Screen printing technology - plate making

the edition that manuscript along with has engraved, put the bedplate that deciding good rule to go up, put down webby casing, in the isinglass edition that has engraved with electric iron alignment above silk screen quadrilateral edge decides a dot to iron very hot, let isinglass edition stick very hot in silk screen manuscript pattern is uncovered after going up.
Some of thick hard paper is put on bedplate, put down webby casing to make isinglass engraves edition paper level up to rectify, enclothe one Zhang Ju ester on silk screen again despise diaphragm radical has removed effect, iron back and forth with electric iron iron a few times, make isinglass film irons very hot go up in silk screen.
Its nature lets fully dry after superior edition, uncover mount next and besmear the opposite of edition and mount interval trace of brushed too chloric ethylene is swabbed clean with annulus ketone.
If edition desquamation place can use filling prison of glacial acetic acid, if have the desquamation of the knife mark with conterminous blade and petty stroke, usable brush dips in isinglass fluid is repaired.
3, the edition on paper of paint film of nitro- varnish modified
Of paper of paint film of nitro- varnish modified go up edition method ibid.
(5) block
Block be about to the silk screen beyond webby graph article is stuck with colloid rise, chinese ink does not leak when making forme is pressworking. Block of edition of paint film of dried meat gram can use nitro- varnish, isinglass fluid can seal edition of isinglass paint film and edition of paint film of nitro- varnish modified. After the forme doing after been seal is appeared, can presswork.

2, plate making of silk screen of sensitive printing down
(one) recipe of sensitive printing down and make
1. Recipe of glue of sensitization of isinglass chromic salt and make
Recipe
Fancy isinglass 180 grams
Red vitriol Potassium 30 grams
Clear water 1000 milliliter
Heavy chromic acerbity ammonium 10 grams
Citric acid 10 grams
Vitriolic barium 10 grams
Alcohol 25 milliliter
Ammonia water 55 milliliter
Operation
Add afore-mentioned drug thermosol solution to filter, go up at edition of silk screen of 260 eye nylon in the besmear in darkroom, after waiting for natural air, reserve.
2, recipe of fluid of sensitization of polyvinyl alcohol chromic salt and make
Recipe
Armour fluid
Polyvinyl alcohol 40 grams
Acerbity natrium of sulfur of 12 alkyl benzene 0.5 grams
Glacial acetic acid 4 milliliter
Water 250 milliliter
Second fluid
Heavy chromic acerbity ammonium 5 grams
Water 30 milliliter
Dawn is red a few
Get together ester of acetic acid ethylene (or join 2 fourth ester 4 milliliter) 40 milliliter
Operation
Polyvinyl alcohol is chosen 1788, degree of polymerization is 1700, saponification is spent for 88% for beautiful.
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