CN105297542A - Method for irradiating and curing release paper isolation layer for leather - Google Patents
Method for irradiating and curing release paper isolation layer for leather Download PDFInfo
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- CN105297542A CN105297542A CN201510594018.3A CN201510594018A CN105297542A CN 105297542 A CN105297542 A CN 105297542A CN 201510594018 A CN201510594018 A CN 201510594018A CN 105297542 A CN105297542 A CN 105297542A
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Abstract
The invention relates to a method for irradiating and curing a release paper isolation layer for leather. The method comprises the following steps: preparing an isolation layer coating from 60 percent to 80 percent of carboxylic butadiene-styrene latex and sodium alcohol ether sulfate; preparing a release layer coating from polyvinyl siloxane, hydrogen-containing silicone oil, nano-grade white carbon black and the like; thermally curing pure wood pulp release raw paper by a coated isolation layer; entering a concave type coating knurling process and transferring the release coating to the paper by a coating roller; copying patterns on a knurling roller to the release paper. The release paper coated with the patterns is put into a transmission bundle rack of a low-energy electronic accelerator through a transmission roller to be radiated and cured to form the release paper. The release paper is processed by three phases including the coating of release layer of release paper, knurling, and radiation and curing in sequence; the method is convenient to operate and construct and has low energy consumption and high efficiency; the coating for coating the release layer does not contain any solvent and an active diluting agent is not added; the coating is not volatilized, is environmentally friendly, is safe and free of toxin and pollution. The release paper prepared by the method has high intensity, high-temperature resistance, solvent resistance, good soft hand feeling and good peeling effect.
Description
Technical field
The present invention relates to a kind of method of hardening with radiation leather release liners separation layer.
Background technology
In recent years, the main cause that electronic beam irradiation technology is able to sustainable development is its product quality and economic benefit advantage, compared with other curing modes, electronic beam curing substantially increases production efficiency, and the physical property of cured article is improved, and is a kind of cold curing technology, energy consumption is low, zero-emission can not, to environment, be a kind of novel environment friendly curing technology.
Release liners industry still turns to master with traditional thermosetting, also some companies are had to adopt UV or EB curing technology to realize radiation curing, but technology is still immature, a lot of place still needs to improve, present invention overcomes solidification in the past and produce the release liners drawn: peel strength is low, the shortcomings such as Reusability number of times is few, solvent resistance difference are very large progress.
Summary of the invention
The object of the invention is for above-mentioned present situation, aim to provide a kind of operation easy construction, energy consumption is low, and efficiency is high; Environmental friendliness, safety non-toxic is pollution-free; Obtained release liners intensity is high, high temperature resistant, solvent resistant, soft feel are good, the method for the hardening with radiation leather release liners separation layer that peeling effect is good
The implementation of the object of the invention is, a kind of method of hardening with radiation leather release liners separation layer, and utilize electron beam radiation curable release liners peel ply, concrete steps are as follows:
1) coating is composite:
Separation layer coating: quality proportioning: carboxylic styrene butadiene latex 60 ~ 80%, sodium sulfate of polyethenoxy ether of fatty alcohol 1%, water 19 ~ 39%;
Releasing layer coating: by following quality proportioning: polyvinyl siloxane 60 ~ 75%, containing hydrogen silicone oil 15 ~ 30%, silane coupler 4 ~ 7%, nano-scale white carbon black 2 ~ 5%, sodium sulfate of polyethenoxy ether of fatty alcohol 1%, fully stirs and evenly mixs, and is placed in vacuum kneader dispersion and stirs under room temperature;
Described containing hydrogen silicone oil: hydrogen content (﹪, m/m) >=: 1.55, viscosity: 40cp;
2) release liners body paper is through apparatus for coating coating separation layer coating, forms isolated film through heat cure; Heat curing temperature: 100 ~ 180 DEG C, hardening time 20 ~ 50s;
3) body paper enters female coating embossed technology after coating separation layer, and releasing layer coating is in coatings tank, and applicator roll is by after in release pigment transfer to paper, and release liners is close to knurling rolls, and the decorative pattern on knurling rolls is directly copied in release liners; Separation layer coatings amount 1 ~ 60g/ ㎡;
4) radiation curing: radiation curing on the transmission bundle frame being placed in 200KeV low-energy electronic accelerator through applying the release liners of decorative pattern through live-roller, forms release liners; Radiation chamber and front and back isolation ward vacuumize, and are filled with nitrogen protection, vacuum 10
-5pa, irradiation dose 10 ~ 100kgy, electron accelerator penetration depth 10 ~ 50 μm, line 60 ~ 80mA speed of a motor vehicle 20 ~ 120m/min; Releasing layer coating coating weight 3 ~ 40g/ ㎡.
