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Plastic printing products easy to produce the phenomenon and treatment

Plastic printing products easy to produce the phenomenon and treatment

2020-02-05


1.The cause of a back adhesion:

(1)the paste itself anti-viscosity, especially in the wet weather easy to stick back;

(2)After the printing is completed, it is packaged without perfect heat treatment;

(3)adjust the slurry formula is not appropriate, adding too much transparent slurry easy to cause back adhesion;

(4)transport or storage conditions are not good, in high temperature, high humidity conditions for a long time stack.


Treatment methods for back adhesion:

(1)choose good anti - sticky paste printing;
(2)Good heat treatment for printing products;
(3)Pay attention to the mixing formula, if the transparent pulp more than 80% is easy to cause back adhesion, so you can add an appropriate amount of curing agent or anti-adhesion agent for treatment;
(4)Please pay attention to the improvement of transportation and storage conditions.
(5)with anti - stick items to strengthen the whole processing.


2.Reasons for poor elasticity:

(1)The selection of sizing technology and printing fabric do not match;

(2)After printing drying treatment is not complete;

(3)too much crosslinking agent will affect the size of the elasticity and softness.

(4)add excessive destruction of resin tensile material (urea, ammonia).


3.Causes of color transfer phenomenon:

(1)when mixing the selection of color species poor resistance to migration;
(2)add excessive color species;
(3)printing products dry processing;

(4)transport or storage conditions are not good, in high temperature, high humidity conditions for a long time stack.


Treatment of color transfer phenomenon:

(1)selection of good color species resistant to migration to adjust the paste.
(2)Good heat treatment for printing products;
(3)In transportation and storage, as far as possible flat, do not fold together or with insulation paper.


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