Method for preparing petroleum ether modified polyacrylate pigment printing adhesive

Abstract

The invention discloses a method for preparing a petroleum ether modified polyacrylate pigment printing adhesive and belongs to the field of pigment printing adhesive synthesis. The method includes the two steps that firstly, by mass, acrylamide is dissolved in deionized water and then the mixture is placed in a reactor, an emulsion A and an initiator aqueous solution A are added in the reactor dropwise, then an emulsion B and an initiator aqueous solution B are added dropwise, a heat preservation reaction is conducted after dropwise addition, the mixture is cooled to room temperature after the reaction ends, and the pH value is adjusted to obtain polyacrylate emulsion; secondly, by mass, a petroleum ether solution is added into the polyacrylate emulsion in a stirring mode, and the pigment printing adhesive is obtained. The method is simple and easy to operate, the defects that a coating is poor in water resistance, is viscous at high temperature and fragile at low temperature, not resistant to stain and the like can be effectively overcome, printed fabric has good hand feeling and good drying tolerance and wet rubbing color fastness, and economic benefits are high.

Description

Technical field: [0001] The invention relates to a preparation method of a petroleum ether modified polyacrylate paint printing adhesive, which belongs to the field of paint printing adhesive synthesis. Background technique: [0002] In view of the shortcomings of traditional dyeing process such as complex, high cost and long processing cycle, pigment printing has emerged abroad, especially in the United States, West Germany and Japan. As the key of pigment printing, that is, printing adhesive, related research abroad has always been in a leading position. The development of foreign adhesives has had four generations of products so far: the first generation of adhesives is a polymer film-forming substance that cannot be cross-linked; the second generation is the introduction of hydroxyl, amino, carboxyl and other active substances into the adhesive structure. When heated, these active groups can form covalent bonds with hydroxyl and amino groups in the fiber, thereby improv...

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Problems solved by technology

This invention is the closest prior art of the present invention, and this invention has basically accomplished the purpose of taking into account both hand feel and fastness, but the effects are not excellent enough

[0005] Chinese invention patent CN201310478426.3 discloses a method for preparing a pigment printing adhesive by graphene oxide modified polyacrylate. After dissolving ammonium persulfate in deionized water, place it in a reactor at 75-80°C; Emulsion A and initiator aqueous solution A are added, and then emulsion B and initiator aqueous solution B are added, after dripping, the temperature is kept at 75-80°C for 2 hours, the temperature is lowered, the pH is adjusted to 4.0-6.5 with ammonia water, and the material is discharged to obtain Polyacrylate emulsion, stirring graphene oxide aqueous solution into polyacrylate emulsion to obtain pigment printing adhesive, this invention introduces graphene oxide into the modification of polyacrylate emulsion to prepare pigment printing adhesive, Under the condition of the same amount of adhesive for the pigment printing adhesive, the addition of graphene oxide can improve the dry and wet rubbing fastness of the printed fabric by 0.5-1 level, and the softness and washing fastness of the fabric are basically unchanged. The closest to the prior art, the invention uses graphene oxide modified polyacrylate to prepare the pigment printing adhesive, which has the advantages of both inorganic and synthetic polymer materials, but its washing fastness and hand feeling cannot meet the growing needs of people , still needs to be improved

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