The release layer of release liners is coated with by the present invention, embossing and hardening with radiation three phases complete successively, operation easy construction, and energy consumption is low, and efficiency is high; The coating of coating release layer is not containing any solvent, and do not add reactive diluent, non-volatile, environmental friendliness, safety non-toxic is pollution-free.The release liners intensity adopting the present invention to obtain is high, high temperature resistant, solvent resistant, soft feel are good, and peeling effect is good.
Accompanying drawing explanation
Fig. 1 is female of the present invention coating embossed technology form figure.
Detailed description of the invention
Concrete steps of the present invention are as follows:
1) coating is composite:
Separation layer coating: quality proportioning: carboxylic styrene butadiene latex 60 ~ 80%, sodium sulfate of polyethenoxy ether of fatty alcohol 1%, water 19 ~ 39%.
Carboxylic styrene butadiene latex, relative density: 0.90 ~ 1.02, viscosity: 150 ~ 500mPas.Carboxylic styrene butadiene latex is terpolymer.There is higher conjunctiva intensity and bonding force; Stability, mobility are all good; Loading is large; Moulding property is good; Machinery, chemistry and freeze-thaw stability are excellent; With the feature such as pigment, filler compatibility be good.
Releasing layer coating: by following quality proportioning: polyvinyl siloxane 60 ~ 75%, containing hydrogen silicone oil 15 ~ 30%, silane coupler 4 ~ 7%, nano-scale white carbon black 2 ~ 5%, sodium sulfate of polyethenoxy ether of fatty alcohol 1%, fully stirs and evenly mixs, and is placed in vacuum kneader dispersion and stirs under room temperature.
Described containing hydrogen silicone oil is a kind of colourless transparent liquid, hydrogen content (﹪, m/m) >=: 1.55, viscosity: 40cp; Under metal solvent effect, can be cross-linked at moderate temperatures, form waterproof membrane at various substrate surface, be widely used as fabric, extinguishing chemical (dry powder), paper, metal, leather, timber, glass, cement, pottery, marmorean waterproofing agent, antitack agent or corrosion inhibitor etc.
Described polyvinyl siloxane viscosity is 30000 ~ 60000cp.Described silane coupler is the silane that a class has organo-functional group, and the present invention adopts trade mark KH-560, is namely γ-glycidyl ether oxygen propyl trimethoxy silicane, is a kind of epoxy-functional silane, is colourless transparent liquid.Described sodium sulfate of polyethenoxy ether of fatty alcohol (AES) is a kind of white or light yellow gel lotion, belongs to anion surfactant, has higher surface-activity, effectively can reduce surface tension.Described nano-scale white carbon black mainly fume colloidal silica is the cotton-shaped translucent solid colloidal nano particle of white-amorphous under normality, particle diameter at 30 ± 5nm, specific area 150 ~ 300m
2/ g, specific area is huge.
2) release liners body paper is through apparatus for coating coating separation layer coating, forms isolated film through heat cure.Diaphragm is fine and close, effectively can stop the infiltration of release layer, increases mechanical strength.Heat curing temperature: 100 ~ 180 DEG C, hardening time 20 ~ 50s.Release liners body paper is pure wood pulp release liners body paper.
