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Dyeing method for steaple reyon fabric in airflow cylinder with low bath ratio

A dyeing method and air cylinder technology, applied in the field of printing and dyeing, can solve the problems of uneven dyeing of rayon, long process time, and more sewage, and achieve the effect of promoting direct color fixing, avoiding salting out, and shortening dyeing time.

Active Publication Date: 2019-04-12
浙江劲光纺织科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to address the deficiencies of the prior art, to provide a method for dyeing rayon cloth with a low liquor ratio in an air-flow cylinder, which solves the problem of uneven coloring, coloring, and process time of rayon cloth dyed with a low liquor ratio in an air-flow cylinder. problems such as long length and excessive sewage

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] (1) Add 1000kg of tap water to the dyeing vat of the air flow cylinder, put 400kg of rayon cloth into the dyeing vat, run for 10 minutes to make the cloth surface completely wet, control the heating rate of 3°C / min, and heat it to 60°C with steam.

[0033] (2) 150L of return water from the dyeing vat is sent to the auxiliary vat, 2kg of the same-bath degreaser TF-128E and 1kg of penetrating agent DM-1741 are dissolved in the auxiliary vat, and then pumped into the dyeing vat of the air flow cylinder to run for 6 minutes to make the cloth surface even with auxiliary The concentration of the same-bath degreasing agent TF-128E (Transfer) in the dye vat is 2g / L, and the concentration of the penetrating agent DM-1741 (Demei) is 1g / L.

[0034] (3) 150L of backwater from the dyeing vat is sent to the auxiliary vat, and 7.6kg of reactive yellow 3RF-150%, 9.2kg of reactive red 3BF-150%, 4.4kg of navy blue CNF and 8kg of dispersant DM1501 (German and American) are added to the aux...

Embodiment 2

[0041] (1) Add 1000kg of tap water to the dyeing vat of the airflow cylinder, put 400kg of rayon cloth into the dyeing vat, run for 10 minutes to make the cloth surface completely soaked, control the heating rate of 2°C / min, and heat it to 60°C with steam.

[0042] (2) 150L of return water from the dyeing vat is sent to the auxiliary vat, and 2kg of the same-bath degreaser TF-128E and 1kg of penetrating agent DM-1741 are dissolved in the auxiliary vat, and then pumped into the dyeing vat of the air-flow cylinder to run for 8 minutes to make the cloth surface even with auxiliary The concentration of the same-bath degreasing agent TF-128E in the dye vat is 2g / L, and the concentration of the penetrating agent DM-1741 is 1g / L.

[0043] (3) 150L of return water from the dyeing vat is sent to the auxiliary vat, and 7.6kg of reactive yellow 3RF-150%, 9.2kg of reactive red 3BF-150%, 4.4kg of navy blue CNF and 4kg of dispersant DM1501 are added to the auxiliary vat, after beating and diss...

Embodiment 3

[0050] (1) Add 1000kg of tap water to the dyeing vat of the airflow cylinder, put 400kg of rayon cloth into the dyeing vat, run for 10 minutes to make the cloth surface completely soaked, control the heating rate of 5°C / min, and heat it to 60°C with steam.

[0051] (2) 150L of return water from the dyeing vat is sent to the auxiliary vat, 2kg of the same-bath degreaser TF-128E and 1kg of penetrating agent DM-1741 are dissolved in the auxiliary vat, and then pumped into the dyeing vat of the air-flow cylinder to run for 10 minutes to make the cloth surface uniform with auxiliary The concentration of the same-bath degreasing agent TF-128E in the dye vat is 2g / L, and the concentration of the penetrating agent DM-1741 is 1g / L.

[0052] (3) 150L of return water from the dyeing vat is sent to the auxiliary vat, and 7.6kg of reactive yellow 3RF-150%, 9.2kg of reactive red 3BF-150%, 4.4kg of navy blue CNF and 6kg of dispersant DM1501 are added to the auxiliary vat, after beating and di...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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PUM

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Abstract

The invention relates to a dyeing method for a steaple reyon fabric in an airflow cylinder with a low bath ratio. The dyeing method comprises the following steps: putting water into a dyeing cylinderof an airflow cylinder, putting the steaple reyon fabric in the dyeing cylinder, moving to completely soak cloth surfaces, and heating to 58-60 DEG C by controlling temperature increase speeds; feeding 10-20wt% of water back into a secondary cylinder, dissolving a one-bath deoiling agent and a permetant into the secondary cylinder, and sucking into the dyeing cylinder of the airflow cylinder to carry aids on clothe surfaces uniformly; feeding 10-20wt% of water back into the secondary cylinder, pulping and clarifying with active dyes and dispersants in the secondary cylinder, quantitatively pumping into the dyeing cylinder, enabling the airflow cylinder to operate continuously, and after complete pumping, enabling the airflow cylinder to operate continuously to soak the steaple reyon fabricinto the active dyes uniformly; feeding 10-20wt% of water back into the secondary cylinder for three times from the dyeing cylinder, adding anhydrous sodium sulfate and sodium carbonate at differenttimes, pulping and clarifying, sucking into the dyeing cylinder, keeping the temperature at 58-60 DEG C to operate so as to ensure uniform dyeing of the active dyes; cutting cloth, comparing colors, cleaning the cloth surfaces with clean water, and carrying out dyeing and shaping in aftertreatment. By adopting the dyeing method, the problems that a steaple reyon fabric has nonuniform dyeing, mixedcolors, long process time, excessive sewage and the like in an airflow cylinder with a low bath ratio can be solved.

Description

technical field [0001] The invention relates to the technical field of printing and dyeing, in particular to a method for dyeing rayon cloth with a low bath ratio in an air cylinder. Background technique [0002] Rayon is viscose fiber (Viscose), which is a cellulose fiber obtained by extracting and remodeling fiber molecules from natural wood cellulose. Rayon has the characteristics of smooth and cool, breathable, antistatic, anti-ultraviolet, and colorful, and is currently widely used in various underwear, textile, clothing, non-woven and other fields. However, because rayon absorbs water and dyes very quickly, it is easy to cause color flowers when dyed. [0003] Existing dyeing process is a lot, for example CN 107503175 A discloses a kind of dyeing process of blended fabric, comprises the following steps, at first, desizing, degreasing; Dye in the dyeing room, keep it for 30 minutes after dyeing, take it out and dry it; then, after drying, immerse it in water at 7°C fo...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06P1/38D06P1/673D06P1/00D06P1/96D06P3/66
CPCD06P1/0032D06P1/38D06P1/6735D06P1/96D06P3/66
Inventor 王国林邵立军
Owner 浙江劲光纺织科技有限公司
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