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One-bath one-step dyeing method for wool/cationic dyeable polyester fabric

A technology of polyester fabric and dyeing method, applied in the field of textile printing and dyeing, can solve the problems of waste of energy consumption resources, long production cycle, low production efficiency, etc., and achieve the effects of reduced damage, soft hand feeling and high color fastness

Pending Publication Date: 2020-01-03
CHANGZHOU NEW WIDE KNITTING & DYEING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The disadvantages of this method are: (1) Not only is the production cycle long, it takes twice the dyeing time, but also the production efficiency is low, especially there is an additional washing and color fixing process, which wastes energy resources.
(2) Wool fiber is easy to harden at a temperature of 100°C to 130°C, thus losing the characteristics of soft hand feeling, natural and soft luster, and elegant color tone of wool fabric

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）

[0020] The wool / cation dyeable polyester fabric one-bath one-step dyeing method of the present embodiment has the following steps:

[0021] ① Soak the wool / cation dyeable polyester fabric in the pretreatment solution, pretreat it at room temperature (20°C in this example) for 30 minutes, and then pickle it.

[0022] The pretreatment liquid is an aqueous solution containing 2.0 g of refined emulsifier and 5.0 g of sodium bicarbonate per liter.

[0023] Among them, the refined emulsifier used is SEM-35N refined emulsifier produced by Shinshou Chemical Co., Ltd., and its main component is polyoxyethylene nonylphenol ether.

[0024] The wool / cation dyeable polyester fabric used in this embodiment is 65% wool+35% cationic dyeable polyester interwoven knitted fabric.

[0025] The cationic dyeable polyester fiber used in this example is Easy Cationic Dyeable Polyester produced by Shaoxing Jiuzhou Chemical Fiber Co., Ltd., and the product model is ATPDP® ECDP.

[0026] ②Immerse the ...

Embodiment 2～ Embodiment 4）

[0032] The dyeing method of each embodiment is basically the same as that of Example 1, and the differences are shown in Table 1.

[0033] Table 1

[0034] Example 1 Example 2 Example 3 Example 4 Wool / Cation Dyeable Polyester Fabric 65% wool + 35% cationic dyeable polyester interwoven knitted fabric 30% wool + 70% cationic dyeable polyester blended knitted fabric 50% wool + 50% cationic dyeable polyester blended knitted fabric 80% cationic dyeable polyester + 20% wool interwoven knitted fabric Cationic blue dye SunacrylBlue ED-GBL 0.1% 0.15% 0.2% 0.3% Cationic yellow dye SunacrylYellow 10G-ED 0.09% 2.5% 1.5% 2.0% Acid blue dye Sunacid Blue3G 0.07% 0.5% 0.05% 2.5% Fabric Hand soft soft soft soft Color fastness Level 5 Grade 4-5 Level 5 Grade 4-5

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PUM

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Abstract

The invention discloses a one-bath one-step dyeing method for wool / cationic dyeable polyester fabric, which comprises the steps: (1) immersing wool / cationic dyeable polyester fabric in a pretreatmentsolution, performing pretreatment for 10-60 min at normal temperature, and then carrying out pickling; (2) immersing the pretreated fabric in a dye liquor containing a cationic dye and an acid dye, wherein pH of the dye liquor is 3-7, and dyeing both wool fiber and cationic dyeable polyester fiber at the temperature of 80-100 DEG C for 20-70 min; and (3) washing the dyed fabric at room temperature. On one hand, the cationic easy-to-dye polyester fiber is adopted, so that the cationic easy-to-dye polyester fiber and wool can be dyed by the one-bath one-step method at 100 DEG C and below, and good hand feeling of fabric can be guaranteed; on the other hand, a special pretreatment temperature is adopted, the one-bath one-step method can obtain a better dyeing effect, and the fastness of the fabric can reach higher than grade 4 under the condition of not needing color fixation.

Description

technical field [0001] The invention belongs to the technical field of textile printing and dyeing, in particular to a one-bath and one-step dyeing method for wool / cation dyeable polyester fabric. Background technique [0002] The existing dyeing methods for wool / cation dyeable polyester fabrics are to immerse the pretreated fabric in a dye solution containing cationic dyes and acid dyes, and then dye wool fibers at a temperature of 80°C to 100°C for 30 minutes to 10 minutes. After 60 minutes, heat up to 100℃~130℃ to dye cationic dyeable polyester fiber for 30min~60min. After the dyed fabric is washed with water at room temperature, it needs to be acid-fixed at 50℃~70℃ for 10min~30min. Wherein, the pretreatment temperature is 90°C to 100°C. [0003] The disadvantages of this method are: (1) Not only is the production cycle long, it takes twice as long as the dyeing time, but also the production efficiency is low, especially the addition of a water-washing and color-fixing p...

Claims

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Application Information

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IPC IPC(8): D06P1/39D06P1/00D06P1/613D06P1/673D06P3/87
CPCD06P1/39D06P1/00D06P1/6735D06P1/6135D06P3/8219
Inventor 黄庄芳容吴金玲侯丽丽左凯杰
Owner CHANGZHOU NEW WIDE KNITTING & DYEING
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