Use printing ink of ability in swimming to presswork the skill of corrugated pap
From;    Author:Stand originally

Printing ink of ability in swimming applies at corrugated paper presswork, there already was quite long time in abroad, home also has 20 old. Corrugated paper pressworks is by letterpress printing (protruding imprints) , offset print (smooth imprint) , rubber edition water can be washed presswork, development is become today's flexible printing ink of ability in swimming of relief printing plate pressworks. Flexible printing ink of ability in swimming of relief printing plate also from colophony, tree of Ma Lai acerbity modified points to series (cheap) develop acrylic colophony set (high-grade) . Presswork edition material also transfers to colophony edition from rubber edition. Printing machine also develops gradually from the monochromatic of big stick tube or double lubricious machine trichromatic or 4 kinds ELEXO machine. Mesh annulus also by roller of 150-200 purpose metal work up arrives roller of 180-250 purpose pottery and porcelain. As presswork use skill of printing ink of technical change quickly, ability in swimming is quite fundamental. Before the author is discussing the use skill of printing ink of ability in swimming, we should know the character of printing ink of ability in swimming and the relation of all sorts of elements in pressworking and effect above all, wait like element of personnel of element of Chinese ink of edition material element, paper element, mesh annulus element, mechanical element, water, operation.

1. corrugated paper pressworks those who use printing ink of ability in swimming is characteristic

Printing ink of ability in swimming is two kinds to cent greatly: ① colophony, series of Ma Lai acerbity modified resin (cheap) ; Series of ② acrylic colophony (high-grade) .

2. is right the requirement of printing ink of ability in swimming

After ① deposits precipitation for a long time, disperse very easily again via answering after agitate;

② should have performance of good going from place to place and viscosity;

③ has stability of good keep in storage;

④ dull performance wants fast and appropriate;

⑤ cannot have any undesirable effects to forme and printing machine;

⑥ cannot have too big excitant taste.

Parameter of technology of printing ink of 3. ability in swimming

① color: As approximate as standard edition (note: check appearance and disconnect of standard type close the ground is moved with the hand exhibit color annulus to exhibit colour contrast) ;

② is fineness: Be less than 20um, instrument: 0-50um scraper is fineness plan;

③ viscosity: 20 ± 5s, instrument: RIGOSHA4# cup (25 ℃ ) ;

④ PH is worth: 8.0-9.5 instrument: Portable PH appearance (PHB, 2 model) ;

Content of ⑤ heavy metal: Accord with the world to pack standard of green environmental protection;

⑥ each are patiently: Accord with a requirement.

Use correctly of printing ink of 4. ability in swimming ask

Sufficient agitate is needed before ① is used, maintain Shui Mocheng cent is even;
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