JP5191180B2 - Hygroscopic / deodorant sheet - Google Patents
Hygroscopic / deodorant sheet Download PDFInfo
- Publication number
- JP5191180B2 JP5191180B2 JP2007190925A JP2007190925A JP5191180B2 JP 5191180 B2 JP5191180 B2 JP 5191180B2 JP 2007190925 A JP2007190925 A JP 2007190925A JP 2007190925 A JP2007190925 A JP 2007190925A JP 5191180 B2 JP5191180 B2 JP 5191180B2
- Authority
- JP
- Japan
- Prior art keywords
- layer
- nonwoven fabric
- porous
- moisture
- sheet
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 239000002781 deodorant agent Substances 0.000 title claims description 36
- 239000003795 chemical substances by application Substances 0.000 claims description 95
- 239000004745 nonwoven fabric Substances 0.000 claims description 95
- 239000000835 fiber Substances 0.000 claims description 73
- 238000010521 absorption reaction Methods 0.000 claims description 66
- 239000002245 particle Substances 0.000 claims description 62
- 238000002844 melting Methods 0.000 claims description 53
- 230000008018 melting Effects 0.000 claims description 52
- 238000004332 deodorization Methods 0.000 claims description 41
- 230000001877 deodorizing effect Effects 0.000 claims description 41
- 239000012943 hotmelt Substances 0.000 claims description 40
- 229920002994 synthetic fiber Polymers 0.000 claims description 32
- 239000012209 synthetic fiber Substances 0.000 claims description 32
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical group [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 27
- 229920001169 thermoplastic Polymers 0.000 claims description 27
- 239000004416 thermosoftening plastic Substances 0.000 claims description 27
- 239000003463 adsorbent Substances 0.000 claims description 25
- 229920001410 Microfiber Polymers 0.000 claims description 22
- 239000004840 adhesive resin Substances 0.000 claims description 22
- 229920006223 adhesive resin Polymers 0.000 claims description 22
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical group O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 21
- 230000035699 permeability Effects 0.000 claims description 21
- 239000000741 silica gel Substances 0.000 claims description 19
- 229910002027 silica gel Inorganic materials 0.000 claims description 19
- 239000002250 absorbent Substances 0.000 claims description 17
- 230000002745 absorbent Effects 0.000 claims description 17
- 238000010030 laminating Methods 0.000 claims description 17
- 239000003230 hygroscopic agent Substances 0.000 claims description 16
- 229920005989 resin Polymers 0.000 claims description 7
- 239000011347 resin Substances 0.000 claims description 7
- 238000002156 mixing Methods 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 claims description 4
- 229920003023 plastic Polymers 0.000 claims description 2
- 239000004033 plastic Substances 0.000 claims description 2
- 239000010410 layer Substances 0.000 description 128
- 239000000843 powder Substances 0.000 description 62
- 229920000139 polyethylene terephthalate Polymers 0.000 description 47
- 239000005020 polyethylene terephthalate Substances 0.000 description 47
- -1 polyethylene Polymers 0.000 description 39
- 239000000306 component Substances 0.000 description 18
- 239000000463 material Substances 0.000 description 17
- 239000000853 adhesive Substances 0.000 description 11
- 230000001070 adhesive effect Effects 0.000 description 11
- 239000002131 composite material Substances 0.000 description 10
- 229920001903 high density polyethylene Polymers 0.000 description 10
- 239000004700 high-density polyethylene Substances 0.000 description 10
- 239000004698 Polyethylene Substances 0.000 description 9
- 238000000034 method Methods 0.000 description 9
- 230000015572 biosynthetic process Effects 0.000 description 8
- 238000004049 embossing Methods 0.000 description 8
- 239000000203 mixture Substances 0.000 description 8
- 239000000123 paper Substances 0.000 description 8
- 229920000573 polyethylene Polymers 0.000 description 8
- 235000013162 Cocos nucifera Nutrition 0.000 description 7
- 244000060011 Cocos nucifera Species 0.000 description 7
- 239000004743 Polypropylene Substances 0.000 description 7
- 239000004744 fabric Substances 0.000 description 7
- 239000007789 gas Substances 0.000 description 7
