CN104233574B - A kind of for towel blended yarn woven fabric - Google Patents

Abstract

The invention discloses a bamboo fiber soybean protein blended fabric used for towels. The preparation steps are as follows: step (1) select excellent bamboo species, and process to obtain crude fiber; step (2) prepare aspergillus niger, bacillus subtilis, lichen Bacillus and Lactococcus lactis are formulated into composite bacterial agent according to the weight ratio of 3:1:1:1.5; step (3) processes thick bamboo fiber with composite bacterial agent; step (4) takes soybean protein fiber, and bamboo Fiber: Soybean protein fiber is 8:1 or 9:1. Prepare bamboo fiber and soybean protein fiber, and step (5) prepare a blended fabric of bamboo fiber and soybean protein fiber according to the warp and weft yarn process. <pb pnum="1" />

Description

A blended fabric for towels

technical field

The invention relates to a preparation method of a novel fabric, in particular to a bamboo fiber soybean protein blended fabric used for towels and a preparation method thereof.

Background technique

Soybean protein fiber is a new type of regenerated plant protein fiber. Its main raw materials are soybean meal, hydroxyl and cyano polymers. Soybean protein fiber is processed by spinning. Because soybean protein fiber is mainly composed of soybean protein, and there is no pollution to the environment, air, water quality and soil in the manufacturing process, it is a kind of green ecological environmental protection fiber. The fiber is fine in fineness, light in specific gravity, good in acid and alkali resistance, rich in luster, good in moisture absorption and moisture conductivity, soft to the touch, has the luster of natural silk, and has good adaptability when in contact with human skin.

Bamboo grows fast, renews quickly, distributes widely, and has high yield. Compared with wood, bamboo has the characteristics of high strength, good toughness, and high hardness. It is an ideal raw material for structural materials and fiber materials. It is used in construction industry, handicraft industry, agriculture and fishery has been widely used. At present, bamboo fiber has been widely used as a substitute for wood and glass fiber to strengthen the polymer matrix. Bamboo fiber currently on the market has following two classes: the one, the regenerated fiber that is produced with bamboo pulp, is commonly referred to as bamboo pulp fiber; Because bamboo fiber has more superior properties in terms of hygroscopicity, air permeability, and spinnability, the study of spinnable bamboo fiber has obvious economic benefits and good social benefits.

The chemical components of natural bamboo fiber are mainly cellulose, hemicellulose and lignin, all of which belong to high polysaccharides, and the total amount accounts for more than 90% of the dry mass of the fiber. The second is protein, fat, pectin, tannin, pigment, ash, etc., and microorganisms contain a large number of enzymes and proteins that have good processing effects on these components, so they are very suitable for treatment with microorganisms. Some people have also applied microorganisms to the treatment of natural fibers, such as using fungi to extract spinnable bamboo fibres, but there are still very few studies on microbial treatment of bamboo fibers.

Using microorganisms to treat natural fibers to improve the performance of natural fibers has the advantages of low cost, environmental protection, high efficiency, and simple and easy operation. In the long-term production practice, the present inventor has discovered a method of utilizing compound microorganisms to process natural bamboo fibers to prepare new and excellent fabrics.

Contents of the invention

The purpose of the present invention is to solve the deficiencies in the prior art, and provide a novel processing method for bamboo fiber soybean protein blended fabrics for towels. Compared with ordinary bamboo fiber fabrics, the fabrics produced by this method have good air permeability and affinity. Skin resistance, very wear-resistant, excellent antibacterial properties and other properties, very suitable as a towel.

The technical scheme that the present invention adopts is as follows:

A novel bamboo fiber soybean protein blended fabric for towels, the preparation steps of which are as follows:

Step (1) selects good bamboo species for use, and processes to obtain crude fiber;

Step (2) Aspergillus niger, Bacillus subtilis, Bacillus licheniformis and Lactococcus lactis are formulated into a composite bacterial agent according to the weight ratio of 3:1:1:1.5;

Step (3) processes thick bamboo fiber with composite bacterial agent;

Step (4) takes by weighing soybean protein fiber, according to weight percent bamboo fiber: the ratio of soybean protein fiber 9: 1 is prepared bamboo fiber and soybean protein fiber,

Step (5) Prepare the blended fabric of bamboo fiber and soybean protein fiber according to the warp and weft yarn technology.

As a kind of preferred version, the method for obtaining the crude fiber described in step (1) is: get the biennial green bamboo, remove the tip and the root, remove the bamboo joints, remove the green, split the bamboo tube into bamboo chips with a width of 8cm, place Cook in boiling water to soften the bamboo slices, take them out after 2 hours, beat the bamboo slices to loosen them, and then manually divide them into filaments. Repeat this operation 4 times, dry at 70°C, and obtain natural thick bamboo fibers with a diameter of 1.2mm;

As a kind of preferred scheme, the method for processing described in step (3) is: after bacterial classification is activated, thick bamboo fiber raw material is piled up in layers, when piling up 25cm thick, spray the bacterium liquid after the activation once, place 3 days at room temperature .

