Unlock instant, AI-driven research and patent intelligence for your innovation.
Waterless polyester fabric printing and dyeing process based on modified chitosan leveling agent
What is Al technical title?
Al technical title is built by PatSnap Al team. It summarizes the technical point description of the patent document.
A polyester fabric, printing and dyeing technology, applied in the direction of dyeing, textiles and papermaking, etc., can solve the problems of destroying the ecological environment, waste of materials, etc., and achieve the effects of reducing environmental pollution, fewer dyeing processes, and lower requirements for dyeing equipment
Pending Publication Date: 2022-07-05
扬州乾辉纺织品有限公司
View PDF5 Cites 1 Cited by
Summary
Abstract
Description
Claims
Application Information
AI Technical Summary
This helps you quickly interpret patents by identifying the three key elements:
Problems solved by technology
Method used
Benefits of technology
Problems solved by technology
However, the use of a large amount of color-fixing additives not only causes a waste of materials, but also produces a large amount of sewage, which seriously damages the ecological environment.
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
Click on the blue label to locate the original text in one second.
Reading with bidirectional positioning of images and text.
Smart Image
Examples
Experimental program
Comparison scheme
Effect test
Embodiment 1
[0041] 1) Dissolve 1g of disperse dye in a mixed solvent of 1L dimethyl sulfoxide and dimethyl carbonate (volume ratio is 4:6);
[0042] 2) Dissolve 10 mg of modified chitosan in 100 ml of dimethyl sulfoxide;
[0043] 3) mixing step 2) with the solution of step 1) to obtain dye liquor;
[0044] 4) Put the polyester fabric into the dye solution for heating and dyeing;
[0045] 5) After the dyeing is finished, the fabric is taken out, washed 2-3 times with dimethyl sulfoxide and dimethyl carbonate respectively, and vacuum-dried to constant weight to obtain the dyed product;
[0046] 6) Recover the dyeing residue, add dye, modified chitosan and solvent for the next dyeing.
Embodiment 2
[0048] 1) Dissolve 1g of disperse dye in a mixed solvent of 1L dimethyl sulfoxide and dimethyl carbonate (volume ratio is 4:6);
[0049] 2) Dissolve 20 mg of modified chitosan in 100 ml of dimethyl sulfoxide;
[0050] 3) mixing step 2) with the solution of step 1) to obtain dye liquor;
[0051] 4) Put the polyester fabric into the dye solution for heating and dyeing;
[0052] 5) After the dyeing is finished, the fabric is taken out, washed 2-3 times with dimethyl sulfoxide and dimethyl carbonate respectively, and vacuum-dried to constant weight to obtain the dyed product;
[0053] 6) Recover the dyeing residue, add dye, modified chitosan and solvent for the next dyeing.
Embodiment 3
[0055] 1) Dissolve 1g of disperse dye in a mixed solvent of 1L dimethyl sulfoxide and dimethyl carbonate (volume ratio is 4:6);
[0056] 2) Dissolve 30 mg of modified chitosan in 100 ml of dimethyl sulfoxide;
[0057]3) mixing step 2) with the solution of step 1) to obtain dye liquor;
[0058] 4) Put the polyester fabric into the dye solution for heating and dyeing;
[0059] 5) After the dyeing is finished, the fabric is taken out, washed 2-3 times with dimethyl sulfoxide and dimethyl carbonate respectively, and vacuum-dried to constant weight to obtain the dyed product;
[0060] 6) Recover the dyeing residue, add dye, modified chitosan and solvent for next dyeing.
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
Login to View More
Abstract
The invention relates to a polyester fabric anhydrous printing and dyeing process based on a modified chitosan leveling agent. The process comprises the following steps: dissolving a disperse dye by using dimethyl sulfoxide and dimethyl carbonate as a mixed solvent; dissolving a small amount of modified chitosan in dimethyl sulfoxide; mixing to obtain dye liquor; putting the polyester fabric into the dye liquor for heating and dyeing; after dyeing, cleaning and drying to obtain a dyed material; and dyeing residual liquid is recycled. A solvent dyeing method is adopted, residual dye liquor after dyeing can be recycled, environmental pollution is effectively reduced, and the waterless dyeing requirement in the polyester fabric dyeing process is met; the dye liquor prepared by blending the modified chitosan leveling agent and the disperse dye is good in dispersion effect, the leveling property of the disperse dye in the dimethyl sulfoxide and dimethyl carbonate mixed solvent is improved, the problems that color and color are easy to appear and coloring is uneven in the polyester fabric dyeing process are effectively solved, the number of dyeing procedures is small, the steps are simple, and the requirement for dyeing equipment is low; and the polyester fabric can be effectively endowed with softness and better hand feeling.
Description
technical field [0001] The invention relates to the technical field of textile waterless printing and dyeing, in particular to a waterless printing and dyeing process for polyester fabrics based on a modified chitosan leveling agent. Background technique [0002] my country is the world's largest textile producer and textile trader. The textile printing and dyeing industry is a traditional pillar industry in my country. With the rapid development of the national economy, my country's textile industry has also entered a period of rapid development. Printing and dyeing technology is a technology for physical and chemical treatment of various textile materials in the production process to make fabrics have various brilliant colors, and occupies a pivotal position in the textile industry. [0003] In order to achieve good color, the existing printing and dyeing technology uses a large number of fixed-color printing and dyeing agents. Fixing agent is one of the important auxili...
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
Application Date:The date an application was filed.
Publication Date:The date a patent or application was officially published.
First Publication Date:The earliest publication date of a patent with the same application number.
Issue Date:Publication date of the patent grant document.
PCT Entry Date:The Entry date of PCT National Phase.
Estimated Expiry Date:The statutory expiry date of a patent right according to the Patent Law, and it is the longest term of protection that the patent right can achieve without the termination of the patent right due to other reasons(Term extension factor has been taken into account ).
Invalid Date:Actual expiry date is based on effective date or publication date of legal transaction data of invalid patent.
Login to View More 
Login to View More