CN101119898A - Packaging bag with moisture absorption indicator function and drying agent - Google Patents
Packaging bag with moisture absorption indicator function and drying agent Download PDFInfo
- Publication number
- CN101119898A CN101119898A CNA2006800048019A CN200680004801A CN101119898A CN 101119898 A CN101119898 A CN 101119898A CN A2006800048019 A CNA2006800048019 A CN A2006800048019A CN 200680004801 A CN200680004801 A CN 200680004801A CN 101119898 A CN101119898 A CN 101119898A
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- Prior art keywords
- film
- desiccant
- moisture absorption
- mentioned
- packing
- Prior art date
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Links
- 239000002274 desiccant Substances 0.000 title claims abstract description 284
- 238000010521 absorption reaction Methods 0.000 title claims abstract description 197
- 238000004806 packaging method and process Methods 0.000 title claims abstract description 91
- 229920005989 resin Polymers 0.000 claims abstract description 182
- 239000011347 resin Substances 0.000 claims abstract description 182
- 230000004888 barrier function Effects 0.000 claims abstract description 127
- 239000010457 zeolite Substances 0.000 claims abstract description 39
- 229910021536 Zeolite Inorganic materials 0.000 claims abstract description 38
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 claims abstract description 38
- 238000012856 packing Methods 0.000 claims description 178
- 238000010586 diagram Methods 0.000 claims description 101
- 238000007639 printing Methods 0.000 claims description 57
- 230000031700 light absorption Effects 0.000 claims description 51
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 50
- 238000001035 drying Methods 0.000 claims description 46
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 45
- 239000000463 material Substances 0.000 claims description 36
- 238000007789 sealing Methods 0.000 claims description 33
- 230000005540 biological transmission Effects 0.000 claims description 23
- 239000000741 silica gel Substances 0.000 claims description 22
- 229910002027 silica gel Inorganic materials 0.000 claims description 22
- 238000009738 saturating Methods 0.000 claims description 21
- 229920005992 thermoplastic resin Polymers 0.000 claims description 21
- 239000011248 coating agent Substances 0.000 claims description 20
- 238000000576 coating method Methods 0.000 claims description 20
- 230000008021 deposition Effects 0.000 claims description 17
- 229920001169 thermoplastic Polymers 0.000 claims description 17
- 239000004416 thermosoftening plastic Substances 0.000 claims description 17
- 229920000098 polyolefin Polymers 0.000 claims description 16
- 239000000377 silicon dioxide Substances 0.000 claims description 14
- 235000012239 silicon dioxide Nutrition 0.000 claims description 14
- 239000000203 mixture Substances 0.000 claims description 10
- 238000000149 argon plasma sintering Methods 0.000 claims description 9
- 230000015572 biosynthetic process Effects 0.000 claims description 8
- 229910052809 inorganic oxide Inorganic materials 0.000 claims description 7
- 229910052782 aluminium Inorganic materials 0.000 claims description 6
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 6
- 229910052581 Si3N4 Inorganic materials 0.000 claims description 5
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 claims description 5
- 239000006229 carbon black Substances 0.000 claims description 4
- 239000002932 luster Substances 0.000 claims description 3
- 210000002469 basement membrane Anatomy 0.000 claims description 2
- 229910001385 heavy metal Inorganic materials 0.000 abstract description 7
- 239000005022 packaging material Substances 0.000 abstract description 7
- 230000009931 harmful effect Effects 0.000 abstract description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 3
- 238000010030 laminating Methods 0.000 abstract 1
- 239000010408 film Substances 0.000 description 588
- 239000012528 membrane Substances 0.000 description 22
- 210000004379 membrane Anatomy 0.000 description 22
- -1 polyethylene terephthalate Polymers 0.000 description 21
- 229920001684 low density polyethylene Polymers 0.000 description 20
- 239000004702 low-density polyethylene Substances 0.000 description 20
- 238000000151 deposition Methods 0.000 description 16
- 239000004743 Polypropylene Substances 0.000 description 14
- 229920001155 polypropylene Polymers 0.000 description 14
- 239000005001 laminate film Substances 0.000 description 13
- 239000005030 aluminium foil Substances 0.000 description 11
- 229920000139 polyethylene terephthalate Polymers 0.000 description 10
- 239000005020 polyethylene terephthalate Substances 0.000 description 10
- 229920002799 BoPET Polymers 0.000 description 9
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 description 8
- 239000004698 Polyethylene Substances 0.000 description 8
- 239000004734 Polyphenylene sulfide Substances 0.000 description 8
- 239000001110 calcium chloride Substances 0.000 description 8
- 229910001628 calcium chloride Inorganic materials 0.000 description 8
- 229920000092 linear low density polyethylene Polymers 0.000 description 8
- 239000004707 linear low-density polyethylene Substances 0.000 description 8
- 229920000573 polyethylene Polymers 0.000 description 8
- 229920000069 polyphenylene sulfide Polymers 0.000 description 8
- 230000008901 benefit Effects 0.000 description 7
- 230000003287 optical effect Effects 0.000 description 7
- 238000004321 preservation Methods 0.000 description 7
- 229920006395 saturated elastomer Polymers 0.000 description 7
- 239000003230 hygroscopic agent Substances 0.000 description 6
- 239000011159 matrix material Substances 0.000 description 6
- 238000007747 plating Methods 0.000 description 6
- 239000011148 porous material Substances 0.000 description 6
- 229920000219 Ethylene vinyl alcohol Polymers 0.000 description 5
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 5
- 229910052788 barium Inorganic materials 0.000 description 5
- DSAJWYNOEDNPEQ-UHFFFAOYSA-N barium atom Chemical compound [Ba] DSAJWYNOEDNPEQ-UHFFFAOYSA-N 0.000 description 5
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 description 5
- 239000000292 calcium oxide Substances 0.000 description 5
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 5
- 239000007789 gas Substances 0.000 description 5
- 238000000465 moulding Methods 0.000 description 5
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 5
- 239000004810 polytetrafluoroethylene Substances 0.000 description 5
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 5
- 229910021653 sulphate ion Inorganic materials 0.000 description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
- 229920000298 Cellophane Polymers 0.000 description 4
- TWRXJAOTZQYOKJ-UHFFFAOYSA-L Magnesium chloride Chemical compound [Mg+2].[Cl-].[Cl-] TWRXJAOTZQYOKJ-UHFFFAOYSA-L 0.000 description 4
- CSNNHWWHGAXBCP-UHFFFAOYSA-L Magnesium sulfate Chemical compound [Mg+2].[O-][S+2]([O-])([O-])[O-] CSNNHWWHGAXBCP-UHFFFAOYSA-L 0.000 description 4
- 239000004642 Polyimide Substances 0.000 description 4
- 239000004721 Polyphenylene oxide Substances 0.000 description 4
- 239000004793 Polystyrene Substances 0.000 description 4
- 229920001986 Vinylidene chloride-vinyl chloride copolymer Polymers 0.000 description 4
- 229910052799 carbon Inorganic materials 0.000 description 4
- 239000004927 clay Substances 0.000 description 4
- 150000001875 compounds Chemical class 0.000 description 4
- 229920006351 engineering plastic Polymers 0.000 description 4
- 238000001125 extrusion Methods 0.000 description 4
- 239000004816 latex Substances 0.000 description 4
- 229920000126 latex Polymers 0.000 description 4
- 239000004417 polycarbonate Substances 0.000 description 4
- 229920000515 polycarbonate Polymers 0.000 description 4
- 229920000570 polyether Polymers 0.000 description 4
- 229920001721 polyimide Polymers 0.000 description 4
- 150000003585 thioureas Chemical class 0.000 description 4
- 244000025254 Cannabis sativa Species 0.000 description 3
- 206010018612 Gonorrhoea Diseases 0.000 description 3
- 235000000177 Indigofera tinctoria Nutrition 0.000 description 3
- 239000005041 Mylar™ Substances 0.000 description 3
- 239000004677 Nylon Substances 0.000 description 3
- 239000003463 adsorbent Substances 0.000 description 3
- GVPFVAHMJGGAJG-UHFFFAOYSA-L cobalt dichloride Chemical compound [Cl-].[Cl-].[Co+2] GVPFVAHMJGGAJG-UHFFFAOYSA-L 0.000 description 3
- 229920001577 copolymer Polymers 0.000 description 3
- 239000003814 drug Substances 0.000 description 3
- 229920005648 ethylene methacrylic acid copolymer Polymers 0.000 description 3
- 239000004715 ethylene vinyl alcohol Substances 0.000 description 3
- 229920006225 ethylene-methyl acrylate Polymers 0.000 description 3
- 238000011049 filling Methods 0.000 description 3
- 229940097275 indigo Drugs 0.000 description 3
- COHYTHOBJLSHDF-UHFFFAOYSA-N indigo powder Natural products N1C2=CC=CC=C2C(=O)C1=C1C(=O)C2=CC=CC=C2N1 COHYTHOBJLSHDF-UHFFFAOYSA-N 0.000 description 3
- 229920000554 ionomer Polymers 0.000 description 3
- 229920001778 nylon Polymers 0.000 description 3
- 229920005672 polyolefin resin Polymers 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- KUDUQBURMYMBIJ-UHFFFAOYSA-N 2-prop-2-enoyloxyethyl prop-2-enoate Chemical compound C=CC(=O)OCCOC(=O)C=C KUDUQBURMYMBIJ-UHFFFAOYSA-N 0.000 description 2
- 241001397173 Kali <angiosperm> Species 0.000 description 2
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 2
- 239000006096 absorbing agent Substances 0.000 description 2
- LCJHLOJKAAQLQW-UHFFFAOYSA-N acetic acid;ethane Chemical compound CC.CC(O)=O LCJHLOJKAAQLQW-UHFFFAOYSA-N 0.000 description 2
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- 230000000996 additive effect Effects 0.000 description 2
- 229940037003 alum Drugs 0.000 description 2
- 229910017052 cobalt Inorganic materials 0.000 description 2
- 239000010941 cobalt Substances 0.000 description 2
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 2
- 239000000975 dye Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 150000002148 esters Chemical class 0.000 description 2
- 239000000499 gel Substances 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- BHEPBYXIRTUNPN-UHFFFAOYSA-N hydridophosphorus(.) (triplet) Chemical compound [PH] BHEPBYXIRTUNPN-UHFFFAOYSA-N 0.000 description 2
- 238000003475 lamination Methods 0.000 description 2
- 229910001629 magnesium chloride Inorganic materials 0.000 description 2
- 229910052943 magnesium sulfate Inorganic materials 0.000 description 2
- 235000019341 magnesium sulphate Nutrition 0.000 description 2
- 238000001883 metal evaporation Methods 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- JKQOBWVOAYFWKG-UHFFFAOYSA-N molybdenum trioxide Chemical compound O=[Mo](=O)=O JKQOBWVOAYFWKG-UHFFFAOYSA-N 0.000 description 2
- 150000004767 nitrides Chemical class 0.000 description 2
- 239000000049 pigment Substances 0.000 description 2
- 239000013612 plasmid Substances 0.000 description 2
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 2
- 239000004926 polymethyl methacrylate Substances 0.000 description 2
- 229920002223 polystyrene Polymers 0.000 description 2
- 239000004800 polyvinyl chloride Substances 0.000 description 2
- 239000005033 polyvinylidene chloride Substances 0.000 description 2
- 238000007873 sieving Methods 0.000 description 2
- KKCBUQHMOMHUOY-UHFFFAOYSA-N sodium oxide Chemical compound [O-2].[Na+].[Na+] KKCBUQHMOMHUOY-UHFFFAOYSA-N 0.000 description 2
- 229910001948 sodium oxide Inorganic materials 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 1
- 235000006040 Prunus persica var persica Nutrition 0.000 description 1
- 240000006413 Prunus persica var. persica Species 0.000 description 1
- 239000002313 adhesive film Substances 0.000 description 1
- 239000007844 bleaching agent Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 230000000254 damaging effect Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229920006226 ethylene-acrylic acid Polymers 0.000 description 1
- 229920006244 ethylene-ethyl acrylate Polymers 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 238000005243 fluidization Methods 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 239000004745 nonwoven fabric Substances 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 239000000088 plastic resin Substances 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920006267 polyester film Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
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- Packages (AREA)
- Bag Frames (AREA)
- Wrappers (AREA)
- Laminated Bodies (AREA)
- Drying Of Gases (AREA)
Abstract
A packaging bag with a moisture absorption indicator function and a drying agent where heavy metal harmful to human body is not employed. The packaging bag consists of a first packaging material (10) and a second packaging material (20), wherein a transparent barrier film (12) having water vapor barrier properties is provided on the outermost surface of the first packaging material (10), the second packaging material (20) comprises a laminate of a light reflecting or light absorbing film (24) and a pattern print film (23) printed with a moisture absorption indicator pattern (30) on the surface on the inner side of bag of that film, and resin films (11, 21) containing drying agent and becoming transparent by absorbing moisture are laminated on the surface on the inner side of bag of at least one of the first packaging material (10) and the second packaging material (20). The drying agent with a moisture absorption indicator function is composed of an indicator film layer (70) formed by laminating the moisture absorption indicator pattern print layer (73) and a moisture absorption film (71) containing zeolite sequentially on a barrier film (75), and a main drying agent layer (61) and a moisture transmitting film (64) laminated on the moisture absorption film (71).
