CN103468174B - Low-temperature hot stamping hot melt adhesive for alumite and preparation method thereof - Google Patents
Low-temperature hot stamping hot melt adhesive for alumite and preparation method thereof Download PDFInfo
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- CN103468174B CN103468174B CN201310450747.2A CN201310450747A CN103468174B CN 103468174 B CN103468174 B CN 103468174B CN 201310450747 A CN201310450747 A CN 201310450747A CN 103468174 B CN103468174 B CN 103468174B
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Abstract
The invention provides low-temperature hot stamping hot melt adhesive for alumite and a preparation method of the low-temperature hot stamping hot melt adhesive. In the existing alumite rotary gold stamping process, heat transfer hot stamping temperatures are all within the range of 120 DEG C to 200 DEG C, if the temperature of a gold stamping plate is too high, energy consumption in the gold stamping process is increased, alumite hot stamping foil or printing materials can deform by being heated, and then hot stamping is inaccurate. The low-temperature hot stamping hot melt adhesive is prepared from the following raw materials, by weight, 1-6 parts of chloroethylene-vinyl acetate resin, 1-10 parts of terpene resin, 1-10 parts of acrylic ester, 1-5 parts of nitrocellulose, 1-5 parts of fumed silica, 20-70 parts of ethyl acetate, 10-50 parts of ethyl alcohol and 1-5 parts of propyl acetate. The low-temperature hot stamping hot melt adhesive is low in softening temperature and high in adhesive power, heat transfer hot stamping temperatures are within the range of 85 DEG C to 100 DEG C, energy consumption can be remarkably reduced, the problems that the gold stamping foil or the printing materials easily deform by being heated by high-temperature hot stamping, so that waste caused by inaccurate hot stamping is generated are solved.
Description
Technical field
The present invention relates to hot melt adhesive field, be specifically related to a kind of low temperature thermoprint hot melt adhesive for anodized aluminium and preparation method thereof.
Background technology
Anodized aluminium is a kind of vacuum aluminum-coated new packaging material, through certain temperature and pressure, the pattern of engraving pre-in gold stamping version, lines and font etc. are transferred to stock surface, make it have the characteristics such as lovely luster, metal sense is strong, visual effect is remarkable, be widely used in thermoprint and the decoration on the surfaces such as paper product, plastics, leatherware, woodwork.
Anodized aluminium is made up of base membrane layer, release layer, pigmented layer, aluminium coated and hot melt adhesive layer, its preparation method is included on base membrane layer and is coated with release layer and pigmented layer, aluminium coated is obtained through vacuum aluminum-coated, and then applying hot melt adhesives layer, hot melt adhesive mainly plays bonding effect, and in electrochemical aluminium thermoprinting, melted by heat sticks to printable fabric surface, play a part to make aluminium coated set, it must possess good upper boiling hot cutting property.
But the anodized aluminium rotary-cutting hot stamping process of prior art, its heat transfer blocking temperature is all at 120-200 DEG C, the adhere firmly of guarantee thermoprint layer, the excessive temperature of gold stamping version not only increases the energy consumption of gold stamping process, cost is high, and alumite thermoprinting foil or stock temperature distortion can be made, cause thermoprint to be forbidden, cause unnecessary waste.In addition, under hot conditions, the life cycle of gold stamping version is short.
Summary of the invention
For solving the deficiencies in the prior art, the present invention aims to provide a kind of low temperature thermoprint hot melt adhesive and preparation method thereof, anodized aluminium containing this hot melt adhesive, its heat transfer blocking temperature is low, improving high temperature thermoprint, that gold stamping paper tinsel or stock are heated is yielding, so that wasting deficiency is forbidden in thermoprint, reduces gold stamping energy consumption simultaneously, extend the life cycle of gold stamping version, thus save gold stamping cost.
