CN104789038A - Screen printing technique - Google Patents
Screen printing technique Download PDFInfo
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- CN104789038A CN104789038A CN201510206328.3A CN201510206328A CN104789038A CN 104789038 A CN104789038 A CN 104789038A CN 201510206328 A CN201510206328 A CN 201510206328A CN 104789038 A CN104789038 A CN 104789038A
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- screen printing
- methyl
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- acetone
- hydroxy
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- 238000007650 screen-printing Methods 0.000 title claims abstract description 87
- 238000000034 method Methods 0.000 title claims abstract description 30
- CSCPPACGZOOCGX-UHFFFAOYSA-N acetone Substances CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims abstract description 118
- -1 polydimethylsiloxane Polymers 0.000 claims abstract description 48
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 claims abstract description 33
- 239000004205 dimethyl polysiloxane Substances 0.000 claims abstract description 25
- 229920000435 poly(dimethylsiloxane) Polymers 0.000 claims abstract description 25
- KCTAWXVAICEBSD-UHFFFAOYSA-N prop-2-enoyloxy prop-2-eneperoxoate Chemical compound C=CC(=O)OOOC(=O)C=C KCTAWXVAICEBSD-UHFFFAOYSA-N 0.000 claims abstract description 23
- 239000004698 Polyethylene Substances 0.000 claims abstract description 20
- 229920000573 polyethylene Polymers 0.000 claims abstract description 20
- 238000007639 printing Methods 0.000 claims abstract description 14
- 238000006116 polymerization reaction Methods 0.000 claims description 31
- LJRSZGKUUZPHEB-UHFFFAOYSA-N 2-[2-(2-prop-2-enoyloxypropoxy)propoxy]propyl prop-2-enoate Chemical compound C=CC(=O)OC(C)COC(C)COC(C)COC(=O)C=C LJRSZGKUUZPHEB-UHFFFAOYSA-N 0.000 claims description 22
- UHESRSKEBRADOO-UHFFFAOYSA-N ethyl carbamate;prop-2-enoic acid Chemical compound OC(=O)C=C.CCOC(N)=O UHESRSKEBRADOO-UHFFFAOYSA-N 0.000 claims description 22
- JPSIUEJLDNCSHS-UHFFFAOYSA-N propane;prop-2-enoic acid Chemical compound CCC.OC(=O)C=C JPSIUEJLDNCSHS-UHFFFAOYSA-N 0.000 claims description 22
- 150000001298 alcohols Chemical class 0.000 claims description 20
- 229920001577 copolymer Polymers 0.000 claims description 19
- 238000009281 ultraviolet germicidal irradiation Methods 0.000 claims description 15
- 239000000463 material Substances 0.000 claims description 10
- 238000001035 drying Methods 0.000 claims description 9
- 239000000758 substrate Substances 0.000 claims description 6
- 238000013019 agitation Methods 0.000 claims description 5
- 238000007603 infrared drying Methods 0.000 claims description 5
- 239000007788 liquid Substances 0.000 claims description 5
- 239000000155 melt Substances 0.000 claims description 5
- 238000002360 preparation method Methods 0.000 claims description 5
- 238000003756 stirring Methods 0.000 claims description 5
- 238000004383 yellowing Methods 0.000 abstract description 12
- 230000037303 wrinkles Effects 0.000 abstract description 9
- 230000000694 effects Effects 0.000 abstract description 7
- 239000010410 layer Substances 0.000 abstract 3
- 230000002349 favourable effect Effects 0.000 abstract 2
- 230000001678 irradiating effect Effects 0.000 abstract 2
- ZDQNWDNMNKSMHI-UHFFFAOYSA-N 1-[2-(2-prop-2-enoyloxypropoxy)propoxy]propan-2-yl prop-2-enoate Chemical compound C=CC(=O)OC(C)COC(C)COCC(C)OC(=O)C=C ZDQNWDNMNKSMHI-UHFFFAOYSA-N 0.000 abstract 1
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 abstract 1
- 239000004721 Polyphenylene oxide Substances 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 abstract 1
- USWPWIPUYQMVDO-UHFFFAOYSA-N methanol propane prop-2-enoic acid Chemical compound CO.CO.CO.CCC.OC(=O)C=C.OC(=O)C=C.OC(=O)C=C USWPWIPUYQMVDO-UHFFFAOYSA-N 0.000 abstract 1
- 229920000570 polyether Polymers 0.000 abstract 1
- 229920001296 polysiloxane Polymers 0.000 abstract 1
- 229920002635 polyurethane Polymers 0.000 abstract 1
- 239000004814 polyurethane Substances 0.000 abstract 1
- 239000002344 surface layer Substances 0.000 abstract 1
- 238000007711 solidification Methods 0.000 description 5
- 230000008023 solidification Effects 0.000 description 5
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 4
- 229910052753 mercury Inorganic materials 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 150000003254 radicals Chemical class 0.000 description 2
- 239000011230 binding agent Substances 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 210000005252 bulbus oculi Anatomy 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000003085 diluting agent Substances 0.000 description 1
- 125000000118 dimethyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 230000003760 hair shine Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000011087 paperboard Substances 0.000 description 1
- 230000000176 photostabilization Effects 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 230000035807 sensation Effects 0.000 description 1