Description
Technical field
The present invention relates to a kind of desiccant that has the packaging bag of moisture absorption indicator function and have moisture absorption indicator function, relate to particularly: will need damp-proof article, when for example various article storings such as food, electronic unit, medicine, file seal after in packaging bag again, the sucting wet state in this bag can be estimated, the packaging bag of the moisture-proof characteristic of packaging bag self can be confirmed simultaneously; And the trunk drying prescription is made of thin slice or film or desiccant formed body, and has the sheet, the desiccant of tabular or bag shape of deixis of the sucting wet state of this desiccant of indication.
Background technology
Generally, in dried product, desiccant such as pack in the pouch silica gel, calcium chloride is also enclosed in the packaging body back and is used, and the operability of packing is relatively poor.And this material as white of silica gel is not from confirming sucting wet state in appearance.
Therefore, existence can be confirmed the goods of sucting wet state, that is, silica gel is mixed with cobalt chloride, presents blueness under drying regime, and the moisture that absorbs in the atmosphere then presents peach goods, as the desiccant with moisture absorption Presentation Function.
For example, as desiccant, bag dehumidizier of shape atmidoscope that has is as shown in figure 10 arranged with moisture absorption indicator function.This dehumidizier is that hygroscopic agent sheet 1 is received in the non-woven fabric bag 4, attaches the hygroscopic property atmidoscope 2 that covers with barrier film 3 on hygroscopic agent sheet 1.Hygroscopic property atmidoscope 2 contains cobalt chloride, in addition, barrier film 3 is provided with micropore, when 1 moisture absorption of hygroscopic agent sheet, hygroscopic property atmidoscope 2 makes color from blue pulverize redness by the micropore moisture absorption, when the 1 dry regeneration of hygroscopic agent sheet, become blueness from pink, thereby can know the sucting wet state of recognizing hygroscopic agent sheet 1.(for example, with reference to patent documentation 1)
But, in the first precedent of patent documentation 1, use cobalt chloride as the moisture absorption indicator substance, yet use the desiccant of the tool moisture absorption indicating device of heavy metal such as cobalt at present,, cause heavy metal to be discharged in the living environment if discharge and burn as dust, from considerations such as environment aspects, this is the situation that will be avoided as possible, and therefore, needing exploitation is the desiccant with moisture absorption indicator function of target to remove cobalt.
In addition, as packaging body with moisture absorbing, cylindric moisture absorption container is as shown in figure 11 arranged, this moisture absorption container is with after screw-in hollow container (outermost layer) 6 and internal container (innermost layer) the 7 difference injection mo(u)ldings that it is integrated, is screwed into the accommodating container that covers 8 rear encloseds and form again on hollow container 6.Internal container 7 forms by having the resin combination moulding that shows hygroscopic deixis.Use the material be mixed with synthetic zeolite 7a in this resin combination, internal container 7 utilizes after moisture absorption variable colors to become the function of bright-coloured yellow and confirms the degree of moisture absorption.(for example, with reference to patent documentation 2)
Patent documentation 1: Japan is real to open clear 64-28934 communique (specification sheets in full, Fig. 1)
Patent documentation 2: TOHKEMY 2004-331855 communique (specification sheets full text, Fig. 1)
Summary of the invention
The moisture absorption container of the first precedent shown in the patent documentation 2 is the packaging body with deixis, but it is the opening of screw-in hollow container and the integrated accommodating container that forms of internal container to be used cover the osed top form, internal container in the accommodating container is made of resin combination, when this resin combination has moisture absorption with the deixis of tonal variation.This packaging body can not be discerned sucting wet state effectively from the outside.
In view of above-mentioned technical matters, the purpose of this invention is to provide a kind of moisture absorption indicator function that has, do not use harmful heavy metal, utilization has mixed the resin film function that the transparency increases along with moisture absorption of desiccant, can discern the packaging bag with moisture absorption indicator function of indicator diagrams such as literal, numeral, figure from the outside of packaging bag.
In addition, another object of the present invention provides and a kind ofly is provided with trunk drying prescription layer and has moisture absorption indicator function, do not use harmful heavy metal, utilization has mixed the resin film function that the transparency increases along with moisture absorption of desiccant, can discern the desiccant with moisture absorption indicator function of indicator diagrams such as literal, numeral, figure from the outside of packaging bag.
The invention solves above-mentioned technical matters, a kind of later-model packaging bag and later-model desiccant with moisture absorption indicator function with moisture absorption indicator function is provided.
Packaging bag with moisture absorption indicator function of the present invention, it is characterized in that: comprise the 1st packing and the 2nd packing, the bonding mutually and space that the formation article storing is used between them of the 1st packing and the 2nd packing, the transparent barrier film that the aqueous vapor barrier is arranged at the outermost of the 1st packing in the 1st packing and the 2nd packing at least, the 2nd packing have light reflection or light absorption film and in the inboard pattern printed layers that contains the moisture absorption indicator diagram of the bag of this film, and at least one side's bag inside upper part is divided or whole stacked resin film that contains desiccant because of the moisture absorption transparence in the 1st packing and the 2nd packing.In addition, the outermost of the 2nd packing also can have the barrier film of aqueous vapor barrier.In addition, the 1st packing and the 2nd packing wait its four limits sealing by heat-sealing in this packaging bag, thereby protect the article of taking in not make moist.In addition, this packaging bag also comprises the packaging bag of the 3 limits heat-sealing of the 1st packing and the 2nd packing, takes in the one side that will be left again behind the article and waits the sealing back to use by heat-sealing.
In addition, according to optimal way of the present invention, the resin film that contains desiccant is stacked contains the resin bed of desiccant and the resin film of thermoplastic resin.Thermoplastic resin, for example preferred polyolefm.
According to optimal way of the present invention, transparency barrier film is the film that has following each layer on basement membrane: the vapor-deposited film of the vapor-deposited film of lining silicon dioxide or aluminium oxide or their multilayer vapor-deposited film, silicon nitride, be coated with the layer of barrier coating, perhaps apply the layer of barrier coating on vapor-deposited film, the moisture-vapor transmission of this transparency barrier film is 0.001～100g/m
2/ day.The barrier property of preferred the 1st packing and the 2nd packing about equally.
According to optimal way of the present invention, light reflective film is the film with metallic luster that aluminum laminated film, aluminium-vapour deposition film, inorganic evaporated film or inorganic oxide evaporated film constitute, and its moisture-vapor transmission is 0.001～100g/m
2/ day.In addition, as above-mentioned inorganic matter or inorganic oxide, select environment is not had the material of influence.
In addition, according to optimal way of the present invention, light absorption film is laminated with following film, and described film is for being coated with or containing the film of light absorption material, the perhaps coating or the film of stacked light absorption material, the moisture-vapor transmission of this light absorption film is 0.001～100g/m
2/ day.
According to optimal way of the present invention, pattern printed layers is the polyolefin film that is provided with on the resin film that contains desiccant or light reflection or light absorption film; The moisture absorption indicator diagram is the pattern that printing word, numeral, figure or their appropriate combination form on the one side at least of this polyolefin film; The resin film that contains desiccant reaches capacity along with the sucting wet state of contained desiccant and becomes transparent, thereby all can discern the moisture absorption indicator diagram in bag or outside the bag.Perhaps, also can be following mode: pattern printed layers be arranged on the resin film or light reflection or light absorption film that contains desiccant, and the moisture absorption indicator diagram is the pattern that printing word, numeral, figure or their appropriate combination form on the one side at least of the resin film that contains desiccant or light reflection or light absorption film.In addition, the moisture absorption indicator diagram can show the preservation boundary of article for moisture, for example available word marking " reached preserve boundary " etc., also can be with this mark and figure combination, in addition, use the different literal of printing concentration, numeral etc., can according to the identification successively from dense to light of the corresponding concentration degree of the sucting wet state of the resin film that contains desiccant, thereby can confirm to preserve boundary interimly.In addition, on the polyolefin film of printing moisture absorption indicator diagram, can on the promptly opposite face background colour printed layers be set in its outside with the moisture absorption indicator diagram.
According to optimal way of the present invention, contain and contain at least a above in zeolite, silica gel and the aluminium oxide in the resin film of desiccant as desiccant.
In addition, according to optimal way of the present invention, the 1st packing are arranged in the face side of article that packaging bag is taken in, and the 2nd packing are positioned at the rear side of these article.
According to optimal way of the present invention, light absorption film is to be printed with the film of black ink or the film of mixed carbon black in thermoplastic base resin.
According to optimal way of the present invention, in containing the resin film of desiccant, mix or be coated with light-scattering material, perhaps on transparent barrier film, be coated with light-scattering material.
In addition, packaging bag of the present invention is to comprise packaging bags such as 3 limit sealing bags of the tool moisture absorption indicator function of the 1st packing and the 2nd packing or 4 limit sealing bags, contained side bag, butt-ended bag, can also be the mode that the incorporating section of article is arranged on both sides or two positions of the 2nd packing, the article storing portion of the 2nd packing can be shaped to case shape or tubular.
Desiccant with moisture absorption indicator function of the present invention is characterised in that: have and stacked gradually the pattern printed layers that is printed with the moisture absorption indicator diagram and because of the indication thin layer of the hygroscopic film of moisture absorption transparence on barrier film; On the hygroscopic film of indication thin layer, have trunk drying prescription layer and moisture peretrability film.In addition, barrier film can be made of aluminum laminated film, aluminium-vapour deposition film, inorganic evaporated film or inorganic oxide evaporated film.In addition, pattern printed layers is the layer of printing moisture absorption indicator diagram, and the pattern that described moisture absorption indicator diagram is formed by literal, numeral, figure or their appropriate combination etc. constitutes.In addition, in the trunk drying prescription layer, can in thermoplastic base resin, use desiccant such as silicon dioxide (silica gel), calcium oxide, calcium chloride, sulphate cpd, barium oxider, active carbon, clay compound.In addition, trunk drying prescription layer can be transparent when hygroscopic property is undersaturated condition, but must be for not transparent, as long as trunk drying prescription layer is transparent when hygroscopic property reaches capacity state.