- 239000000155 melt Substances 0.000 description 7
- 229920000728 polyester Polymers 0.000 description 7
- 229920001155 polypropylene Polymers 0.000 description 7
- 229920001577 copolymer Polymers 0.000 description 6
- 238000007639 printing Methods 0.000 description 6
- 239000008358 core component Substances 0.000 description 5
- 238000002788 crimping Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 5
- 229920001634 Copolyester Polymers 0.000 description 4
- 239000004952 Polyamide Substances 0.000 description 4
- 229920002647 polyamide Polymers 0.000 description 4
- 238000005507 spraying Methods 0.000 description 4
- 229920002292 Nylon 6 Polymers 0.000 description 3
- 229920002302 Nylon 6,6 Polymers 0.000 description 3
- 229910021536 Zeolite Inorganic materials 0.000 description 3
- 229920003232 aliphatic polyester Polymers 0.000 description 3
- 239000000470 constituent Substances 0.000 description 3
- 230000007423 decrease Effects 0.000 description 3
- 239000002274 desiccant Substances 0.000 description 3
- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical compound OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 description 3
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 description 3
- 239000008187 granular material Substances 0.000 description 3
- 238000007646 gravure printing Methods 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 230000010354 integration Effects 0.000 description 3
- 229920001684 low density polyethylene Polymers 0.000 description 3
- 239000004702 low-density polyethylene Substances 0.000 description 3
- 239000011812 mixed powder Substances 0.000 description 3
- 239000005022 packaging material Substances 0.000 description 3
- 229920001707 polybutylene terephthalate Polymers 0.000 description 3
- 239000011148 porous material Substances 0.000 description 3
- 238000005303 weighing Methods 0.000 description 3
- 239000010457 zeolite Substances 0.000 description 3
- ODINCKMPIJJUCX-UHFFFAOYSA-N Calcium oxide Chemical compound [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 2
- WNLRTRBMVRJNCN-UHFFFAOYSA-N adipic acid Chemical compound OC(=O)CCCCC(O)=O WNLRTRBMVRJNCN-UHFFFAOYSA-N 0.000 description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 230000000593 degrading effect Effects 0.000 description 2
- 238000007791 dehumidification Methods 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 238000011156 evaluation Methods 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 239000010419 fine particle Substances 0.000 description 2
- 235000013305 food Nutrition 0.000 description 2
- 239000000499 gel Substances 0.000 description 2
- QQVIHTHCMHWDBS-UHFFFAOYSA-N isophthalic acid Chemical compound OC(=O)C1=CC=CC(C(O)=O)=C1 QQVIHTHCMHWDBS-UHFFFAOYSA-N 0.000 description 2
- 238000003475 lamination Methods 0.000 description 2
- 230000014759 maintenance of location Effects 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- XNGIFLGASWRNHJ-UHFFFAOYSA-N phthalic acid Chemical compound OC(=O)C1=CC=CC=C1C(O)=O XNGIFLGASWRNHJ-UHFFFAOYSA-N 0.000 description 2
- 229920006267 polyester film Polymers 0.000 description 2
- 229920002620 polyvinyl fluoride Polymers 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- CXMXRPHRNRROMY-UHFFFAOYSA-N sebacic acid Chemical compound OC(=O)CCCCCCCCC(O)=O CXMXRPHRNRROMY-UHFFFAOYSA-N 0.000 description 2
- 238000009823 thermal lamination Methods 0.000 description 2
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 description 1
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 1
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- 239000006243 Fine Thermal Substances 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- 229920002544 Olefin fiber Polymers 0.000 description 1
- 238000003854 Surface Print Methods 0.000 description 1
- 239000011358 absorbing material Substances 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000012790 adhesive layer Substances 0.000 description 1
- 235000011037 adipic acid Nutrition 0.000 description 1
- 239000001361 adipic acid Substances 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- CDQSJQSWAWPGKG-UHFFFAOYSA-N butane-1,1-diol Chemical compound CCCC(O)O CDQSJQSWAWPGKG-UHFFFAOYSA-N 0.000 description 1
- 239000001110 calcium chloride Substances 0.000 description 1
