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Direct/disperse one-bath method short-process dyeing and finishing technology for polyester-cotton knitted fabric

A knitted fabric and short-process technology, which is applied in the field of textile dyeing and finishing, can solve the problems of long time consumption, many processing machines, and high energy consumption, and achieve the goals of improving color fastness to rubbing, good UV resistance, and reducing process steps Effect

Inactive Publication Date: 2018-06-22
浙江锦石环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The three steps of desizing, scouring and bleaching in the pretreatment of polyester-cotton blended fabrics are mature and reproducible using the conventional three-step process. However, there are many processing machines, long time, low efficiency and high energy consumption.
The conventional dyeing process of polyester-cotton fabrics is the dispersion / activation two-bath method, which takes a long time and consumes a lot of water, electricity and steam.

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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  • Direct/disperse one-bath method short-process dyeing and finishing technology for polyester-cotton knitted fabric
  • Direct/disperse one-bath method short-process dyeing and finishing technology for polyester-cotton knitted fabric

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Preparation of 3-acrylamidopropyldimethylpropyltrimethoxysilane ammonium chloride

[0036] It is made of N,N dimethylpropylenediamine, acryloyl chloride, and γ-chloropropyltrimethoxysilane. The specific preparation method is:

[0037] Add 82mL of dichloromethane, 25mL of 6mol / L sodium hydroxide, 0.1molN,N dimethylpropylenediamine into a 250mL three-necked flask, N2 protection, ice-water bath, under N2 protection, magnetically stir evenly. Slowly add 25 mL of dichloromethane solution dissolved with 0.104 mol of acryloyl chloride with a constant pressure funnel, keeping the reaction temperature not exceeding 5°C. After the dropwise addition was completed, the stirring was continued for 30 min. Several layers were taken out and washed twice with water and twice with saturated sodium chloride solution, then dried with anhydrous sodium sulfate, and then evaporated to remove the solvent with a rotary evaporator to obtain a light yellow oil, which was then distilled under red...

Embodiment 2

[0040] Direct / dispersion one-bath short-process dyeing and finishing process of polyester-cotton knitted fabrics, including one-bath pretreatment, dyeing, soaping, and finishing.

[0041] (1), one-bath pretreatment

[0042] The polyester-cotton knitting is arranged in the machine cylinder, the bath ratio is 1:8, add sodium hydroxide 10g / L, 30% hydrogen peroxide 15g / L, sodium silicate 2g / L, sodium lauryl sulfate 2g / L, secondary alkyl Sodium sulfonate 3g / L, AEO-9 3g / L, treat at 95-100°C for 45min, then cool down to 40°C, neutralize to neutral with glacial acetic acid, drain the waste liquid, and wash with water;

[0043] (2), dyeing

[0044] Prepare the dye solution with a bath ratio of 1:8, disperse dye 1-5% owf, high-temperature leveling agent 2g / L, adjust the pH value to 5.5-6 with acetic acid, raise the temperature at 1.5°C / min to 130°C, and keep it warm for 45 minutes; ℃ / min to cool down to 65°C, add direct blended dye 1-5% owf, sodium sulfate 20-30g / L, heat up to 95°C at...

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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Abstract

The invention relates to a direct / disperse one-bath method short-process dyeing and finishing technology for a polyester-cotton knitted fabric. The direct / disperse one-bath method short-process dyeingand finishing technology comprises one-bath method pretreatment: at the bath ratio of 1 to 8, treating 10g / L of sodium hydroxide, 15g / L of 30 percent hydrogen peroxide, 2g / L of sodium silicate, 2g / Lof sodium lauryl sulfate, 3g / L of secondary alkane sulphonate sodium and 3g / L of AEO-9 at the temperature of 95 to 100 DEG C for 45 minutes; dyeing: under the conditions that the bath ratio is 1 to 8,and the amount of disperse dye is 1 to 5 percent of (on weight of fabric), adjusting the pH value to 5.5 to 6 and carrying out thermal insulation at the temperature of 130 DEG C for 45 minutes; adding 1 to 5 percent of direct blend dye (on weight of fabric), 20 to 30g / L of anhydrous sodium sulphate and carrying out thermal insulation at the temperature of 95 DEG C for 30 minutes; soaping: at thebath ratio of 1 to 10, using 2g / L of detergent 209 and 2g / L of chelating dispersant and soaping at the temperature of 90 to 95 DEG C for 10 minutes; aftertreatment: taking 0.5g / L of compound antibacterial emulsion and 0.7g / L of amino-silicone oil and drying at the temperature of 175 to 185 DEG C.

Description

technical field [0001] The invention relates to a short-process dyeing and finishing process of textiles, in particular to the direct / dispersion one-bath short-process dyeing and finishing process of polyester-cotton knitted fabrics, and belongs to the field of dyeing and finishing of textiles. Background technique [0002] Polyester-cotton blended fabric has the moisture absorption and air permeability of cellulose fiber, and the good shape retention and color fastness of polyester fiber, so it is deeply loved by consumers. [0003] The three steps of desizing, scouring and bleaching in the pretreatment of polyester-cotton blended fabrics are mature and mature with a conventional three-step process, with good reproducibility, but there are many processing machines, long time, low efficiency and high energy consumption. The conventional dyeing process of polyester-cotton fabrics is the dispersion / activation two-bath method, which takes a long time and consumes a lot of water...

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): D06P1/16D06P1/673D06P1/62D06P3/82D06M13/513D06M11/46D06B21/00D06M101/06D06M101/32
CPCD06B21/00D06M11/46D06M13/5135D06M16/00D06M2200/25D06P1/0032D06P1/16D06P1/623D06P1/627D06P1/67383D06P3/8233
Inventor 顾相军
Owner 浙江锦石环保科技有限公司
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