3) body paper enters female coating embossed technology after coating separation layer, releasing layer coating is in coatings tank, applicator roll 4 is by after the release pigment transfer in coatings tank 5 is to paper, and release liners is close to knurling rolls 2, and the decorative pattern on knurling rolls is directly copied to (see Fig. 1) in release liners 3; Separation layer coatings amount 1 ~ 60g/ ㎡.
4) radiation curing: on the transmission bundle frame being placed in 200KeV low-energy electronic accelerator through applying the release liners 3 of decorative pattern through live-roller but speedup, electron beam 1 radiation curing (see Fig. 1), forms release liners.Radiation chamber and front and back isolation ward vacuumize, and are filled with nitrogen protection, vacuum 10
-5pa, irradiation dose 10 ~ 100kgy, electron accelerator penetration depth 10 ~ 50 μm, line 60 ~ 80mA, the speed of a motor vehicle 20 ~ 120m/min.Releasing layer coating coating weight 3 ~ 40g/ ㎡.
Be filled with nitrogen protection nitrogen environment most important, the mode of nitrogen flushing and air flow structure should take away the oxygen of cloth surface as far as possible, that is blowing direction should at the back side of coating against cloth direction of travel nitrogen blowing equably in screened room.
Below in conjunction with specific embodiment, set forth the present invention further.
Embodiment 1:
1) coating is composite:
Separation layer coating: quality proportioning: carboxylic styrene butadiene latex 60%, sodium sulfate of polyethenoxy ether of fatty alcohol 1%, water 39%;
Releasing layer coating: by following quality proportioning: polyvinyl siloxane 60%, containing hydrogen silicone oil 30%, silane coupler 7%, nano-scale white carbon black 2%, sodium sulfate of polyethenoxy ether of fatty alcohol 1%, fully stirs and evenly mixs, and is placed in vacuum kneader dispersion and stirs under room temperature;
2) release liners release liners body paper is through apparatus for coating coating separation layer coating, forms isolated film through heat cure; Heat curing temperature 180 DEG C, hardening time 20s;
3) pure wood pulp body paper enters female coating embossed technology after coating separation layer, and releasing layer coating is in coatings tank, and applicator roll is by after in release pigment transfer to paper, and release liners is close to knurling rolls, and the decorative pattern on knurling rolls is directly copied in release liners; Separation layer coatings amount 1g/ ㎡.
4) radiation curing: radiation curing on the transmission bundle frame being placed in 200KeV low-energy electronic accelerator through applying the release liners of decorative pattern through live-roller, forms release liners.Radiation chamber and front and back isolation ward vacuumize, and are filled with nitrogen protection, vacuum 10
-5pa, irradiation dose 80kgy, electron accelerator penetration depth 40 μm, line 80mA, speed of a motor vehicle 80m/min.Releasing layer coating coating weight 3g/ ㎡.
Embodiment 2: with embodiment 1, unlike,
Separation layer coating: carboxylic styrene butadiene latex 70%, sodium sulfate of polyethenoxy ether of fatty alcohol 1%, water 29%;
Releasing layer coating: by following quality proportioning: polyvinyl siloxane 75%, containing hydrogen silicone oil 15%, silane coupler 4%, nano-scale white carbon black 5%, sodium sulfate of polyethenoxy ether of fatty alcohol 1%;
2) release liners release liners body paper is through apparatus for coating coating separation layer coating, heat curing temperature 150 DEG C, hardening time 30s.
3) separation layer coatings amount 20g/ ㎡.
4) radiation curing vacuum 10
-5pa, irradiation dose 70kgy, electron accelerator penetration depth 30 μm, line 60mA, speed of a motor vehicle 60m/min.Releasing layer coating coating weight 20g/ ㎡.
Embodiment 3: with embodiment 1, unlike,
Separation layer coating: carboxylic styrene butadiene latex 65%, sodium sulfate of polyethenoxy ether of fatty alcohol 1%, water 34%;
Releasing layer coating: by following quality proportioning: polyvinyl siloxane 65%, containing hydrogen silicone oil 24%, silane coupler 6%, nano-scale white carbon black 4%, sodium sulfate of polyethenoxy ether of fatty alcohol 1%;
2) release liners release liners body paper is through apparatus for coating coating separation layer coating, heat curing temperature 100 DEG C, hardening time 50s.