For achieving the above object, the present invention adopts following technique means: a kind of low temperature thermoprint hot melt adhesive for anodized aluminium, the raw materials used proportioning of calculating is by weight as follows: vinyl chloride-vinyl acetate resin 1-6 part, terpine resin 1-10 part, acrylate 1-10 part, nitrocellulose 1-5 part, aerosil 1-5 part, ethyl acetate 20-70 part, ethanol 10-50 part, propyl acetate 1-5 part.
Preferably, a kind of low temperature thermoprint hot melt adhesive for anodized aluminium, the raw materials used proportioning of calculating is by weight as follows: vinyl chloride-vinyl acetate resin 2-5 part, terpine resin 3-8 part, acrylate 4-6 part, nitrocellulose 1-3 part, aerosil 1-3 part, ethyl acetate 30-60 part, ethanol 20-40 part, propyl acetate 1-3 part.
Described acrylate is made up of butyl acrylate and ethyl acrylate, and its composition is counted by weight: butyl acrylate 4 parts, ethyl acrylate 1 part.
Wherein, vinylchlorid-vinyl acetate resin both can be used as thermoplastics, and can be used as again the polymkeric substance of slight crosslinked thermosetting resin, this resin that is transparent, toughness has good sticking power for all kinds of base material, and can be directly used in food applications.
Terpine resin is a kind of excellent tackifier; Acrylate energy autohemagglutination or and other monomer copolymerizations, be manufacture the monomer of tackiness agent, synthetic resins, specialty elastomer and plastics.
Acrylate has superior resistance to mineral oil and pyro-oxidation resistance.
Nitrocellulose, is commonly called as soluble cotton, is the product of Mierocrystalline cellulose and nitric acid esterification.A kind of white fibrous polymer, water-fast, resistance to diluted acid, resistance to weak base and various oils.
Aerosil is used as the sticky auxiliary agent of anti-settling, thickening, counnter attack, increases cutability, has good effect to the levelling of hot melt adhesive and the planeness of glue-line film forming and homogeneity.
Ethyl acetate is achromaticity and clarification liquid, is the quick-drying solvent of nitrocellulose, ethyl cellulose, rhodia and chloroprene rubber, is also the low-toxic solvent of industrial use.
Propyl acetate name " n-propyl acetate ", " propyl acetate ", be colourless transparent liquid under normal temperature, dissolve each other with ethanol, ether, have special fruit aroma.
The present invention is used for the preparation method of the low temperature thermoprint hot melt adhesive of anodized aluminium, comprises the following steps:
A, add stirring at normal temperature 3 ~ 5min in container by the load weighted ethyl acetate of proportioning, ethanol and propyl acetate, stirring velocity is 500-700r/min, obtains mixed liquor A;
B, add by the load weighted vinyl chloride-vinyl acetate resin of proportioning, terpine resin, acrylate in mixed liquor A successively, stir 100 ~ 130min, stirring velocity is 500-700r/min, obtains mixed liquid B;
C, add by the load weighted nitrocellulose of proportioning, aerosil in mixed liquid B successively, stir 220 ~ 260min, stirring velocity is 500-700r/min, until dissolve completely or be uniformly dispersed, obtains hot melt adhesive work in-process;
Namely d, the hot melt adhesive work in-process obtained by step c obtain the low temperature thermoprint hot melt adhesive for anodized aluminium after 200 ~ 220 eye mesh screens filter.
Be the environment of 50-60% by the low temperature thermoprint hot melt adhesive for preparing in humidity, by anilox roll with 5-6g/m
2wet glue spread be coated on aluminium coated, after cutting and rewinding operation, the obtained anodized aluminium material with low temperature thermoprint performance.
the present invention has following beneficial effect:
1. the low temperature thermoprint hot melt adhesive for anodized aluminium of the present invention, has low softening temperature and strong adhesive power, and its heat transfer blocking temperature is 85-100 DEG C, significantly can reduce the energy consumption of gold stamping process.
