CN102166865A - Drying agent packing material - Google Patents
Drying agent packing material Download PDFInfo
- Publication number
- CN102166865A CN102166865A CN2011100286753A CN201110028675A CN102166865A CN 102166865 A CN102166865 A CN 102166865A CN 2011100286753 A CN2011100286753 A CN 2011100286753A CN 201110028675 A CN201110028675 A CN 201110028675A CN 102166865 A CN102166865 A CN 102166865A
- Authority
- CN
- China
- Prior art keywords
- complex
- drier
- packaging material
- layer
- orientation stretching
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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- 239000000463 material Substances 0.000 title claims abstract description 12
- 239000002274 desiccant Substances 0.000 title abstract description 4
- 238000012856 packing Methods 0.000 title abstract 4
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 claims abstract description 9
- 230000035699 permeability Effects 0.000 claims abstract description 9
- 239000005022 packaging material Substances 0.000 claims description 23
- 239000002994 raw material Substances 0.000 claims description 17
- -1 polypropylene Polymers 0.000 claims description 14
- 239000004743 Polypropylene Substances 0.000 claims description 9
- 229920005644 polyethylene terephthalate glycol copolymer Polymers 0.000 claims description 8
- 229920000098 polyolefin Polymers 0.000 claims description 8
- 229920001155 polypropylene Polymers 0.000 claims description 8
- 239000000835 fiber Substances 0.000 claims description 7
- 239000004952 Polyamide Substances 0.000 claims description 6
- MSAVICZWFPQFPO-UHFFFAOYSA-N acetic acid;ethene Chemical group C=C.C=C.CC(O)=O MSAVICZWFPQFPO-UHFFFAOYSA-N 0.000 claims description 6
- 229920001038 ethylene copolymer Polymers 0.000 claims description 6
- 229920002647 polyamide Polymers 0.000 claims description 6
- 239000012783 reinforcing fiber Substances 0.000 claims description 6
- 239000004698 Polyethylene Substances 0.000 claims description 5
- 229920000573 polyethylene Polymers 0.000 claims description 5
- 239000005020 polyethylene terephthalate Substances 0.000 claims description 4
- 229920000139 polyethylene terephthalate Polymers 0.000 claims description 4
- 238000005728 strengthening Methods 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 3
- 229920005594 polymer fiber Polymers 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 9
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 abstract description 7
- 239000007788 liquid Substances 0.000 abstract description 3
- 239000012466 permeate Substances 0.000 abstract description 3
- 239000005038 ethylene vinyl acetate Substances 0.000 abstract 2
- 238000013329 compounding Methods 0.000 abstract 1
- 230000036571 hydration Effects 0.000 description 3
- 238000006703 hydration reaction Methods 0.000 description 3
- 238000004321 preservation Methods 0.000 description 3
- 230000000977 initiatory effect Effects 0.000 description 2
- 239000005026 oriented polypropylene Substances 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 description 1
- 241000541656 Carex marina Species 0.000 description 1
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- 241000206607 Porphyra umbilicalis Species 0.000 description 1
- 229920001131 Pulp (paper) Polymers 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 239000001110 calcium chloride Substances 0.000 description 1
- 229910001628 calcium chloride Inorganic materials 0.000 description 1
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 description 1
- 239000000292 calcium oxide Substances 0.000 description 1
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 235000011194 food seasoning agent Nutrition 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 235000019685 rice crackers Nutrition 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
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- Laminated Bodies (AREA)
Abstract
The invention discloses a drying agent packing material. The packing material is a complex which is formed by compounding at least two layers, wherein an inner layer or a middle layer of the complex is an ethylene-vinyl acetate copolymer layer with the thickness of 10 to 40mu m; and the content of vinyl acetate in ethylene-vinyl acetate copolymer is 10 to 40 percent. The packing material has a reasonable structure, moisture permeability adapting to ideal storage humidity and storage period for storing an object can be easily achieved through adjustment, and water vapor can enter a drying agent from outside, but liquid water cannot permeate.
