CN100424242C

CN100424242C - Zein fiber and its preparing process

Info

Publication number: CN100424242C
Application number: CNB200610127343XA
Authority: CN
Inventors: 韩晓根; 朱海山
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-04-28
Filing date: 2006-09-15
Publication date: 2008-10-08
Anticipated expiration: 2026-09-15
Also published as: CN1928171A

Abstract

The invention provides a zein fibre, which is provided with good spinning and predominant taking performance, and the producing method. Purifying zein, which is extracted from the stock that is the residue fluid after extracting corn starch, is melt in sig water. It is mixed with various activating agents such as glyoxal. Under the effect of certain temperature, density, pressure and given various activating agent, original fluid with certain density is make up, Zein fibre is slubbed by the technology of wet method and deaeration spinning is completed. Zein fibre is provided with comfortable hand feeling, good gloss, thin single titer which can be slubbed to 0.7dtex, light of specific weight and so on. It can be knitted as high-grade cloth material which is various untra-thin or thickening.

Description

A kind of corn fibre and production method thereof

Technical field

The invention belongs to textile material, relate in particular to corn fibre, also relate to the manufacture method of this fiber simultaneously.

Background technology

Zein fiber also is the Vicara fiber the earliest, is the masterpiece of corn fibre.It is to utilize the corn residue, and the isopropyl alcohol with 70% extracts a kind of yellow powder, generally is referred to as the molten protein (Zein) of corn alcohol, and the globular preteins molecule becomes the carboxylic acid sodium base therebetween, forms the salt link, is spun into the Vicara fiber with wet spinning process again.The cross section of Vicara fiber is rounded, and vertical section then is translucent cylindric.Also having a kind of zein fiber is to become PLA with ring-opening polymerization behind the lactic acid cyclization, respin into fiber, the problem that zein fiber production at present exists: the corn PLA is an optical isomeric compound, hard and crisp is one of main character, it wears no resistance, fusing point low (about 175 ℃).Production cost is higher, and the remaining influence that monomer produced in the manufacturing process delays to send out manufacturing process.

Summary of the invention

Purpose of the present invention just provides cheap cost, better spinnability and superior taking, corn fibre.

The technical scheme that the present invention proposes to address the above problem is: use the corn protein producd fibers, with the slag liquid that extracted cornstarch as raw material, utilize chemistry, biochemical new and high technology, zein in the slag liquid is extracted purifying, isolated protein makes it to be dissolved in the diluted alkaline after cleaning, drying.Corn protein accounts for the 10-60% of total amount, adds multiple actives and polyvinyl alcohol blending copolymerization such as acetamide.Under the effect of certain temperature, concentration, pressure and a certain amount of multiple actives, be mixed with certain density spinning solution, make the spinning liquid of blend copolymerization.Use the wet processing spinning, spin corn fibre, carry out vacuum defoamation, then the spray silk.

The amide nitrogen content of corn fibre is higher, thereby with after the acetalation processing, the stability of fiber better.Contain arginine less and do not contain amion acetic acid owing to it again.Therefore, its swelling capacity in water or in the sig water is less.On the corresponding macromolecular chain the side chain that stagnates with benzene also less.When stretching, post processing processing spun filament is orientated easily.The stability of typing, the fracture strength of its fiber is relative with elasticity better.

Description of drawings

Fig. 1 is the process chart of patent of the present invention

The specific embodiment

As raw material, the isopropyl alcohol of 50-70% is that extract extracts purifying to zein in the slag liquid with the slag liquid that extracted cornstarch, and isolated protein makes it to be dissolved in the diluted alkaline after cleaning, drying.Multiple actives such as corn protein accounts for the 10-60% of total amount, the adding acetamide and polyvinyl alcohol are added to the reactor blend.55 ℃-105 ℃ of heating, react to stir in 100 minutes and is mixed with the spinning solution that 10-40% can spin substrate concentration, spin corn fibre with wet processing, carry out again drawing-off, crosslinked, cut off, pack.

The activating agent total content accounts for the 1.7-2.3% of fibre weight, percentage preparation by weight, wherein: dibenzoyl peroxide 0.6-0.8%, bio-ethanol 0.2-0.8%, acetamide 0.1-0.3%, sodium tetraborate 0.3-0.5%, sodium perborate 0.2-0.4%, hydroxylamine hydrochloride 0.1-0.3%.According to different situations, can use two or more REACTIVE DYES.

Corn fibre has the feel as the cashmere, and is soft, smooth, again gloss as the silk arranged.The single fiber degree is thin, can spin the 0.7dtex fine fibre.Light specific gravity, strength and elongation height, acid-fast alkali-proof performance are good.Have and good lead moist and wet putting.Rejoice and drapability are better than silk.Anti-boiling water shrinks and dry heat resistance.Can be knitting, tatting becomes the high-grade fabric of various ultra-thin or thickenings.

Claims

1. corn fibre, it is characterized in that, this corn fibre also contains polyvinyl alcohol and bioactive agent composition, active agent content accounts for the 1.7-2.3% of fibre weight, corn protein accounts for the 10-60% of total amount, and the activating agent of use is formulated as by weight percentage: dibenzoyl peroxide 0.6-0.8%, bio-ethanol 0.2-0.8%, acetamide 0.1-0.3%, sodium tetraborate 0.3-0.5%, sodium perborate 0.2-0.4%, hydroxylamine hydrochloride 0.1-0.3%.

2. the preparation method of corn fibre according to claim 1 is characterized in that, step is:

(1) gathers the slag liquid that extracted cornstarch;

(2) corn protein extracts purifying in the slag liquid;

(3) soak polyvinyl alcohol;

(4) polyvinyl alcohol, activating agent after corn protein and the immersion are added to reactor; Heat 55 ℃-105 ℃, reacted 100 minutes;

(5) spinning;

(6) crosslinked;

(7) curl;

(8) cut off;

(9) packing.