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A kind of atmospheric pressure dip-dyeing process of bio-based ptt series polyester fabric

A polyester fabric, bio-based technology, applied in the field of textile printing and dyeing, can solve the problems of high energy consumption, low dye uptake, low affinity of polyester fiber fabrics, etc., and achieve the effects of reducing emissions, easy operation and low energy consumption

Active Publication Date: 2021-07-20
DONGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These three dyeing methods all have disadvantages: the commonly used carrier in the carrier dyeing method has certain toxicity, while the high temperature and high pressure dyeing method and the hot melt dyeing method consume a lot of energy and have high requirements for dyeing equipment
Anthraquinone dyes have high affinity to cellulose fibers and protein fibers, but low affinity to polyester fabrics, low dye uptake, and poor color fastness
In addition, vegetable dyes are a kind of mixture system with various components, and the dyeing mechanism is complicated during the dyeing process, which is prone to problems such as color flowering and uneven dyeing.
[0005] Based on the natural characteristics of bio-based PTT and madder plant dyes, combining the two to develop an atmospheric dyeing process will fully reflect the green and environmental protection connotation of the processing process, but the use of madder dyes in the dyeing of bio-based PTT fabrics has certain limitations. challenge
There is no relevant literature report

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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  • A kind of atmospheric pressure dip-dyeing process of bio-based ptt series polyester fabric
  • A kind of atmospheric pressure dip-dyeing process of bio-based ptt series polyester fabric

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] (1) One-bath treatment for desizing and cleaning: use sodium lauryl sulfate, polyoxyethylene ether compound detergent (1:1 compound, 5g / L in total), sodium hydroxide (3g / L) to remove The size of the bio-based PTT polyester fabric and the oily stains on the fabric were then dried at 40°C.

[0030] (2) Presetting: dry heat setting, the temperature is 130°C, the time is 60s, and the pretension is 1%.

[0031] (3) Alkali treatment: Exhaust dyeing, liquor ratio 1:40, lye concentration 10g / L, treatment temperature 95°C, treatment time 30min.

[0032] (4) Preparation of dye solution: madder dye content 2% (o.w.f), with CH 3 COOH-CH 3 COONa buffer was used to adjust the pH value of the dye bath to 5, and ultrasonic treatment was performed for 20 min.

[0033] (5) The dyeing bath is first heated from room temperature to 50°C, and the fabric is put into the prepared dye solution, the heating rate is 2°C / min, the holding temperature is 95°C, and the holding time is 30 minutes. ...

Embodiment 2

[0035] (1) One-bath treatment for desizing and cleaning: use sodium lauryl sulfate, polyoxyethylene ether compound detergent (1:1 compound, 5g / L in total), sodium hydroxide (3g / L) to remove The size of the bio-based PTT / PET composite fabric during weaving and the oily stains on the fabric were then dried at 40°C.

[0036] (2) Presetting: dry heat setting, the temperature is 140°C, the time is 60s, and there is no pretension.

[0037] (3) Alkali treatment: Exhaust dyeing, liquor ratio 1:40, lye concentration 10g / L, treatment temperature 95°C, treatment time 30min.

[0038] (4) Preparation of dye solution: madder dye content 2% (o.w.f), with CH 3 COOH-CH 3 COONa buffer was used to adjust the pH value of the dye bath to 5, and ultrasonic treatment was performed for 20 min.

[0039] (5) The dyeing bath is first heated from room temperature to 50°C, and the fabric is put into the prepared dye solution. The heating rate is 2°C / min, the holding temperature is 95°C, and the holding...

Embodiment 3

[0041] (1) One-bath treatment for desizing and cleaning: use sodium lauryl sulfate, polyoxyethylene ether compound detergent (1:1 compound, 5g / L in total), sodium hydroxide (3g / L) to remove The size of the bio-based PTT / modified PET composite fabric during weaving and the oily stains on the fabric were then dried at 40°C.

[0042] (2) Presetting: dry heat setting, the temperature is 130°C, the time is 60s, and the pretension is 1%.

[0043](3) Alkali treatment: Exhaust dyeing, bath ratio 1:40, lye concentration 15g / L, treatment temperature 95°C, treatment time 30min.

[0044] (4) Preparation of dye solution: madder dye content 2% (o.w.f), with CH 3 COOH-CH 3 COONa buffer was used to adjust the pH value of the dye bath to 5, and ultrasonic treatment was performed for 20 min.

[0045] (5) The dyeing bath is first heated from room temperature to 50°C, and the fabric is put into the prepared dye solution, the heating rate is 2°C / min, the holding temperature is 95°C, and the hol...

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Abstract

The invention relates to a normal-pressure dip-dyeing process for bio-based PTT series polyester fabrics, comprising: (1) sequentially desizing and washing one bath of bio-based PTT series polyester fabrics, presetting, alkali treatment, and obtaining pretreatment (2) prepare madder dyeing liquor; (3) place the pretreated fabric in madder dyeing liquor at room temperature, carry out atmospheric pressure dip-dyeing, take out after dyeing, rinse, soap, wash with water, and dry, that is have to. Using the dyeing method provided by the invention to dye the bio-based PTT series polyester fabrics can use normal-pressure dyeing equipment, which is easy to operate and low in energy consumption.

Description

technical field [0001] The invention belongs to the technical field of textile printing and dyeing, in particular to a normal-pressure dip-dyeing process for bio-based PTT series polyester fabrics. Background technique [0002] Polytrimethylene terephthalate fiber (PTT fiber) is a polymer formed by polycondensation of dimethyl terephthalate (DTA) or terephthalic acid (PTA) and 1,3-propylene glycol (PDO), and then spun A synthetic fiber processed from silk. PTT has high resilience, excellent abrasion resistance and stain resistance, and excellent dyeing performance. Compared with traditional petroleum-based PTT fibers, bio-based PTT fibers are made of PDO obtained by microbial fermentation technology as raw material through polymerization and spinning, which has the advantages of renewable raw materials and less environmental pollution, and is more in line with the concept of "green development" . Generally speaking, the traditional dyeing methods of polyester fabrics main...

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 Patents(China)
IPC IPC(8): D06P1/34D06P3/52D06P5/10
Inventor 葛凤燕张韩芬蔡再生
Owner DONGHUA UNIV
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