Tong Gang electrical degree of acid from the pinhole how to do-Iota

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Service > Tong Gang electrical degree of acid from the pinhole how to do

Tong Gang electrical degree of acid from the pinhole how to do

UV Varnish dumb film silk screen printing industry is now more common UV a product, the amount is relatively large. I would like to offer a suggestion here recipes, we can discuss it, hoping to give prawn help.
Material proportion
Modified epoxy acrylic resin DH-205/207 50--56
Active ammonia DH - P115 5--18 1173/184/651 / BP 5 --- 8
Reactive diluent 30 --- 35
Defoamers 0.8--1.5
Leveling agent 0.5 ---- 1
This recipe only synthetic varnish has excellent adhesion, flexibility and gloss.

The main components of UV ink is polymerizable prepolymers, photosensitive monomer, a photoinitiator, an auxiliary component is a coloring pigment, filler, additives (leveling agent, antifoaming agent, polymerization inhibitor) and the like.
① polymerizable prepolymer
Polymerizable prepolymer is to determine the performance of UV varnish coating an important component of the general classification according to the skeletal structure. Skeletal structure on coating hardness, abrasion resistance, adhesion resistance, light resistance, chemical resistance and water resistance.
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[hide] is the main component of the polymerizable UV ink prepolymers, photosensitive monomer, a photoinitiator, an auxiliary component is a coloring pigment, filler, additives (leveling agent, antifoaming agent, polymerization inhibitor) and the like.
① polymerizable prepolymer
Polymerizable prepolymer is to determine the performance of UV varnish coating an important component of the general classification according to the skeletal structure. Skeletal structure on coating hardness, abrasion resistance, adhesion resistance, light resistance, chemical resistance and water resistance.
Prepolymer mainly epoxy acrylate resin, urethane acrylate resins, polyester acrylate resins, polyether acrylate resins, polyacrylic acid ester, unsaturated polyester resin, a resin such as several types.
② photosensitive monomer (reactive diluent)
UV ink and UV varnish at the time of coating need to adapt the viscosity of the coating machine, typically by adding 20% to 80% of the monomer to reduce the viscosity of the prepolymer, and polymerizing the monomer itself, become cured film part of it. When selecting the monomer to the following principles:
. a low viscosity, good dilution effect;
. b fast curing;
. c has a good adhesion to the material;
. d skin irritation, toxicity;
e. In the coating does not leave odors.
③ photoinitiator
Role photoinitiators which absorb ultraviolet light energy, generate free radicals, the ink undergo polymerization. Select photoinitiator should follow the following principles:
. a right amount of light absorbed by the UV range of high efficiency;
. b relative stability;
. d with the prepolymer, a monomer and good compatibility;
. e odor;
f. low cost.
The following example describes several UV ink formulations.
UV letterpress ink formulations
Letterpress UV ink on its composition, the web offset printing with UV ink formulation was similar, except that the former is low viscosity, the rheology of the ink which does not require strict. Now its general formula, for example as follows.
UV letterpress ink formulations:
Name Percent (wt%)

Epoxy diacrylate 18
Adjustment resin 15
Reactive monomer 30
Benzophenone 8
Triethanolamine 3
Pigments 22
Polyethylene wax 2
Bentonite 2
Total 100
Metal and polypropylene with UV waterless ink formulations
Metal with waterless UV ink:
Name Percent (wt%)
Epoxy diacrylate 40
Urethane diacrylate 18
Phthalocyanine green 18
Two arylamide Yellow 2
Benzophenone 6
Isopropyl thioxanthone 4
Polyethylene wax 6
Teflon wax 1
Quantacure EPD (trade name) 5
Total 100
The ink used in beer cans, beverage cans and spray cans of waterless offset.
UV inkjet printing ink formulations
UV inkjet printing inks:
Name Percent (wt%)
Trimethylol propane triacrylate 50
Dimethylphenyl acetyl

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