Compared with the prior art, the present invention has the beneficial effects of:

(1) The present invention uses composite microbial bacterial agent to process bamboo fiber raw material, and effect is remarkable.

(2) The prepared bamboo fiber fabric is smooth and breathable, and has excellent mechanical properties. Compared with ordinary bamboo fiber fabric, it has good skin affinity, antibacterial property and wear resistance.

(3) Microbes are used instead of chemical modification, all-biological methods, natural and environmentally friendly, without residue; instead of enzymatic methods, the cost is low.

Embodiment 1: the preparation method of crude fiber

Select good bamboo species, process and obtain crude fiber, the steps are as follows;

Step (1) Take some two-year-old green bamboo, remove the tip and root, remove the bamboo joints, remove the green, and split the bamboo tube into bamboo slices with a width of 8 cm;

Step (2) putting the bamboo chips obtained in step (1) into boiling water to soften the bamboo chips, and taking them out after 2 hours;

Step (3) beat the bamboo chips to loosen them, and then manually divide them into filaments;

Step (4) repeats operation like this 4 times, 70 ℃ of dryings, obtain the natural thick bamboo fiber of diameter 1.2mm;

Embodiment 2: the preparation method of composite starter

The microorganisms described in the present invention are all conventional bacterial strains disclosed in the prior art, and can be purchased through any commercial channel, and the activation of bacterial strains is according to the conventional methods in the art:

1) Prepare Aspergillus niger (Aspergillus nige):

A. Incline cultivation method

Test tubes were sterilized at 120°C for 20 minutes, placed on an inclined plane, cooled, and inoculated. Cultivate at 30°C until black spores cover the slope.

B.K culture bottle spores

Take 10°Brix wort and add 2% agar, put it into a 500mL K-type culture bottle, sterilize it at 121°C for 20min, spread it on an inclined surface and cool it down. Insert 1mL of spore suspension to ensure that the suspension is inoculated on the entire surface of the culture medium; put it sideways into an incubator, and cultivate at 30°C until the black spores cover the slope.

C. Solid-state scale-up culture

The K-bottle spores were made into a spore suspension, and 200kg of solid culture medium (140kg of bran, 60L of 10°Brix wort) was taken, mixed well, put into a shallow dish, and sterilized at 121°C for 1 hour. After cooling down, insert the spore suspension. The culture temperature is controlled at 30°C, the humidity is 80-90%, the material is turned every 10 hours, and the culture time is 3 days; the culture can be ended when the culture material is full of spores.

Drying and pulverization: After the fermentation is over, put the shallow plate on the fluidized bed to dry, and the drying temperature is controlled at 60°C. When the moisture content of the material is lower than 10%, the solid compost is pulverized with a pulverizer. The pore size of the pulverization of the material is More than 100 mesh.

2) Prepare Bacillus subtilis, Bacillus licheniformis, Lactococcus lactis:

Slant medium (g/L): 20 glucose, 5 yeast powder, 10 soybean peptone, 10 beef extract, 5NaCl, 10 sodium acetate, 2 ammonium citrate, 0.2MgSO4 7H2O, 0.05MnSO4 7H2O, 15 agar, pH6. 5.

Fermentation medium (g/L): 40 glucose, 10 yeast powder, 10 soybean peptone, inorganic salt (0.01NaCl, 0.5 sodium acetate, 0.2 ammonium citrate, 0.2KH2PO4, 0.2MgSO4 7H2O, 0.05MnSO4 7H2O), pH6 .5.

Fermentation method: take 1 ring on the slope and inoculate it into a 500mL shake flask with a liquid volume of 150mL, culture at 37°C and 150rpm for 24h to logarithmic phase. The cells were collected by centrifugation at 5000rpm for 10min.

The prepared Aspergillus niger, Bacillus subtilis, Bacillus licheniformis and Lactococcus lactis are prepared in a weight ratio of 3:1:1:1.5 to prepare a composite bacterial agent.

Embodiment 3: process rough bamboo fiber with composite leavening agent

The natural rough bamboo fiber obtained by implementing 1 with compound microorganism treatment, step is as follows:

Step (1) Bacteria activation: Pour 30 g of the above-prepared composite bacteria into 100 liters of 1°Brix wort, stir and mix well, and activate after 2 hours at 35°C;

Step (2) thick bamboo fiber raw material is piled up in layers, when piling up 25cm thick, spray bacterium liquid once;

Step (3): Place at room temperature for 3 days.

