CN1138546A - Temp resistance Al-plastic sealing film and its mfg. method - Google Patents
Temp resistance Al-plastic sealing film and its mfg. method Download PDFInfo
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- CN1138546A CN1138546A CN 95119570 CN95119570A CN1138546A CN 1138546 A CN1138546 A CN 1138546A CN 95119570 CN95119570 CN 95119570 CN 95119570 A CN95119570 A CN 95119570A CN 1138546 A CN1138546 A CN 1138546A
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- ink
- sealing film
- high temperature
- temperature resistant
- plastic sealing
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Abstract
A refractory sealing aluminium membrane for plastic bottle of sterilized beverage is composed of thermal sealing layer, aluminium foil, and ink layer, and features that said ink layer contains hardening agent (2-6%) and is coated by nitrocotton resin. Its advantages are high shaping nature and high-temp resistance, not layering and decolouring, tight sealing and better fineness.
Description
The present invention relates to a kind of high temperature resistant Al-plastic sealing film and manufacture method thereof.
Al-plastic sealing film is widely used in the bottleneck encapsulation of sterilising drink plastic bottle.With the immediate a kind of Al-plastic sealing film of the present invention by four-layer structures such as polyethylene (PE) film, aluminium foil, printing ink and biaxial stretching polyester (hereinafter to be referred as PET) films, polyethylene foil is a hot sealing layer, PET is outer, aluminium foil is compounded on the polyethylene foil with adhesives, inking on the aluminium foil is coated in two-way PET on the ink lay again.There is following defective in the Al-plastic sealing film of this structure: (1) PET formability is poor, and bottleneck is difficult to sealing; (2) PET toughness is strong, and suction pipe is difficult to penetrate in the bottle during use; (3) the compound adhesive that needs of PET and ink lay can not be directly compound, thereby cost height, complex process; (4) can not be high temperature resistant, when temperature surpassed 120 ℃, aluminium foil and the easy layering of PET film influenced seal quality.Analyze its reason, crux is biaxial stretching polyester (PET) film and ink lay quality.
The object of the invention is to provide a kind of novel fire resistant Al-plastic sealing film and manufacture method thereof, to overcome the defective of above-mentioned Al-plastic sealing film.
Technical scheme of the present invention: the PET outer membrane that removes existing Al-plastic sealing film, adopting composition is to ooze in the printing ink of vinyl chloride vinyl acetate polymer resin/acrylic resin to close hardener and use as skin, so can also be on this ink lay compound nitrocotton resin.Through evidence, the Al-plastic sealing film of this structure has high temperature resistant (121 ℃), not stratified, advantage such as formability good, degree of finish good, coating is firm, suction pipe easily penetrates.
Further specify technology contents of the present invention below in conjunction with embodiment and accompanying drawing thereof.
Fig. 1 is embodiment 1 an Al-plastic sealing film structural representation.
Fig. 2 is embodiment 2 Al-plastic sealing film structural representations.
1 is hot sealing layer among the figure, and 2 is aluminium foil layer, and 3 is ink lay, and 4 is the nitrocotton resin bed.
Embodiment 1, the Al-plastic sealing film of polyethylene foil (PE)---aluminium foil---printing ink three-decker.
This feature of sealing film is the hardener of doping 2-6% in the printing ink, and ink ingredient is vinyl chloride vinyl acetate polymer resin/acrylic resin.Method for making: (1) is dissolved in printing ink in aromatic hydrocarbons/ketone/ethyl acetate solvent; (2) in ink solutions, add the hardener of 2-6% (relatively quantity of ink); (3) simultaneously apply ink solutions with typography at aluminium foil, solvent evaporates, surplus ink lay; (4) be used for the formula combination process and on the another side of aluminium foil, use adhesive composite polyethylene (PE) film; (5) with the product maturation process that is shaped, treatment temperature 40-60 ℃, time 48-96 hour.
Embodiment 2, polyethylene (PE) film---aluminium foil---printing ink---nitrocotton resin four-layer structure Al-plastic sealing film.