In addition, according to optimal way of the present invention, the hygroscopic property that on hygroscopic film, is laminated with this hygroscopic film of the control saturating wet control film of time that reaches capacity.In addition, saturating wet control film, for example preferred polyethylene terephthalate (PET), polyethylene (PE), polypropylene (PP), polyvinylchloride (PVC), nylon (Ny), ethane-acetic acid ethyenyl ester (EVA), polystyrene (PS), ethylene-vinyl alcohol copolymer (EVOH), polyvinylidene chloride (PVDC) or cellophane as thermoplastic base resin.Saturating wet control film is the film that is used to control the rate of moisture absorption of hygroscopic film, so that the hygroscopic property of hygroscopic film reaches capacity before the hygroscopic property of trunk drying prescription layer reaches capacity, thereby can not discern the moisture absorption indicating device from the outside.In addition, the hygroscopic property holding time of hygroscopic film, set according to the hygroscopic propertys such as hygroscopic property holding time of trunk drying prescription layer.
According to optimal way of the present invention, between trunk drying prescription layer and hygroscopic film, perhaps between trunk drying prescription layer and saturating wet control film, form the space and become a bag shape portion.
According to optimal way of the present invention, trunk drying prescription layer is transparent desiccant film or transparent desiccant formed body.
In addition, according to optimal way of the present invention, trunk drying prescription layer is granular or tabular desiccant or deliquescence desiccant, with the edge sealing of the edge of moisture peretrability film and hygroscopic film or moisture peretrability film and saturating wet control film and shape pouch portion, pack in this bag shape portion granular or tabular desiccant or deliquescence desiccant.In addition, can enumerate silica gel etc. as granular desiccant; Can use the desiccant that in transparent resin, contains silica gel etc. as tabular desiccant; In addition, as the deliquescence desiccant, but example: calcium chloride, magnesium chloride, kali, sodium oxide molybdena, alum, magnesium sulphate, phosphorous oxide etc.Being accommodated in desiccant in bag shape portion and being preferably transparently, perhaps is transparent when hygroscopic property reaches capacity state, even opaque also wanting can be from the state of the indicator diagram at the identification back side between the particle of desiccant.
According to optimal way of the present invention, hygroscopic film is stacked contains the resin bed of desiccant and the film of thermoplastic base resin.
According to optimal way of the present invention, contain at least a above in zeolite, silica gel and the aluminium oxide in the hygroscopic film as desiccant.
According to optimal way of the present invention, saturating wet control film is a clarity films, and its moisture-vapor transmission is 0.01～5000g/m
2/ day.
Packaging bag with moisture absorption indicator function of the present invention, comprise the 1st packing and the 2nd packing, the bonding mutually and space that the formation article storing is used between them of the 1st packing and the 2nd packing, the transparent barrier film that the aqueous vapor barrier is arranged at the outermost of the 1st packing in the 1st packing and the 2nd packing at least, the 2nd packing have light reflection or light absorption film and in the inboard pattern printed layers that contains the moisture absorption indicator diagram of the bag of this film, at least one side's bag inside upper part is divided or all stacked resin film that contains desiccant because of the moisture absorption transparence in the 1st packing and the 2nd packing, so the transparency increases along with the moisture absorption of the resin film that contains desiccant.Therefore, when the inboard stacked resin film that contains desiccant of the bag of the 1st packing, the resin film that contains desiccant becomes transparent gradually, thereby can confirm to take in article, simultaneously can discern the moisture absorption indicator diagram of the pattern printed layers of tool deixis, and can confirm to reach boundary as the hygroscopic property of packaging bag.In addition, during the inboard stacked resin film that contains desiccant of the bag of the 2nd packing, can be when confirming to take in article in advance, moisture absorption indicator diagram that can the identification icon printed layers when the resin film that contains desiccant becomes transparent gradually because of moisture absorption, thus can confirm to reach boundary as the hygroscopic property of packaging bag.In addition; when all stacked when containing the resin film of desiccant on the 1st packing and the 2nd packing; can not discern from the outside and to take in article; but but when both hygroscopic property of the resin film that contains desiccant all reach capacity the moisture absorption indicator diagram of identification icon printed layers just, thereby protection is taken in article and is not made moist.In addition, contain the resin film of desiccant, thereby have the advantage that can keep the hygroscopic property in the packaging bag for a long time by all stacked on the 1st packing and the 2nd packing.Further, if there is aperture packaging bag in self, the resin film transparence of then stacked contain on the 1st packing and/or the 2nd packing desiccant, the moisture absorption indicator diagram manifests, thereby can easily judge the quality of packaging bag self, very effective for the management of content.
In addition, under the situation of the film of the resin bed of the resin film that contains desiccant to be stacked contain desiccant and thermoplastic resin, on the 1st packing during the stacked resin film that contains desiccant, also can keep desired hygroscopic property, and can keep containing the mechanical strength of the resin film of desiccant, can be corresponding to various uses.
Transparency barrier film is the film that has following each layer on film: the vapor-deposited film of the vapor-deposited film of lining silicon dioxide or aluminium oxide or their multilayer vapor-deposited film, silicon nitride film, be coated with the layer of barrier coating, perhaps apply the layer of barrier coating on vapor-deposited film, the moisture resistance of this transparency barrier film is counted 0.001～100g/m with moisture-vapor transmission
2/ day the time, the barrier property of the 1st packing and the 2nd packing and can be selected the moisture-proof characteristic of transparent barrier film according to desired hygroscopic property about equally, thus can provide can keep highly moistureproof can packaging bag.
In addition, light reflective film is the film with metallic luster that aluminum laminated film, aluminium-vapour deposition film, inorganic evaporated film or inorganic oxide evaporated film constitute; Perhaps light absorption film is laminated with following film, and described film is for coating or contain the film of light absorption material, the perhaps film of coating or stacked light absorption material, and its moisture-vapor transmission is 0.001～100g/m
2During/sky, by light absorption or light reflective film, make on bag inboard the color distortion of moisture absorption indicator diagram of stacked pattern printed layers become remarkable, contain the resin film moisture absorption of desiccant and the identity of moisture absorption indicator diagram when increasing photopermeability is good, and the barrier property of the 1st packing and the 2nd packing about equally, and can select the moisture-proof characteristic of transparent barrier film according to desired hygroscopic property, thereby can provide can keep highly moistureproof can packaging bag.
Pattern printed layers is the polyolefin film that is provided with on the resin film that contains desiccant or light reflection or light absorption film, the moisture absorption indicator diagram is a printing word on the one side at least of this polyolefin film, numeral, during pattern that figure or their appropriate combination form, perhaps, pattern printed layers is arranged on the resin film or light reflection or light absorption film that contains desiccant, the moisture absorption indicator diagram is a printing word on the one side at least of the resin film that contains desiccant or light reflection or light absorption film, numeral, during pattern that figure or their appropriate combination form, the resin film that contains desiccant reaches capacity along with the sucting wet state of contained desiccant and becomes transparent, if so reach the moisture absorption boundary, then can discern the moisture absorption indicator diagram, thereby have the advantage of moisture in the manageable content from the outside of packaging bag.In addition, the moisture absorption indicator diagram can show the preservation boundary of article, for example can mark " reached and preserved boundary " etc., also can be with this mark and figure combination, in addition, use the different literal of printing concentration, numeral etc., can be according to the identification successively from dense to light of its concentration degree, thereby can discern the preservation boundary, this management to content is an actv. interimly.In addition, in the pattern printed layers,, on the promptly opposite face background colour printed layers is set, can discerns the moisture absorption indicator diagram better thereby the optical concentration difference is increased with the moisture absorption indicator diagram by at its exterior side.
Contain in the resin film of desiccant, when containing at least a above in zeolite, silica gel and the aluminium oxide, can from these materials, suitably select, and can select harmless material according to purposes as desiccant.If containing the hygroscopic property of the resin film of desiccant reaches capacity, then the transparency becomes good, and the 2nd in the packing at stacked light reflective film in the outside of the resin film that contains desiccant or light absorption film, guarantee that fully optical concentration is poor, so when the hygroscopic property of the resin film that contains desiccant reaches capacity, even have so long as transparent a little color that has does not have dysgenic advantage to the moisture absorption indicator diagram yet.In addition, by containing adsorbents such as calcium oxide, calcium chloride, sulphate cpd, barium oxider, active carbon, clay compound in the degree of not damaging effect of the present invention, thereby can increase absorption property according to purpose.
In addition, on the 1st packing and the 2nd packing, the resin film that contains desiccant is set all, and the moisture-proof characteristic of the 1st packing is lower than under the situation of the 2nd packing, the resin film that contains desiccant of the 1st packing side becomes transparent earlier, after content becomes and can discern, it is transparent that the resin film that contains desiccant of the 2nd packing side just becomes gradually, thereby can discern the moisture absorption indicator diagram of its lower floor.In addition,, can continue for a long time to keep hygroscopic property by on the 1st packing and the 2nd packing, the resin film that contains desiccant being set all, thus the damp proof management that can take in article interimly.
By being made at least, the 1st packing or the 2nd packing have the shape of containing section at 2 positions, thereby facing when mixing the purposes used etc. before using at cmpd that will can cause the function deterioration etc. and liquid, can confirm the sucting wet state of the containing section of cmpd etc. because of moisture.
In addition, be the 1st packing if its structure is the face side of the article of taking in the packaging bag, the rear side of these article is the 2nd packing, then the moisture absorption indicator diagram covers on the surface of taking in article, thereby can not confirm to take in article, can not influence aesthetic appearance.
If light absorption film by the film that is printed with black ink or in thermoplastic base resin the film of mixed carbon black constitute, then strengthened the contrast with the color of moisture absorption indicator diagram, thereby made pattern have good identity.
In addition, if mix or be coated with light-scattering material containing on the resin film of desiccant, perhaps be coated with light-scattering material on transparent barrier film, then when the hygroscopic property of the desiccant of the resin film that contains desiccant reached capacity, it is excellent more that the identity of moisture absorption indicator diagram becomes.As light-scattering material, the material of preferred glass pearl, silicon dioxide, acrylic pearl equal sphere.
According to the desiccant with moisture absorption indicator function of the present invention, have and on barrier film, stacked gradually the pattern printed layers that is printed with the moisture absorption indicator diagram and because of the indication thin layer of the hygroscopic film of moisture absorption transparence; On the hygroscopic film of indication thin layer, have trunk drying prescription layer and moisture peretrability film, so do not use the harmful powder blue that contains heavy metal, just can be by causing the moisture absorption indicator diagram on the hygroscopic film transparence identification icon printed layers because of moisture absorption, thereby have the advantage of the sucting wet state that can indicate trunk drying prescription layer.In addition, dispose the pattern printed layers that usefulness is indicated in moisture absorption by a side, and coat, thereby have the advantage that to indicate sucting wet state from trunk drying prescription layer side with barrier film in hygroscopic film.