- 229910001628 calcium chloride Inorganic materials 0.000 description 1
- 239000000292 calcium oxide Substances 0.000 description 1
- 235000012255 calcium oxide Nutrition 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 239000013522 chelant Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000003750 conditioning effect Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000002542 deteriorative effect Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 229920006244 ethylene-ethyl acrylate Polymers 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 239000010903 husk Substances 0.000 description 1
- 229910000037 hydrogen sulfide Inorganic materials 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 239000004767 olefin fiber Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 239000012779 reinforcing material Substances 0.000 description 1
- 230000001953 sensory effect Effects 0.000 description 1
- 238000007873 sieving Methods 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 229920005992 thermoplastic resin Polymers 0.000 description 1
- 239000002759 woven fabric Substances 0.000 description 1
Landscapes
- Laminated Bodies (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
- Nonwoven Fabrics (AREA)
- Disinfection, Sterilisation Or Deodorisation Of Air (AREA)
- Drying Of Gases (AREA)
Description
本発明は吸湿・消臭シートに関し、さらに詳しくは、多量の多孔質吸湿剤と吸着剤を挟み込むことで高吸湿性と優れた消臭性を付与した、粉漏れ性、可撓性、切断性、印刷性に優れた吸湿・消臭シートに関する。 The present invention relates to a hygroscopic / deodorant sheet. More specifically, a high hygroscopic property and an excellent deodorizing property are provided by sandwiching a large amount of a porous hygroscopic agent and an adsorbent. The present invention relates to a moisture absorbing / deodorizing sheet having excellent printability.
従来、シリカゲル、生石灰、塩化カルシウムあるいはこれらの混合物を主成分とする吸湿性材料(以下、吸湿剤と記す)を調湿、除湿あるいは乾燥剤として用いるため、紙や不織布に穴あきポリエチレンを積層した包装材料や、補強のためにワリフなどの補強材を積層した包装材料の内部に吸湿剤を封入した袋状物(特許文献1、特許文献2)が提案されている。一方、ヒートシール性のある不織布2枚を重ね合わせ、その周辺部および中央部を格子状に接合して乾燥剤を収納したシート状物(特許文献3)が知られている。 Conventionally, in order to use a hygroscopic material (hereinafter referred to as a hygroscopic agent) mainly composed of silica gel, quicklime, calcium chloride or a mixture thereof as a humidity control, dehumidification or desiccant, a perforated polyethylene is laminated on paper or non-woven fabric. A bag-like material (Patent Document 1 and Patent Document 2) in which a hygroscopic agent is sealed inside a packaging material or a packaging material in which a reinforcing material such as a walliff is laminated for reinforcement has been proposed. On the other hand, a sheet-like material (Patent Document 3) in which two non-woven fabrics having heat-sealing properties are overlapped and a peripheral part and a central part thereof are joined in a lattice shape to store a desiccant is known.
近年、調湿、除湿機能に加え消臭機能を付与した乾燥剤用途の需要が、生活雑貨関連、食品関連、精密機器関連、住宅関連など多くの分野に活用の幅が広がっているが、上述の袋状物では、いろいろな用途に適合させるために、多種多様の袋状物が必要となる。また、上述のシート状物においては、ある程度の可撓性はあるももの、その形状を自由自在の形に切断、変形して用いることに制限がある。例えば、住宅関連に使用される除湿・消臭シートの場合は、除湿・消臭シートの厚さが均一でないと、使用個所が制限されるという問題がある。また、吸湿・消臭性能の改良のために、細かい粒子状の吸湿剤、消臭剤を使用する場合には、シート状物にすると微細粒子がシートから脱落がしやすいという問題があった。
さらに、シート状物にすることによって、自由自在の形にカットすることが可能となり、例えば二層のシート間に、吸着剤粉末と熱可塑性樹脂粉末の混合物を挟み、圧着一体化したシート状物が知られている(特許文献4)。しかしながら、このシート状物は、不織布単体を包装材料に使用したものであり、そのため、表面平滑性や、目付や厚みの均一性の点で、充分なものとは言えない。
In recent years, the demand for desiccant applications with a deodorizing function in addition to humidity conditioning and dehumidifying functions has expanded in various fields such as household goods, food, precision equipment, and housing. In order to adapt to various uses, a wide variety of bag-like materials are required. In addition, the above-described sheet-like material has some degree of flexibility, but there is a limit to use by cutting and deforming the shape into a free shape. For example, in the case of a dehumidifying / deodorizing sheet used for housing, there is a problem that the use location is limited unless the thickness of the dehumidifying / deodorizing sheet is uniform. In addition, when a fine particulate hygroscopic agent or deodorant is used to improve moisture absorption / deodorization performance, there is a problem that fine particles easily fall off the sheet when made into a sheet.