Description
Technical field
The present invention relates to a kind of desiccant package material.
Background technology:
Though existing drier packaging material kind is a lot, according to the difference of preserving between article, storage life, controlling moisture permeability simply and easily is very difficult or impossible the realization.The resin of semiconductor packages and as the preservation condition of the seasoning sea sedge of food require to be controlled at that low humidity (20%RH) is following, metallic article antirust require humidity be controlled at intermediate moisture (50%RH) following, prevent to go mouldy require humidity be controlled at middle high humility (80%RH) following, prevent that dewfall from requiring to be controlled at below the high humility (90%RH), by adjusting the moisture permeability of drier packaging material, can easily satisfy these requirements.
For making the drier packaging material form pouch by three limits or the heat-sealing of four limits, need to use automatic packaging machine, therefore be necessary to give the packaging material heat sealability.Therefore, need be on paper or nonwoven compound polyolefin (PE or PP) film with heat sealability.Because the vapor transfer rate deficiency need perforate on rete in order to give the packaging material poisture-penetrability.By change perforate quantity and arrange, the aperture, can control the poisture-penetrability of packaging material.
Drier inside is easily immersed in the perforate on as the polyolefin of hot sealing layer of conventional dry drying prescription packaging material, the water capacity from perforate.
And many drier raw materials can produce a large amount of hydrations heat when drier is met water suddenly between the delivery period or when discarded, specifically, such as the raw material of the lime drier that uses in the laver, rice cracker, the hydration heat of its main component calcium oxide is 15.8KCal/mol, a large amount of hydrations heat of water generates once takes place to meet suddenly and the accident of initiation fire.Be used for home-use drier or prevent that the heat of solution of the calcium chloride of dewfall from being 81.3KJ/mol, the accident of accumulation of heat initiation fire when once taking place because of a large amount of discarding.
Summary of the invention:
The object of the present invention is to provide a kind of rational in infrastructure, can easily obtain and preserve the poisture-penetrability that adapts between desirable preservation humidity of article and storage life by adjustment, water vapour can enter drier inside from the outside, but the drier packaging material that liquid water can't permeate into.
Technical solution of the present invention:
A kind of drier packaging material, it is characterized in that: be the complex form that is composited by at least two layers, the internal layer of complex or intermediate layer are that thickness is ethene-acetate ethylene copolymer layer of 10 ~ 40 μ m, and the content of vinyl acetate is 10%-40% in ethene-acetate ethylene copolymer.
The skin of complex is paper, nonwoven or film, and described nonwoven, film are orientation stretching PETG, orientation stretching polyamide, orientation stretching polypropylene or are nonwoven, the film of the no heat sealability of primary raw material by the mixture of these raw materials.
The specification of described paper is 20 ~ 50g/m
2The outer field moisture permeability of complex is 1000g/m under 40 ℃ of 90%RH conditions
2More than/the 24hr.
The drier packaging material is the complex form that is composited by three layers, and the intermediate layer is for strengthening the intensity enhancement Layer of intensity.Described enhancement Layer is for being the netted reinforcing fiber of primary raw material with the polyolefin, or uses with orientation stretching PETG, orientation stretching polyamide, orientation stretching polypropylene and as primary raw material poisture-penetrability is not had the material that influences.
The drier packaging material is the complex form that is composited by three layers, and interior one deck is for strengthening the intensity enhancement Layer of intensity.Described enhancement Layer is for being the netted reinforcing fiber of primary raw material with the polyolefin, perhaps uses the nonwoven that is made of polyethylene fibre, un-stretched polypropylene fiber, polyethylene terephthalate polymer fiber etc. poisture-penetrability not to be influenced and has the material of heat sealability.
The present invention is rational in infrastructure, can easily obtain and preserve the poisture-penetrability that adapts between desirable preservation humidity of article and storage life by adjustment, and water vapour can enter drier inside from the outside, but liquid water can't permeate into.