- 229920002545 silicone oil Polymers 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D11/00—Inks
- C09D11/02—Printing inks
- C09D11/10—Printing inks based on artificial resins
- C09D11/101—Inks specially adapted for printing processes involving curing by wave energy or particle radiation, e.g. with UV-curing following the printing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M1/00—Inking and printing with a printer's forme
- B41M1/12—Stencil printing; Silk-screen printing
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D11/00—Inks
- C09D11/02—Printing inks
- C09D11/10—Printing inks based on artificial resins
- C09D11/102—Printing inks based on artificial resins containing macromolecular compounds obtained by reactions other than those only involving unsaturated carbon-to-carbon bonds
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Printing Methods (AREA)
- Inks, Pencil-Leads, Or Crayons (AREA)
Abstract
The invention relates to a screen printing technique which sequentially comprises the following steps: (1) manufacturing a screen printing plate; (2) installing the screen printing plate, adding an ultraviolet curing ink, and carrying out printing, wherein the ultraviolet curing ink is composed of polyurethane acrylate, epoxy acrylate, tripropylene glycol diacrylate, propane trimethanol triacrylate, 1,1'-(methylenedi-4,1-phenylene)bis[2-hydroxy-2-methyl-1-acetone], poly[2-hydroxy-2-methyl-1-[4-(1-methylvinyl)phenyl]acetone], polydimethylsiloxane, polyether modified polysiloxane and polyethylene wax; (3) irradiating under ultraviolet light with the wavelength of 200-300nm to cure the surface layer of the screen printing ink layer; and (4) irradiating under ultraviolet light with the wavelength of 360-400nm to cure the screen printing ink layer. The ink printing layer has wrinkle effect, and has favorable yellowing resistance and favorable folding endurance.
Description
Technical field
The present invention relates to printing process, be specifically related to a kind of silk-screen printing technique.
Background technology
UV silk-screen wrinkle technique is a kind of typography generally adopted in current printing industry, this technique by force ornamental, and printed matter can be made to have good metal sense, and visual impact is strong, can attract human consumer's eyeball, can improve the added value of printed matter.
But, the obvious defect of existing UV silk-screen wrinkle technique ubiquity one, when being namely applied in the more shallow paperboard of background color or ivory board, UV curable ink (UV ink) in printing after forming ink printed layer, if printed matter is shone under being placed on available light, (as 1 hour) will yellowing completely within very short time for its ink printed layer, anti-yellowing property extreme difference.And although some UV silk-screen wrinkle technique overcomes the problem of ink printed layer anti-yellowing property difference preferably, ink printed layer is more crisp, easily bursts during bending, and folding resistance is poor, and past contact has the problem that machine volatile matter exceeds standard.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of silk-screen printing technique, this silk-screen printing technique utilizes UV curable ink after printing, solidification, can form the ink printed layer with wrinkle effect, this ink printed layer has good anti-yellowing property and folding resistance.The technical scheme adopted is as follows:
A kind of silk-screen printing technique, is characterized in that comprising the steps: successively
(1) screen printing forme is made;
(2) screen printing forme made is installed on silk-screen printing device, and adds UV curable ink printing, form ink for screen printing layer on the substrate;
UV curable ink used is made up of the component of following weight proportioning: urethane acrylate 24-35%, epoxy acrylate 14-25%, tri (propylene glycol) diacrylate 15-25%, three vinylformic acid propane front three alcohol ester 15-25%, 1, 1'-(methylene radical two-4, 1-phenylene) two [2-hydroxy-2-methyl-1-acetone] 0.5-2.5%, polymerization [2-hydroxy-2-methyl-1-[4-(1-methyl ethylene) phenyl] acetone] 0.5-1.5%, polydimethylsiloxane 0.1-1%, Siloxane-Oxyalkylene Copolymers 0.1-1%, polyethylene wax 1-5%,
(3) utilize the UV-irradiation ink for screen printing layer that wavelength is 200-300 nanometer, the top layer of the ink for screen printing layer on stock is solidified;
(4) utilize the UV-irradiation ink for screen printing layer that wavelength is 360-400 nanometer, the ink for screen printing layer on stock is solidified, form ink printed layer.
In above-mentioned steps (1), ordinary method can be adopted to make screen printing forme.In preferred steps (1), 200-400 object silk screen is adopted to make screen printing forme; More preferably 350 object silk screens are adopted to make screen printing forme.