This seals film is to apply the nitrocotton resin bed on the ink lay of embodiment 1, ink lay is shielded, and the nitrocotton layer has that degree of finish is good, formability is good, suction pipe easily passes, advantage such as high temperature resistant.Method for making is to increase one procedure (3 ') between embodiment 1 operation (3) and operation (4), applies the nitrocotton resin solution with coating process on ink lay, and all the other operations are with embodiment 1.
Polyethylene (PE) among the embodiment 1,2 is the hot sealing layer of this product, except that adopting polyethylene (PE) film, also can adopt plastic sheetings such as polypropylene (PP) film, and this layer material should be with plastic bottle material unanimity.Ooze in the printing ink make that printing ink can not come off behind the assorted an amount of hardener, antifade, intensity be good.Outside ink lay, apply one deck nitrocotton resin again and play the protective cover effect, more increase the result of use of sealing film.
In sum, because the present invention adopts technique scheme, so that this Al-plastic sealing film tool Have formability good, high temperature resistant, not stratified, do not fade, fineness is good, sealing is tight, finished product The rate advantages of higher is a kind of bottleneck encapsulating material of comparatively ideal sterilising drink bottle.
Claims (4)
1, a kind of high temperature resistant Al-plastic sealing film comprises hot sealing layer (1), aluminium foil layer (2) and ink lay (3), it is characterized in that this ink ingredient is vinyl chloride vinyl acetate polymer resin/acrylic resin, doping 2-6% hardener in the printing ink.
2, high temperature resistant Al-plastic sealing film according to claim 1 is characterized in that applying nitrocotton resin bed (4) in ink lay (3) outside.
3, a kind of method of making high temperature resistant Al-plastic sealing film is characterized in that this method comprises:
(1) printing ink is dissolved in aromatic hydrocarbons/ketone/ethyl acetate solvent,
(2) in ink solutions, add 2-6% (quantity of ink relatively) hardener,
(3) simultaneously apply ink solutions with typography at aluminium foil, solvent evaporates, surplus ink lay,
(4) be used for the formula combination process at the aluminium foil another side compound hot sealing layer film of adhesive,
(5) the formed product thermalization is handled, treatment temperature 40-60 ℃, time 48-96 hour.
4, the method for the high temperature resistant plastic-aluminum membrana oralis of manufacturing according to claim 3 is characterized in that also comprising between operation (3) and the operation (4) operation (3) and applies the nitrocotton resin solution with coating process on ink lay.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95119570 CN1138546A (en) | 1995-11-27 | 1995-11-27 | Temp resistance Al-plastic sealing film and its mfg. method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95119570 CN1138546A (en) | 1995-11-27 | 1995-11-27 | Temp resistance Al-plastic sealing film and its mfg. method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1138546A true CN1138546A (en) | 1996-12-25 |
Family
ID=5082085
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 95119570 Pending CN1138546A (en) | 1995-11-27 | 1995-11-27 | Temp resistance Al-plastic sealing film and its mfg. method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1138546A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101462530B (en) * | 2007-12-21 | 2011-05-25 | 比亚迪股份有限公司 | Vessel for gas generator composition and sealing method thereof |
| CN101486865B (en) * | 2009-02-05 | 2012-05-16 | 淄博华瑞铝塑包装材料有限公司 | Metal release agent and preparation thereof |
| CN103331959A (en) * | 2013-07-02 | 2013-10-02 | 中山国安火炬科技发展有限公司 | Packaging film for package of volatile substance |
-
1995
- 1995-11-27 CN CN 95119570 patent/CN1138546A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101462530B (en) * | 2007-12-21 | 2011-05-25 | 比亚迪股份有限公司 | Vessel for gas generator composition and sealing method thereof |
| CN101486865B (en) * | 2009-02-05 | 2012-05-16 | 淄博华瑞铝塑包装材料有限公司 | Metal release agent and preparation thereof |
| CN103331959A (en) * | 2013-07-02 | 2013-10-02 | 中山国安火炬科技发展有限公司 | Packaging film for package of volatile substance |
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| C06 | Publication | ||
| C10 | Entry into substantive examination | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| C01 | Deemed withdrawal of patent application (patent law 1993) |