Further, if the hygroscopic property of trunk drying prescription layer reaches capacity, then the hygroscopic property of the desiccant that is mixed in the hygroscopic film also reaches capacity and becomes transparent, thereby can discern the moisture absorption indicator diagram from the outside of this desiccant, have that only this desiccant is put into just can be easily to taking in the advantage that article carry out damp proof management in container etc. in the container.In addition, the moisture absorption indicator diagram shows the preservation boundary of article, for example can mark the mark of " reached preserve boundary " etc., also can be with this mark and figure combination, in addition, use the different literal of printing concentration degree, numeral etc., can be according to the identification successively from dense to light of its concentration degree, thereby can discern the preservation boundary, this management to content is an actv. interimly.
In addition, the hygroscopic property that is laminated with this hygroscopic film of control on hygroscopic film reaches capacity in the embodiment of saturating wet control film of time, owing to there is saturating wet control film, moisture through the moisture peretrability film is at first absorbed by trunk drying prescription layer, after the hygroscopic property of trunk drying prescription layer reaches capacity, hygroscopic film is saturated can be controlled thereby make through the moisture of saturating wet control film, therefore can discern the moisture absorber pattern after the hygroscopic property of trunk drying prescription reaches capacity.
Become under bag situation of shape portion forming the space between trunk drying prescription layer and the hygroscopic film or between trunk drying prescription layer and saturating wet control film, can take in the small pieces that show desiccant when in the bag shape portion desiccant being arranged.
When being transparent desiccant film, trunk drying prescription layer forms film like or sheet, trunk drying prescription layer is shaped to tabular when being transparent desiccant formed body or arbitrary shape such as bag shape, the desiccant that will meet this shape is received in the container or packaging body of different shape, can indicate the drying property in container or the packaging body.
In addition, if periphery or moisture peretrability film and the saturating wet peripheric sealing shape pouch portion that controls film with moisture peretrability film and hygroscopic film, this granular or tabular desiccant or deliquescence desiccant pack in this bag shape portion into as trunk drying prescription layer, then can improve the hygroscopic property of desiccant.
If hygroscopic film contains the resin bed of desiccant and the film of thermoplastic base resin constitutes by stacked, then the mechanical strength of hygroscopic film itself becomes fully, and can improve the flatness on hygroscopic film surface.
When the desiccant that mixes in the hygroscopic film contains at least a above in zeolite, silica gel and the aluminium oxide, when being discarded in the living environment, desiccant can not produce harmful effect to human body.
In addition, if the control film that will wet is thoroughly made clarity films, use its moisture-vapor transmission at 0.01～5000g/m
2Film in the scope in/sky is then by the saturating wet hygroscopic property that film can at random be set required desiccant of controlling.
Description of drawings
[Fig. 1] Fig. 1 (a) is the portions cut oblique drawing of an embodiment of the packaging bag with moisture absorption indicator function of the present invention; Fig. 1 (b) is the desiccant hygroscopic property that contains the resin film of desiccant when reaching capacity, and presents the portions cut oblique drawing of the packaging bag of moisture absorption indicator diagram.
[2] Fig. 2 (a)～Fig. 2 (d) is the section drawing of the form of the 1st packing of the respectively embodiment of presentation graphs 1 (a) and Fig. 1 (b) and the 2nd packing.
[Fig. 3] Fig. 3 (a) is the portions cut oblique drawing of another embodiment of the packaging bag with moisture absorption indicator function of the present invention; Fig. 3 (b) is the desiccant hygroscopic property that contains the resin film of desiccant when reaching capacity, and presents the portions cut oblique drawing of the packaging bag of moisture absorption indicator diagram.
[Fig. 4] Fig. 4 (a) and Fig. 4 (b) are the section drawings of the form of the 1st packing of respectively another embodiment of presentation graphs 3 (a) and Fig. 3 (b) and the 2nd packing.
[Fig. 5] Fig. 5 is the section drawing of an embodiment of the expression desiccant with moisture absorption indicator function of the present invention.
[Fig. 6] Fig. 6 is the section drawing of another embodiment of the expression desiccant with moisture absorption indicator function of the present invention.
[Fig. 7] Fig. 7 (a) and Fig. 7 (b) are the section drawings of representing another embodiment of the desiccant with moisture absorption indicator function of the present invention respectively, and these embodiments have a bag shape portion.
[Fig. 8] Fig. 8 (a) and Fig. 8 (b) are illustrated in the section drawing of taking in the embodiment of desiccant in bag shape portion.
[Fig. 9] Fig. 9 is the oblique drawing of the embodiment of Fig. 8 (b).
[Figure 10] Figure 10 is existing fragmentary cross sectional view with desiccant of moisture absorption indicator function.
[Figure 11] Figure 11 is the existing fragmentary cross sectional view with packaging body of moisture absorption indicator function of expression.
Nomenclature
1 hygroscopic agent sheet
2 hygroscopic property atmidoscopes
3 barrier films
4 bags
6 hollow containers
7 internal containers
The 7a synthetic zeolite
8 lids
10 the 1st packing
11 contain the resin film of desiccant
12 transparent barrier films
13 sealing films
20 the 2nd packing
21 contain the resin film of desiccant
22 thermoplastic resin membranes
23 pattern printing films
24 light reflective films or light absorption film
25 transparent barrier films
30 moisture absorption indicator diagrams
40 heat-sealing portions
45 spaces
61 transparent desiccant films (trunk drying prescription layer)
64 moisture peretrability films
65 bags of shape portions
66 silica gel
70 indication thin layers
71 hygroscopic film
73 pattern printed layers
75 barrier films
76 moisture peretrabilitys control film
80 moisture absorption indicator diagrams
75 barrier films
76 saturating wet control films
The A article
The specific embodiment
Below in conjunction with accompanying drawing the embodiment with packaging bag of moisture absorption indicator function of the present invention is described.In the embodiment of the packaging bag with moisture absorption indicator function of the present invention, roughly divide into following two kinds of packaging bags and be described, described packaging bag is: the film that the packaging bag of the film with functions/drying is set and has a functions/drying in packaging bag face side (taking in the face side of article) is not arranged on the face side of packaging bag and only is arranged on the packaging bag of the rear side (taking in the rear side of article) of packaging bag.
At first, Fig. 1 (a) and Fig. 1 (b) are the portions cut oblique drawings of an embodiment of the packaging bag with moisture absorption indicator function of the present invention, Fig. 1 (a) expression keeps the hygroscopic state in the packaging bag, the state that hygroscopic property in Fig. 1 (b) expression packaging bag reaches capacity can be discerned moisture absorption indicator diagram 30.The packaging bag of present embodiment is provided with the resin film that contains desiccant on the 1st packing 10 of the face side of packaging bag, the periphery of the 1st packing 10 and the 2nd packing 20 is sealed to four limit bags with heat-sealing portion 40, packs in the space (in the bag) 45 of 20 of the 1st packing 10 and the 2nd packing and takes in article A.In the present embodiment just like the various forms shown in Fig. 2 (a)～Fig. 2 (d).These packaging bags are will be cut into arbitrary dimension to take in article A after the three limits heat-sealing of the 1st square packing 10 and the 2nd packing 20, and the heat-sealing of the one side that will be left again makes it to seal that the back uses has moisture-proof characteristic and have the packaging bag of moisture absorption indicator function.
Each embodiment of next coming in order instruction diagram 2 (a)～Fig. 2 (d).In the embodiment of Fig. 2 (a), packaging bag comprises the 1st packing 10 and the 2nd packing 20, the 1st packing 10 are the stacked resin film 11 of desiccant and the laminate film of transparent barrier film 12 of containing, and transparent barrier film 12 coats the outermost of the 1st packing 10 sides.The 2nd packing 20 are the laminate film of thermoplastic resin membrane's (sealing film) 22, pattern printing film 23 and light reflection or light absorption film 24.When the resin combination that contains zeolite in use was configured as the resin film 11 that contains desiccant, the resin film 11 that contains desiccant was the films that will be layered in its one side or two sides after polyolefin (for example LLDPE) coextrusion.By at the stacked polyolefin resin layer of the one or both sides of the resin combination that contains zeolite, can improve the intensity of the 1st packing 10, can make the thin film planar of the resin combination that contains zeolite smooth, can make the transparent feel of transparent barrier film 12 more obvious.
The transparent barrier film 12 of the 1st packing 10 can use mylar, for example: polyethylene terephthalate (PET) film.In addition, transparency barrier film 12, preferred water steam or gas barrier film, for example: the film of the evaporated film of silicon dioxide or aluminium oxide etc., spraying plating nitride, plating K film (being coated with the film of vinylidene chloride-vinyl chloride copolymer latex), OPP film (biaxial stretch-formed polypropylene film), OPE film (stretching polyethylene film) etc.In addition, also can use fluorine-type resin films such as co-extrusion film, polyimide, polycarbonate, PPS (polyphenylene sulfide), PES engineering plastics such as (polyether thioureas) class film, PTFE etc.The moisture resistance of this transparency barrier film 12, preferred moisture-vapor transmission is at 0.001～100g/m
2In the scope in/sky.
The resin film 11 that contains desiccant is made as follows.At first, mix the zeolite of 5～80 weight % in the matrix resin, further add ethylene-acrylate copolymer-maleic anhydride etc. as additive with mixture ratio 1～20 weight %, be shaped to film like then for the compatibility that improves them.When containing the resin film moulding of desiccant, will be layered in its one or both sides after polyolefin (for example LLDPE) coextrusion.It is the reasons are as follows: the independent in fact zeolite membrane of forming by matrix resin and zeolite, because film surface is the admixture of matrix resin and zeolite, so coarse, light transmission rate reduces.In addition, when only zeolite membrane being arranged, the speed that absorbs moisture in the atmosphere is very fast, be difficult to control arrive the saturated time, and film strength is relatively poor.Therefore, by being layered on the zeolite membrane after the film coextrusion with the such material of polyolefin, can improve the intensity of film integral, reduce the coarse of film surface, and suppressed the disengaging of crystallization of zeolites agglomerate, can also bring into play the more obvious effect of transparence of the zeolite membrane that causes because of moisture absorption.In addition, can also further control rate of moisture absorption by adhesive film with the material or the thickness of film.In addition, used here polyolefin is transparent.In addition, the mixture ratio of zeolite is preferably counted about 40～80% with weight ratio, more preferably count about 50～80% with weight ratio.
This matrix resin can use thermoplastic base resin, for example in LDPE (low density polyethylene (LDPE)), LLDPE (straight chain shape low density polyethylene (LDPE)), PP (polypropylene), the ionomer, EAA, EMAA, EVA, EEA, EMA, EMMA etc. as various interpolymers (copolymer) one or more are mixed and use, from described resin, suitably select to use contain high MFR (melt flow rate), preferably be resin more than 10 (g/10 minutes) at the MFR that measures under the condition of 190 ℃ of temperature, load 21.18N.
In addition, zeolite is the Powdered inorganic porous property material with fine pore of 3 to 10 , can be used as preferred adsorbent.Preferred its mean grain size of use for example is the zeolite about 10 μ m.Zeolite has polarity, is to be used for according to the difference of molecular size and the porous plasmid shape material of separate substance, and it has the structure of even pore, and absorption can enter into the little molecule in the hole of pore and play a kind of sieving actoion.In addition, desiccant also can be at least a above material that contains in calcium oxide, silica gel, calcium chloride, sulphate cpd, barium oxider, aluminium oxide, active carbon, the clay compound except that zeolite, preferably synthetic or natural zeolite.