3) separation layer coatings amount 30g/ ㎡.
4) radiation curing vacuum 10
-5pa, irradiation dose 20kgy, electron accelerator penetration depth 10 μm, line 60mA, speed of a motor vehicle 120m/min.Releasing layer coating coating weight 30g/ ㎡.
Embodiment 4: with embodiment 1, unlike,
Separation layer coating: carboxylic styrene butadiene latex 60%, sodium sulfate of polyethenoxy ether of fatty alcohol 1%, water 34%;
Releasing layer coating: by following quality proportioning: polyvinyl siloxane 65%, containing hydrogen silicone oil 25%, silane coupler 6%, nano-scale white carbon black 3%, sodium sulfate of polyethenoxy ether of fatty alcohol 1%;
2) release liners release liners body paper is through apparatus for coating coating separation layer coating, heat curing temperature 140 DEG C, hardening time 40s.
3) separation layer coatings amount 50g/ ㎡.
4) radiation curing vacuum 10
-5pa, irradiation dose 100kgy, electron accelerator penetration depth 50 μm, line 80mA, speed of a motor vehicle 20m/min.Releasing layer coating coating weight 25g/ ㎡.
Embodiment 5: with embodiment 1, unlike,
Separation layer coating: carboxylic styrene butadiene latex 80%, sodium sulfate of polyethenoxy ether of fatty alcohol 1%, water 19%;
Releasing layer coating: by following quality proportioning: polyvinyl siloxane 70%, containing hydrogen silicone oil 20%, silane coupler 6%, nano-scale white carbon black 3%, sodium sulfate of polyethenoxy ether of fatty alcohol 1%;
2) release liners release liners body paper is through apparatus for coating coating separation layer coating, heat curing temperature 150 DEG C, hardening time 40s.
3) separation layer coatings amount 60g/ ㎡.
4) radiation curing vacuum 10
-5pa, irradiation dose 60kgy, electron accelerator penetration depth 40 μm, line 70mA, speed of a motor vehicle 40m/min.Releasing layer coating coating weight 35g/ ㎡.
Embodiment 6: with embodiment 1, unlike,
Separation layer coating: carboxylic styrene butadiene latex 80%, sodium sulfate of polyethenoxy ether of fatty alcohol 1%, water 19%;
Releasing layer coating: by following quality proportioning: polyvinyl siloxane 60%, containing hydrogen silicone oil 30%, silane coupler 5%, nano-scale white carbon black 4%, sodium sulfate of polyethenoxy ether of fatty alcohol 1%;
2) release liners release liners body paper is through apparatus for coating coating separation layer coating, heat curing temperature 100 DEG C, hardening time 50s.
3) separation layer coatings amount 60g/ ㎡.
4) radiation curing vacuum 10
-5pa, irradiation dose 90kgy, electron accelerator penetration depth 20 μm, line 70mA, speed of a motor vehicle 50m/min.Releasing layer coating coating weight 40g/ ㎡.
Claims (4)
1. a hardening with radiation leather method for release liners separation layer, is characterized in that:
1) coating is composite:
Separation layer coating: quality proportioning: carboxylic styrene butadiene latex 60 ~ 80%, sodium sulfate of polyethenoxy ether of fatty alcohol 1%, water 19 ~ 39%;
Releasing layer coating: by following quality proportioning: polyvinyl siloxane 60 ~ 75%, containing hydrogen silicone oil 15 ~ 30%, silane coupler 4 ~ 7%, nano-scale white carbon black 2 ~ 5%, sodium sulfate of polyethenoxy ether of fatty alcohol 1%, fully stirs and evenly mixs, and is placed in vacuum kneader dispersion and stirs under room temperature;
Described containing hydrogen silicone oil: hydrogen content (﹪, m/m) >=: 1.55, viscosity: 40cp;
2) release liners body paper is through apparatus for coating coating separation layer coating, forms isolated film through heat cure; Heat curing temperature: 100 ~ 180 DEG C, hardening time 20 ~ 50s;
3) body paper enters female coating embossed technology after coating separation layer, and releasing layer coating is in coatings tank, and applicator roll is by after in release pigment transfer to paper, and release liners is close to knurling rolls, and the decorative pattern on knurling rolls is directly copied in release liners; Separation layer coatings amount 1 ~ 60g/ ㎡;
4) radiation curing: radiation curing on the transmission bundle frame being placed in 200KeV low-energy electronic accelerator through applying the release liners of decorative pattern through live-roller, forms release liners; Radiation chamber and front and back isolation ward vacuumize, and are filled with nitrogen protection, vacuum 10
-5pa, irradiation dose 10 ~ 100kgy, electron accelerator penetration depth 10 ~ 50 μm, line 60 ~ 80mA, the speed of a motor vehicle 20 ~ 120m/min; Releasing layer coating coating weight 3 ~ 40g/ ㎡.