Furthermore, by making it into a sheet-like material, it becomes possible to cut into a free shape. For example, a sheet-like material in which a mixture of adsorbent powder and thermoplastic resin powder is sandwiched between two layers of sheets and integrated by pressure bonding Is known (Patent Document 4). However, this sheet-like material uses a nonwoven fabric alone as a packaging material, and therefore cannot be said to be sufficient in terms of surface smoothness, basis weight, and uniformity of thickness.
本発明の課題は、吸湿・消臭シートにおいて、適度な通気性を有し、細かい粒子状の多孔質吸湿剤と吸着剤の粉漏れが無く、表面の印刷性が良好であり、各種の形状に対応可能な吸湿・消臭シートを提供することである。 The problem of the present invention is that the moisture absorption / deodorization sheet has moderate air permeability, no fine particulate porous moisture absorbent and adsorbent powder leakage, good surface printability, and various shapes. It is to provide a moisture absorbing / deodorizing sheet that can cope with the above.
本発明者は、上記の従来技術の問題点に鑑み、吸湿・消臭シートのシート材として、極細繊維層と低融点成分を含む繊維層を有する特定の積層不織布を上下層の少なくとも片方に用い、中間に細かい粒子状の多孔質吸湿剤と吸着剤と熱接着樹脂粒子を挟みこんで、熱接着で一体化した吸湿・消臭シートが、適度な吸湿スピードを有し、表面が平滑で且つ厚みの均一性と可撓性に優れることを見いだし、本発明を完成するに至った。 In view of the above-mentioned problems of the prior art, the present inventor uses a specific laminated nonwoven fabric having a fiber layer containing an ultrafine fiber layer and a low-melting-point component as a sheet material for a moisture absorption / deodorization sheet in at least one of upper and lower layers. The moisture absorbent / deodorant sheet integrated by thermal bonding, sandwiching fine particulate porous moisture absorbent, adsorbent and thermal adhesive resin particles in the middle, has an appropriate moisture absorption speed, smooth surface and It has been found that the thickness uniformity and flexibility are excellent, and the present invention has been completed.
すなわち、本発明は以下の通りである。
(1)熱可塑性合成繊維層(A)、極細繊維層(B)及び前記熱可塑性合成繊維層(A)よりも低融点成分を有する熱可塑性合成繊維層(C)の3層からなる積層不織布層並びに前記熱可塑性合成繊維層(C)面側に熱接着により一体化された他の不織布層(D)を有する吸湿・消臭シートにおいて、多孔質吸湿剤及び吸着剤の粒径がいずれも1000μm以下であり、該多孔質吸湿剤及び吸着剤が前記熱可塑性合成繊維層(C)と不織布層(D)との間に挟持された構造を有することを特徴とする吸湿・消臭シート。
(2)前記他の不織布層(D)が、1層からなる不織布層又は複数の層からなる積層不織布層であることを特徴とする上記(1)記載の吸湿・消臭シート。
(3)前記多孔質吸湿剤及び吸着剤を合わせた多孔質剤の絶対量が50〜1000g/m2であり、その混合する吸着剤の絶対量が10〜500g/m2であることを特徴とする上記(1)又は(2)に記載の吸湿・消臭シート。
(4)熱接着樹脂粒子を用いて前記熱可塑性合成繊維層(C)と不織布層(D)とが接合され、該熱接着樹脂粒子に対する多孔質吸湿剤と吸着剤とを合わせた多孔質剤の混合比が重量比で1/2〜2/1の範囲であることを特徴とする上記(1)〜(3)のいずれかに記載の吸湿・消臭シート。
(5)前記(A)〜(C)の3層からなる積層不織布の通気性が1〜250cc/cm2・secであることを特徴とする上記(1)〜(4)のいずれかに記載の吸湿・消臭シート。
(6)前記熱接着樹脂粒子がホットメルト剤であり、前記多孔質吸湿剤がシリカゲルであり、吸着剤が活性炭であることを特徴とする上記(1)〜(5)のいずれかに記載の吸湿・消臭シート。
(7)前記(A)〜(C)の3層からなる積層不織布の表面及び/又は裏面に印刷層を有することを特徴とする上記(1)〜(6)のいずれかに記載の吸湿・消臭シート。
(8)前記(A)〜(C)の3層からなる積層不織布の少なくとも片面に有孔フィルムが複合一体化されていることを特徴とする上記(1)〜(7)のいずれかに記載の吸湿・消臭シート。
(9)前記有孔フィルムが複合一体化された(A)〜(C)の3層からなる積層不織布の通気性が1〜10000秒/100ccであることを特徴とする上記(8)記載の吸湿・消臭シート。
(10)前記吸湿・消臭シートに熱接着樹脂層を介在させることにより、複数枚積層させたことを特徴とする多層吸湿・消臭シート。
