CN1536119A - Dyeing and finishing process for modail/polyester fibre blended fabric - Google Patents

Abstract

The present invention relates to a dyeing and finishing process of model fibre and polyester fibre blended fabric, and its technological process includes the following steps: singeing, desizing, bleaching, NaOH causticizing treatment, setting, dyeing or printing and after-finishing, and the formula of treatment liquor for making causticizing treatment includes NaOH 40-50 g/L and penetrating agent 1-2 g/L, and the condition of NaOH causticizing treatment is as follows: padding causticizing treatment liquor at normal temperature, depositing for 30-40 min at normal temperature, fully washing with hot water with 80-90 deg.C to neutrality and drying. On the premise of no damaging fibre, as compared with the fabric which is not undergone the process of causticizing treatment the colour yield of said invented fabric can be raised by 20%-50%.

Description

The dyeing and finishing technology of model/polyester blended fabric

Technical field

The present invention relates to the fabric dyeing and finishing process in the textile printing and dyeing production, specifically be meant the dyeing and finishing technology of model/polyester blended fabric.

Background technology

Modal fibre is a regenerated celulose fibre high-strength, high wet modulus, can or interweave with other fiber blends, produces knitting or woven fabric, is used for clothes, towel socks, bedding etc.The requirement of Modal fibre fabric finishing processing special-less process, strong to apparatus adaptability, dyeability is good, Dry Sack rate height, bright in color is bright-coloured, the smooth softness of product feel, outward appearance is flat very dangles.

In the prior art, the dyeing and finishing process flow process that the dyeing and finishing technology of model/polyester blended fabric adopts is: singe → destarch → bleaching → setting → dyeing or stamp → back arrangement.But adopting under the above-mentioned process conditions, the suction look ability of Modal fibre can't fully be improved.

Summary of the invention

The problem to be solved in the present invention is for effectively improving the dye uptake of Modal fibre, the model/polyester blended fabric after the bleaching is carried out causticization with NaOH handle, simultaneously the NaOH concentration of treatment fluid being controlled, to prevent that fiber is injured in the processing procedure.

For addressing the above problem, the present invention increases NaOH causticization treatment process on the basis of the dyeing and finishing process flow process that prior art adopted, and formed process flow is: singe → destarch → bleaching → NaOH causticization processing → setting → dyeing or stamp → back arrangement.Except NaOH causticization treatment process, the process conditions of other each procedure technology conditions and each operation of prior art remain unchanged in the described flow process.

The feature that the NaOH causticization is handled comprises works out treatment fluid prescription and treatment process condition two parts:

A. treatment fluid prescription (g/L):

NaOH 40～50

Bleeding agent 1～2

Described bleeding agent can be: JFC

B. treatment process condition:

Pad 30～40min → 80～90 ℃ abundant hot water wash of banking up under causticization treatment fluid → normal temperature condition under the normal temperature to neutrality → oven dry.

Advantage of the present invention is that under the condition of not damaging fiber, the tinctorial yield that causticization is handled after the textile dyeing can be than not causticization processing fabric improve 20%～50%.

The specific embodiment

1. fabric sample:

70/30 model/polyester blended fabric.Longitude and latitude yarn count 45 * 45 English prop up, through 133 * 72 pieces/inch of filling densities, and fabric base 47 inches.

2. the operation of singing is two positive two anti-, and machine speed 110～130m/min, cropping require cloth cover fineness more than 3.5 grades.

3. destarch

Prescription (g/L)

7658 amylase 2～4

NaCl 5

Technology is: 65～70 ℃ of hot water pads → 55～60 ℃ pad enzyme liquid → 45～50 4 hours → abundant hot water wash of ℃ banking up.

4. bleaching

Bleaching liquid prescription (g/L)

Hydrogen peroxide 4～8

OL 4～6

Stabilizing agent 4

Waterglass is regulated pH to 10.5

Bleaching process: pad decatize 45～60min under the bleaching liquid → 95+2 ℃ of condition → fully washing → oven dry.

5.NaOH causticization is handled

Treatment fluid prescription (g/L)

NaOH 45

Penetrating agent JFC 1.5

Treatment conditions:

Pad the 35min → 85 ℃ hot water wash 5 grooves → 100 ℃ of oven dry of banking up under the NaOH causticization treatment fluid → 35 ℃ under the normal temperature.

6. setting

Technology is: 190～195 ℃ formalized 20 seconds down.Require the control cropping door width of cloth according to dyeing and finished product.

7. dyeing

Prescription (g/L) prescription 1 prescription 2

Red K2BP 10

Blue MGB 10

Urea 30 30

Willow ground brother 10 10

Sodium bicarbonate 10 15

Water adds to 1,000 1000

Technology: one soaks ℃ preliminary drying 2min → 170, a padding liquor → 100 ℃ bakes 2min → open washing → oven dry.

8. back arrangement (soft finish)

Prescription (g/L)

Softener TR-11 15

Softener 708B 15

Technology: soft treatment liquid one soaks and one rolls → and ℃ oven dry 1.5min → 150, preliminary drying → 100 ℃ baked 20 seconds.

9. the finished product fabric physical index test result after the present invention handles is as follows.

Table 1 finished product fabric COLOR FASTNESS

The project variable color of soaping is soaped and whitely is stained with flatiron and is stained with in vain that unlubricated friction is wet to rub

Level 44 4～5 43

Table 2 finished product is through broadwise washing shrinkage and powerful index

Project warp-wise broadwise

Washing shrinkage, %-2.2-1.1

Brute force, N 680 372

Claims (3)

1. the dyeing and finishing technology of model/polyester blended fabric is characterized in that its technological process is: singe → destarch → bleaching → NaOH causticization processing → setting → dyeing or stamp → back arrangement.

2. the dyeing and finishing technology of model/polyester blended fabric as claimed in claim 1 is characterized in that the prescription for the treatment of liquid that described NaOH causticization is handled is:

NaOH 40～50g/L

Bleeding agent 1～2g/L

3. the dyeing and finishing technology of model/polyester blended fabric as claimed in claim 1 or 2 is characterized in that the condition that described NaOH causticization is handled is:

Pad 30～40min → 80～90 ℃ abundant hot water wash of banking up under causticization treatment fluid → normal temperature condition under the normal temperature to neutrality → oven dry.