All result of the tests of thickness and the VA content acquisition by change EVA are as follows:
Different moisture permeabilitys according to the resin producer of EVA are different, therefore need adjust a little thickness.
| EVA thickness (μ m) | VA amount (%) | Moisture permeability (g/m 2/24hr） |
| 10 | 8 | 100 |
| 20 | 8 | 50 |
| 10 | 20 | 600 |
| 20 | 20 | 300 |
| 30 | 20 | 200 |
| 40 | 20 | 150 |
| 10 | 30 | 800 |
| 20 | 30 | 600 |
| 30 | 30 | 400 |
| 40 | 30 | 300 |
。Description of drawings
The invention will be further described below in conjunction with drawings and Examples.
Fig. 1 is the structural representation of embodiment 1.
Fig. 2 is the structural representation of embodiment 2.
Fig. 3 is the structural representation of embodiment 3.
The specific embodiment:
Embodiment 1:
A kind of drier packaging material is the complex form that is composited by two layers, and the internal layer 2 of complex is that thickness is ethene-acetate ethylene copolymer (EVA) layer of 10 ~ 40 μ m, and the content of its vinyl acetate (VA) is 20%.
Packaging material outer 1 generally uses with the paper of paper pulp as primary raw material, perhaps uses stretching PETG (PET), drawing polyamide (ONY), oriented polypropylene (OPP) to be primary raw material and the nonwoven that does not have heat sealability, the film that are made of their mixture.Generally require poisture-penetrability big, moisture permeability is at 1000g/m
2More than/the 24hr (under 40 ℃ of 90%RH conditions).The specification of described paper is 20 ~ 50g/m
2
Embodiment 2:
A kind of drier packaging material, be the complex form that is composited by three layers, the internal layer 5 of complex is that thickness is ethene-acetate ethylene copolymer (EVA) layer of 10 ~ 40 μ m, the content of its vinyl acetate (VA) is 30%, the skin 3 of complex is with embodiment 1, use with the netted reinforcing fiber of polyolefin as primary raw material in intermediate layer 4, be specially JX Nippon ANSI system CLAF, perhaps use the material that as the nonwoven of primary raw material etc. moisture permeability is not had influence with PETG (PET), polyamide (ONY), polypropylene (OPP).
Embodiment 3:
A kind of drier packaging material, be the complex form that is composited by three layers, the skin of complex is identical with the skin 6 of embodiment 1, the intermediate layer 7 of complex is identical with the internal layer of embodiment 2, the internal layer 8 of complex is for possessing the material of heat sealability, as with the polyolefin being the netted reinforcing fiber of primary raw material, perhaps the nonwoven that is made of polyethylene (PE) fiber, polypropylene (CPP) fiber, polyethylene terephthalate polymer (Co-PET) fiber etc. does not have the material of influence to poisture-penetrability.
Claims (7)
1. drier packaging material, it is characterized in that: be the complex form that is composited by at least two layers, the internal layer of complex or intermediate layer are that thickness is ethene-acetate ethylene copolymer layer of 10 ~ 40 μ m, and the content of vinyl acetate is 10%-40% in ethene-acetate ethylene copolymer.
2. drier packaging material according to claim 1, it is characterized in that: the skin of complex is paper, nonwoven or film, and described nonwoven, film are orientation stretching PETG, orientation stretching polyamide, orientation stretching polypropylene or are nonwoven, the film of the no heat sealability of primary raw material by the mixture of these raw materials.
3. drier packaging material according to claim 2 is characterized in that: the specification of described paper is 20 ~ 50g/m
2The outer field moisture permeability of complex is 1000g/m under 40 ℃ of 90%RH conditions
2More than/the 24hr.
4. according to claim 1,2 or 3 described drier packaging materials, it is characterized in that: be the complex form that is composited by three layers, and the intermediate layer is for strengthening the intensity enhancement Layer of intensity.