(11)熱可塑性合成繊維層(A)、極細繊維層(B)及び前記熱可塑性合成繊維層(A)よりも低融点成分を有する熱可塑性合成繊維層(C)の3層からなる積層不織布層を形成し、前記熱可塑性合成繊維層(C)面上に、粒径が1000μm以下の、熱接着樹脂粒子、多孔質吸湿剤及び吸着剤を散布し、さらに、他の不織布層(D)を前記熱可塑性合成繊維層(C)面上に熱接着し、両者を積層一体化することにより、前記多孔質吸湿剤及び吸着剤を不織布層間に挟み込むことを特徴とする上記(1)記載の吸湿・消臭シートの製造方法。
That is, the present invention is as follows.
(1) Laminated nonwoven fabric comprising three layers of a thermoplastic synthetic fiber layer (A), an ultrafine fiber layer (B), and a thermoplastic synthetic fiber layer (C) having a lower melting point component than the thermoplastic synthetic fiber layer (A) In the hygroscopic / deodorant sheet having the layer and the other nonwoven fabric layer (D) integrated by thermal bonding on the surface of the thermoplastic synthetic fiber layer (C), the particle sizes of the porous hygroscopic agent and the adsorbent are both A hygroscopic / deodorant sheet having a structure of 1000 μm or less, wherein the porous moisture absorbent and the adsorbent are sandwiched between the thermoplastic synthetic fiber layer (C) and the nonwoven fabric layer (D).
(2) The moisture absorbent / deodorant sheet according to (1), wherein the other nonwoven fabric layer (D) is a nonwoven fabric layer comprising one layer or a laminated nonwoven fabric layer comprising a plurality of layers.
(3) The absolute amount of the porous agent combined with the porous moisture absorbent and the adsorbent is 50 to 1000 g / m 2 , and the absolute amount of the adsorbent to be mixed is 10 to 500 g / m 2. The moisture absorbing / deodorizing sheet according to (1) or (2) above.
(4) A porous agent in which the thermoplastic synthetic fiber layer (C) and the nonwoven fabric layer (D) are bonded using heat-bonding resin particles, and a porous moisture absorbent and an adsorbent for the heat-bonding resin particles are combined. The moisture absorption / deodorization sheet according to any one of the above (1) to (3), wherein the mixing ratio is from 1/2 to 2/1 by weight.
(5) The air permeability of the laminated nonwoven fabric composed of the three layers (A) to (C) is 1 to 250 cc / cm 2 · sec, according to any one of the above (1) to (4), Moisture absorption and deodorant sheet.
(6) The thermal adhesive resin particles are a hot melt agent, the porous hygroscopic agent is silica gel, and the adsorbent is activated carbon, according to any one of (1) to (5) above Hygroscopic / deodorant sheet.
(7) The hygroscopic material as described in any one of (1) to (6) above, which has a printed layer on the front surface and / or the back surface of the laminated nonwoven fabric composed of the three layers (A) to (C). Deodorant sheet.
(8) The porous film according to any one of (1) to (7), wherein a porous film is combined and integrated on at least one side of the laminated nonwoven fabric composed of the three layers (A) to (C). Moisture absorption and deodorant sheet.
(9) The air permeability of the laminated nonwoven fabric composed of three layers (A) to (C) in which the perforated film is combined and integrated is 1 to 10000 seconds / 100 cc. Hygroscopic / deodorant sheet.
