CN104746347A - Blanching, scouring and bleaching one-bath refining treatment fluid for wool fabric and treating method - Google Patents

Abstract

The invention relates to the field of treatment of natural wool fabrics, especially to a pre-treatment process for natural wool fabrics, specifically to a blanching, scouring and bleaching one-bath refining treatment fluid for natural wool fabrics and a treating method. The treating method comprises the following procedures: preparation of water; heating to 40 to 60 DEG C and addition of a to-be-treated sample; addition of a water softener and an auxiliary agent 398; addition of H2O2 in 10 to 20 min; addition of soda ash to adjust a pH value to 8 to 9; addition of a dye in 5 to 10 min; and dyeing. wherein the dyeing auxiliary agent is a scouring and dyeing one-bath agent, the addition amount of the dyeing auxiliary agent is 1 to 2%, the dye is a reactive dye or disperse dyestuff when the to-be-treated sample is T/C, C/T, CVC and T/R cloth or yarn, and the dye is a reactive dye when the to-be-treated sample is rayon, natural silk and bamboo fiber cloth or yarn. The treating method provided by the invention has the advantages of shortened process time, good production stability, improved production efficiency, substantially reduced comprehensive production cost and capacity of improving fabric quality and the one-time success rate of colors.

Description

A kind of wool fabric bleaching boils drift with bath micronization processes liquid and processing method

Technical field

The present invention relates to natural wool fabric process field, particularly relate to a kind of natural woollen cloth pre-treatment process, be specially the bleaching of a kind of natural wool wool fabric and boil drift with bath micronization processes liquid and processing method.

 

Background technology

Wool is a kind of important textile raw material, and characteristics such as having good springiness, hygroscopicity is strong, warmth retention property good, not easily stain, gloss is soft, its fabric also has unique style and using function.Especially the frivolous worsted fabric of top grade that super-fine wool (diameter 18 ~ 21 μm) and super super-fine wool (diameter 15 ~ 8 μm) are processed into is the main product of current high-grade wool textile.But this animal fiber can only rely on nature to provide at present, due to natural conditions restriction, valency is high less for ramuscule and ultra-fine wool yield, far can not meet actual needs.Therefore, in the world large quantity research has been carried out to slenderized wool technology.

Slenderized wool technology has two kinds of methods: one is mechanical stretching method; One is decrement method.Decrement method comprises again chemical decrement and biochemistry decrement two class methods.The essence of its wool weight-loss slenderized processing adopts conventional chemical or biochemical method exactly, destroy the disulfide bond (-S-S-) structure of angle protein in wool fibre, by wool superficial degradation, to improve Surface Machining performance and the wearability of wool, comprise felting property, feel, gloss ANTIPILLING and dyeing etc.Because fiber surface is degraded, wool fibre objectively will be made to attenuate.Under the prerequisite keeping enough brute forces, how to make wool obtain rational reduction rate, the modified effect making wool product obtain needs is the key of weight-loss slenderized process.

Summary of the invention

Protease decrement treatment is a kind of conventional wool by bio superalloy processing method.But in the ordinary course of things, wool needs after preliminary treatment or pre-treatment, it is active that protease could have larger decrement to wool, otherwise the decrement of proteases on wool is very little.In other words, simple use Protease Treatment wool, is not enough to obtain obvious thinning effect.The preliminary treatment of Protease Treatment wool typically refers to and processes wool with oxidant or reductant.Conventional oxidant has: oxygen water, oxidizer containing chlorine, permonosulphuric acid and peracetic acid etc., wherein because the good ecotype of hydrogen peroxide process receives the concern of people especially.The reductant being usually used in wool reduction treatment has sodium sulfite, sodium pyrosulfite, sodium hydrogensulfite, sodium dithionite etc.Oxidation pre-treatment can open being cross-linked in wool protein, thus makes protein molecular more yielding, and to being conducive to enzymatic location orientation, promotes the increase of enzyme decrement.

According to existing theory, the Main Patterns of wool decrement is divided into two kinds, and one is hydrolysis pattern; One is separation mode.Separation mode is a kind of Main Patterns that protein is hydrolyzed wool.In this mode, the part that chemistry decrement is just wherein very little, physics decrement is main, taking the form of in treatment fluid containing the cell come off from wool in a large number of it, its reason is the epicuticula that protease is difficult to be hydrolyzed wool, and the hydrolysis of globular preteins in wool cytoplasm CMC is relatively easily carried out, therefore cause coming off of whole cell when decrement treatment.Because cytoplasm CMC receives destruction in this pattern, the mechanical impact therefore for wool fibre is very big, macroscopically shows as powerful reduction obviously.Hydrolysis pattern requires that protease can with speed hydrolysis faster for epicuticula albumen, and from current result of study, Activities of Some Plants protease exists the decrement potentiality of hydrolysis pattern.But this mode needs oxidation pre-treatment equally, to remove the Long carbon chain lipoid of wool surfaces, make protease can directly act on epicuticula albumen.