2. the invention solves the high temperature thermoprint that prior art exists, that alumite thermoprinting foil or stock are heated is yielding, causes thermoprint to be forbidden to cause waste, and the problem that under gold stamping version high temperature, life cycle is short, thus has saved gold stamping cost.
3. it is simple that the low temperature thermoprint hot melt adhesive that prepared by the present invention has production technique, and without the need to increasing any machinery equipment, do not increase production cost and stay in grade is controlled, polymer blending modification is simple, is convenient to control.
4. the anodized aluminium product using the present invention to produce has good upper boiling hot cutting property, the Glabrous thorns such as thermoprint font, lines, and bonding does not firmly come off, and stripping strength is high.
5. the present invention is raw materials used make low temperature thermoprint hot melt adhesive after, stable performance, standing storage stablize, do not produce and be separated and precipitate, be easy to cost-saving.
Embodiment
embodiment 1
The present embodiment is produced on " Hongta " cork paper in Yunnan phoenix paper product company limited and is adopted above-mentioned low temperature thermoprint hot melt adhesive, raw materials usedly be: vinyl chloride-vinyl acetate resin 4.0kg, terpine resin 6.0kg, butyl acrylate 4.0kg, ethyl acrylate 1.0kg, nitrocellulose 1.0kg, aerosil 2.0kg, ethyl acetate 50.0kg, ethanol 30.0kg, propyl acetate 2.0kg.
Produce according to following steps:
A, load weighted ethyl acetate, ethanol and propyl acetate are added stirring at normal temperature 3 min in container, stirring velocity is 600r/min, obtains mixed liquor A;
B, in mixed liquor A, add load weighted vinyl chloride-vinyl acetate resin, terpine resin, butyl acrylate and ethyl acrylate successively, stir 120min, stirring velocity is 600r/min, obtains mixed liquid B;
C, in mixed liquid B, add load weighted nitrocellulose, aerosil successively, stir 260min, stirring velocity is 600r/min, until polymkeric substance dissolves completely or is uniformly dispersed, obtains hot melt adhesive work in-process;
Namely d, the hot melt adhesive work in-process obtained by step c obtain the low temperature thermoprint hot melt adhesive for anodized aluminium after 200 eye mesh screens filter.
By the low temperature thermoprint hot melt adhesive for preparing under the environment of humidity at 50-60%, by anilox roll with 5.5g/m
2wet glue spread be coated on aluminium coated, after cutting and rewinding operation, there is the anodized aluminium material of low temperature thermoprint performance, after adopting this hot melt adhesive, electrochemical aluminium thermoprinting temperature is reduced to 85-95 DEG C by original 125-135 DEG C, the former blocking temperature of success solution is high makes cork paper distortion cause thermoprint to be forbidden, and produces the drawback that waste product is many, also reduces the energy consumption of gold stamping process simultaneously.
embodiment 2
The present embodiment is produced " Yuxi " cork paper in Yuxi Filter Plug Wrap Paper Mill, Yunnan and is adopted above-mentioned low temperature thermoprint hot melt adhesive, raw materials usedly be: vinyl chloride-vinyl acetate resin 1.0kg, terpine resin 3.0kg part, butyl acrylate 8.0kg, ethyl acrylate 2.0kg, nitrocellulose 3.0kg, aerosil 1.0kg part, ethyl acetate 30.0kg part, ethanol 10.0kg part, propyl acetate 3.0kg.
Produce according to following steps:
A, load weighted ethyl acetate, ethanol and propyl acetate are added stirring at normal temperature 5 min in container, stirring velocity is 500r/min, obtains mixed liquor A;
B, in mixed liquor A, add load weighted vinyl chloride-vinyl acetate resin, terpine resin, butyl acrylate and ethyl acrylate successively, stir 130min, stirring velocity is 500r/min, obtains mixed liquid B;
C, in mixed liquid B, add load weighted nitrocellulose, aerosil successively, stir 240min, stirring velocity is 500r/min, until polymkeric substance dissolves completely or is uniformly dispersed, obtains hot melt adhesive work in-process;
Namely d, the hot melt adhesive work in-process obtained by step c obtain the low temperature thermoprint hot melt adhesive for anodized aluminium after 220 eye mesh screens filter.