Then, the 2nd packing 20 are described.The 2nd packing 20 are formed in the laminate film of the rear side of taking in article A, the bag inboard of the 2nd packing 20 is thermoplastic resin membrane 22, and thermoplastic resin membrane 22 exterior side stacks gradually pattern printing film 23, light reflective film or light absorption film 24.In addition, after reflection of lamination pattern printing film 23 and light or light absorption film 24, can also stacked thermoplastic resin membrane 22, can use stacked these films behind the suitable coetrusion.
For thermoplastic resin membrane 22, can use among for example LDPE (low density polyethylene (LDPE)), LLDPE (straight chain shape low density polyethylene (LDPE)), PP (polypropylene), PS (polystyrene), PMMA (polymethyl methacrylate), nylon, polyester (PET, PBT, PEN), PAN (polyacrylinitrile), ionomer, EAA, EMAA, EVA, EVOH, EEA, EMA, the EMMA etc. one or more to mix and use as various interpolymers (copolymer).In addition, also can use fluorine-type resins such as PTFE.When bonding the 1st packing 10 and the 2nd packing 20 and heat sealed perimeter made it to seal, thermoplastic resin membrane 22 can suitably select good material.
As light reflection or light absorption film 24, be to use in light reflective film or the light absorption film any one, this thin layer is with the layer that significant mode is set up that becomes of the optical concentration difference with moisture absorption indicator diagram 30.As light reflective film 24, can use aluminium foil, aluminium-vapour deposition film, tinfoil paper, tin evaporated film, nickel foil etc. to have metallic paper, the metal evaporation film of light reflective.
In addition, as light absorption film 24, can use the film of mixed carbon black aftershaping in printing film of black ink or the thermoplastic base resin.In addition, the printing ink that coating mixes as any one color in white, black, red, blue, green, yellow, the indigo of the background colour of moisture absorption indicator diagram 30, green grass or young crops, the magenta etc. or they on reverse side of this one side of the formation moisture absorption indicator diagram 30 of pattern printing film 23, pattern printing film 23 can have light absorption film 24 concurrently.Optical concentration difference when this background colour is used to make identification moisture absorption indicator diagram 30 becomes significantly, and the color of background colour is set at the form with the color compatibility of moisture absorption indicator diagram 30.Certainly, also can be coated with any one color in white, black, red, blue, green, yellow, indigo, green grass or young crops, magenta etc. or the printing ink of their secondary colour on the light absorption film 24.
The packaging bag of this embodiment is when taking in article A, and shown in Fig. 1 (a), the resin film that contains desiccant 11 of the 1st packing 10 is gonorrhoea before moisture absorption, can not take in article A and moisture absorption indicator diagram 30 from the outside identification of the 1st packing 10 sides.Its hygroscopic property is near saturated after moisture absorption if contain the desiccant of resin film 11 of desiccant, and the resin film 11 that then contains desiccant becomes transparent gradually, takes in article A thereby become to discern, and becomes simultaneously and can discern moisture absorption indicator diagram 30.Reach saturated state fully if contain the hygroscopic property of desiccant of the resin film 11 of desiccant, then shown in Fig. 1 (b), the resin film 11 that contains desiccant becomes almost transparent, thereby can discern the moisture absorption indicator diagram 30 that is printed as " KP " on the inner face of taking in article A and the 2nd packing 20.
By the way, moisture absorption indicator diagram 30 is as being printed as the pattern of literal such as " KP " in the accompanying drawing example, also can press figure, the pattern that forms of figure or their appropriate combination, along with desiccant moisture absorption contained in the resin film 11 that contains desiccant reaches capacity, this transparency that contains the resin film 11 of desiccant increases, and all can discern moisture absorption indicator diagram 30 when opening the package or outside bag.Moisture absorption indicator diagram 30 shows the preservation boundary of taking in article A, for example can mark the mark of " reached and preserved boundary ".In addition, can also be with this mark and combinations of patterns.In addition, use the different literal of printing concentration degree, numeral etc., can be the identification successively from dense to light of the corresponding concentration degree of sucting wet state according to transparency change with the resin film 11 that contains desiccant, thereby can discern the preservation boundary of taking in article A interimly, and then can take in the damp proof management of article A effectively.
In addition, in this embodiment, when having micropore in light reflection or light absorption film 24 or the transparent barrier film 12, extraneous moisture is invaded in the bag by this micropore, the hygroscopic property of desiccant that contains the resin film 11 of desiccant in the short period of time reaches capacity, contain desiccant resin film 11 become transparent in whole or in part, can discern moisture absorption indicator diagram 30, thereby this packaging bag of decidable does not have the function as damp proof bag.
Then, the embodiment of instruction diagram 2 (b).In addition, the part identical with above-mentioned embodiment is with identical symbolic representation.In this embodiment, be respectively equipped with the resin film that contains desiccant among both of the 1st packing 10 and the 2nd packing 20, at the inboard resin film 11 that contains desiccant that is provided with of the bag of the 1st packing 10, at the inboard resin film 21 that contains other desiccant that is provided with of the bag of the 2nd packing 20.In the outside of the resin film that contains desiccant 21 of the 2nd packing 20, stack gradually the pattern printing film 23, light reflection or the light absorption film 24 that are printed with moisture absorption indicator diagram 30.The resin film that contains desiccant 21 of the 2nd packing 20 is identical with the resin film that contains desiccant 11 in the embodiment of Fig. 2 (a).
In this embodiment, the resin film 11,21 that contains desiccant is set at the 1st packing 10 and the 2nd packing 20 on both respectively, just can not discern moisture absorption indicator diagram 30 as long as two hygroscopic propertys that contain desiccant contained in the resin film 11,21 of desiccant do not reach capacity.In addition, good for the identity that makes moisture absorption indicator diagram 30, need the optical concentration of expansion moisture absorption indicator diagram 30 poor, preferably stacked aluminium foil layer closes the high light reflective film of film isoreflectance 24 on the exterior side of pattern printing film 23.On the other hand, both last resin films 11,21 that contain desiccant that are provided with of the 1st packing 10 and the 2nd packing 20, though so also will rely on the performance of transparent barrier film 12, but whole surface covers with a resin film that contains desiccant in the bag, can keep function as damp proof bag for more time than the embodiment of Fig. 2 (a).
Then, the embodiment of instruction diagram 2 (c).In addition, the part identical with above-mentioned embodiment is with identical symbolic representation.In this embodiment, the 1st packing 10 are the same with above-mentioned embodiment to be transparent barrier film 12 and the duplexer that contains the resin film 11 of desiccant, the bag inboard of the 2nd packing 20 is provided with thermoplastic resin membrane 22, stack gradually the pattern printing film 23, light reflection or the light absorption film 24 that are printed with moisture absorption indicator diagram 30 on thermoplastic resin membrane 22 the outside, and transparent barrier film 25.In this embodiment,, become the packaging bag of the hygroscopic property that can keep the resin film 11 that contains desiccant for a long time at the stacked transparent barrier film 12,25 of the outermost of packaging bag.
The barrier film 25 of the 2nd packing 20 of this embodiment preferably has the film of barrier properties for gases, it is transparent not necessarily leaveing no choice but, and for example can use metal evaporation films such as aluminum laminated film, aluminium-vapour deposition film, inorganic evaporated film, inorganic oxide evaporated film, plating K film (being coated with the film of vinylidene chloride-vinyl chloride copolymer latex), OPP film (biaxial stretch-formed polypropylene film), OPE film (stretching polyethylene film) etc.In addition, also can use fluorine-type resin films such as co-extrusion film, polyimide, polycarbonate, PPS (polyphenylene sulfide), PES engineering plastics such as (polyether thioureas) class film, PTFE etc.Like this by coating the 1st packing 10 and the 2nd packing 20 both outside faces with barrier film, the hygroscopic property that contains the resin film 11,21 of desiccant can be arrived the saturated time for example be controlled at 1 day to the scope more than 100 days.In addition, the barrier property that makes the 1st packing 10 and the 2nd packing 20 and is selected the moisture-proof characteristic of transparent barrier film 12,25 according to desired hygroscopic property about equally, thereby keeps the packaging bag of moisture-proof characteristic with can making semipermanent.
In addition, the transparent barrier film 12 of the 1st packing 10 uses the film identical with above-mentioned embodiment.The transparent barrier film 12 of the 1st packing 10 requires the transparency, so can not use the film of light reflective such as aluminum laminated film, but can use the film that on film, has following each layer: the vapor-deposited film of the vapor-deposited film of lining silicon dioxide or aluminium oxide or their multilayer vapor-deposited film, silicon nitride, be coated with the layer of barrier coating; Perhaps apply the layer of barrier coating on vapor-deposited film, the moisture resistance of this transparency barrier film 12 is counted 0.001～100g/m with moisture-vapor transmission
2/ day.
Then, the embodiment of instruction diagram 2 (d).In addition, the part identical with above-mentioned embodiment is with identical symbolic representation.In the present embodiment, transparent barrier film 12,25 is set at the 1st packing 10 and the 2nd packing 20 on both respectively, and the resin film 11 that contains desiccant is set on the 1st packing 10, the resin film 21 that contains desiccant is set on the 2nd packing 20.Identical in the resin film 11,21 that contains desiccant and the above-mentioned embodiment contains the two sides of the resin film of desiccant with the polyolefin resin lining.In the outside of the resin film that contains desiccant 21 of the 2nd packing 20, stack gradually the pattern printing film 23, light reflection or the light absorption film 24 that are printed with moisture absorption indicator diagram 30, and transparent barrier film 25.
In this embodiment, at the 1st packing 10 of packaging bag and the stacked transparent barrier film 12,25 of outermost of the 2nd packing 20, compare with the embodiment of Fig. 2 (b), can keep the hygroscopic property of the resin film 11,21 that contains desiccant for more time.In addition, on the 1st packing 10 and the 2nd packing 20, the resin film 11,21 that contains desiccant is set respectively, the identity that makes moisture absorption indicator diagram 30 is variation more or less, so poor in order to enlarge optical concentration, preferably at light reflective films 24 such as the stacked aluminium foil laminate films of the exterior side of pattern printing film 23.In addition, by polyolefin coated resin on the surface of the resin film 11,21 that contains desiccant, identity is improved.
Then, shown in Fig. 3 (a) and Fig. 3 (b), the embodiment with packaging bag of moisture absorption indicator function of the present invention is described.Fig. 3 (a) and Fig. 3 (b) are the portions cut oblique drawings of the packaging bag of present embodiment, around the 1st packing 10 and the 2nd packing 20 four limits with 40 sealings of heat-sealing portion, the 45 article A that pack in the packaging bag.The example of present embodiment is shown in Fig. 4 (a) and Fig. 4 (b).Present embodiment is different with the embodiment of Fig. 2 (a)～Fig. 2 (d), and the 1st packing 10 are transparent laminate film, and the resin film 21 that contains desiccant is arranged on the 2nd packing 20.Shown in Fig. 3 (a), can discern from the outside of packaging bag and to take in article A.In addition, the state of the hygroscopic property of the resin film 21 that contains desiccant is kept in Fig. 3 (a) expression, can not discern the moisture absorption indicator diagram 30 of the bag inner face of the 2nd packing 20.Fig. 3 (b) can discern moisture absorption indicator diagram 30, the hygroscopic property of resin film 21 that expression the contains desiccant state that reaches capacity.
