CN1993515A

CN1993515A - A method for dyeing microfibers and fabric woven with microfibers dyed thereby

Info

Publication number: CN1993515A
Application number: CNA2005800262319A
Authority: CN
Inventors: 崔诚训
Original assignee: Individual
Current assignee: Individual
Priority date: 2004-08-04
Filing date: 2005-08-03
Publication date: 2007-07-04
Anticipated expiration: 2025-08-03
Also published as: KR100581052B1; CN100558978C

Abstract

The invention relates to a method for dyeing split-type microfibers made of a composite of polyester and polyamide by a yarn dyeing process. The method comprises: a weight reduction step comprising winding the microfibers on a yarn dyeing machine and adding an alkali agent at a uniform temperature of 100-130 DEG C for 30-60 minutes to make a reduction of 6-15% in the weight of the microfibers; a water-washing step comprising injecting iron-free water at 70-80 DEG C onto the microfibers through a nozzle, applying water pressure to remove foreign materials while scouring the microfibers by the addition of a scouring agent, and treating the microfibers with acid to a pH of 4-5; a dyeing step of dyeing the microfibers under pressure by the addition of a dye together with a dispersant, a leveling agent, an antistatic agent and a softening agent; and water-washing and drying the dyed microfibers.

Description

A kind of colouring method of microfiber and the fabric that uses this dyed microfibers to weave

Technical field

The present invention relates to a kind of colouring method of microfiber, particularly relate to yarn dyeing (yarndying) method of a kind of split-type microfibers of making by the composite of polyester and polyamide (split-type microfibers).

Background technology

Microfiber is meant that than in case thinner fiber, this fiber has three-dimensional structure, and be included in split from the time the countless microvoids that form between, thereby have excellent water imbibition, washing performance, sense of touch and insulating properties.The rag of being made by microfiber, carpet, towel, bed gown etc. are owing to excellent washing performance, quick-drying, excellent antibiotic and durability etc. are enjoyed a very good reputation.Yet, for the situation of fabrics such as the knitwear that has more effective value by the use microfiber, fashion socks, the product of microfiber does not also appear using.This is because microfiber is difficult to dyeing.

Colouring method can be divided into the yarn dyeing method of carrying out before piece dyeing method (piece dying method) and the weaving.Generally microfiber was dyeed in the past by the piece dyeing method.Yet, by the piece dyeing method problem that dyeing exists to microfiber be, because having very strong migration (migration) character, microfiber can not dye multiple color, therefore only can make a kind of tatting or knit goods of color.If after the high temperature lightweight, the socks that are made into by microfiber and elastomer are dyeed, thereby then exist the elastomer fusion to cause products obtained therefrom can not be used as the problem of socks.Therefore, make and to have versicolor microfiber tatting or knitting fabric or should be undertaken by piece dyeing coloration of textile materials with various materials and design.

Yet what attempt in the prior art only is the yarn dyeing that carries out microfiber by the method for carrying out lightweight and dyeing simultaneously, thereby does not obtain good effect, and does not obtain practical application.This is because make the splitting from difficulty of microfiber lightweight and dyeing the time, and makes the impurity that produces in weight reduction process hinder dyestuff to enter in the fiber, causes absorbing and the dye fastness reduction.

These problems that take place in the microfiber yarn dyeing course can solve by the method that adopts the lightweight poststaining.Because be difficult to grasp suitable processing conditions in preceding suitable method for washing of lightweight poststaining or the dyeing course, thereby the method for not attempting the lightweight poststaining in the prior art.

Summary of the invention

Produced the present invention in order to solve the above-mentioned problems in the prior art.The colouring method that the purpose of this invention is to provide the microfiber after a kind of lightweight, this method can make the microfiber behind the yarn dyeing obtain high absorption rate (absorbance rate) and dye fastness, and use the material of the microfiber of yarn dyeing as tatting or knit goods, to make the various products that are made into and have the microfiber advantage by versicolor yarn.