(10) A multilayer moisture-absorbing / deodorizing sheet, wherein a plurality of sheets are laminated by interposing a thermal adhesive resin layer in the moisture-absorbing / deodorizing sheet.
(11) A laminated nonwoven fabric comprising three layers of a thermoplastic synthetic fiber layer (A), an ultrafine fiber layer (B), and a thermoplastic synthetic fiber layer (C) having a lower melting point component than the thermoplastic synthetic fiber layer (A). A layer is formed, and on the surface of the thermoplastic synthetic fiber layer (C), thermal adhesive resin particles having a particle size of 1000 μm or less, a porous moisture absorbent and an adsorbent are sprayed, and another nonwoven fabric layer (D) (1), wherein the porous hygroscopic agent and the adsorbent are sandwiched between non-woven fabric layers by thermally bonding to the surface of the thermoplastic synthetic fiber layer (C), and laminating and integrating the two. Manufacturing method of moisture absorption and deodorant sheet.
本発明の吸湿・消臭シートは、接着面となる不織布層に熱接着性の良好な繊維を用い、更に熱接着性樹脂を挟み込んだことにより、両者の接着効果により、シートの接着性、多孔質吸湿剤と吸着剤(以下、多孔質吸湿剤と吸着剤を合わせたものを多孔質剤と称す。)のシートへの固定が強固となり、多孔質剤のシートからの脱落がほとんどなくなる。更に、シート内に極細繊維層を有することにより、小さな粒径の多孔質剤であっても、粉漏れが無くなる。 The hygroscopic / deodorant sheet of the present invention uses a fiber having good thermal adhesiveness in the nonwoven fabric layer serving as an adhesive surface, and further sandwiches a thermal adhesive resin, so that the adhesiveness of the sheet and the porous The fixing of the porous moisture absorbent and the adsorbent (hereinafter, the combination of the porous moisture absorbent and the adsorbent is referred to as the porous agent) to the sheet becomes strong, and the porous agent is hardly detached from the sheet. Furthermore, by having the ultrafine fiber layer in the sheet, even if the porous agent has a small particle diameter, powder leakage is eliminated.
また、多孔質剤の性能を低下することなく使用用途に応じた適度な吸湿・消臭スピードを有し、表面が平滑であり、且つ厚みの均一性、シートとしての一体性、可撓性に優れることから、使用形状に則して、吸湿・消臭シートを自由自在の形にカットすることが可能
となり、広範囲の用途への利用が可能となる。
In addition, it has moderate moisture absorption and deodorization speed according to the intended use without degrading the performance of the porous agent, the surface is smooth, the thickness is uniform, the integrity as a sheet, and the flexibility Since it is excellent, it becomes possible to cut the moisture absorbing / deodorizing sheet into a free shape according to the shape of use, and it can be used for a wide range of applications.
本発明について、以下に具体的に説明する。
本発明の吸湿・消臭シートは、熱可塑性合成繊維層(A)と極細繊維層(B)と前記(A)よりも低融点成分を有する熱可塑性合成繊維層(C)から構成される3層の積層不織布と、他の不織布層(D)との、中間に粒径が1,000μm以下の熱接着樹脂粒子と多孔質吸湿剤と吸着剤を挟みこんで、熱接着で一体化したものである。
The present invention will be specifically described below.
The hygroscopic / deodorant sheet of the present invention comprises a thermoplastic synthetic fiber layer (A), an ultrafine fiber layer (B), and a thermoplastic synthetic fiber layer (C) having a lower melting point component than (A). Layered non-woven fabric and other non-woven fabric layer (D), in which thermal adhesive resin particles with a particle size of 1,000 μm or less, porous hygroscopic agent and adsorbent are sandwiched and integrated by thermal bonding It is.
