CN103031751A - One-bath dyeing technology for spinning of plied hank yarn from wool and cashmere - Google Patents

Abstract

Aiming to realize one-bath dyeing of wool and cashmere, the invention provides a one-bath dyeing technology for spinning of a plied hank yarn from wool and cashmere so as to guarantee the color consistency of dyed wool and cashmere. According to the technology, the coloring time of cashmere is postponed, the content of anhydrous sodium sulphate is increased from 2.0% to 2.5%, the coloring temperature of cashmere is raised from 70DEG C to 80DEG C, and the dyeing time is prolonged from 20min to 45min. Before coloring, wool scales are opened by osmosis to realize synchronous coloring of wool and cashmere. Meanwhile, a reactive dye is selected to ensure color fastness. The invention has the advantages that: the realization of the one-bath dyeing technology can effectively guarantee the color consistency of wool and cashmere in dyeing, and the one-time finished product qualified rate reaches 98%; the consumption is reduced by 25000 yuan per ton compared with top dyeing; and at the same time, the cashmere content is guaranteed, a knitted panel can achieve the handfeel of cashmere, and the anti-pilling ability is better than that of pure cashmere fabrics.

Description

The One Bath Dyeing of wool and cashmere spinning plying reeled yarn

(1) technical field

The present invention relates to a kind of dyeing of field of textiles, particularly relate to the One Bath Dyeing of a kind of wool and cashmere spinning plying reeled yarn.

(2) background technology

At present, mix the spinning number that uses with cashmere and will reach 90s even higher quality count, and the fineness of wool and cashmere and discrete length are very large, the cashmere consumption of spinning before causing is larger, the technique that wants before to spin is carried out, and must carry out preliminary treatment to wool and cashmere.On the other hand, because wool is different from the flaky shape of cashmere, the scale of cashmere is closed and the scale of wool opens, and this just causes on cashmere and the wool color temperature and speed inconsistent, thus the colouring problems such as generation look liquid distilled from honeysuckle flowers or lotus leaves Bai Di.As everyone knows, superfine wool expensive, cashmere more is called as soft gold, avoids consuming in spinning and dyeing course as far as possible, and assurance cashmere content has important economic worth.

Compare, bar dyes to dye than strand and consumes greatly 7%, contains the descend cost gap at least 10,000 of 5%, one ton of yarn of suede, and is tens thousand of at most; Little color is many in batches for cashmere product in addition, for reducing cost, must explore new dyeing.

(3) summary of the invention

In order to overcome existing wool and the weak point of cashmere blended yarn on dyeing, the invention provides the One Bath Dyeing of a kind of wool and cashmere spinning plying reeled yarn.

The mixed comb of this process choice is walked the new technology route that strand is dyed, and then explores the successful methods of wool and cashmere co-bathing dyeing.

Technical scheme of the present invention is to realize like this.

The One Bath Dyeing of the wool of this programme and cashmere spinning plying reeled yarn, the technical essential of this technique is as follows:

(1), wash Wiring technology:

50 ℃ of one, two pond water temperatures, the first pond add bed material hair lotion 8kg, whenever wash one ton of line and add 1kg; The second pond adds bed material hair lotion 5kg, whenever washes one ton and adds 0.8kg; 45 ℃ of running water flushings of three, four pond water temperatures.

(2), dyeing: adopt REACTIVE DYES, dye bath ratio 1: 25.

Dyeing:

0～30 ℃ adds first auxiliary agent: sulfuric acid 2.0%, and acetic acid 1.0%, glauber salt 2.5%, levelling agent Neovadine AN0.3%, pH value are 3.0～3.5.

Add again dyestuff penetration 45min.

Every 1.5min rises 1 ℃ between 30～95 ℃, insulation 40min when rising to 95 ℃; Then 95～40 ℃ of cold water displacement coolings add 4% softener 3125, and insulation 15min adds 3% smooth agent F-303 again, insulation 20min; 40～0 ℃ of cold water displacement coolings discharge water, and take the dish out of the pot.

Usefulness of the present invention is: the realization of One Bath Dyeing, can effectively guarantee the colour consistency that wool and cashmere dye, and the disposable qualification rate that takes the dish out of the pot reaches 98%; Reduced consumption, bar dyes 2.5 ten thousand yuan of saving costs per ton on year-on-year basis; Guaranteed simultaneously the amount of cashmere, the feel of knitting sheet reaches the feel of cashmere, and the ANTIPILLING ability surpasses pure fleece fabrics.

(4) specific embodiment

Embodiment: spin the One Bath Dyeing of 20s/4 reeled yarn as example take wool and cashmere.

One, concrete technology content

(1) spins section's technique

Process route: mixed comb, combing, silver mixing, one grilling, two road grillings, three road grillings, rove, spun yarn, winder, plying, reeling.

1, fore-spinning:

2, spinning process:

Unit type: domestic Ma Zuoli FB505 type ring throstle,

Single thread number: 20Nm,

Block size spaces: 7.5mm,

Groove depth: 2.5mm,

Drafting multiple: 16.02,

The twist: 240T/m,

Front and back ratch: 195mm.