To achieve these goals, the invention provides a kind of colouring method of the split-type microfibers of making by the composite of polyester and polyamide, this method comprises: (1) weight reduction step, this step is included in and twines microfiber on the yarn dyeing machine, and under 100-130 ℃ uniform temperature, alkaline reagent is added in the microfiber of above-mentioned winding, kept 30-60 minute, so that the weight saving 6-15% of microfiber; (2) water-washing step, this step comprises that the no molten iron (iron-free water) with 70-80 ℃ is sprayed onto on the above-mentioned light-weighted microfiber by nozzle, applies hydraulic pressure to microfiber, to remove exogenous impurity, add remover simultaneously and clean microfiber, and be 4-5 with acid treatment microfiber to pH value; (3) staining procedure dyes to microfiber under pressure by adding dyestuff, dispersant, levelling agent, antistatic additive and softening agent together; And (4) washing and dry above-mentioned dyed microfibers.

In the method for the invention, staining procedure can by with after the polyester dyeing again the two-step method of dyed polyamide carry out.Optionally, staining procedure also can be by carrying out the one-step method of polyester and polyamide dyeing simultaneously.

In staining procedure, preferably antiseptic and dyestuff are added together.

Can be with comprising, to make fancy yarn for example slub yarn (slub yarn), nep yarn, loop type yarn (loop yarn), rope hair yarn and feather yarn with the yarn of said method dyed microfibers or the microfiber processing before the dyeing.

According to the colouring method of microfiber of the present invention, may obtain because lightweight and soft-touch and dying has the split-type microfibers of being made by polyester and polyamide of required color.

Description of drawings

Fig. 1 shows with the split-type microfibers of being made by the polyester-polyamide composite of the inventive method dyeing to amplify several thousand times schematic diagram.

The specific embodiment

As shown in Figure 1, with the split-type microfibers (hereinafter referred to as " microfiber ") of the inventive method dyed microfibers for making by the composite of polyester 1 and nylon 2.This microfiber is made up of 70% polyester and 30% polyamide, and this ratio can have with different yarn manufacturers a little and changes.

Each step of the lightweight of microfiber, washing and dyeing is carried out under microfiber is wound onto state on the yarn package dyeing machine.Before the winding, microfiber yarn is twisted thread be processed into 100-1000tpm (every meter twisting count).The processing of twisting thread can improve the service life of woven fabric, and helps the dyeing in the experimentation.Do not twist thread and can dye yet, but can leave the white point that much is not colored in the yarn in this case, make operating difficulties.

Weight reduction step was carried out under 100-130 ℃ 30-60 minute.Alkaline lightweight represented in term used herein " lightweight ", generally is to carry out for the sense of touch that improves mylar.NaOH (NaOH) is used as reagent.By lightweight, the polyester hydrolysis produces insoluble accessory substance, i.e. disodium terephthalate (hereinafter referred to as " DST ") and ethylene glycol, and polyamide splits from the space that forms between them.

Weight reduction rate and naoh concentration and treatment temperature are proportional.Therefore particularly treatment temperature has a significant impact weight reduction rate, must remain under 100-130 ℃ the uniform temperature.Weight reduction rate is preferably 6-15%.If weight reduction rate is higher than 15%,, cause the napping phenomenon owing to fine hair (fluff) then can occur, also depilation (plucking) can occur with other fabric friction.If lightweight is lower than 6%, then water imbibition and quick-drying variation.Therefore, in weight reduction process, must carry out necessary inspection to weight reduction rate.

After weight reduction process, carry out water-washing process, to remove hydrolysising by-product.Wash by nozzle spray clear water.Must spray by nozzle ejection, only when high-pressure injection water, just can remove because be arranged in the accessory substance of yarn.In water-washing process, should avoid quick cooling, and should use 70-80 ℃ hot water.The water that uses in the water-washing process must have the calcium (Ca) and the magnesium (Mg) of low content, and does not have iron.This is because the existence of iron ion can produce dyestain (dye staining) or color change.In water-washing process, need careful, can not drawing, and should solve by the insufficient problem that causes of washing by physical method.

In water-washing process, add remover to remove impurity.If desired, can use sodium tripolyphosphate to remove DST.Also using acid treatment alkali, for this reason, preferably use acid reagent (RC cleaning agent, HansolChemical Co., Ltd., Korea S's production) to handle alkali, is 4.5 to adjust yarn pH value.This is because when keeping the high pH value of yarn without acid treatment, can not dye well.If possible, preferably do not use cation reagent.This is because when cation reagent and anionic dispersing agents or levelling agent or other oligomer combined, they can form insoluble salt, thus the generation spot.