In above-mentioned steps (2), silk-screen printing device, printing process can adopt conventional screen-print device and method.
In above-mentioned steps (3), low pressure mercury lamp can be utilized to launch the UV-light of wavelength for 200-300 nanometer.
In preferred above-mentioned steps (3), time of the UV-irradiation ink for screen printing layer utilizing wavelength to be 200-300 nanometer is 0.5-1 second.
In above-mentioned steps (4), conventional UV lamp can be utilized to launch the UV-light of wavelength for 360-400 nanometer.
In preferred above-mentioned steps (4), time of the UV-irradiation ink for screen printing layer utilizing wavelength to be 360-400 nanometer is 0.05-0.1 second.
After above-mentioned steps (3) and step (4) ultraviolet light polymerization, the ink printed layer formed has wrinkle effect, its wrinkling principle is: after UV curable ink is printed onto and stock forms ink layer ink for screen printing layer, first utilize the UV-irradiation ink for screen printing layer that wavelength is 200-300 nanometer, because the UV-light of this wave band is completely absorbed on ink for screen printing layer top layer substantially, ink for screen printing layer bottom cannot be penetrated into, therefore produce cure shrinkage on ink for screen printing layer top layer and form wrinkle, but ink for screen printing layer bottom does not now react; Then utilize the UV-light that wavelength is 360-400 nanometer to irradiate ink for screen printing layer further, ink for screen printing layer is thoroughly solidified, form the ink printed layer with wrinkle effect.
In preferred version, above-mentioned silk-screen printing technique also comprises step (5), utilizes infrared drying equipment to carry out drying and processing to the stock being formed with ink printed layer, and the gas utilizing extractor fan to take away to be evaporated.More preferably, in step (5), bake out temperature is 100-140 DEG C.By drying by the acetone evaporated in ink printed layer out, and being taken away by extractor fan, greatly reducing the acetone content of printed matter, the problem that printed matter acetone exceeds standard can be solved well.
Above-mentioned urethane acrylate and epoxy acrylate are all the low-molecular-weight resins containing " C=C " unsaturated double-bond, it is the binder of UV curable ink, make ink can in stock dry, set film forming on the surface after printing, both ink printed layer (being commonly called as ink film) that solidification is formed afterwards that combinationally uses have splendid rub resistance, tack, photostabilization, chemical-resistant, and higher hardness.
Above-mentioned tri (propylene glycol) diacrylate and three vinylformic acid propane front three alcohol esters are as the reaction diluent of UV curable ink, can ink viscosity be reduced, play dissemination, and participate in the curing reaction of UV ink, the curing speed of UV ink can be improved, strengthen the sticking power of ink printed layer.
The structural formula of above-mentioned 1,1'-(methylene radical two-4,1-phenylene) two [2-hydroxy-2-methyl-1-acetone] is:
In above-mentioned UV curable ink, 1, 1'-(methylene radical two-4, 1-phenylene) two [2-hydroxy-2-methyl-1-acetone], polymerization [2-hydroxy-2-methyl-1-[4-(1-methyl ethylene) phenyl] acetone] is common as light trigger, wherein, poly-[2-hydroxy-2-methyl-1-[4-(1-methyl ethylene) phenyl] acetone] is ultra etiolation-resistance light trigger, ink printed layer is made to have preferably anti-yellowing property, 1, 1'-(methylene radical two-4, 1-phenylene) two [2-hydroxy-2-methyl-1-acetone] then reactive behavior is lower, the folding resistance of kind ink printed layer can be improved.Under the irradiation of UV-light, light trigger (1, 1'-(methylene radical two-4, 1-phenylene) two [2-hydroxy-2-methyl-1-acetone] and polymerization [2-hydroxy-2-methyl-1-[4-(1-methyl ethylene) phenyl] acetone]) absorb energy generation free radical, free radical is under high speed activities, with urethane acrylate, epoxy acrylate, tri (propylene glycol) diacrylate, three vinylformic acid propane front three alcohol esters produce collision, by transmission ofenergy to urethane acrylate, epoxy acrylate, tri (propylene glycol) diacrylate, three vinylformic acid propane front three alcohol esters, it is made to open double bond, carry out cross linking reaction and solidification.By 1,1'-(methylene radical two-4,1-phenylene) two [2-hydroxy-2-methyl-1-acetone] and poly-[2-hydroxy-2-methyl-1-[4-(1-methyl ethylene) phenyl] acetone] add in ink jointly, and the ink printed layer formed after can making this UV curable ink printing has good anti-yellowing property and folding resistance simultaneously.