Each embodiment of following instruction diagram 4 (a) and Fig. 4 (b).In addition, the part identical with above-mentioned embodiment is with identical symbolic representation.In the embodiment of Fig. 4 (a), the 1st packing 10 are the laminate films that are laminated as the outermost transparent barrier film 12 of packaging bag and thermoplastic resin membrane's (sealing film) 13.The 2nd packing 20 are the pattern printing films 23 that are brushed with moisture absorption indicator diagram 30 at the outside layer double exposure of the resin film 21 that contains desiccant, stacked light reflection or light absorption film 24 on pattern printing film 23.Thermoplastic resin membrane 13 is identical with the thermoplastic resin membrane 22 of the embodiment of Fig. 2 (a) or Fig. 2 (c), selects the good material of leak tightness.
In addition, in the embodiment of Fig. 4 (b), the 1st packing 10 are laminate films that stacked thermoplastic resin membrane (sealing film) 13 forms on outermost transparent barrier film 12.The 2nd packing 20 stack gradually pattern printing film 23, light reflection or light absorption film 24 and the transparent barrier film 25 that is printed with moisture absorption indicator diagram 30 in the outside of the resin film 21 that contains desiccant.In this embodiment, the outermost layer of packaging bag coats with barrier film 12,25.The barrier film 12 of the 1st packing 10 is transparent, and it is transparent that the barrier film 25 of the 2nd packing 20 is not necessarily leaveed no choice but, so long as the film of aqueous vapor excellent in barrier property gets final product.
In the embodiment of Fig. 4 (a) and Fig. 4 (b), the resin film 21 that contains desiccant is set on the 2nd packing 20, the resin film 21 that contains desiccant is gonorrhoea, when its desiccant moisture absorption and the state that reaches capacity, then become transparent from gonorrhoea, by becoming the transparent resin film that contains desiccant 21 in the 2nd packing 20, but the moisture absorption indicator diagram 30 of identification icon printing film 23.
In addition, same with above-mentioned embodiment, in the embodiment of Fig. 4 (a) and Fig. 4 (b), the resin film 21 that closes desiccant also can use the resin combination that contains zeolite, will be layered on its one or both sides after polyolefin (for example LLDPE) coextrusion.
In addition, if on the transparent barrier film 25 of the 2nd packing 20, use mylar, then has barrier, so can control from the moisture absorption on single face or two sides by laminated polyester film for seeing through of moisture.In addition, the transparent membrane of the transparent barrier film 12 preferred gas barriers of the 1st packing 10, for example: inorganic evaporated film, inorganic oxide evaporated film, plating K film (being coated with the film of vinylidene chloride-vinyl chloride copolymer latex), OPP film (biaxial stretch-formed polypropylene film), OPE film (stretching polyethylene film) etc.In addition, also can use fluorine-type resin films such as co-extrusion film, polyimide, polycarbonate, PPS (polyphenylene sulfide), PES engineering plastics such as (polyether thioureas) class film, PTFE etc.In addition, transparency barrier film 12 is at the film that has following each layer on the film: be covered with the vapor-deposited film of silicon dioxide or aluminium oxide or their multilayer vapor-deposited film, silicon nitride vapor-deposited film, be coated with the layer of barrier coating or on vapor-deposited film, apply the layer of barrier coating, the moisture resistance of transparent barrier film 12 is counted 0.001～100g/m with moisture-vapor transmission
2/ day.Like this by coat the 1st packing 10 and both outside faces of the 2nd packing 20 with barrier film, according to taking in the desired hygroscopic property of article A, the moisture absorption that contains the resin film 21 of desiccant can be arrived the saturated time for example be controlled at 1 day to the scope more than 100 days.
In addition, packaging bag of the present invention as above-mentioned embodiment, is that as the shape of packaging bag, for example the 2nd packing can be shaped to case shape or tubular with the packaging bag that is provided with the incorporating section at a position of the heat-sealing of four limits around the 1st and the 2nd packing.In addition, can also be the shape that the incorporating section is set at two positions, at this moment can will require the goods of moisture-proof characteristic and not have the goods of damp proof essentiality to be packaged into a pair of.In addition, do not use harmful heavy metal in the surface treatment of transparent barrier film and the desiccant.
Further, among the present invention, can contain mixing or coating light-scattering material on the resin film of desiccant, thereby make the identity of indicator diagram become good by the light-scattering material of coated glass pearl, silicon dioxide, acrylic pearl equal sphere on transparent barrier film.
Then, with reference to the description of drawings embodiment with desiccant of moisture absorption indicator function of the present invention.
At first, with reference to Fig. 5, an embodiment with desiccant of moisture absorption indicator function of the present invention is described.The desiccant of present embodiment, as shown in Figure 5, stacked transparent desiccant film (trunk drying prescription layer) 61, further stacked moisture peretrability film 64 on transparent desiccant film 61 on indication thin layer 70 as the trunk drying prescription.Indication thin layer 70 is that the pattern printed layers 73 that stacks gradually moisture absorption indication usefulness on barrier film 75 forms with the hygroscopic film 71 that contains zeolite.Transparency desiccant film 61 is to be layered on the hygroscopic film 71 of indication thin layer 70.
In addition, barrier film 75, it is the film that is used to interdict from the moisture that influences hygroscopic film 71 of pattern printed layers 73 sides, can use mylar, polyethylene terephthalate (PET) film for example, preferred water steam or gas barrier film, for example: the evaporated film of silicon dioxide or aluminium oxide etc., the film of spraying plating nitride, the film of stacked aluminium foil and thermoplastic film, plating K film (being coated with the film of vinylidene chloride-vinyl chloride copolymer latex), OPP film (biaxial stretch-formed polypropylene film), OPE film (stretching polyethylene film) etc.In addition, also can use fluorine-type resin films such as co-extrusion film, polyimide, polycarbonate, PPS (polyphenylene sulfide), PES engineering plastics such as (polyether thioureas) class film, PTFE etc.The moisture-proof characteristic of this barrier film 75 is preferably counted 0.001～100g/m with moisture-vapor transmission
2The scope in/sky.
In addition, pattern printed layers 73 is pattern printed layers that printing moisture absorption indicator diagram 80 forms on the thermoplastic resin membrane.Moisture absorption indicator diagram 80, can be printed on the inner face side of hygroscopic film 71 or barrier film 75 above.The moisture absorption indicator diagram 80 of pattern printed layers 73 is patterns that printing word, numeral, figure or their appropriate combination form.In addition, on the face that forms moisture absorption indicator diagram 80 on the pattern printed layers 73, coating is as any one color in white, black, red, blue, green, yellow, the indigo of the background colour of moisture absorption indicator diagram 80, green grass or young crops, the magenta etc. or the printing ink of their secondary colour.Optical concentration difference when this background colour is used to make identification moisture absorption indicator diagram 80 becomes significantly, the color of background colour with the form setting of the color compatibility of moisture absorption indicator diagram 80.In addition, in the used printing ink, the weight ratio of pigment or dyestuff and resin is 0.01～200 weight % during printing moisture absorption indicator diagram 80, and its thickness is the scope of 0.3 μ m～100 μ m.
When using desiccant for example the resin combination of mixed zeolite is shaped to the hygroscopic film 71 that contains zeolite, will be layered on the one or both sides of hygroscopic film 71 after polyolefin (for example LLDPE) coextrusion.Zeolite is the Powdered inorganic porous property material with fine pore of 3 to 10 , can be used as preferred adsorbent.Preferred its mean grain size of use for example is the zeolite about 10 μ m.Zeolite has polarity, is to be used for according to the difference of molecular size and the porous plasmid shape material of separate substance, and for having the structure of even pore, absorption can enter into the little molecule in the hole of pore and play a kind of sieving actoion.In addition, desiccant contained in the hygroscopic film 71 is except that zeolite, can also be at least a above material that contains in calcium oxide, silica gel, calcium chloride, sulphate cpd, barium oxider, aluminium oxide, active carbon, the clay compound, preferably synthetic or natural zeolite.
The manufacture method of hygroscopic film 71 is as follows.At first, mix the zeolite of 5～80 weight % in the matrix resin, adding as aftershapings such as additive-treated oil ethylene-acrylate copolymer-maleic anhydrides with mixture ratio 1～20 weight % for the compatibility that improves them then is film like.When containing the resin film moulding of zeolite, will be layered on the one or both sides of hygroscopic film 71 after polyolefin (for example LLDPE) coextrusion.In addition, the mixture ratio of zeolite is preferably counted about 40～80 weight % with weight ratio, further preferably counts about 50～80 weight % with weight ratio, thereby can improve the hygroscopic property of hygroscopic film itself, and further can improve the disguise of the moisture absorption indicator diagram before the moisture absorption.
In addition, this matrix resin can use thermoplastic base resin, for example: one or more among LDPE (low density polyethylene (LDPE)), LLDPE (straight chain shape low density polyethylene (LDPE)), PP (polypropylene), the ionomer as various interpolymers (copolymer), EAA, EMAA, EVA, EEA, EMA, the EMMA etc. mix to use, from described resin, suitably select to use contain high MFR (melt flow rate), preferably be resin more than 10 (g/10 minutes) at the MFR that measures under the condition of 190 ℃ of temperature, load 21.18N.
In addition, transparent desiccant film 61 as trunk drying prescription layer, can use the material that in thermoplastic base resin, mixes as the silicon dioxide (silica gel) of trunk drying prescription, silicon dioxide (silica gel) most preferably, but the micro mist such as calcium oxide, calcium chloride, sulphate cpd, barium oxider that can also use other is as the trunk drying prescription.
On the other hand, as modified embodiment of the present embodiment, the transparent desiccant film 61 as trunk drying prescription layer can be replaced with transparent desiccant formed body.This transparency desiccant formed body can use the formed body of sneaking into the silicon dioxide (silica gel) as typical example in the thermoplastic base resin, and transparent desiccant formed body uses forming mould to carry out moulding.Comprise sheet, tabular or bar-shaped formed body in the transparency desiccant formed body, also comprise the formed body of unsetting shape.Bar-shaped transparent desiccant formed body for example is the section quadrangle, stacked moisture peretrability film 64 on the one side of this transparency desiccant formed body, on another side to the stacked indication thin layer 70 of hygroscopic film 71 sides.
In these embodiments, along with the hygroscopic property of transparent desiccant film 61 or the transparent desiccant formed body state that reaches capacity, but moisture absorption indicator diagram 80 from the outside identification icon printed layers 73 of desiccant, in the time of can discerning this moisture absorption indicator diagram 80 from the outside, the hygroscopic property that the means desiccant state that reaches capacity.
Then, with reference to Fig. 6 another embodiment with desiccant of moisture absorption indicator function of the present invention is described.Present embodiment as shown in Figure 6, in the above-described embodiment as stacked wet control film 76 between the transparent desiccant film 61 of trunk drying prescription layer or transparent desiccant formed body and the hygroscopic film 71.Saturating wet control film 76 is clarity films, for example can use the polyethylene terephthalate (PET) as thermoplastic base resin.As other thermoplastic base resin, can use: polyethylene (PE), polypropylene (PP), polyvinylchloride (PVC), nylon (Ny), ethane-acetic acid ethyenyl ester (EVA), polystyrene (PS), ethylene-vinyl alcohol copolymer (EVOH), polyvinylidene chloride (PVDC).As saturating wet control film 76, also can use the cellophane of hygroscopic property and excellent moisture permeability.