The coarse bamboo fiber treated with the compound microbial fermentation agent can be obtained.

Embodiment 4: bamboo fiber and soybean protein fiber are blended into fabric

Weigh the soybean protein fiber, according to the percentage by weight, the bamboo fiber obtained in Example 3: the ratio of soybean protein fiber is 8:1 or 9:1 to prepare bamboo fiber and soybean protein fiber.

The blended fabric of bamboo fiber and soybean protein fiber was prepared according to the warp and weft yarn technology.

Prepared 2 kinds of fabrics, said fabrics are: warp and weft yarn bamboo fiber fiber and soybean protein fiber

A fabric: according to the mass percentage, the obtained bamboo fiber: soybean protein fiber is a blended fabric of bamboo fiber and soybean protein fiber prepared at a ratio of 9:1.

B fabric: according to the mass percentage, the obtained bamboo fiber: soybean protein fiber is a blended fabric of bamboo fiber and soybean protein fiber prepared at a ratio of 8:1.

Embodiment 5: detection analysis

The untreated bamboo fiber is separately compiled into fabric C according to a conventional method;

Fabricate fabric and D (bamboo fiber: soybean protein fiber ratio is 9:1) according to the method for embodiment 4 and soybean protein blending;

C fabric and D fabric are used as control groups.

The fabrics A, B, C, and D are tested and analyzed in various aspects.

Antibacterial ability test:

Using the "oscillating bottle method" test, the antibacterial fabric and sample bacteria are added to a flask filled with buffer solution, and after shaking with an oscillator at a speed of 320-340r/min below 25 degrees Celsius for 1 hour, the activity before and after shaking is calculated respectively. The number of bacteria, and then calculate the antibacterial rate according to the formula: antibacterial rate = (A-B/A) * 100%

In the formula: A is the number of viable bacteria before shaking; B is the number of viable bacteria after shaking.

Test bacteria: Staphylococcus aureus.

Strain concentration: Dilute 10,000 times in 6h culture solution.

Abrasion resistance test:

Grind the fabric for 20 times on the Y522 fabric abrasion testing machine, then place the sample in a solution of detergent 5g/L (bath ratio 1B50), wash at 40e for 10min; then rinse with clean water, spin dry, and wash repeatedly 10 times; finally dry at 80e.

Table 1 performance test data

Test items A fabric B fabric C fabric D fabric softness very soft very soft generally softer Skin friendly very good very good generally very good Antibacterial ability 80.1% 79.8% 30.1% 30.1% wear resistance 96% 93% 57% 55%

The comparison shows that the fabric obtained by the present invention has excellent performance and is very suitable for being used as a towel.

Fabrics with significantly improved performance can be obtained by blending bamboo fiber and soybean protein fiber treated with compound microbial preparations. It is speculated that the mechanism may be due to the fact that microorganisms contain a large number of biological enzymes, which can produce synergistic effects when acting on natural fibers, making the properties of fibers There has been a change.

The above is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto, any person familiar with the technical field within the technical scope disclosed in the present invention, according to the technical solution of the present invention Any equivalent replacement or change of the inventive concepts thereof shall fall within the protection scope of the present invention.

Claims (2)

1. a preparation method for a bamboo fiber soybean protein blended fabric for towels, characterized in that its preparation steps are as follows: Step (1) select excellent bamboo species, and process to obtain crude fiber; Step (2) Aspergillus niger, Bacillus subtilis, Bacillus licheniformis and Lactococcus lactis are prepared into a composite bacterial agent according to the weight ratio of 3:1:1:1.5; Step (3) processing rough bamboo fiber with composite bacterial agent; Step (4) Weigh the soybean protein fiber, according to the percentage by weight, prepare the bamboo fiber and soybean protein fiber in the ratio of 8:1 or 9:1 for the treated coarse bamboo fiber: soybean protein fiber, Step (5) preparing a blended fabric of bamboo fiber and soybean protein fiber according to the warp and weft yarn process; Wherein the method for obtaining the crude fiber described in step (1) is: take biennial green bamboo, remove the tip and root, remove the bamboo joints, remove the green, split the bamboo tube into bamboo slices, boil in boiling water to soften the bamboo slices, Take it out after 2 hours, beat the bamboo slices to make them loose, and then divide them by hand, repeat this operation 4 times, and dry at 70°C to obtain natural thick bamboo fibers with a diameter of 1.2mm; The treatment method in step (3) is as follows: after the bacteria are activated, the thick bamboo fiber raw materials are piled up in layers, and when the thickness of the pile is 25 cm, the activated bacteria liquid is sprayed once, and placed at room temperature for 3 days. 2. the lining that prepares with the preparation method described in claim 1.