The molecular formula of preferred above-mentioned polydimethylsiloxane (i.e. dimethyl silicone oil) is (CH
3)
3siO [(CH
3)
2siO]
nsi (CH
3)
3, wherein n is the natural number of 5-100.Above-mentioned polydimethylsiloxane can prevent ink layer from occurring grow diming phenomenon.
The Main Function of above-mentioned Siloxane-Oxyalkylene Copolymers reduces surface tension, and wetting ground, better anti-shrinkage cavity, improve the flow leveling of layer of ink, and can play froth breaking effect.
Above-mentioned polyethylene wax can improve the wear resistance of ink, and can play photoextinction, makes ink printed layer have better gloss and stereoscopic sensation.
The preparation method of preferred above-mentioned UV curable ink comprises the steps:
(1 ') is equipped with urethane acrylate, epoxy acrylate, tri (propylene glycol) diacrylate, three vinylformic acid propane front three alcohol esters, 1 in proportion, 1'-(methylene radical two-4,1-phenylene) two [2-hydroxy-2-methyl-1-acetone], polymerization [2-hydroxy-2-methyl-1-[4-(1-methyl ethylene) phenyl] acetone], polydimethylsiloxane, Siloxane-Oxyalkylene Copolymers and polyethylene wax;
Urethane acrylate, epoxy acrylate, tri (propylene glycol) diacrylate and three vinylformic acid propane front three alcohol esters are put into baking oven by (2 '), are heated to 50-80 DEG C, for subsequent use;
(3 ') is respectively by 1, 1'-(methylene radical two-4, 1-phenylene) two [2-hydroxy-2-methyl-1-acetone], polymerization [2-hydroxy-2-methyl-1-[4-(1-methyl ethylene) phenyl] acetone] melts for liquid at the temperature of 80-120 DEG C, then by 1, 1'-(methylene radical two-4, 1-phenylene) two [2-hydroxy-2-methyl-1-acetone] and polymerization [2-hydroxy-2-methyl-1-[4-(1-methyl ethylene) phenyl] acetone] mix and stir, make 1, 1'-(methylene radical two-4, 1-phenylene) two [2-hydroxy-2-methyl-1-acetone] and polymerization [2-hydroxy-2-methyl-1-[4-(1-methyl ethylene) phenyl] acetone] mix, for subsequent use,
The polydimethylsiloxane that step (1 ') is equipped with by (4 '), Siloxane-Oxyalkylene Copolymers and polyethylene wax, and step (2 ') material for subsequent use, step (3 ') material for subsequent use adds in agitation vat, and be stirred to and mix, obtain UV curable ink.
In above-mentioned steps (2 '), through heating, the viscosity of urethane acrylate, epoxy acrylate, tri (propylene glycol) diacrylate and three vinylformic acid propane front three alcohol esters can be reduced, strengthen its mobility.
The present invention utilizes UV curable ink after silk screen printing, solidification, can form the ink printed layer with wrinkle effect, this ink printed layer has good anti-yellowing property, inhibited from yellowing by solarization under light, there is good folding resistance simultaneously, during bending, not easily Decrepitation Phenomena occurs.
Embodiment
Embodiment 1
The silk-screen printing technique of the present embodiment comprises the steps: successively
(1) screen printing forme is made;
In this step (1), 350 object silk screens are adopted to make screen printing forme;
(2) screen printing forme made is installed on silk-screen printing device, and adds UV curable ink printing, form ink for screen printing layer on the substrate;
(3) the UV-irradiation ink for screen printing layer (irradiation time is 0.6 second) utilizing wavelength to be 200-300 nanometer, makes the top layer of the ink for screen printing layer on stock solidify;
In this step (3), low pressure mercury lamp is utilized to launch the UV-light of wavelength for 200-300 nanometer;
(4) the UV-irradiation ink for screen printing layer (irradiation time is 0.06 second) utilizing wavelength to be 360-400 nanometer, makes the ink for screen printing layer on stock solidify, and forms ink printed layer;
In this step (4), conventional UV lamp can be utilized to launch the UV-light of wavelength for 360-400 nanometer;
(5) infrared drying equipment is utilized to carry out drying and processing to the stock being formed with ink printed layer, and the gas utilizing extractor fan to take away to be evaporated.
In this step (5), bake out temperature is 120 DEG C, by drying by the acetone evaporated in ink printed layer out, and being taken away by extractor fan, greatly reducing the acetone content of printed matter.
