CN1594682A - Modified chemical fiber using natural protein fiber superfine powder and production process thereof - Google Patents

Abstract

The object of the present invention is to provide a kind of chemical fiber modified with natural protein fiber superfine powder and its production method. The modified chemical fiber is made of superfine protein powder made of natural protein fiber and chemical fiber raw material by blending and spinning. The content of protein powder in the modified fiber is 5%-10%, and the content of fiber raw material is 90%-95%. The physical and mechanical properties of the natural protein fiber superfine powder modified chemical fiber of the present invention can meet the processing performance of conventional clothing fibers, but the hygroscopic performance is significantly improved, and the antistatic performance and dyeing performance are greatly improved. At the same time, it has the effect of imitating wool and silk; its raw material is natural protein fiber material, which has a wide range of sources and low price; the processing route of ultra-fine protein powder is simple and pollution-free; melt spinning or wet spinning does not change the traditional chemical process. The fiber processing route is easy for industrial production and has remarkable economic benefits.

Description

A chemical fiber modified with natural protein fiber superfine powder and its production method

technical field

The invention relates to a chemical fiber modified with natural protein fiber superfine powder and a production method thereof.

Background technique

Chemical fiber occupies a very important position in people's daily life, but with the development of social economy, people put forward new requirements for the characteristics of clothing fabrics. Some disadvantages of chemical fibers, such as poor moisture absorption and air permeability, poor antistatic performance, poor dyeing performance, etc., greatly limit its application in clothing. The research on chemical fiber modification technology has attracted more and more attention from researchers all over the world, among which the use of natural protein materials to modify chemical fibers is a hot spot.

The use of natural protein materials to modify chemical fibers has been reported since the middle of the 20th century. For example, in Japan and China, there are patents for grafting and copolymerizing silk protein, pupa protein, soybean protein and acrylonitrile for the development of modified acrylic fibers. Report (94114071.7, 96116532.4, 02109229.x etc.), the modified polyacrylonitrile fiber has good dyeing performance and luster handle etc., but this aspect technology all does not all can extensive industrial promotion, mainly is that protein can not be in a large amount Fetch restrictions. In the past, the method of dissolving-dialysis was used to produce protein solution, that is, the protein material was dissolved in an alkaline solvent, and the protein was precipitated by adding hydrochloric acid. The cost was high, the route was long, and it would bring certain environmental pollution. , so industrial production is difficult.

Contents of the invention

For the problems existing in the above-mentioned method, the object of the present invention is to provide a kind of chemical fiber modified with natural protein fiber superfine powder and its production method, and its technical solution is:

The modified chemical fiber is made by blending and spinning superfine protein powder made of natural protein fiber and chemical fiber raw material. The content of protein powder in the modified fiber is 5%-10%, and the content of fiber raw material is 90%-95%.

The production method of modified fiber is as follows:

After the selected natural protein fiber material is dried, it is cut into 3-5mm particles by crushing equipment, and then the particles with a particle size of 3-5mm are processed into particles with an average particle size of <5 μm by ultra-fine powder processing equipment. The ultra-fine powder is processed into protein-modified chemical fibers by wet spinning or melt spinning.

The manufacturing process of wet spinning is as follows:

1. Add the superfine protein powder to the proportion of 90-95 parts of fiber polymer material and 5-10 parts of superfine protein powder, and first add the superfine Chinese medicine powder to 0.5% prepared according to the ratio of bath ratio 1:5 in the caustic soda solution, and disperse with ultrasonic waves at room temperature for 30 minutes to form a uniformly dispersed emulsion;

2. Add the emulsion to the spinning stock solution containing 90-95 parts of fiber polymer materials, and stir and defoam for 4-8 hours;

3. Process the processed spinning stock solution according to the conventional wet spinning process route.

According to the melt spinning manufacturing process, the process is as follows:

1. According to the ratio of 5-10 parts of ultrafine protein powder and 90-95 parts of fiber polymer material, the protein powder and the polymer masterbatch for spinning are evenly mixed to make a modified spinning masterbatch;

2. Directly make protein-modified chemical fiber through melt spinning machine.

Due to the adoption of the above technical scheme, the physical and mechanical properties of the natural protein fiber ultrafine powder modified chemical fiber of the present invention can meet the processing performance of conventional clothing fibers, but the hygroscopic performance is significantly improved, and the antistatic performance and dyeing performance are significantly improved. greatly improved. At the same time, it has the effect of imitation wool and imitation silk.

The natural protein fiber superfine powder modified chemical fiber of the present invention is made of natural protein fiber materials, such as silk, animal hair, etc., with wide sources and low price; the ultrafine protein powder processing route is simple and pollution-free; Melt spinning or wet spinning does not change the processing route of traditional chemical fibers, it is easy to industrialized production, and has remarkable economic benefits.

Detailed ways

A chemical fiber modified with natural protein fiber superfine powder and its production method. The modified chemical fiber is formed by blending and spinning superfine protein powder made of natural protein fiber and chemical fiber raw materials. The content of protein powder in the modified fiber is 5%-10%, and the content of fiber raw materials is 90%-95%.

