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A kind of washable and friction-resistant ink for cotton fabric and its preparation method

A cotton fabric and rubbing-resistant technology, which is applied in the field of water-based ink and its preparation, can solve problems such as the lack of mechanical properties of adhesive coatings, and achieve the effects of improving rubbing fastness, mild operating conditions, and improving fastness

Active Publication Date: 2020-06-16
HANGZHOU HIWETECH CHEM TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, from the analysis of the microscopic chain structure, the chemical structure of the traditional "core-shell" chain is different, and there is no covalent bond between the "soft" and "hard" polymers, so phase separation is easy to occur in the film-forming stage, resulting in the mechanical damage of the adhesive coating. lack of performance

Method used

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  • A kind of washable and friction-resistant ink for cotton fabric and its preparation method
  • A kind of washable and friction-resistant ink for cotton fabric and its preparation method
  • A kind of washable and friction-resistant ink for cotton fabric and its preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] (1) Synthesis of macromolecular trithiocarbonate compounds

[0050]The chemical structural formula of the target product is shown in Formula I, and the specific parameters are as follows: A is shown in Formula 1a, B is shown in Formula 5b, X=4, Y=20. The specific synthesis steps are as follows: add 1.27g of formula II structure compound, 0.12g of oil-soluble initiator 4,4' azo-(4-cyanovaleric acid), 14.40g of acrylic acid (formula 5b monomer) to 35g of medium solvent In dioxane, stirred and dissolved, then moved into a three-necked flask connected with a serpentine condenser and high-purity nitrogen, passed nitrogen to remove oxygen for about 30 minutes, heated to 80°C in a water bath, and reacted for 2 hours under a nitrogen atmosphere; after the above reaction was completed, then Add the mixed liquid of 0.12g oil-soluble initiator 4,4'azo-(4-cyanovaleric acid), 16.72g formula 1a monomer and 15g medium solvent dioxane to the flask, and continue to React for 12 hours; ...

Embodiment 2

[0054] (1) Synthesis of macromolecular trithiocarbonate compounds

[0055] The chemical structural formula of the target product is shown in Formula I, and the specific parameters are as follows: A is shown in Formula 2a, B is shown in Formula 4b, X=2, Y=60. The specific synthesis steps are as follows: 0.254g formula II structure compound, 0.03g oil-soluble initiator 4,4' azo-(4-cyanovaleric acid), 13.92g hydroxyethyl acrylate (formula 4b monomer) were added to 35g of the medium solvent dioxane, stirred and dissolved, then transferred to a three-necked flask connected with a serpentine condenser and high-purity nitrogen, passed nitrogen to remove oxygen for about 30 minutes, heated to 80°C in a water bath, and reacted for 2 hours under a nitrogen atmosphere; the above reaction was completed Afterwards, the mixed liquid of 0.03g oil-soluble initiator 4,4'azo-(4-cyanovaleric acid), 1.748g formula 2a monomer and 15g medium solvent dioxane was added to the flask, and Continue the...

Embodiment 3

[0059] (1) Synthesis of macromolecular trithiocarbonate compounds

[0060] The chemical structural formula of the target product is shown in Formula I, and the specific parameters are as follows: A is shown in Formula 3a, B is shown in Formula 5b, X=3, Y=30. The specific synthesis steps are as follows: add 1.016g of formula II structure compound, 0.10g of oil-soluble initiator 4,4' azo-(4-cyanovaleric acid), 17.28g of acrylic acid (formula 5b monomer) to 35g of medium solvent In dioxane, stirred and dissolved, then moved into a three-necked flask connected with a serpentine condenser and high-purity nitrogen, passed nitrogen to remove oxygen for about 30 minutes, heated to 80°C in a water bath, and reacted for 2 hours under a nitrogen atmosphere; after the above reaction was completed, then Add the mixed liquid of 0.10g oil-soluble initiator 4,4'azo-(4-cyanovaleric acid), 10.104g formula 3a monomer and 15g medium solvent dioxane into the flask, and continue to React for 12 ho...

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PUM

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Abstract

The invention discloses highly washable and friction-resistant ink for cotton fabrics. The ink is composed of the following components in parts by weight: 3-5 parts of pigments, 2.5-6.5 parts of macromolecular trisulfide carbonate compounds, 0.8-1.0 part of lauryl sodium sulfate, 0.8-1.0 part of n-hexadecane, 15-18 parts of soft monomers, 2-5 parts of hard monomers, 0.03-0.05 part of a water-soluble initiator and 65-80 parts of deionized water. Compared with the traditional non-structured or non-block structure type adhesive film, the block 'core-shell' structure coated ink designed in the invention has excellent mechanical property after film forming, and an RAFT living polymerization technology is adopted when a basic molecular chain structure of the adhesive film is designed, so that each macromolecular chain is directionally and quantitatively grafted with active groups that can carry out characteristic reactions with the cotton fabrics, binding force between the adhesive layer ofthe ink and fibers of the cotton fabrics is greatly enhanced on a molecular level, and macroscopic performances such as washable property and fastness to rubbing of the ink are improved.

Description

[0001] (1) Technical field [0002] The invention relates to a water-based ink and a preparation method thereof, in particular to a water-resistant and friction-resistant ink for cotton fabrics and a preparation method thereof. [0003] (2) Background technology [0004] The strength of the adhesion of pigment ink to the substrate has always been a key issue in the industry. Compared with the previous method of physically blending pigment powder and binder particles, more researchers now use in-situ polymerization methods such as emulsion polymerization, miniemulsion polymerization, microemulsion polymerization, and suspension polymerization to coat pigment particles. It can not only significantly improve the dispersibility and wettability of the pigment in the ink, but also make the adhesive film more efficient in bonding the pigment particles to the substrate. [0005] However, the structure of coated particles has the most direct influence on the mechanical properties of th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D06P3/60D06P1/44D06P1/52D06P1/62C09D11/322
CPCC09D11/322D06P1/44D06P1/5257D06P1/627D06P3/60
Inventor 许华君韩剑砺许少宏
Owner HANGZHOU HIWETECH CHEM TECH CO LTD
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