The preparation method of the UV curable ink that the present embodiment is used comprises the steps:
(1 ') is equipped with urethane acrylate, epoxy acrylate, tri (propylene glycol) diacrylate, three vinylformic acid propane front three alcohol esters, 1 by following part by weight, 1'-(methylene radical two-4,1-phenylene) two [2-hydroxy-2-methyl-1-acetone], polymerization [2-hydroxy-2-methyl-1-[4-(1-methyl ethylene) phenyl] acetone], (molecular formula of polydimethylsiloxane is (CH to polydimethylsiloxane
3)
3siO [(CH
3)
2siO]
nsi (CH
3)
3wherein n is the natural number of 5-100), Siloxane-Oxyalkylene Copolymers and polyethylene wax: urethane acrylate 30%, epoxy acrylate 20.5%, tri (propylene glycol) diacrylate 20%, three vinylformic acid propane front three alcohol esters 20%, 1,1'-(methylene radical two-4,1-phenylene) two [2-hydroxy-2-methyl-1-acetone] 2.5%, polymerization [2-hydroxy-2-methyl-1-[4-(1-methyl ethylene) phenyl] acetone] 1%, polydimethylsiloxane 0.5%, Siloxane-Oxyalkylene Copolymers 0.5%, polyethylene wax 5%;
Urethane acrylate, epoxy acrylate, tri (propylene glycol) diacrylate and three vinylformic acid propane front three alcohol esters are put into baking oven by (2 '), are heated to 60 DEG C, for subsequent use;
(3 ') is respectively by 1, 1'-(methylene radical two-4, 1-phenylene) two [2-hydroxy-2-methyl-1-acetone], polymerization [2-hydroxy-2-methyl-1-[4-(1-methyl ethylene) phenyl] acetone] melts for liquid at the temperature of 100 DEG C, then by 1, 1'-(methylene radical two-4, 1-phenylene) two [2-hydroxy-2-methyl-1-acetone] and polymerization [2-hydroxy-2-methyl-1-[4-(1-methyl ethylene) phenyl] acetone] mix and stir, make 1, 1'-(methylene radical two-4, 1-phenylene) two [2-hydroxy-2-methyl-1-acetone] and polymerization [2-hydroxy-2-methyl-1-[4-(1-methyl ethylene) phenyl] acetone] mix, for subsequent use,
The polydimethylsiloxane that step (1 ') is equipped with by (4 '), Siloxane-Oxyalkylene Copolymers and polyethylene wax, and step (2 ') material for subsequent use, step (3 ') material for subsequent use adds in agitation vat, and be stirred to and mix, obtain UV curable ink.
The UV curable ink obtained is made up of the component of following weight proportioning: urethane acrylate 30%; Epoxy acrylate 20.5%; Tri (propylene glycol) diacrylate 20%; Three vinylformic acid propane front three alcohol esters 20%; Two [the 2-hydroxy-2-methyl-1-acetone] 2.5% of 1,1'-(methylene radical two-4,1-phenylene); Polymerization [2-hydroxy-2-methyl-1-[4-(1-methyl ethylene) phenyl] acetone] 1%; Polydimethylsiloxane 0.5%; Siloxane-Oxyalkylene Copolymers 0.5%; Polyethylene wax 5%.
Embodiment 2
The silk-screen printing technique of the present embodiment comprises the steps: successively
(1) screen printing forme is made;
In this step (1), 300 object silk screens are adopted to make screen printing forme;
(2) screen printing forme made is installed on silk-screen printing device, and adds UV curable ink printing, form ink for screen printing layer on the substrate;
(3) the UV-irradiation ink for screen printing layer (irradiation time is 0.8 second) utilizing wavelength to be 200-300 nanometer, makes the top layer of the ink for screen printing layer on stock solidify, and forms ink printed layer;
In this step (3), low pressure mercury lamp can be utilized to launch the UV-light of wavelength for 200-300 nanometer;
(4) the UV-irradiation ink for screen printing layer (irradiation time is 0.08 second) utilizing wavelength to be 360-400 nanometer, makes the ink for screen printing layer on stock solidify;
In this step (4), conventional UV lamp can be utilized to launch the UV-light of wavelength for 360-400 nanometer;
(5) infrared drying equipment is utilized to carry out drying and processing to the stock being formed with ink printed layer, and the gas utilizing extractor fan to take away to be evaporated.
In this step (5), bake out temperature is 100 DEG C, by drying by the acetone evaporated in ink printed layer out, and being taken away by extractor fan, greatly reducing the acetone content of printed matter.
