CN101294316B

CN101294316B - Method for producing protein viscose fiber with animal protein and plant fiber

Info

Publication number: CN101294316B
Application number: CN2007100977238A
Authority: CN
Inventors: 褚全慧
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-04-29
Filing date: 2007-04-29
Publication date: 2011-05-04
Anticipated expiration: 2027-04-29
Also published as: CN101294316A

Abstract

The invention provides a method for extracting animal protein from hair and skin of animals and co-spinning with vegetable fiber. Protein viscose fiber can be prepared by fixing protein on protein fiber, and has wool feeling, elasticity and better dry strength than wool. The protein viscose fiber can be prepared into wool materials or wool yarns by blended spinning with wool and synthetic fiber or pure spinning to serve as a good substitute of wool. The method comprises the following steps: extracting protein from hair and skin of animals, denaturing, and co-spinning with alpha-cellulose in acid bath, wherein the ratio of the protein liquid to alpha-cellulose is 3:7 to 3.5:6.5. The denatured protein liquid can be made into protein viscose spinning liquid by mixing in a mixing segment in the flow of a mixing machine, and can be used for spinning after defoaming and aging.

Description

Animal protein and string are made the protein cellulose viscose method

One: technical field

Textile industry is the conventional industries of China, and the outlet textiles of China is resource-hungry basically, and competitiveness is not too strong in the international market, and working depth is not too big, and surcharge is not too high, does not sell good price.The outlet garment material has half to lean on import, and some also leans on import domestic high-grade fabric.Use up considerable foreign exchange every year.So at China's textile product structural adjustment give prominence to the key points chemical fibre and garment material.Utilize new and high technology, methods such as new material are transformed the backward situation of China's textile industry.

Two: background technology

The imitation natural fabric, the surcharge of raising viscose.The characteristics of wool maximum are bulk plentiful, and drapability is good.This all faces upward volt wool fibre specific form structure.Scale appearance cortex, inferior epidermal area, endepidermis layer have encased fibrillating fibre and residual cells nuclear.So the lining that wool and other fiber blend are produced belongs to high-grade fabric, obtains consumers in general's favor.But the price height, broad masses cannot afford to wear.In order to give the viscose emulation technology, utilize animal protein and plant alpha cellulose cospinning, it characteristic that possesses cold wool is not had, it has the feel of wool and elasticity, and it is better than wool by force to do, and is suitable for and wool, synthetic fiber blending or pure spinning, and makes woolen cloth or knitting wool.It is a kind of good kind that replaces wool.

China's protein resource is abundant, and all there are meat processing combine, slaughterhouse and tannery in various places, and the hairs of annual various animals and the leftover bits and pieces of tannery have several hundred million tons.Therefore, utilize these richs in natural resources,, increase the designs and varieties of China's textile product, improve the class of China's textile product, have meaning of crucial importance for China's woolen industry provides new raw material.

Three: summary of the invention

The invention solves the condition of animal protein regeneration and the selection of protein cross agent, and sulfuric acid concentration in the proportioning that suits of mould rope alpha cellulose and protein and the coagulating bath, cured is to the influence of end product quality.The reason that further research strand protein comes off and the way of solution are improved the protein cellulose viscose quality.

Four: specific implementation method

(1): the degenerative treatments of protein

1, the preparation flow of albuminate liquid

Ox hair, pig hair, chicken feather, ox-hide leftover bits and pieces etc. → hot expanded → dissolving → → filtration → regeneration → dissolving → cyanoethylation → methylolation → albuminate liquid.

2, the preparation of albuminate liquid

(1) impurity elimination: after animal wool, skin dedusting, use 2 kilograms per centimeter ²Expanded 20 ~ 30 minutes of steam.

(2) dissolving animal hair, skin:

Process conditions: alkali lye (NaOH) concentration: 30-32 grams per liter

Liquor ratio: 1: 5

Initial temperature: 80-85 ℃

Insulation: 60-70 ℃

Temperature retention time: 120-140 minute.

(3) filter: filter with flame filter press.

(4) protein renaturation:

Process conditions: will cross the protein liquid of filtration, and use 10%H ₂SO ₄The solution neutralization,

Regulate PH=4, albumen precipitation is separated out, filter, washing is to neutral.

(5) regeneration protein dissolution

Process conditions: liquor ratio: (pressing the over dry protein refractometer) 1: 8

Concentration of lye: 20-25 grams per liter

Temperature: 65-70 ℃.

(6) cyanoethylation:

With the protein dissolution of purifying in the NaOH of 20-25 grams per liter solution, liquor ratio (press the over dry protein refractometer) 1: 8, temperature: 65-70 ℃, behind the protein dissolution of waiting to regenerate, add the acrylonitrile of 25-30% (press the over dry protein refractometer), descend to be incubated 2 hours at 50-60 ℃.

(7) methylolation:

Protein is in course of dissolution, and the part molecule is strong to be damaged, and should carry out crosslinked or grafting, to improve intensity, resiliency and the heat endurance of fiber.

Behind the protein liquid cyanoethylation, the formalin (pressing the over dry protein refractometer) that adds 0.5-1 gram molecule 40% is after being incubated 3-3.5 hour under 70-85 ℃, and the placement room temperature is stand-by.

(2): the protein cellulose viscose technological process

Albuminate liquid

↓

String pulp → the cut dregs of rice → batch viscose machine → back dissolving → mixing → albumen rayon spinning liquid → filter together → two road filtration → deaeration → maturation → spinning → plasticization drawing → wrapping wire → cut-out → post processing → drying → finished products.

(3): technological parameter

Pulp methyl fiber content 92.57% moisture 14.5%

Viscose glue contains the fine 8.5% viscose glue alkalinity 6% of first

CS ₂Consumption 31%.