Traditional decrement method is the chlorination Subtraction method technique of wool top, mainly utilizes the effect of oxidant (NaClO, Cl2, DCCA etc.) oxidation chlorination to carry out oxydrolysis reaction to the-S-S-key in wool scale skin; This simultaneously, main chain-peptide chain is oxidized fracture also, and main chain break and crosslinked destruction make wool scale outer layer of protein be decomposed into polypeptide and even acid hydrolysis, thus by scale layer major part or all degrade removal.Chlorination Subtraction method technique combines with degree of depth soft treatment, can reach reduction wool fineness, obtains the object of high glaze wool fibre.The whole flow process of wool top chlorination Subtraction method technique (mercerization) is:

Wool top → chlorination process → dechlorination → neutralization → cleaning → acid treatment → soft finish → drying → balling-up → twice

The advantage of traditional chlorinated wool processing method is that cost is low, the fabric anti-felting produced is effective, gloss is soft bright, there is silk quality sense, and due to the removal of scale, the prodding and itching feeling wearing next to the skin Woolens can be reduced or eliminated, exploitation autumn in summer fashionable dress is had to the meaning of particular importance.But the method has deadly defect: (1) needs pretreating process, by chlorination preliminary treatment, the scale layer destroying wool surface and interfibrous interaction, (2) the follow-up dyeing and finishing processing that very easily sustains damage of the follow-up textile process of wool is made to need K cryogenic treatment, price costly, and easily make in fabric yellowing and feel coarse (3) RESIN FINISH in processing procedure and subsequently, the harmful substances such as the organic chloride (AOX) that can adsorb can be produced, have irreversible infringement to environment and human body; 4) starting point of processing method is the mercerization of wool, but not for weight-loss slenderized wool, wool fineness change is not obvious.

Protease adds process for chemically pretreating and corrodes due to surface and inside simultaneously, can reach wool is shunk attenuate, fabrics feel soft, gloss softly become clear, machine washable and free from environmental pollution.But the wool fibre average diameter of this method processing reduces few, can only reduce 1.5 μm at the most, and owing to still needing first to carry out pretreating process, there are the problems that traditional chlorinated wool processing method exists equally.Protease adds process for chemically pretreating does not also have ripe industrial applications at present.

Existing wool weight-loss slenderized treatment technology (such as, Wang Shugen. enzymatic Treatment of wool (J). printing and dyeing assistant, 1996,13 (3), 5-8; Good fortune is female. wool mercerising refinement technology (J) Shanghai Textile science and technology, 2002,30 (2): 12-14) shortcoming or deficiency be:

1. complex process, long flow path, has pollution.The method of current protease weight-loss slenderized wool mainly contains two step method and three-step approach.No matter that method all needs preliminary treatment or pre-treatment process, complex process, long flow path, chlorination process has pollution.

2. treatment effect is undesirable, can not solve the contradiction between refinement and powerful maintenance.Process with proteases on wool, the scale of fiber surface can be divested, thus subtract fibrillose diameter (fibre fineness can reduce about 2 μm),

Improve the fineness of wool, but after Modification by Protease process, the damage of wool is relatively more serious, is unfavorable for follow-up textile process, also larger on the Practical Performance impact of final wool product.Therefore this decrement treatment neither a kind of desirable slenderized wool method.

Claims (7)

1. a wool fabric bleaching boils drift with bath micronization processes liquid and processing method, it is characterized in that this treatment fluid is 100 consist of to process wool weight: white enzyme 0.1-10%, activator 0.1-10%, water softener 0.1-10%, the pH value of micronization processes liquid is 4-10; The activator stated is urea, thiourea dioxide, glycerine, dithiothreitol (DTT), three carboxyethyl phosphines, β-mercaptoethanol, carboxymethyl phosphoric acid, peregal-10, ABS, three propionitrile base phosphorus, a kind of water softener stated in three normal-butyl phosphorus and three (2-carboxy ethyl phosphine) hydrochloride are sodium phosphate trimer or calgon.

2. a wool fabric bleaching boils drift with bath micronization processes liquid and processing method, this processing method uses the slenderized wool treatment fluid described in claim 1, and adopts one-bath one-step dyeing treatment process: processing technological flow is: scoured wool → wetting immersion → micronization processes → washing → soft treatment → oven dry → finning wool fibers; Described wetting soaking technology condition is: wetting agent consumption is the 0.1-10% of process wool weight, soaking temperature 10-90 DEG C, soak time 0.1-2 hour, and described wetting agent is anion surfactant or non-ionic surface active agent; Stating micronization processes process conditions is: change treatment fluid and the bath raio 1:100 processing wool, by pH conditioning agent modulation micronization processes liquid pH value to 4-10, described pH conditioning agent is at least one in acetic acid, sodium acetate, sodium dihydrogen phosphate or sodium hydrogen phosphate, micronization processes temperature is 10-100 DEG C, and the micronization processes time is 10-200 minute; State washing, soft treatment and stoving process and be same as prior art.

3. boil drift with bath micronization processes liquid and processing method according to the wool fabric bleaching described in claim 2, it is characterized in that described wetting agent is penetrating agent JFC or wetting agent EA.

4. boil drift with bath micronization processes liquid and processing method according to the wool fabric bleaching described in claim 2, when it is characterized in that described pH value conditioning agent two kinds uses together, adopt the combination of sodium dihydrogen phosphate and sodium hydrogen phosphate, or the combination of acetic acid and sodium acetate.

5. boil drift with bath micronization processes liquid and processing method according to the wool fabric bleaching described in claim 1, it is characterized in that, describedly add in the step of brightening agent and water softener, in the body lotion of the above-mentioned H2O2 of adding, add the water softener of brightening agent and 1g/L, and material 15 minutes.

6. boil drift with bath micronization processes liquid and processing method according to the wool fabric bleaching described in claim 1, it is characterized in that, in described incubation step, the above-mentioned body lotion adding brightening agent and water softener is warming up to 98 DEG C by the programming rate of 1.5 DEG C/min, and described body lotion is incubated 60 minutes.

7. boil drift with bath micronization processes liquid and processing method according to the wool fabric bleaching described in claim 1, it is characterized in that, in described drain step, the body lotion after above-mentioned insulation is cooled to 80 DEG C, finally discharges described body lotion, complete whole operation.