The preparation method of the UV curable ink that the present embodiment is used comprises the steps:
(1 ') is equipped with urethane acrylate, epoxy acrylate, tri (propylene glycol) diacrylate, three vinylformic acid propane front three alcohol esters, 1 by following part by weight, 1'-(methylene radical two-4,1-phenylene) two [2-hydroxy-2-methyl-1-acetone], polymerization [2-hydroxy-2-methyl-1-[4-(1-methyl ethylene) phenyl] acetone], (molecular formula of polydimethylsiloxane is (CH to polydimethylsiloxane
3)
3siO [(CH
3)
2siO]
nsi (CH
3)
3wherein n is the natural number of 5-100), Siloxane-Oxyalkylene Copolymers and polyethylene wax: urethane acrylate 35%, epoxy acrylate 15%, tri (propylene glycol) diacrylate 18.9%, three vinylformic acid propane front three alcohol esters 25%, 1,1'-(methylene radical two-4,1-phenylene) two [2-hydroxy-2-methyl-1-acetone] 1.5%, polymerization [2-hydroxy-2-methyl-1-[4-(1-methyl ethylene) phenyl] acetone] 0.5%, polydimethylsiloxane 1%, Siloxane-Oxyalkylene Copolymers 0.1%, polyethylene wax 3%;
Urethane acrylate, epoxy acrylate, tri (propylene glycol) diacrylate and three vinylformic acid propane front three alcohol esters are put into baking oven by (2 '), are heated to 50 DEG C, for subsequent use;
(3 ') is respectively by 1, 1'-(methylene radical two-4, 1-phenylene) two [2-hydroxy-2-methyl-1-acetone], polymerization [2-hydroxy-2-methyl-1-[4-(1-methyl ethylene) phenyl] acetone] melts for liquid at the temperature of 120 DEG C, then by 1, 1'-(methylene radical two-4, 1-phenylene) two [2-hydroxy-2-methyl-1-acetone] and polymerization [2-hydroxy-2-methyl-1-[4-(1-methyl ethylene) phenyl] acetone] mix and stir, make 1, 1'-(methylene radical two-4, 1-phenylene) two [2-hydroxy-2-methyl-1-acetone] and polymerization [2-hydroxy-2-methyl-1-[4-(1-methyl ethylene) phenyl] acetone] mix, for subsequent use,
The polydimethylsiloxane that step (1 ') is equipped with by (4 '), Siloxane-Oxyalkylene Copolymers and polyethylene wax, and step (2 ') material for subsequent use, step (3 ') material for subsequent use adds in agitation vat, and be stirred to and mix, obtain UV curable ink.
The UV curable ink obtained is made up of the component of following weight proportioning: urethane acrylate 35%, epoxy acrylate 15%, tri (propylene glycol) diacrylate 18.9%, three vinylformic acid propane front three alcohol esters 25%, 1,1'-(methylene radical two-4,1-phenylene) two [2-hydroxy-2-methyl-1-acetone] 1.5%, polymerization [2-hydroxy-2-methyl-1-[4-(1-methyl ethylene) phenyl] acetone] 0.5%, polydimethylsiloxane 1%, Siloxane-Oxyalkylene Copolymers 0.1%, polyethylene wax 3%.
Embodiment 3
The silk-screen printing technique of the present embodiment comprises the steps: successively
(1) screen printing forme is made;
In this step (1), 400 object silk screens are adopted to make screen printing forme;
(2) screen printing forme made is installed on silk-screen printing device, and adds UV curable ink printing, form ink for screen printing layer on the substrate;
(3) the UV-irradiation ink for screen printing layer (irradiation time is 1 second) utilizing wavelength to be 200-300 nanometer, makes the top layer of the ink for screen printing layer on stock solidify;
In this step (3), low pressure mercury lamp can be utilized to launch the UV-light of wavelength for 200-300 nanometer;
(4) the UV-irradiation ink for screen printing layer (irradiation time is 0.1 second) utilizing wavelength to be 360-400 nanometer, makes the ink for screen printing layer on stock solidify, and forms ink printed layer;
In this step (4), conventional UV lamp can be utilized to launch the UV-light of wavelength for 360-400 nanometer;
(5) infrared drying equipment is utilized to carry out drying and processing to the stock being formed with ink printed layer, and the gas utilizing extractor fan to take away to be evaporated.
In this step (5), bake out temperature is 140 DEG C, by drying by the acetone evaporated in ink printed layer out, and being taken away by extractor fan, greatly reducing the acetone content of printed matter.