By the low temperature thermoprint hot melt adhesive for preparing under the environment of humidity at 50-60%, by anilox roll with 5.5g/m
2glue spread be coated on aluminium coated, after cutting and rewinding operation, there is the anodized aluminium material of low temperature thermoprint performance, after adopting this hot melt adhesive, electrochemical aluminium thermoprinting temperature is reduced to 95-100 DEG C by original 155-160 DEG C, the energy consumption of gold stamping process is obviously reduced, and extends the life cycle of gold stamping version, has saved gold stamping production cost.
embodiment 3
The present embodiment is produced " lesser panda " cork paper in Qujing of Yunnan kylin good fortune board printing company limited and is adopted above-mentioned low temperature thermoprint hot melt adhesive, raw materials usedly be: vinyl chloride-vinyl acetate resin 6.0kg, terpine resin 8.0kg part, butyl acrylate 3.0kg, ethyl acrylate 1.0kg, nitrocellulose 5.0kg, aerosil 4.0kg part, ethyl acetate 70.0kg part, ethanol 50.0kg part, propyl acetate 5.0kg.
Produce according to following steps:
A, load weighted ethyl acetate, ethanol and propyl acetate are added stirring at normal temperature 4 min in container, stirring velocity is 700r/min, obtains mixed liquor A;
B, in mixed liquor A, add load weighted vinyl chloride-vinyl acetate resin, terpine resin, butyl acrylate and ethyl acrylate successively, stir 100min, stirring velocity is 700r/min, obtains mixed liquid B;
C, in mixed liquid B, add load weighted nitrocellulose, aerosil successively, stir 220min, stirring velocity is 700r/min, until polymkeric substance dissolves completely or is uniformly dispersed, obtains hot melt adhesive work in-process;
Namely d, the hot melt adhesive work in-process obtained by step c obtain the low temperature thermoprint hot melt adhesive for anodized aluminium after 210 eye mesh screens filter.
By the low temperature thermoprint hot melt adhesive for preparing under the environment of humidity at 50-60%, by anilox roll with 5.5g/m
2glue spread be coated on aluminium coated, after cutting and rewinding operation, there is the anodized aluminium material of low temperature thermoprint performance, after adopting this hot melt adhesive, electrochemical aluminium thermoprinting temperature is reduced to 85-95 DEG C by original 130-150 DEG C, the Glabrous thorns such as thermoprint font, lines, and bonding does not firmly come off, stripping strength is high.
Claims (5)
1. the low temperature thermoprint hot melt adhesive for anodized aluminium, it is characterized in that, the raw materials used proportioning of calculating is by weight as follows: vinyl chloride-vinyl acetate resin 1-6 part, terpine resin 1-10 part, acrylate 1-10 part, nitrocellulose 1-5 part, aerosil 1-5 part, ethyl acetate 20-70 part, ethanol 10-50 part, propyl acetate 1-5 part.
2. a kind of low temperature thermoprint hot melt adhesive for anodized aluminium according to claim 1, it is characterized in that, the raw materials used proportioning of calculating is by weight as follows: vinyl chloride-vinyl acetate resin 2-5 part, terpine resin 3-8 part, acrylate 4-6 part, nitrocellulose 1-3 part, aerosil 1-3 part, ethyl acetate 30-60 part, ethanol 20-40 part, propyl acetate 1-3 part.
3. a kind of low temperature thermoprint hot melt adhesive for anodized aluminium according to claim 1, it is characterized in that, described acrylate is made up of butyl acrylate and ethyl acrylate, and its composition is counted by weight: butyl acrylate 4 parts, ethyl acrylate 1 part.