After finishing water-washing process, remove and anhydrate, dye as far as possible immediately.In dyeing course, use high-pressure dispersion dyes and need and pay close attention to.As for dyestuff, be used for the dyestuff of the composite of polyester or polyester and polyamide.The example of this dyestuff comprises dianix fla vaine xf, dianix red and cbn xf, and they are Dystar Co., the product of Ltd.Dyeing can be dyed the shades of colour from light color to the dark color.

Dyeing was carried out 30-60 minute under 100-130 ℃, high pressure, wherein, added dyestuff when definite temperature raises.When adding dyestuff, dispersant, levelling agent, fabric softening and antiseptic are added with dyestuff.In addition, will add with dyestuff removing the dichloroxylenol (chloroxylenol) that virus has excellent effect.

Can by one-step method or by with after the polyester dyeing again the two-step method of dyed polyamide dye.The shortcoming of one-step method is that the consumption of dyestuff is Duoed three times than two-step method, and the dyeing failure can take place.Yet,, therefore can consider one-step method because two-step method is consuming time and complicated.By adopting the dyestuff that is used for polyamide to finish two-step method then at 130 ℃ of following dyeing polyesters at 100 ℃ of following dyed polyamides with DISPERSE DYES.As for the dyestuff that is used for polyamide, can use DISPERSE DYES or ACID DYES.

After finishing dyeing course, wash the yarn after the dyeing with water, with polyester and the exogenous impurity of removing fusion, dry then.Dyeing and dried yarn are used for tatting or weave required fabric.

Optionally, finish dyeing course after, the fancy yarn that can use dyed microfibers to make up partly or entirely to have design effect.Above-mentioned dyed microfibers can be used separately or use to make fancy yarn with other yarn combination.Optionally, after the microfiber before will dyeing is used to make fancy yarn, the gained fancy yarn can be dyeed.The example of fancy yarn is as follows.

The rope hair yarn is a kind of yarn that is used to decorate the embroidery edge, and as weft yarn, to make chenille.The interval of rope hair yarn with several warp thread is provided with, and uses the yarn tatting of shuttling back and forth as weft yarn.Will be by the material of tatting along warp-wise cutting and twist thread, thereby obtain thick fluffy yarn.

Slub yarn is a kind ofly to use non-twisted yarn to make continuous soft knot (knot) and the yarn that obtains on the yarn of not twisting with the fingers.The uneven thickness one of slub yarn has knot on a plurality of points.

Nep yarn is the single thread with floss of irregular setting on a plurality of points, and comprises the junction type profile intermittently outstanding from its surface.

Loop type yarn is also referred to as " looped pile fancy yarn (boucle yarn) ", is the fancy twist yarn that has looped pile on a plurality of points, is usually used in knit garment or woolen fabric.

The feather yarn is made by braiding warp thread and weft yarn with all size with pin, making cloth, and cuts off cloth with knife.

Because the preparation method of above-mentioned fancy yarn has been conventionally known to one of skill in the art, therefore do not repeat them here.

Embodiment

Twisted with the fingers into 250tpm by the split-type microfibers that 70% polyester and the composite of 30% polyamide are made.Yarn after twisting thread is wound in the yarn of winding on yarn package dyeing machine, adds NaOH down and kept 30 minutes, with yarn weight saving 7% at 130 ℃.By the spray equipment that has nozzle injector iron-free (Fe) water is ejected on the light-weighted yarn, to remove exogenous impurity.Remove the puddle of polyester by applying hydraulic pressure.Clean this yarn by adding NaOH then, and handle, adjust the pH value to 4.5 of yarn with acid (RC cleaning agent, Hansol Chemical Co., the product of Ltd).Add black dyes (dianix black then, Dystar Co., the Ltd product), dispersant DC-505 (Korea S Shin Kwang Oil Chemical Co., Ltd production), antistatic additive Anol-25B (Korea S Shin Kwang Oil Chemical Co., Ltd produces) and softening agent 3M (Korea S ShinKwang Oil Chemical Co., Ltd production) under 130 ℃ to yarn dyeing 30 minutes.Take out yarn after the dyeing, drying and twine from dyeing machine afterwards at the bobbin of dyeing machine.Yarn after will dyeing subsequently is with elastomer tatting on footwear machine, to make socks.Measure washability, the index of aridity and the absorption rate of gained socks.For relatively, also measure washability, the index of aridity and the absorption rate of conventional black quilted stockings.The result of washability is as shown in table 1, and the result of rate of drying is as shown in table 2, and the result of absorption rate is as shown in table 3.

