Views: 0 Author: Site Editor Publish Time: 2021-07-08 Origin: Site
Pigment printing is by using polymer (adhesive) film in the surface of the fabric, there will be no affinity and reaction force of non-ferrous material (paint) paint adhesion on the fabric, after heat treatment the pigment printing ink fixation, giving the fabric a variety of colors and designs of the printing process, applicable to all kinds of fiber and blended fabric printing processing.
What is the functional mechanism of adhesive in coating printing?
What needs to be focused on when making the adhesive sticky?
The adhesive is the main component of pigment printing paste, which is polymerized by various monomers. The pigment is cemented on the fabric through film-forming. The film-forming performance directly affects the fastness and printing performance of the printed fabric. The commonly used adhesive is O/W emulsion that is, the inner phase is polymer particles, the outer phase is water, under certain conditions can film on the fabric. The film formation process is generally through water evaporation, emulsion polymer molecules mutual penetration and diffusion, after emulsion particle deformation and mutual film formation. The film-forming time of emulsion adhesive has an optimal film-forming time which is the shortest time needed for water evaporation and particle deformation. If the film-forming time is too fast, it will make the pigment paste stick to the roller of printing equipment block the screen, which is not conducive to printing or even causes the use of it.
① Clean the surface：The results are best when the surface area is clean, meaning 100% free of dirt, oil, and debris in order to make direct contact with the adhesive.
② Clean hands：If your hands are greasy or dirty, they can break the adhesive force of the tape. If you have used oil or applied lotion recently, the grease will stick to the tape and break its stickiness. Also, dirt and mud can get between the surface and the adhesive and break the bond.
In the context of energy conservation and environmental protection, the development of textile coating printing is getting better and better, in order to gradually replace the production of sewage, the high energy consumption of the dye printing process. The superiority of coating printing is particularly prominent, which has become the mainstream development of textile printing at home and abroad.
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