The preparation method of the UV curable ink that the present embodiment is used comprises the steps:
(1 ') is equipped with urethane acrylate, epoxy acrylate, tri (propylene glycol) diacrylate, three vinylformic acid propane front three alcohol esters, 1 by following part by weight, 1'-(methylene radical two-4,1-phenylene) two [2-hydroxy-2-methyl-1-acetone], polymerization [2-hydroxy-2-methyl-1-[4-(1-methyl ethylene) phenyl] acetone], (molecular formula of polydimethylsiloxane is (CH to polydimethylsiloxane
3)
3siO [(CH
3)
2siO]
nsi (CH
3)
3wherein n is the natural number of 5-100), Siloxane-Oxyalkylene Copolymers and polyethylene wax: urethane acrylate 25%, epoxy acrylate 25%, tri (propylene glycol) diacrylate 25%, three vinylformic acid propane front three alcohol esters 21%, 1,1'-(methylene radical two-4,1-phenylene) two [2-hydroxy-2-methyl-1-acetone] 0.5%, polymerization [2-hydroxy-2-methyl-1-[4-(1-methyl ethylene) phenyl] acetone] 1.5%, polydimethylsiloxane 0.1%, Siloxane-Oxyalkylene Copolymers 0.9%, polyethylene wax 1%;
Urethane acrylate, epoxy acrylate, tri (propylene glycol) diacrylate and three vinylformic acid propane front three alcohol esters are put into baking oven by (2 '), are heated to 80 DEG C, for subsequent use;
(3 ') is respectively by 1, 1'-(methylene radical two-4, 1-phenylene) two [2-hydroxy-2-methyl-1-acetone], polymerization [2-hydroxy-2-methyl-1-[4-(1-methyl ethylene) phenyl] acetone] melts for liquid at the temperature of 80 DEG C, then by 1, 1'-(methylene radical two-4, 1-phenylene) two [2-hydroxy-2-methyl-1-acetone] and polymerization [2-hydroxy-2-methyl-1-[4-(1-methyl ethylene) phenyl] acetone] mix and stir, make 1, 1'-(methylene radical two-4, 1-phenylene) two [2-hydroxy-2-methyl-1-acetone] and polymerization [2-hydroxy-2-methyl-1-[4-(1-methyl ethylene) phenyl] acetone] mix, for subsequent use,
The polydimethylsiloxane that step (1 ') is equipped with by (4 '), Siloxane-Oxyalkylene Copolymers and polyethylene wax, and step (2 ') material for subsequent use, step (3 ') material for subsequent use adds in agitation vat, and be stirred to and mix, obtain UV curable ink.
The UV curable ink obtained is made up of the component of following weight proportioning: urethane acrylate 25%, epoxy acrylate 25%, tri (propylene glycol) diacrylate 25%, three vinylformic acid propane front three alcohol esters 21%, 1,1'-(methylene radical two-4,1-phenylene) two [2-hydroxy-2-methyl-1-acetone] 0.5%, polymerization [2-hydroxy-2-methyl-1-[4-(1-methyl ethylene) phenyl] acetone] 1.5%, polydimethylsiloxane 0.1%, Siloxane-Oxyalkylene Copolymers 0.9%, polyethylene wax 1%.
The ink printed layer that embodiment 1-3 is formed after utilizing UV curable ink silk screen printing on the substrate, solidification, obtain printed matter, test the anti-yellowing property of the ink printed layer on printed matter and folding resistance, its test result is as shown in following table 1 and table 2.
Table 1 anti-yellowing property test result
Table 2 folding resistance test result
As can be seen from Table 1, the ink printed layer that silk-screen printing technique of the present invention is formed, does not still see the phenomenon having flavescence after sun-proof instrument shines 13 hours.As can be seen from Table 2, the ink printed layer that silk-screen printing technique of the present invention is formed, after repeatedly folding, its burst still can not burst open, and folding resistance is good.As can be seen here, the ink printed layer that silk-screen printing technique of the present invention is formed has good anti-yellowing property and folding resistance.
Claims (7)
1. a silk-screen printing technique, is characterized in that comprising the steps: successively
(1) screen printing forme is made;
(2) screen printing forme made is installed on silk-screen printing device, and adds UV curable ink printing, form ink for screen printing layer on the substrate;
UV curable ink used is made up of the component of following weight proportioning: urethane acrylate 24-35%, epoxy acrylate 14-25%, tri (propylene glycol) diacrylate 15-25%, three vinylformic acid propane front three alcohol ester 15-25%, 1, 1'-(methylene radical two-4, 1-phenylene) two [2-hydroxy-2-methyl-1-acetone] 0.5-2.5%, polymerization [2-hydroxy-2-methyl-1-[4-(1-methyl ethylene) phenyl] acetone] 0.5-1.5%, polydimethylsiloxane 0.1-1%, Siloxane-Oxyalkylene Copolymers 0.1-1%, polyethylene wax 1-5%,
(3) utilize the UV-irradiation ink for screen printing layer that wavelength is 200-300 nanometer, the top layer of the ink for screen printing layer on stock is solidified;
(4) utilize the UV-irradiation ink for screen printing layer that wavelength is 360-400 nanometer, the ink for screen printing layer on stock is solidified, form ink printed layer.
2. silk-screen printing technique according to claim 1, is characterized in that: in described step (3), and time of the UV-irradiation ink for screen printing layer utilizing wavelength to be 200-300 nanometer is 0.5-1 second.
3. silk-screen printing technique according to claim 1, is characterized in that: in described step (4), and time of the UV-irradiation ink for screen printing layer utilizing wavelength to be 360-400 nanometer is 0.05-0.1 second.
4. the silk-screen printing technique according to any one of claim 1-3, it is characterized in that: described silk-screen printing technique also comprises step (5), infrared drying equipment is utilized to carry out drying and processing to the stock being formed with ink printed layer, and the gas utilizing extractor fan to take away to be evaporated.