Measure above-mentioned example component utilized and consumption thereof by conventional method well known in the art.

Table 1: according to the color fastness of KS K 0430-2001, A-1 test under 40 ± 2 ℃; Unit: level

			The microfiber socks	Quilted stockings
			The microfiber socks	Quilted stockings	Washability	Change color		4-5	4-5
The look stain	Cotton	-	4-5			Change color		4-5	4-5
	Cotton	-	4-5	Nylon		4	4-5
	Woollen	4-5	-	Nylon		4	4-5

Table 2: according to the index of aridity of KS K 0815-2001 6.28.1B " evaporation free water amount (Free water evaporation capacity) " test; Unit: restrain/202.5 square centimeters

	The microfiber socks	Quilted stockings
	The microfiber socks	Quilted stockings	The index of aridity	27.49	18.29

Table 3: according to the absorption rate of KS K 0815-2001 6.27.1B test; The unit millimeter

		The microfiber socks	Quilted stockings
		The microfiber socks	Quilted stockings	Absorption rate	Walk yarn direction (wale direction)	8	0
Knit a layer direction (course direction)	7	0			Walk yarn direction (wale direction)	8	0

Industrial applicibility

As mentioned above, according to the colouring method of microfibre of the present invention, can obtain because lightweight and soft-touch and the split-type microfibers that makes with the composite by polyester and polyamide of required color dyeing. Use the microfibre that dyes to make and have versicolor woven fabric. Fabric by dyeing microfibre tatting or braiding is high-grade products, and shades of colour and function can be provided, and therefore allows to make various products, and produces the added value that improves.

Claims

1, a kind of colouring method of the split-type microfibers that makes by the composite of polyester and polyamide, this method comprises:

(1) weight reduction step, this step are included in twines described microfiber on the yarn dyeing machine, and under 100-130 ℃ uniform temperature alkaline reagent is added in the microfiber of above-mentioned winding, keeps 30-60 minute, so that the weight saving 6-15% of described microfiber;

(2) water-washing step, this step comprises that the no molten iron with 70-80 ℃ is sprayed onto in the above-mentioned light-weighted microfiber by nozzle, applies hydraulic pressure to this microfiber, to remove exogenous impurity, simultaneously by clean this microfiber of interpolation remover, and with this microfiber of acid treatment to pH value is 4-5;

(3) staining procedure dyes to above-mentioned microfiber under pressure by adding dyestuff, dispersant, levelling agent, antistatic additive and softening agent together; And

(4) washing and dry above-mentioned dyed microfibers.

2, method according to claim 1, wherein, described staining procedure by with after the polyester dyeing again the two-step method of dyed polyamide carry out.

3, method according to claim 1, wherein, described staining procedure is by carrying out the one-step method of polyester and polyamide dyeing simultaneously.

4, method according to claim 1 wherein, in described staining procedure, adds antiseptic with dyestuff.

5, a kind ofly comprise the fancy yarn that the yarn of the described method dyed microfibers of claim 1 makes by processing.

6, fancy yarn according to claim 5, described fancy yarn are to be selected from a kind of in the group of being made up of slub yarn, nep yarn, loop type yarn, rope hair yarn and feather yarn.

7, method according to claim 1, this method also is included in before the described weight reduction step, processes described microfiber to make the step of fancy yarn.

8, method according to claim 7, wherein, described fancy yarn is to be selected from a kind of in the group of being made up of slub yarn, nep yarn, loop type yarn, rope hair yarn and feather yarn.

9, by passing through tatting of any described method dyed microfibers or knitting fabric among the claim 1-4.

10, by claim 5 or 7 described fancy yarn tatting or knitting fabrics.