Use the saturating wet control film 76 of above-mentioned thermoplastic base resin or cellophane; during keeping as the hygroscopic property of the transparent desiccant film 61 of trunk drying prescription or transparent desiccant formed body, play as protective film prevent hygroscopic film 71 hygroscopic property than the first saturated effect of trunk drying prescription.Compare with hygroscopic film 71, the time length of the hygroscopic property of transparency desiccant film 61 or transparent desiccant formed body is longer, so by the saturating wet control film 76 of lining on hygroscopic film 71, thereby can control the time length of the hygroscopic property of hygroscopic film 71, the control of this time length is by suitable selection and set the heat of steam plastic resin or the thickness of cellophane and the intrinsic hydroscopicity of these materials carry out.Saturating wet control film 76 can select its steam transmitance at 0.01～5000g/m
2Film in the/day scope, the use of saturating wet control film 76 has the following advantages: can set the desired hygroscopic property as desiccant of the desiccant with moisture absorption indicator function arbitrarily.
Fig. 7 (a) and Fig. 7 (b) expression another embodiment with desiccant of moisture absorber function of the present invention.In the embodiment shown in Fig. 7 (a), the bag shape portion 65 that forms the space is set between lamination.Can take in the small pieces that show desiccant when in this bag shape portion 65 desiccant being arranged.In the embodiment of Fig. 5, on the hygroscopic film 71 of the indication thin layer 70 that hygroscopic film 71, pattern printed layers film 73 and barrier film 75 are laminated, stack gradually transparent desiccant film 61 and moisture peretrability film 64; In the embodiment of Fig. 7 (a), between hygroscopic film 71 and transparent desiccant film 61, a bag shape portion 65 is set.In the present embodiment, in the face of hygroscopic film 71 and transparent desiccant film 61, the sheet and the edge that is laminated with the sheet of transparent desiccant film 61 and moisture peretrability film 64 of heat-sealing indication thin layer 70.
The embodiment of Fig. 7 (b) is corresponding to the embodiment of Fig. 6, so between transparent desiccant film 61 and saturating wet control film 76, a bag shape portion 65 is set, in the face of transparent desiccant film 61 and wet thoroughly control film 76, seal this sheet that is laminated with moisture peretrability film 64 and transparent desiccant film 61 and the stacked wet edge of controlling the sheet of film 76 on indication thin layer 70.In addition, in the embodiment of Fig. 7 (a) and Fig. 7 (b), for making bag shape portion 65 more obvious, the sheet of moisture peretrability film 64 and transparent desiccant film 61 will be laminated with, be laminated with the wet sheet of controlling film 76 with the sheet of indicating thin layer 70 or on indication thin layer 70 and expand into graphic curved shape respectively, the face shaping integral body of desiccant is sheet.
As Fig. 8 (a), Fig. 8 (b) and other embodiment shown in Figure 9, filling molding is spherical transparent silica gel 66 in the bag shape portion 65.In the embodiment of Fig. 8 (a), by the hygroscopic film 71 and the moisture peretrability film 64 shape pouch portions 65 of indication thin layer 70, toward this bag shape portion 65 interior filling gels 66.In addition, in the embodiment of Fig. 8 (b), by the sheet and the moisture peretrability film 64 shape pouch portions 65 of stacked wet control film 76 on the hygroscopic film 71 of indication thin layer 70, toward this bag shape portion 65 interior filling gels 66.This silica gel 66 even sucting wet state reaches capacity, can not judge whether it loses the function as desiccant from as transparent.Certainly silica gel 66 also can be column or tabular.On pattern printed layers 73, print the moisture absorption indicator diagram 80 that for example is printed on " Kp ", during the maintenance hygroscopic property, can not discern moisture absorption indicator diagram 80 from the outside, but when the hygroscopic property of hygroscopic film 71 reaches capacity, can discern the moisture absorption indicator diagram 80 of " Kp ", promptly judge the function that loses as desiccant.In addition, the moisture absorption indicator diagram 80 of pattern printed layers 73 be with above-mentioned embodiment in identical pattern.In addition, the desiccant of taking in the bag shape portion 65, it is transparent not necessarily leaveing no choice but, as long as become transparent when hygroscopic property reaches capacity state, can discern the part that its back side contains the pattern printed layers 7 of moisture absorption indicator diagram 80 when perhaps being received in bag shape portion 65, then can be opaque desiccant.
In addition, moisture absorption indicator diagram 80 is as being printed with the pattern of literal such as " KP " in Fig. 9 example, also can press figure, the pattern that forms of figure or their appropriate combination, along with desiccant moisture absorption contained in the hygroscopic film 71 reaches capacity, the transparency of this hygroscopic film 71 increases, and can discern moisture absorption indicator diagram 80.Moisture absorption indicator diagram 80 for example can mark the mark of " reached and preserved boundary ".In addition, can also be with this mark and combinations of patterns.In addition, use the different literal of printing concentration degree, numeral etc., can from dense to light, discern successively according to its concentration degree, thereby can discern sucting wet state interimly.
In addition, in the graphic embodiment, fill silica gel 66 in the bag shape portion 65, also can use the deliquescence desiccant in addition as desiccant.As the deliquescence desiccant, can enumerate: calcium chloride, magnesium chloride, kali, sodium oxide molybdena, alum, magnesium sulphate, phosphorous oxide etc.Become transparent aqueously after the moisture absorption of deliquescence desiccant, can discern moisture absorption indicator diagram 80 by the material of fluidization like this.In addition, as long as these desiccant are hygroscopic property bleach when reaching capacity state.
Embodiment
Embodiment to packaging bag of the present invention describes.At first, material used among the following embodiment is described.Transparency barrier film uses the PETsio of steam coating silicon dioxide on the PET film
xFilm, its thickness are 12 μ m, at this PETsio
xStacked thickness is the LDPE (low density polyethylene (LDPE)) of 40 μ m on the film.Its moisture-vapor transmission is 0.1g/m
2/ day.This transparency barrier film is equivalent to the transparent barrier film 12 of the 1st packing 10 in the embodiment of Fig. 2 (a)～Fig. 2 (d), Fig. 4 (a) and Fig. 4 (b).
The duplexer of transparency barrier film/the contain resin film of desiccant is stacked following two kinds of duplexers that film forms, and described film is: by the PETsio of thickness 12 μ m
xThe transparent barrier film that film constitutes and on the two sides of the resin bed that contains desiccant of thickness 60 μ m the film of the LDPE of stacked thickness 10 μ m.This resin bed that contains desiccant is by LDPE: zeolite constitutes with weight ratio at 1: 1.Transparency barrier film/contain the duplexer of the resin film of desiccant, its moisture-vapor transmission is 0.2g/m
2/ day, be equivalent to the 1st packing 10 in the embodiment of Fig. 2 (a)～Fig. 2 (d).
Aluminium-vapour deposition film (PETAL) be with aluminium-vapour deposition on the PET film and the film of the thickness 50 μ m that obtain, its moisture-vapor transmission is 1.0g/m
2/ day, be equivalent to the light reflective film 24 in the embodiment of Fig. 2 (a)～Fig. 2 (d), Fig. 4 (a) and Fig. 4 (b).
The duplexer of light absorption film/transparent barrier film is the duplexer that stacked above-mentioned transparent barrier film forms on the light absorption film that is printed with black ink on the PET film of thickness 100 μ m, and its moisture-vapor transmission is 0.05g/m
2/ day, be equivalent to light absorption film 24 and transparent barrier film 25 in the embodiment of Fig. 2 (c), Fig. 2 (d) and Fig. 4 (b).
The duplexer of aluminium-vapour deposition film/transparent barrier film is at above-mentioned aluminium-vapour deposition film (PET
AL) go up the duplexer that stacked above-mentioned transparent barrier film forms, its moisture-vapor transmission is 0.02g/m
2/ day, be equivalent to light reflective film 24 and transparent barrier film 25 in the embodiment of Fig. 2 (c), Fig. 2 (d) and Fig. 4 (b).
The aluminium foil laminate film is the PET film of stacked thickness 12 μ m on the aluminium foil of thickness 9 μ m, and its moisture-vapor transmission is 0.00g/m
2/ day, be equivalent to the light reflective film 24 in the embodiment of Fig. 2 (a)～Fig. 2 (b), Fig. 4 (a) and Fig. 4 (b).
The pattern printing film is the film of printing moisture absorption indicator diagram on the PET film of thickness 25 μ m, is equivalent to the pattern printing film 23 in the embodiment of Fig. 2 (a)～Fig. 2 (d), Fig. 4 (a) and Fig. 4 (b).
The thermoplastic resin membrane is made of the ldpe film of thickness 40 μ m, and its moisture-vapor transmission is 10g/m
2/ day, be equivalent to thermoplastic resin membrane 22 or sealing film 13 in the embodiment of Fig. 2 (a), Fig. 2 (c), Fig. 4 (a) and Fig. 4 (b).
Embodiment 1 is: the 1st packing 10 are the duplexer of transparent barrier film/sealing film, the duplexer (Fig. 4 (a)) that the 2nd packing 20 constitute for the resin film/pattern printing film/aluminium foil laminate film that contains desiccant.
Embodiment 4 is: the 1st packing 10 are the duplexer of transparent barrier film/sealing film, the duplexer (Fig. 4 (b)) that resin film/pattern printing film/light absorption film/transparent barrier film constitute of the 2nd packing 20 for containing desiccant.
Embodiment 5 is: the 1st packing 10 are transparent barrier film/the contain duplexer of the resin film of desiccant, the duplexer (Fig. 2 (b)) that the 2nd packing 20 constitute for the resin film/pattern printing film/aluminium foil laminate film that contains desiccant.
Embodiment 9 is: the 1st packing 10 are transparent barrier film/contain the duplexer of the resin film of desiccant, and the 2nd packing 20 be the duplexer (Fig. 2 (a)) of sealing film/pattern printing film/aluminium foil laminate film formation.
After each of embodiment 1～12 be cut into the square of 10cm * 10cm to duplexer, with this duplexer that blocks as the 1st packing 10 and the 2nd packing 20 and overlapping, make packaging bag after sealing four limits, 40 ℃ of room temperatures, under the humidity 90%RH, thus by the time that mensuration begins to demonstrate the moisture absorption indicator diagram try to achieve the time that the hygroscopic property of the desiccant of the resin film that contains desiccant reaches capacity (my god).
[table 1]
| Contain the time that the hygroscopic property of desiccant of the resin film of desiccant reaches capacity (my god) | |
| Embodiment 1 | 80 |
| |
10 |
| |
60 |
| Embodiment 4 | 50 |
| Embodiment 5 | 100 |
| |
40 |
| |
70 |
| |
60 |
| Embodiment 9 | 40 |
| |
10 |
| |
30 |
| |
30 |
In the foregoing description, use the aluminium foil laminate film to demonstrate the continuation of excellent hygroscopic property, and the stacked embodiment that contains the resin film of desiccant demonstrate good hygroscopic property on both of the 1st and the 2nd packing as the embodiment of light absorption or light reflective film 24.Aluminium-vapour deposition film or light absorption film are base material with the PET film, early reach capacity so compare the hygroscopic property of desiccant with the aluminium foil laminate film.In addition, the continuation excellence of hygroscopic property this means that the time that the hygroscopic property of desiccant reaches capacity is longer, can also adjust the continuation of the hygroscopic property of desiccant by adjusting its content.
In addition, as long as containing the time that the hygroscopic property of desiccant of the resin film of desiccant reaches capacity holds time above in the required drying regime of taking in article, under the situation that needs the moisture-proof characteristic more than the saturation time of the foregoing description, can by raising contain desiccant in the resin film of desiccant content, increase on the resin that contains desiccant the thickness, the performance that improves transparent barrier film of stacked polyolefin resin realize.