4. a kind of low temperature thermoprint hot melt adhesive for anodized aluminium according to claim 2, it is characterized in that, described acrylate is made up of butyl acrylate and ethyl acrylate, and its composition is counted by weight: butyl acrylate 4 parts, ethyl acrylate 1 part.
5. the preparation method of the low temperature thermoprint hot melt adhesive for anodized aluminium according to any one of Claims 1 to 4, is characterized in that, comprise the following steps:
A, add stirring at normal temperature 3 ~ 5min in container by the load weighted ethyl acetate of proportioning, ethanol and propyl acetate, stirring velocity is 500-700r/min, obtains mixed liquor A;
B, add by the load weighted vinyl chloride-vinyl acetate resin of formula rate, terpine resin, acrylate in mixed liquor A successively, stir 100 ~ 130min, stirring velocity is 500-700r/min, obtains mixed liquid B;
C, add by the load weighted nitrocellulose of formula rate, aerosil in mixed liquid B successively, stir 220 ~ 260min, stirring velocity is 500-700r/min, until dissolve completely or be uniformly dispersed, obtains hot melt adhesive work in-process;
Namely d, the hot melt adhesive work in-process obtained by step c obtain the low temperature thermoprint hot melt adhesive for anodized aluminium after 200 ~ 220 eye mesh screens filter.
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Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104004476B (en) * | 2014-05-13 | 2017-07-07 | 佛山市南海高拓包装材料有限公司 | Adhesive for electrochemical aluminium thermoprinting and preparation method thereof and anodized aluminium |
| CN104263311B (en) * | 2014-09-04 | 2017-02-01 | 武汉华工图像技术开发有限公司 | UV (ultraviolet) cold stamping glue |
| CN105802570B (en) * | 2016-05-15 | 2019-04-05 | 上海汉熵新材料科技有限公司 | It is a kind of to transfer water base hot melt adhesive and preparation method thereof |
| CN106515249A (en) * | 2016-09-27 | 2017-03-22 | 苏州吉谷新材料有限公司 | Thermal sublimation transfer paper |
| CN109593494B (en) * | 2018-12-17 | 2020-08-07 | 云南玉溪东魅包装材料有限公司 | High-speed hot stamping gloss oil type tipping paper electrochemical aluminum foil hot melt adhesive and preparation method thereof |
| CN110079257B (en) * | 2019-04-04 | 2021-01-05 | 武汉华中科大新材料股份有限公司 | Alumite hot stamping glue and preparation method thereof |
| CN111138922B (en) * | 2019-12-20 | 2021-11-23 | 江苏乘鹰新材料股份有限公司 | Offset cold-ironing coating with both large field area and fine lines and preparation method thereof |
| CN111303778A (en) * | 2020-03-07 | 2020-06-19 | 浙江大高镭射科技股份有限公司 | Multipurpose alumite back adhesive and preparation method thereof |
| CN111806114B (en) * | 2020-07-02 | 2022-04-01 | 昆山市生力包装材料有限公司 | Low-temperature adhesive alumite hot stamping foil and production method thereof |
| CN111961427B (en) * | 2020-08-11 | 2021-11-19 | 湖北省葛店开发区晨光实业有限公司 | Laser holographic positioning alumite low-temperature high-speed hot stamping gum and preparation method thereof |
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| KR100314871B1 (en) * | 1995-11-28 | 2002-07-02 | 구광시 | Adhesive layer composition for stamping foil |
| CN101255324B (en) * | 2007-02-26 | 2010-05-19 | 北京高盟化工有限公司 | Trans-printing composition and preparation method thereof |
| CN101407689A (en) * | 2008-11-14 | 2009-04-15 | 上海维凯化学品有限公司 | Single coating transfer aluminum plating coating, and preparation and use thereof |
| CN101870855B (en) * | 2010-07-14 | 2012-02-15 | 浙江德尚化工科技有限公司 | Electrochemical aluminum hot stamping adhesive agent and preparation method thereof |
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