chamois leather fabric according to claim 1 is characterized in that the formula rate of per hundred parts of weight each components of the described DMF aqueous solution is: DMF10-20, water 80-90.

5. the manufacturing technique of high-emulation chamois leather fabric according to claim 1 is characterized in that the described formula rate that dyes per hundred parts of weight each components of pre-treatment use cleaning agent is: scouring agent 1-3, bleeding agent 1-3, liquid caustic soda 5-15, the clever 1-3 that deoils, water 80-92.