2. the method for a kind of hardening with radiation leather release liners separation layer according to claim 1, is characterized in that: step 1) in polyvinyl siloxane viscosity be 30000 ~ 60000cp; Silane coupler is γ-glycidyl ether oxygen propyl trimethoxy silicane; Sodium sulfate of polyethenoxy ether of fatty alcohol is white or light yellow gel lotion.
3. the method for a kind of hardening with radiation leather release liners separation layer according to claim 1, it is characterized in that: nano-scale white carbon black is mainly the cotton-shaped translucent solid colloidal nano particle of white-amorphous under fume colloidal silica normality, particle diameter 30 ± 5nm, specific area 150 ~ 300m
2/ g.
4. the method for a kind of hardening with radiation leather release liners separation layer according to claim 1, is characterized in that: release liners body paper is pure wood pulp release liners body paper.
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Cited By (6)
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| CN106638003A (en) * | 2016-08-31 | 2017-05-10 | 浙江科艺纺织有限公司 | Fluorescent fabric based on carbon quantum dots and preparation method of fluorescent fabric |
| CN107629239A (en) * | 2017-09-18 | 2018-01-26 | 南京盛凯特种纸材有限公司 | A kind of preparation technology for solidifying production mirror surface release film using EB |
| CN107866363A (en) * | 2017-09-19 | 2018-04-03 | 广东天安新材料股份有限公司 | A kind of preparation method of home decoration film |
| CN108589416A (en) * | 2018-04-26 | 2018-09-28 | 南京盛凯新材料有限公司 | Nano-particle low-luster super fiber leather release paper and preparation method thereof |
| CN116330633A (en) * | 2023-05-23 | 2023-06-27 | 河北中联银杉新材料有限公司 | Bonding surface pattern printing equipment for pultrusion plate production |
| WO2024037055A1 (en) * | 2022-08-18 | 2024-02-22 | 中广核达胜加速器技术有限公司 | Leather release paper production apparatus and leather release paper production method |
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| CN106638003A (en) * | 2016-08-31 | 2017-05-10 | 浙江科艺纺织有限公司 | Fluorescent fabric based on carbon quantum dots and preparation method of fluorescent fabric |
| CN107629239A (en) * | 2017-09-18 | 2018-01-26 | 南京盛凯特种纸材有限公司 | A kind of preparation technology for solidifying production mirror surface release film using EB |
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| CN108589416A (en) * | 2018-04-26 | 2018-09-28 | 南京盛凯新材料有限公司 | Nano-particle low-luster super fiber leather release paper and preparation method thereof |
| WO2024037055A1 (en) * | 2022-08-18 | 2024-02-22 | 中广核达胜加速器技术有限公司 | Leather release paper production apparatus and leather release paper production method |
| CN116330633A (en) * | 2023-05-23 | 2023-06-27 | 河北中联银杉新材料有限公司 | Bonding surface pattern printing equipment for pultrusion plate production |
| CN116330633B (en) * | 2023-05-23 | 2023-07-25 | 河北中联银杉新材料有限公司 | Bonding surface pattern printing equipment for pultrusion plate production |
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