CN104762774A

CN104762774A - All-cotton dyed yarn dyeing and finishing technology

Info

Publication number: CN104762774A
Application number: CN201510200846.4A
Authority: CN
Inventors: 仝进峰
Original assignee: Nantong Biman Home Textiles Co ltd
Current assignee: Nantong Biman Home Textiles Co ltd
Priority date: 2015-04-27
Filing date: 2015-04-27
Publication date: 2015-07-08

Abstract

The invention discloses an all-cotton dyed yarn dyeing and finishing technology. The technology comprises the steps of cylinder loosening, yarn loading, preprocessing, cotton dyeing, postprocessing of cotton dyeing, dewatering, drying, testing and packing; the cotton dyeing technology comprises the steps that preprocessed yarn is immersed in dyestuff, dyeing temperature is controlled to range from 50 DEG C to 60 DEG C, dyeing is carried out for 20 min, then the temperature is increased to 80 DEG C to 90 DEG C, and the dyeing is carried out for 10 min; while the dyeing is conducted, a pressure of 0.6 KPa is exerted on dyeing liquid by a pump, and the dyeing liquid is forced to permeate from the inner layer of a cylinder to the outer layer of the cylinder, so that even dyeing is achieved. According to the all-cotton dyed yarn dyeing and finishing technology, when the yarn is dyed, a certain external pressure is added to a fuel bucket, the dyeing liquid is forced to permeate from the inner layer of the cylinder to the outer layer of the cylinder, so that the even dyeing is achieved.

Description

A kind of dyeing and finishing technology of cotton dyed yarn

Technical field

Patent of the present invention relates to a kind of dyeing and finishing technology, is specifically related to a kind of dyeing and finishing technology of cotton dyed yarn.

Background technology

Yarn-dyed fabric---Japan is called " first dyeing and weaving thing ", refer to and first yarn or long filament are passed through dyeing, then dyed yarn is used to carry out the process of weaving cotton cloth, this fabric is called " yarn-dyed fabric ", the factory producing yarn-dyed fabric is commonly referred to as dyeing and weaving mill, as denim, and most shirt fabric is all yarn-dyed fabric.

In the kind of yarn-dyed fabric, adopt cotton to be called full-cotton yarn-dyed fabric as warp and parallel, it weaves by first cotton dyed yarn being carried out dyeing and finishing process after, the cloth lovely luster of formation, and not fugitive color.

Summary of the invention

The object of invention: the dyeing and finishing technology that the object of the present invention is to provide a kind of cotton dyed yarn, when dyeing by applying external pressure, makes staining efficiency high, and even dyeing.

The technical solution used in the present invention: a kind of dyeing and finishing technology of cotton dyed yarn, its technological process is: metal-dress yarn-pre-treatment-dye cotton-contaminate cotton post processing-dehydration-oven dry-test package; The cotton technique of wherein said dye is that yarn pre-treatment completed immerses in dyestuff, controlling dyeing temperature is 50 ~ 60 DEG C of dyeing 20min, then 80 ~ 90 DEG C of poststaining 10min are warming up to, pump is adopted to apply 0.6KPa pressure to dye liquor during dyeing, impel dye liquor from the infiltration of bobbin internal layer outer layers, thus realize level dyeing.

DISPERSE DYES (o.w.f.) x; Acetic acid 1.2g/L; Levelling agent 1.2g/L.

Described pre-treatment step, for immerse in light alkali solution by yarn, processes 20min under 100 DEG C of conditions, the natural impurity in removing yarn and pigment, improves vividness and the wet friction index of yarn.

In described metal step, be that 0.36 ~ 0.38g/cm3 is wound on plastic bobbin by Polyester Yarns with rolling density, and guarantee that section header is at below 3mm.

The cotton post processing of described dye comprises soaps, fixation, soft technique, technique of wherein soaping be by dye cotton after yarn add in soaping agent carry out process of deoiling of soaping at 100 DEG C, add color-fixing agent after having soaped and carry out fixation treatment, then add organic silicone oil and carry out soft treatment.

Described oven dry adopts radio frequency dryer that yarn is carried out drying and processing.

Beneficial effect: the dyeing and finishing technology of a kind of cotton dyed yarn that the present invention discloses, when yarn dyeing, increases certain external pressure to nourrice tank, impels dye liquor from the infiltration of bobbin internal layer outer layers, thus realizes level dyeing.

Detailed description of the invention

Below in conjunction with specific embodiment, technology contents of the present invention is described in detail:

The dyeing and finishing technology of disclosed a kind of cotton dyed yarn, its technological process is: metal-dress yarn-pre-treatment-dye cotton-contaminate cotton post processing-dehydration-oven dry-test package.

Particularly: described metal is raw yarn diversified in specifications is required according to plan network is on plastic bobbin, forming consistent in density, being shaped metal yarn good for dyeing, require rolling density 0.36 ~ 0.38kg/cm3, appearance forming is good, and section header keeps below 3mm.