The batch viscose machine method

1, alkalization:

Alkali is fine to be formed: first fibre: 22.15% alkalinity: 16.11%

Auxiliary agent title: AC18 auxiliary dosage: 0.5%

Alkalization time: 40 minutes alkalization temperatures: 45 ℃.

2, sulfonation

The sulfonation time: 30 minutes sulfonation temperatures: 35 ℃.

3, dissolving:

Dissolution time: 40 minutes solution temperatures: 13 ℃

Molten back glue: viscose glue contains the first fibre: 8.63% viscose glue contains alkali: 6.51%

Esterification degree: 52.69% viscosity was greater than 100 seconds

Salt figure (NaCl):＞10 (20%NaCl represents).

(4): the mixing of albumen viscose solution

The cyanoethylation protein liquid that will contain methylol adds and to have dissolved in the good viscose glue stoste, stirs 60 minutes, after filtration, maturation and deaeration.

Process conditions:

Filter together: 1 felt, 1 mansion 1 is thin

Two roads filter: 2 suedes, 2 mansions 1 are thin

Maturation time: 3-4 hour

Maturation temperature: 22 ℃

Viscose glue salt figure (NaCl): 3-4 (20%NaCl represents) before spinning.

(5): spinning

Process conditions: spinning speed: 26---28 meters/minute

Spinning pressure: 2 kilograms per centimeter ²

Length is soaked in spinning: the 350-400 millimeter

Coagulating bath: H ₂SO ₄The 62-64 grams per liter

Na ₂SO ₄The 320-330 grams per liter

ZnSO ₄The 12-15 grams per liter

Temperature: 45-50 ℃

Plasticization drawing: 45%

Plasticizing-bath: H ₂SO ₄The 5-10 grams per liter

Temperature: 85---90 ℃.

(6): post processing

1, heat is lax: water temperature: 70-80 ℃.

2, albumen solidifies:

Chromic salts is handled: chromic salts concentration (proportion 1.30-1.45), basicity 35-38%, temperature 60-70 ℃, 2 hours time.

3, the washing: 2 to 3 times temperature 40-50 ℃.

4, desulfurization: NaOH concentration 2 grams per liters, temperature 60-70 ℃.

5, the washing: 2 to 3 times temperature 40-50 ℃.

6, bleaching: Peracetic acid is floated, consumption 3-4%, 50 ℃ of temperature, 90 minutes time, PH:5.

7, pickling: HCL concentration 2 grams per liters, normal temperature, time 5-10 minute.

8, washing: normal temperature is washed till neutrality.

9, oil: turkey red oil concentration 2-4 grams per liter, 50 ℃ of temperature, 20 minutes time.

10, oven dry: use the 2-3 kilograms per centimeter ²Steam baking 20 minutes.

(7): animal protein and alpha cellulose proportioning

Be 3: 7～3.5: 6.5, its product quality: do the strong 2.3 gram/dawn, driedly stretch 21%,

Fiber number 3.11-4.5oltex, 5% specified elongation elasticity 51-55%.

(8): cured

Will be cured processing to containing the higher protein cellulose viscose of protein, with 35% basicity chromic anhybride solution-treated, 50 ℃ of temperature, handle 2 hours after wash repeatedly, strand contains protein stabilization, good hand touch, and the crimpness height, good springiness, outward appearance is near wool.

(9): the protein cellulose viscose bleaching

Be preferably under the acid condition bleaching, the protein on the fiber can not be subjected to the alkali effect in bleaching process like this, makes partially protein not exist and be decomposed with macromolecular compound; Protein adds in the viscose glue simultaneously, and the viscose glue alkalinity is higher and influenced by sulfide, and the partially protein hydrolysis is arranged again, becomes low molecular compound, and partially protein can not be crosslinked with fiber.When with Peracetic acid bleaching, PH=5, under solutions of weak acidity, the protein content of strand changes not quite basically.

Claims

1. animal protein and string are made the protein cellulose viscose method, it is characterized in that this method technological process is:

Albuminate liquid

↓

String pulp → the cut dregs of rice → batch viscose machine → back dissolving → mixing → albumen rayon spinning liquid → filter together → two road filtration → deaeration → maturation → spinning → plasticization drawing → wrapping wire → cut-out → post processing → drying → finished products;

And the technological process of above-mentioned making albuminate liquid is:

Ox hair, pig hair, chicken feather, ox-hide leftover bits and pieces---→ hot expanded---→ dissolving---→ filtration---→ regeneration---→ dissolving---→ cyanoethylation---→ methylolation---→ albuminate liquid.

2. animal protein according to claim 1 and string are made the protein cellulose viscose method, it is characterized in that, in the condition that ox hair, pig hair, chicken feather, ox-hide leftover bits and pieces are dissolved are:

NaOH concentration of lye: 30-32 grams per liter; Liquor ratio: 1: 5; Initial temperature: 80-85 ℃; Insulation: 60-70 ℃; Temperature retention time: 120-140 minute.

3. animal protein according to claim 1 and string are made the protein cellulose viscose method, it is characterized in that the process conditions of protein renaturation and protein dissolution are respectively in the described technological process: protein renaturation, with crossing the protein liquid that filters, use 10%H ₂SO ₄PH=4 is regulated in the solution neutralization, and albumen precipitation is separated out, and filters, and washing is to neutral; The regeneration protein dissolution, process conditions: liquor ratio: 1: 8, concentration of lye, 20-25 grams per liter, temperature: 65-70 ℃.

4. animal protein according to claim 1 and string are made the protein cellulose viscose method, it is characterized in that comprise the albumen solidification process in the post processor, its technology is: with 35% basicity chromic anhybride solution-treated protein cellulose viscose, 50 ℃ of temperature were handled 2 hours after wash repeatedly.