Unlock instant, AI-driven research and patent intelligence for your innovation.

Polyester printing and dyeing pretreatment process

A process, polyester technology, applied in the field of fabric pretreatment, can solve problems such as shedding and fabric dyeing defects, and achieve the effect of avoiding dyeing defects, low PTA content, and avoiding environmental pollution

Active Publication Date: 2021-06-15
SHANGHAI JINTANG TEXTILE NEW MATERIALS TECHCO
View PDF8 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] On the basis of the above-mentioned research, the applicant found that when the above-mentioned compound tea saponin was scouring the polyester fabric, the bonds of the polyester macromolecular substances continued to fall off, and the boiling A large amount of PTA is precipitated in the scouring waste liquid, and this part of PTA will re-polymerize and stick to the fabric, so that the pre-treated fabric will have dyeing defects in the subsequent dyeing process

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
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Polyester printing and dyeing pretreatment process
  • Polyester printing and dyeing pretreatment process
  • Polyester printing and dyeing pretreatment process

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Prepare the working solution——compound tea saponin solution: add 30 g of compound tea saponin per liter of water, and obtain the compound tea saponin solution after the compound tea saponin is dissolved; wherein the compound tea saponin is composed of bugong tea saponin and sodium silicate Composition, the consumption of sodium silicate is 40wt% of bugong tea saponin, and the composition of bugong tea saponin is calculated by mass percentage: nano-titanium oxide 1%, tea saponin 12%, methyl cellulose 1%, natural Soap powder 23%, diatomite 3%, sepiolite 6%, sodium carbonate 5%, and the rest is water.

[0037] The polyester fabric to be treated is pre-treated by using the prepared working solution, and the process flow chart is as follows: figure 1 As shown, the specific process is as follows:

[0038] (1) Rolling material: the polyester fabric to be treated is dipped with compound tea saponin solution under the situation of 100% rolling off rate;

[0039] (2) Scouring: ...

Embodiment 2

[0043] Prepare the working solution——compound tea saponin solution: add 20 g of compound tea saponin per liter of water, and obtain a compound tea saponin solution after the compound tea saponin is dissolved; wherein the compound tea saponin is composed of bugong tea saponin and sodium silicate Composition, the consumption of sodium silicate is 25wt% of bugong tea saponin, and the composition of bugong tea saponin is counted as: nano-titanium oxide 3%, tea saponin 18%, methyl cellulose 1%, natural Soap powder 23%, diatomite 3%, sepiolite 12%, sodium carbonate 10%, and the rest is water.

[0044] The polyester fabric to be treated is pre-treated by using the prepared working solution, and the process flow chart is as follows: figure 1 As shown, the specific process is as follows:

[0045] (1) Rolling material: the polyester fabric to be treated is dipped with compound tea saponin solution under the situation of 100% rolling off rate;

[0046] (2) Scouring: take the compound t...

Embodiment 3

[0050] Prepare the working solution——compound tea saponin solution: add 40 g of compound tea saponin per liter of water, and obtain a compound tea saponin solution after the compound tea saponin is dissolved; wherein the compound tea saponin is composed of bugong tea saponin, sodium silicate and sodium metasilicate, the consumption of sodium silicate is 30wt% of bugong tea saponin, the consumption of sodium metasilicate is 30wt% of bugong tea saponin, and the composition of bugong tea saponin is calculated as : Nano titanium oxide 2%, tea saponin 15%, methyl cellulose 3%, natural soap powder 30%, diatomaceous earth 4%, sepiolite 10%, sodium carbonate 8%, the rest is water.

[0051] The polyester fabric to be treated is pre-treated by using the prepared working solution, and the process flow chart is as follows: figure 1 As shown, the specific process is as follows:

[0052] (1) Rolling material: the polyester fabric to be treated is dipped and rolled with compound tea saponin...

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
Login to View More

PUM

No PUM Login to View More

Abstract

The invention belongs to the technical field of fabric pretreatment, and particularly relates to a polyester printing and dyeing pretreatment process. The polyester printing and dyeing pretreatment process comprises the steps of material rolling, boiling-off, water washing and drying, wherein a composite tea saponin solution is used as a working solution in the material rolling process and the boiling-off process, and the composite tea saponin is prepared from Bugong tea saponin and silicate. After the polyester fabric is treated by adopting the pretreatment process, the strength retention rate of the polyester fabric is high, and oxidation holes are extremely few; and waste liquid produced by the polyester printing and dyeing pretreatment process is low in hardness, low in COD value and low in PTA content.

Description

technical field [0001] The invention belongs to the technical field of fabric pretreatment, and in particular relates to a polyester printing and dyeing pretreatment process. Background technique [0002] Polyester is an important variety of synthetic fibers and is the trade name of polyester fibers in my country. It is a fiber-forming high polymer prepared from purified terephthalic acid (PTA) or dimethyl terephthalate (DMT) and ethylene glycol (EG) through esterification or transesterification and polycondensation reactions— - Polyethylene terephthalate (PET), fibers made by spinning and post-processing. [0003] So far, among synthetic fibers, polyester products have dominated both in quantity and variety. Polyester fiber has high strength and good elasticity, and its fabric is crisp and shape-retaining. It is also easy to wash, quick-dry, non-ironing, and free from insects. Therefore, polyester products have been in the market for a long time. [0004] Existing polyes...

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
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): D06P3/52D06P1/44D06P1/673D06P5/00
CPCD06P3/52D06P1/445D06P1/67383D06P5/00Y02P70/62
Inventor 张志君
Owner SHANGHAI JINTANG TEXTILE NEW MATERIALS TECHCO