Described dress yarn step is that metal yarn is arranged to load on the yarn bar of sarong according to plan, and make metal yarn concavo-convex connected on yarn bar, top steel dish, tapered end pin and accomplish to seal completely.

Natural impurity (cotton seed hulls, wax etc.) in yarn and pigment are mainly removed in described pre-treatment, the whiteness and the capillary effect that improve yarn are that Colour Difference creates conditions, pre-treatment can improve the index such as vividness, wet friction of yarn, concrete steps, for immerse in light alkali solution by yarn, process 20min under 100 DEG C of conditions.

The cotton technique of described dye is that yarn pre-treatment completed immerses in dyestuff, controlling dyeing temperature is 50 ~ 60 DEG C of dyeing 20min, then 80 ~ 90 DEG C of poststaining 10min are warming up to, pump is adopted to apply 0.6KPa pressure to dye liquor during dyeing, impel dye liquor from the infiltration of bobbin internal layer outer layers, thus realize level dyeing.

The cotton post processing of described dye comprises soaps, fixation, soft technique, complete because dye, in dye liquor and yam surface remain a large amount of hydrolysis and unreacted dyestuff, the dyestuff of these remnants must be washed remove at high temperature (100 DEG C) Water Under by adding soaping agent, and the loose colour on yarn is removed in the effect of soaping, and improves the vividness of color, after having soaped, for deeply, middle look is in order to reach the processing request of Final finishing, make color in destarch, colour-fast during mercerising, need to add color-fixing agent and carry out fixation, the effect of color-fixing agent forms layer protecting film in yam surface, dyestuff on yarn is added at Final finishing do not split away off man-hour, in dyeing, the native waxy thing of yam surface is destroyed, friction between yarn increases, feel is hardening, after having dyeed, the compound adding organic silicone oil and so on is needed to carry out soft treatment in yarn, reduce the frictional force between yarn and yarn, be convenient to winder and unwinding of weaving cotton cloth.

Contaminate in the feeding of the yarn after cotton post processing centrifugal drier and carry out high speed dewatering, then radio frequency dryer is adopted to dry rear packaging to yarn, radio frequency dryer is adopted to be because radio frequency dryer is dried herein, its action principle is that yarn is through upper, the current field that lower two pole plates are formed, hydrone in current field in yarn is due to the effect by current field, molecular motion is accelerated, between molecule and molecule, friction aggravates thus produces heat to form water vapour mutually, by air exhauster, steam is retracted in air the object reaching oven dry again, radio frequency dryer has the saving energy, efficiently, the advantage that environmental pollution is little.

The above is only the preferred embodiment of the present invention; be noted that for those skilled in the art; under the premise without departing from the principles of the invention, can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.

Claims

1. a dyeing and finishing technology for cotton dyed yarn, is characterized in that: its technological process is: metal-dress yarn-pre-treatment-dye cotton-contaminate cotton post processing-dehydration-oven dry-test package; The cotton technique of wherein said dye is that yarn pre-treatment completed immerses in dyestuff, controlling dyeing temperature is 50 ~ 60 DEG C of dyeing 20min, then 80 ~ 90 DEG C of poststaining 10min are warming up to, pump is adopted to apply 0.6KPa pressure to dye liquor during dyeing, impel dye liquor from the infiltration of bobbin internal layer outer layers, thus realize level dyeing.

2. the dyeing and finishing technology of a kind of cotton dyed yarn according to claim 1, is characterized in that: described dye well auxiliary agent proportioning is: DISPERSE DYES (o.w.f.) x; Acetic acid 1.2g/L; Levelling agent 1.2g/L.

3. the dyeing and finishing technology of a kind of cotton dyed yarn according to claim 1, it is characterized in that: described pre-treatment step is for immerse in light alkali solution by yarn, under 100 DEG C of conditions, process 20min, the natural impurity in removing yarn and pigment, improve vividness and the wet friction index of yarn.

4. the dyeing and finishing technology of a kind of cotton dyed yarn according to claim 1, is characterized in that: in described metal step, is that 0.36 ~ 0.38g/cm3 is wound on plastic bobbin, and guarantees that section header is at below 3mm by Polyester Yarns with rolling density.

5. the dyeing and finishing technology of a kind of cotton dyed yarn according to claim 1, it is characterized in that: the cotton post processing of described dye comprises soaps, fixation, soft technique, technique of wherein soaping be by dye cotton after yarn add in soaping agent carry out process of deoiling of soaping at 100 DEG C, add color-fixing agent after having soaped and carry out fixation treatment, then add organic silicone oil and carry out soft treatment.

6. the dyeing and finishing technology of a kind of cotton dyed yarn according to claim 1, is characterized in that: described oven dry adopts radio frequency dryer that yarn is carried out drying and processing.