After the selected natural protein fiber material is dried, it is cut into 3-5mm particles by crushing equipment, and then the particles with a particle size of 3-5mm are processed into particles with an average particle size of <5 μm by ultra-fine powder processing equipment. The ultra-fine powder is processed into protein-modified chemical fibers by wet spinning or melt spinning.

The manufacturing process of wet spinning is as follows:

1. Add the superfine protein powder to the proportion of 90-95 parts of fiber polymer material and 5-10 parts of superfine protein powder, and first add the superfine Chinese medicine powder to 0.5% prepared according to the ratio of bath ratio 1:5 In the caustic soda solution, and disperse by ultrasonic waves at room temperature for 30 minutes to form a uniformly dispersed emulsion.

2. Add the emulsion into the spinning stock solution containing 90-95 parts of the fiber polymer material, and stir and defoam for 4-8 hours.

3. Process the processed spinning stock solution according to the conventional wet spinning process route.

According to the melt spinning manufacturing process, the process is as follows:

1. According to the ratio of 5-10 parts of ultrafine protein powder and 90-95 parts of fiber polymer material, the protein powder and the polymer masterbatch for spinning are evenly mixed to make a modified spinning masterbatch.

2. Directly make protein-modified chemical fiber through melt spinning machine.

The manufacturing method of the present invention is further described below in conjunction with the examples.

Example 1

Take silk or silk spinning scraps as raw materials to produce modified polyacrylonitrile fibers containing 5 parts of protein ultrafine powder and 95 parts of polyacrylonitrile as an example.

First remove the impurities in silk or silk spinning waste, then cut the silk or silk spinning waste into small pieces of 3-5mm with crushing equipment, and then use ultra-fine powder processing equipment to process it into an average particle size of < 5μm ultra-fine powder.

Then add 5 parts of silk or silk spinning waste ultrafine powder into 0.5% caustic soda solution with a bath ratio of 1:5, and ultrasonically disperse at room temperature for 30 minutes to make an emulsion with good dispersibility.

Add the emulsion into the spinning stock solution containing 95 parts of polyacrylonitrile, defoam for 6 hours while stirring, and then process it according to the conventional wet spinning route of acrylic fiber to make silk modified polyacrylonitrile fiber.

Example 2

Take animal hair (wool, rabbit hair, etc.) as raw materials, and produce protein-modified polyurethane (polyester) fibers containing 10 parts of protein ultrafine powder and 90 parts of polyurethane as an example.

First remove impurities with animal hair (wool, rabbit hair, etc.), then cut the animal hair into small pieces of 3-5mm with crushing equipment, and then use ultra-fine powder processing equipment to process the animal hair cut into small pieces of 3-5mm Made into superfine powder with average particle size <5μm.

According to the ratio of 10 parts of protein powder and 90 parts of polyurethane masterbatch, the protein powder and polyurethane masterbatch are uniformly mixed to make modified spinning masterbatch, and protein modified polyurethane (polyester) is directly made by melt spinning machine. )fiber.

Claims (4)

1. A chemical fiber modified with natural protein fiber superfine powder, characterized in that the modified chemical fiber is made of superfine protein powder made of natural protein fiber and chemical fiber raw material blending compound spinning , the content of protein powder in the modified fiber is 5%-10%, and the content of fiber raw materials is 90%-95%. 2. A production method of chemical fiber modified with natural protein fiber superfine powder, which is characterized in that the production method is as follows: after drying the selected natural protein fiber material, it is cut into 3-5mm particles by crushing equipment , and then use ultra-fine powder processing equipment to process particles with a particle size of 3-5 mm into ultra-fine powder with an average particle size of <5 μm, and then use wet spinning or melt spinning to process protein modified powder Sexual chemical fiber. 3, a kind of production method of the chemical fiber modified with natural protein fiber superfine powder as claimed in claim 2, it is characterized in that by wet spinning manufacturing process approach is as follows: 1. According to the ratio of 90-95 parts of fiber polymer material and 5-10 parts of natural protein fiber superfine powder, first add natural protein fiber superfine powder to 0.5% caustic soda prepared in a ratio of 1:5 solution, and disperse with ultrasonic waves at room temperature for 30 minutes to form a uniformly dispersed emulsion; 2. Add the emulsion to the spinning stock solution containing 90-95 parts of fiber polymer materials, and stir and defoam for 4-8 hours; 3. Process the processed spinning stock solution according to the conventional wet spinning process route. 4, a kind of production method of the chemical fiber modified with natural protein fiber superfine powder as claimed in claim 2, it is characterized in that by melt spinning manufacturing process approach is as follows: 1. According to the ratio of 5-10 parts of natural protein fiber superfine powder and 90-95 parts of fiber polymer material, the natural protein fiber superfine powder and the polymer masterbatch for spinning are evenly mixed to make a modified spinning masterbatch; 2. Directly make protein-modified chemical fiber through melt spinning machine.