3, rear spinning process:

(1), winder: the ESPRO.M automatic winder of Italian Savio company,

(2), plying: domestic B643 type buncher.

The double twisting number of share of stock: 4,

The twist: 160T/m,

Sth. made by twisting is to S.

(3), shake line: self-control B778-5 type.

The skeining form: 1 * 1,

Frame is long: 180cm,

The number of turns: 700,

Ceeling Condition Weights: 250g.

(2) dye section's technique

1, washes line: select domestic N371 four grooves west line machine.

Wash Wiring technology: 50 ℃ of one, two pond water temperatures, the first pond add bed material hair lotion 8kg, whenever wash one ton of line and add 1kg; The second pond adds bed material hair lotion 5kg, whenever washes one ton and adds 0.8kg; 45 ℃ of running water flushings of three, four pond water temperatures.

2, dyeing: select HE---the 600 vertical pots that dye adopt REACTIVE DYES, dye bath ratio 1: 25.

Dyeing:

0～30 ℃ adds first auxiliary agent: sulfuric acid 2.0%, and acetic acid 1.0%, glauber salt 2.5%, levelling agent Neovadine AN0.3%, pH value are 3.0～3.5;

Add again dyestuff penetration 45min;

Every 1.5min rises 1 ℃ between 30～95 ℃, insulation 40min when rising to 95 ℃; Then 95～40 ℃ of cold water displacement coolings add 4% softener 3125 (Tianjin Dao Kang auxiliary reagent factory), and insulation 15min adds 3% smooth agent F-303 (Tianjin Dao Kang auxiliary reagent factory) again, insulation 20min; 40～0 ℃ of cold water displacement coolings discharge water, and take the dish out of the pot.

3, fishing line: select domestic Z751 drier, get rid of 4-5min, water content requirement is 20～25%.

4, baking line: select Japanese KMR-4 hanging frame type baking oven, 85 ± 5 ℃ of temperature, time 45min, two lines of every bar.

5, ball nodulizer GQ821.

6, packing shipment.

Conclusion: by the exploration to the co-bathing dyeing new technology, reached at present the colour consistency of dyeing from 2.0 tons the actual effect of going into operation, the disposable qualification rate that takes the dish out of the pot reaches 98%, bar dyes 2.5 ten thousand yuan of saving costs per ton on year-on-year basis, guaranteed simultaneously the amount of cashmere, the feel of knitting sheet reaches the feel of cashmere, and the ANTIPILLING ability surpasses pure fleece fabrics.Product obtains client's height approval.

Adopt the technological difficulties of technique of the present invention:

(1) spinning the technique of spun yarn before will guaranteeing in spinning process does well, must carry out pre-moisture regain more than 24 hours to wool tops and cashmere bar, in the hope of the tangible loss that spins before reducing, must guarantee that simultaneously rove strip chubbiness is tight, is laying the foundation smoothly of spinning process.

(2) want to realize the co-bathing dyeing of wool and cashmere, must idea manage to postpone the colouring time of cashmere, at first add levelling agent, bleeding agent and glauber salt.Emphasis has 2.0% to be increased to 2.5% the content of glauber salt, the increase of glauber salt makes the upper color temperature of cashmere postpone till 80 ℃ by 70 ℃, dyeing time extends to 45min by original 20min, solve and by osmosis the scale of wool is opened before painted, realize the synchronous colouring of wool and cashmere, select simultaneously REACTIVE DYES, to guarantee COLOR FASTNESS.By tens of experiments, formed ripe technique: the glauber salt of adding 2.5%, threading 45min required heat up 1 ℃ in per 1.5 minutes, until 95 ℃, insulation 40min; Change tradition and rose 1 ℃, threading 20min in per 1 minute; The disposable qualification rate that takes the dish out of the pot rises to 98%, economic benefits by 85%.

By bar dye change into the strand dye, the low consumed while falls, it is smooth that co-bathing dyeing has been strengthened the finished product feel, the characteristics of outward appearance chubbiness have reduced production cost, have obtained best economic benefit.

Claims (1)

1. the One Bath Dyeing of a wool and cashmere spinning plying reeled yarn, it is characterized in that: the technical essential of this technique is as follows:

(1), wash Wiring technology:

50 ℃ of one, two pond water temperatures, the first pond add bed material hair lotion 8kg, whenever wash one ton of line and add 1kg; The second pond adds bed material hair lotion 5kg, whenever washes one ton and adds 0.8kg; 45 ℃ of running water flushings of three, four pond water temperatures;

(2), dyeing: adopt REACTIVE DYES, dye bath ratio 1: 25;

Dyeing:

0～30 ℃ adds first auxiliary agent: sulfuric acid 2.0%, and acetic acid 1.0%, glauber salt 2.5%, levelling agent Neovadine AN0.3%, pH value are 3.0～3.5;

Add again dyestuff penetration 45min;

Every 1.5min rises 1 ℃ between 30～95 ℃, insulation 40min when rising to 95 ℃; Then 95～40 ℃ of cold water displacement coolings add 4% softener 3125, and insulation 15min adds 3% smooth agent F-303 again, insulation 20min; 40～0 ℃ of cold water displacement coolings discharge water, and take the dish out of the pot.