In addition, in the above-mentioned embodiment, the transparency barrier film 12, pattern printing film 23, contain the resin film 11,21 of desiccant etc., in Fig. 2 (a)～Fig. 2 (d), Fig. 4 (a) and Fig. 4 (d), be illustrated as one deck, but also can comprise on such one deck by stacked films such as coetrusions.In addition, when requiring oxygen-barrier property or barrier properties for gases or when requiring fuel resistance, do not get rid of that to select only resin to carry out by suitable coetrusion stacked.
In addition, for packaging bag of the present invention, the time that the desiccant hygroscopic property reaches capacity can reach more than 100 days.
Industrial usability
Packaging bag of the present invention is be used to the packaging bag of taking in the article that require drying regime, and the packaging material during as keeping foodstuff, electronic unit, medicine, books etc. are effective. In addition, the drier with moisture absorption indicator function of the present invention, the drier that can be used as in the container when putting into keeping foodstuff, electronic unit, medicine, books etc. uses.
Claims (23)
1. have the packaging bag of moisture absorption indicator function, it is characterized in that:
Comprise the 1st packing and the 2nd packing, the bonding and space that the formation article storing is used between them of the 1st packing and the 2nd packing,
The transparent barrier film that the aqueous vapor barrier is arranged at the outermost of the 1st packing in above-mentioned the 1st packing and the 2nd packing at least,
Above-mentioned the 2nd packing have light reflection or light absorption film and in the inboard pattern printed layers that contains the moisture absorption indicator diagram of the bag of this film,
At least one side's bag inside upper part is divided or all stacked resin film that contains desiccant because of the moisture absorption transparence in above-mentioned the 1st packing and the 2nd packing.
2. have the packaging bag of moisture absorption indicator function, it is characterized in that: the barrier film that the aqueous vapor barrier is arranged at the outermost of above-mentioned the 2nd packing.
3. the packaging bag with moisture absorption indicator function described in the claim 1 or 2 is characterized in that: the above-mentioned resin film that contains desiccant is stacked contains the resin bed of desiccant and the resin film of thermoplastic resin.
4. each described packaging bag in the claim 1～3 with moisture absorption indicator function, it is characterized in that: above-mentioned transparent barrier film is the film that has following each layer on basement membrane: be covered with the vapor-deposited film of silicon dioxide or aluminium oxide or their multilayer vapor-deposited film, silicon nitride vapor-deposited film, be coated with the layer of barrier coating, perhaps apply the layer of barrier coating on vapor-deposited film, the moisture-vapor transmission of this transparency barrier film is 0.001～100g/m
2/ day.
5. each described packaging bag in the claim 1～4 with moisture absorption indicator function, it is characterized in that: above-mentioned light reflective film is the film with metallic luster that is made of aluminum laminated film, aluminium-vapour deposition film, inorganic evaporated film or inorganic oxide evaporated film, and its moisture-vapor transmission is 0.001～100g/m
2/ day.
6. each described packaging bag in the claim 1～4 with moisture absorption indicator function, it is characterized in that: above-mentioned light absorption film is laminated with following film, described film is for being coated with or containing the film of light absorption material, the perhaps coating or the film of stacked light absorption material, the moisture-vapor transmission of this light absorption film is 0.001～100g/m
2/ day.
7. each described packaging bag with moisture absorption indicator function in the claim 1～6 is characterized in that: above-mentioned pattern printed layers is arranged on the above-mentioned resin film of desiccant or the polyolefin film on light reflection or the light absorption film of containing; Above-mentioned moisture absorption indicator diagram is the pattern that printing word, numeral, figure or their appropriate combination form on the one side at least of said polyolefins film, the above-mentioned resin film that contains desiccant reaches capacity along with the sucting wet state of contained desiccant and becomes transparent, thereby all can discern above-mentioned moisture absorption indicator diagram in bag or outside the bag.
8. each described packaging bag in the claim 1～6 with moisture absorption indicator function, it is characterized in that: above-mentioned pattern printed layers is arranged on the above-mentioned resin film that contains desiccant or light reflection or the light absorption film, above-mentioned moisture absorption indicator diagram is a printing word on the one side at least of the above-mentioned resin film that contains desiccant or light reflection or light absorption film, numeral, the pattern that figure or their appropriate combination form, the above-mentioned resin film that contains desiccant reaches capacity along with the sucting wet state of contained desiccant and becomes transparent, thereby all can discern above-mentioned moisture absorption indicator diagram in bag or outside the bag.
9. each described packaging bag with moisture absorption indicator function in the claim 1～8 is characterized in that: contain at least a above as desiccant in zeolite, silica gel and the aluminium oxide in the above-mentioned resin film that contains desiccant.
10. each described packaging bag in the claim 1～9 with moisture absorption indicator function, it is characterized in that: above-mentioned the 1st packing are arranged in the face side of article that packaging bag is taken in, and above-mentioned the 2nd packing are positioned at the rear side of these article.
11. each described packaging bag with moisture absorption indicator function in claim 1～4 and 6～10 is characterized in that: above-mentioned light absorption film is to be printed with the film of black ink or the film of mixed carbon black in thermoplastic base resin.
12. each described packaging bag with moisture absorption indicator function in the claim 1～11 is characterized in that: in the above-mentioned resin film that contains desiccant, mix or the coating light-scattering material.
13. each described packaging bag with moisture absorption indicator function in the claim 1～11 is characterized in that: be coated with light-scattering material on above-mentioned transparent barrier film.
14. have the desiccant of moisture absorption indicator function, it is characterized in that: have and on barrier film, stacked gradually the pattern printed layers that is printed with the moisture absorption indicator diagram and because of the indication thin layer of the hygroscopic film of moisture absorption transparence,
On the hygroscopic film of above-mentioned indication thin layer, have trunk drying prescription layer and moisture peretrability film.
15. the desiccant with moisture absorption indicator function described in the claim 14 is characterized in that: the hygroscopic property that on above-mentioned hygroscopic film, is laminated with this hygroscopic film of the control saturating wet control film of time that reaches capacity.
16. the desiccant with moisture absorption indicator function described in the claim 14 is characterized in that: between above-mentioned trunk drying prescription layer and above-mentioned hygroscopic film, form the space and become a bag shape portion.
17. the desiccant with moisture absorption indicator function described in the claim 15 is characterized in that: between above-mentioned trunk drying prescription layer and above-mentioned wet control film, form the space and become a bag shape portion.
18. each described desiccant with moisture absorption indicator function in the claim 14～17 is characterized in that: above-mentioned trunk drying prescription layer is transparent desiccant film or transparent desiccant formed body.
19. the desiccant described in the claim 14 with moisture absorption indicator function, it is characterized in that: above-mentioned trunk drying prescription layer is granular or tabular desiccant or deliquescence desiccant, with the peripheric sealing of above-mentioned moisture peretrability film and above-mentioned hygroscopic film and shape pouch portion, pack in this bag shape portion above-mentioned granular or tabular desiccant or deliquescence desiccant.
20. the desiccant described in the claim 15 with moisture absorption indicator function, it is characterized in that: above-mentioned trunk drying prescription layer is granular or tabular desiccant or deliquescence desiccant, with the peripheric sealing of above-mentioned moisture peretrability film and above-mentioned wet control film and shape pouch portion, pack in this bag shape portion above-mentioned granular or tabular desiccant or deliquescence desiccant.
21. each described desiccant with moisture absorption indicator function in the claim 14～20 is characterized in that: above-mentioned hygroscopic film is stacked contains the resin bed of desiccant and the film of thermoplastic base resin.
22. each described desiccant with moisture absorption indicator function in the claim 14～21 is characterized in that: contain at least a above in zeolite, silica gel and the aluminium oxide in the above-mentioned hygroscopic film as desiccant.
23. each described desiccant with moisture absorption indicator function in the claim 15,17,18,20～22 is characterized in that: above-mentioned wet control film is a clarity films, and its moisture-vapor transmission is 0.01～5000g/m
2/ day.
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2005030999A JP4744890B2 (en) | 2005-02-07 | 2005-02-07 | Packaging bag |
| JP030999/2005 | 2005-02-07 | ||
| JP110522/2005 | 2005-04-07 | ||
| JP2005110522A JP4804783B2 (en) | 2005-04-07 | 2005-04-07 | Desiccant with moisture absorption indicator function |
| PCT/JP2006/301858 WO2006082920A1 (en) | 2005-02-07 | 2006-02-03 | Packaging bag with moisture absorption indicator function and drying agent |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101119898A true CN101119898A (en) | 2008-02-06 |
| CN101119898B CN101119898B (en) | 2012-02-22 |
Family
ID=36976948
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2006800048019A Expired - Fee Related CN101119898B (en) | 2005-02-07 | 2006-02-03 | Packaging bag with moisture absorption indicator function and drying agent |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP4744890B2 (en) |
| CN (1) | CN101119898B (en) |
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| CN102350188A (en) * | 2011-07-21 | 2012-02-15 | 许盛英 | Powdery drying agent for containers |
| CN102826301A (en) * | 2012-08-13 | 2012-12-19 | 吴江市聚力机械有限公司 | Drying composite cloth |
| CN102892495A (en) * | 2010-02-24 | 2013-01-23 | 多种吸附技术公司 | Printed sorbents |
| CN103596752A (en) * | 2011-05-17 | 2014-02-19 | 新美乐远东有限公司 | Container, tube or chemical apparatus with colour indicator, and composite semi-finished product with colour indicator for producing a container, tube or chemical apparatus |
| CN109229964A (en) * | 2018-08-23 | 2019-01-18 | 合肥京东方光电科技有限公司 | A kind of protecting band and display panel |
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| CN114656839A (en) * | 2022-04-28 | 2022-06-24 | 美盈森集团股份有限公司 | Humidity-sensitive ink for humidity detection card, preparation method of humidity-sensitive ink and humidity detection card |
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| JPS63193527A (en) * | 1987-02-06 | 1988-08-10 | Mitsubishi Electric Corp | Etching apparatus |
| JPH0736686B2 (en) * | 1987-11-27 | 1995-04-19 | 三菱電機株式会社 | Induction motor |
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| JP2004331855A (en) * | 2003-05-09 | 2004-11-25 | Toppan Printing Co Ltd | Resin composition having moisture-absorbing function and indicator function and laminate and package each using the same |
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2005
- 2005-02-07 JP JP2005030999A patent/JP4744890B2/en not_active Expired - Fee Related
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2006
- 2006-02-03 CN CN2006800048019A patent/CN101119898B/en not_active Expired - Fee Related
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| CN103596752A (en) * | 2011-05-17 | 2014-02-19 | 新美乐远东有限公司 | Container, tube or chemical apparatus with colour indicator, and composite semi-finished product with colour indicator for producing a container, tube or chemical apparatus |
| CN102350188B (en) * | 2011-07-21 | 2013-04-17 | 许盛英 | Powdery drying agent for containers |
| CN102350188A (en) * | 2011-07-21 | 2012-02-15 | 许盛英 | Powdery drying agent for containers |
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| CN109229964A (en) * | 2018-08-23 | 2019-01-18 | 合肥京东方光电科技有限公司 | A kind of protecting band and display panel |
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| CN114248524A (en) * | 2021-11-13 | 2022-03-29 | 韩元良 | Vapor-barrier waterproof layer, cold insulation material, and preparation method and application thereof |
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Also Published As
| Publication number | Publication date |
|---|---|
| JP2006213393A (en) | 2006-08-17 |
| JP4744890B2 (en) | 2011-08-10 |
| CN101119898B (en) | 2012-02-22 |
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