5. drier packaging material according to claim 4, it is characterized in that: described enhancement Layer is for being the netted reinforcing fiber of primary raw material with the polyolefin, or uses with orientation stretching PETG, orientation stretching polyamide, orientation stretching polypropylene and as primary raw material poisture-penetrability is not had the material that influences.
6. according to claim 1,2 or 3 described drier packaging materials, it is characterized in that: be the complex form that is composited by three layers, and interior one deck is for strengthening the intensity enhancement Layer of intensity.
7. drier packaging material according to claim 6, it is characterized in that: described enhancement Layer is for being the netted reinforcing fiber of primary raw material with the polyolefin, and perhaps using by what polyethylene fibre, un-stretched polypropylene fiber, polyethylene terephthalate polymer fiber constituted does not influence and have the material of heat sealability to poisture-penetrability.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100286753A CN102166865A (en) | 2011-01-27 | 2011-01-27 | Drying agent packing material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100286753A CN102166865A (en) | 2011-01-27 | 2011-01-27 | Drying agent packing material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102166865A true CN102166865A (en) | 2011-08-31 |
Family
ID=44488276
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011100286753A Pending CN102166865A (en) | 2011-01-27 | 2011-01-27 | Drying agent packing material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102166865A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103568421A (en) * | 2013-10-15 | 2014-02-12 | 昆山威胜干燥剂研发中心有限公司 | Drier coating film |
| CN103569503A (en) * | 2013-10-15 | 2014-02-12 | 昆山威胜干燥剂研发中心有限公司 | Drying agent coating film |
| CN111421923A (en) * | 2020-04-15 | 2020-07-17 | 天长市天粤塑胶有限公司 | Interior three-dimensional braided bag of gluing multilayer that drenches outward |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000334894A (en) * | 1999-05-31 | 2000-12-05 | Dainippon Printing Co Ltd | Packaging material for desiccant |
| CN1646753A (en) * | 2000-09-18 | 2005-07-27 | 出光统一科技株式会社 | Multilayer non-woven fabric and use thereof |
| CN1730275A (en) * | 2005-08-25 | 2006-02-08 | 南通大江化学有限公司 | Moisture/gas permeable packaging material and production method thereof |
| CN201086925Y (en) * | 2007-08-16 | 2008-07-16 | 杭州顶正包材有限公司 | Netted dryer packing paper |
| CN201358019Y (en) * | 2009-02-16 | 2009-12-09 | 杭州顶正包材有限公司 | Desiccant packaging film |
-
2011
- 2011-01-27 CN CN2011100286753A patent/CN102166865A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000334894A (en) * | 1999-05-31 | 2000-12-05 | Dainippon Printing Co Ltd | Packaging material for desiccant |
| CN1646753A (en) * | 2000-09-18 | 2005-07-27 | 出光统一科技株式会社 | Multilayer non-woven fabric and use thereof |
| CN1730275A (en) * | 2005-08-25 | 2006-02-08 | 南通大江化学有限公司 | Moisture/gas permeable packaging material and production method thereof |
| CN201086925Y (en) * | 2007-08-16 | 2008-07-16 | 杭州顶正包材有限公司 | Netted dryer packing paper |
| CN201358019Y (en) * | 2009-02-16 | 2009-12-09 | 杭州顶正包材有限公司 | Desiccant packaging film |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103568421A (en) * | 2013-10-15 | 2014-02-12 | 昆山威胜干燥剂研发中心有限公司 | Drier coating film |
| CN103569503A (en) * | 2013-10-15 | 2014-02-12 | 昆山威胜干燥剂研发中心有限公司 | Drying agent coating film |
| CN103569503B (en) * | 2013-10-15 | 2015-10-21 | 昆山威胜干燥剂研发中心有限公司 | A kind of drier coating film |
| CN111421923A (en) * | 2020-04-15 | 2020-07-17 | 天长市天粤塑胶有限公司 | Interior three-dimensional braided bag of gluing multilayer that drenches outward |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20110831 |