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    How To Solve The Problem Of Natural Fiber Pfer Printing

    2010/7/24 15:52:00 37

    Natural Fiber

    Due to pfer

    printing

    It has many advantages, and the products produced are also of great commercial value.

    So it has been developing rapidly since it was put into production in 1960s, but it is only applicable to the more obvious glass pition temperature.

    Synthetic fiber

    Therefore, development is hindered and can not be applied to natural fibers.

    How to solve

    Natural fiber

    The issue of pfer printing has become a hot topic both at home and abroad.


    So far, the main solutions are as follows:


    (1) graft denaturation, such as acetylation and benzoylation.

    In this way, the fibers will be able to accept disperse dyes.


    (2) surface polymerization.

    This method is to polymerized polymer materials on the surface of fabric, so as to receive disperse dyes such as polyester, styrene and so on.


    (3) fiber expansion.

    The expansion of the pet's heated amorphous region is simulated and the disperse dye gas is entered.

    However, due to the lack of fiber fixation, the fastness is not enough.

    So this method can only be combined with other "fixed" dyes.

    Fiber puffing generally uses polyethylene glycol (relative molecular mass 200). It is not only a swelling agent for cotton fibers, but also a solvent for disperse dyes.


    Above all, the common thing is that natural fiber fabrics must be pre treated before pfer printing, which increases the production process and production cost.

    More importantly, in order to clean the remaining unwanted substances on the fabric must be washed and dried, so that we can not eliminate the waste water discharge and increase the consumption of heat energy, so it is difficult to get rid of the heavy burden of traditional printing and dyeing production.


    This natural fiber pfer printing method does not retain the characteristics of the synthetic fiber pfer printing method and is hard to be accepted by the manufacturer.

    Some methods still contain harmful substances such as formaldehyde and so on, which do not meet the requirements of environmental protection.

    And the printed fabric, more than a long stroke, causes the blurred pattern.

    Therefore, although this method has been applied, it is not ideal at all.

    Some of them also use local spray pretreatment liquid in natural fiber clothing and print after drying.

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