5. silk-screen printing technique according to claim 4, is characterized in that: in described step (5), and bake out temperature is 100-140 DEG C.
6. silk-screen printing technique according to claim 1, is characterized in that: the molecular formula of described polydimethylsiloxane is (CH
3)
3siO [(CH
3)
2siO]
nsi (CH
3)
3, wherein n is the natural number of 5-100.
7. silk-screen printing technique according to claim 1, is characterized in that: the preparation method of described UV curable ink comprises the steps:
(1 ') is equipped with urethane acrylate, epoxy acrylate, tri (propylene glycol) diacrylate, three vinylformic acid propane front three alcohol esters, 1 in proportion, 1'-(methylene radical two-4,1-phenylene) two [2-hydroxy-2-methyl-1-acetone], polymerization [2-hydroxy-2-methyl-1-[4-(1-methyl ethylene) phenyl] acetone], polydimethylsiloxane, Siloxane-Oxyalkylene Copolymers and polyethylene wax;
Urethane acrylate, epoxy acrylate, tri (propylene glycol) diacrylate and three vinylformic acid propane front three alcohol esters are put into baking oven by (2 '), are heated to 50-80 DEG C, for subsequent use;
(3 ') is respectively by 1, 1'-(methylene radical two-4, 1-phenylene) two [2-hydroxy-2-methyl-1-acetone], polymerization [2-hydroxy-2-methyl-1-[4-(1-methyl ethylene) phenyl] acetone] melts for liquid at the temperature of 80-120 DEG C, then by 1, 1'-(methylene radical two-4, 1-phenylene) two [2-hydroxy-2-methyl-1-acetone] and polymerization [2-hydroxy-2-methyl-1-[4-(1-methyl ethylene) phenyl] acetone] mix and stir, make 1, 1'-(methylene radical two-4, 1-phenylene) two [2-hydroxy-2-methyl-1-acetone] and polymerization [2-hydroxy-2-methyl-1-[4-(1-methyl ethylene) phenyl] acetone] mix, for subsequent use,
The polydimethylsiloxane that step (1 ') is equipped with by (4 '), Siloxane-Oxyalkylene Copolymers and polyethylene wax, and step (2 ') material for subsequent use, step (3 ') material for subsequent use adds in agitation vat, and be stirred to and mix, obtain UV curable ink.
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| CN108059872A (en) * | 2016-11-08 | 2018-05-22 | 上海烟草集团有限责任公司 | A kind of dermatoglyph gravure ink and its surface finish technique for paper package box |
| CN111185354A (en) * | 2020-01-21 | 2020-05-22 | 广州市龙珠化工有限公司 | Ultraviolet curing method and application thereof |
| CN116179125A (en) * | 2022-12-02 | 2023-05-30 | 广东工业大学 | Transparent epoxy silk-screen printing adhesive and silk-screen printing bonding process |
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| CN101570089A (en) * | 2009-06-18 | 2009-11-04 | 广西真龙彩印包装有限公司 | Improved silk screen printing process and production line thereof |
| CN102732091A (en) * | 2011-03-29 | 2012-10-17 | 东洋油墨Sc控股株式会社 | Active energy ray-curable inkjet ink composition |
| CN104087063A (en) * | 2014-07-15 | 2014-10-08 | 苏州市明大高分子科技材料有限公司 | UV (ultraviolet) photo-curable dip-coating and coloring printing ink and preparation method thereof |
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| CN101570089A (en) * | 2009-06-18 | 2009-11-04 | 广西真龙彩印包装有限公司 | Improved silk screen printing process and production line thereof |
| CN102732091A (en) * | 2011-03-29 | 2012-10-17 | 东洋油墨Sc控股株式会社 | Active energy ray-curable inkjet ink composition |
| CN104087063A (en) * | 2014-07-15 | 2014-10-08 | 苏州市明大高分子科技材料有限公司 | UV (ultraviolet) photo-curable dip-coating and coloring printing ink and preparation method thereof |
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| CN108059872A (en) * | 2016-11-08 | 2018-05-22 | 上海烟草集团有限责任公司 | A kind of dermatoglyph gravure ink and its surface finish technique for paper package box |
| CN111185354A (en) * | 2020-01-21 | 2020-05-22 | 广州市龙珠化工有限公司 | Ultraviolet curing method and application thereof |
| CN116179125A (en) * | 2022-12-02 | 2023-05-30 | 广东工业大学 | Transparent epoxy silk-screen printing adhesive and silk-screen printing bonding process |
| CN116179125B (en) * | 2022-12-02 | 2023-09-08 | 广东工业大学 | Transparent epoxy silk-screen printing adhesive and silk-screen printing bonding process |
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