本発明の吸湿・消臭シートは、3層の積層不織布と他の不織布層との中間に、多量の粒径の細かい多孔質剤を挟みこむことができるので、吸湿力に優れた高い吸湿性能と優れた消臭性を有したものとなる。具体的には、多孔質剤の絶対量は、乾燥重量で示され、乾燥重量で50〜1000g/m2、好ましくは80〜700g/m2、より好ましくは100〜350g/m2である。多孔質剤が50g/m2未満では、不織布への固定が強固となるが、吸湿性、消臭性が少ない。一方、1000g/m2を超えると、吸湿性、消臭性の効果が増大し、吸湿性、消臭性の持続時間が長くできるが、不織布への固定が弱くなり、吸湿・消臭シート端面の多孔質剤が脱落し易くなるなどの問題が生じる。
本発明において、多孔質剤中の吸着剤の混合量は、消臭性能の点から、10〜500g/m2の範囲とするのが好ましく、より好ましい混合量は20〜300g/m2の範囲であることが望ましい。
The hygroscopic / deodorant sheet of the present invention can sandwich a porous agent with a large amount of particle size between the three-layer laminated nonwoven fabric and the other nonwoven fabric layers, so that it has a high hygroscopic performance with excellent moisture absorption. It has excellent deodorizing properties. Specifically, the absolute amount of the porous material is indicated by dry weight, 50 to 1000 g / m 2 in dry weight, preferably 80~700g / m 2, more preferably 100~350g / m 2. When the porous agent is less than 50 g / m 2 , the fixation to the nonwoven fabric becomes strong, but the hygroscopic property and the deodorizing property are small. On the other hand, if it exceeds 1000 g / m 2 , the hygroscopic and deodorant effects are increased and the duration of hygroscopic and deodorant can be increased, but the fixation to the nonwoven fabric becomes weak, and the end face of the hygroscopic / deodorant sheet This causes a problem that the porous agent is easily removed.
In the present invention, the mixing amount of the adsorbent in the porous agent is preferably in the range of 10 to 500 g / m 2 from the viewpoint of deodorizing performance, and the more preferable mixing amount is in the range of 20 to 300 g / m 2 . It is desirable that
本発明の第一の特徴は、多孔質剤のシートへの接着固定を強化するために、熱接着性に優れた繊維層を接着面に用い、更に熱接着樹脂粒子を接着層(中間)にはさみこんだものであり、所謂、熱接着性に優れた繊維と熱接着樹脂粒子の両面から接着性を強化した吸湿・消臭シートである点である。
すなわち、3層の積層不織布を上下層の少なくとも片方とし、(C)層を接着面に用いて熱接着樹脂粒子及び多孔質吸湿剤を挟みこんで、熱接着で一体化することで安定した熱シール強度が得られることである。
The first feature of the present invention is that a fiber layer having excellent thermal adhesiveness is used for the adhesive surface in order to reinforce the adhesion and fixing of the porous agent to the sheet, and further the thermal adhesive resin particles are used as the adhesive layer (intermediate). The sheet is sandwiched and is a so-called hygroscopic / deodorant sheet in which adhesion is enhanced from both sides of a fiber excellent in thermal adhesiveness and thermal adhesive resin particles.
In other words, the laminated nonwoven fabric of three layers is at least one of the upper and lower layers, the (C) layer is used for the adhesive surface, the thermal adhesive resin particles and the porous moisture absorbent are sandwiched, and the heat is stably integrated by thermal bonding. The seal strength is obtained.
具体的には、(A)層と(C)層に融点差を設けることにより、シートの中間に熱接着樹脂粒子及び多孔質剤を挟みこんで、熱接着で一体化する場合、(C)層を接着面とすることで、接着面同志の熱シール加工が、広い温度範囲において可能であり、更に、中間に存在する熱接着樹脂粒子による接着効果も大きく寄与することができると共に、(C)層繊維の融点以上の温度での加工が可能となり、(C)層繊維と多孔質剤を直接接着することができ、結果として、極めて強固で安定した熱シール強度と多孔質剤のシートへの強固な固定化を達成することことができる。
従来の熱接着樹脂のみによる接着の場合、接着強度を維持するために、どうしても、多量の樹脂を用いる傾向となり、その結果、多孔質剤自身の表面を樹脂が覆い易くなり、吸湿、消臭性能が低下するという問題を生じやすい。
Specifically, by providing a difference in melting point between the (A) layer and the (C) layer, the thermal adhesive resin particles and the porous agent are sandwiched between the sheets and integrated by thermal bonding. By making the layer an adhesive surface, heat sealing processing between the adhesive surfaces is possible in a wide temperature range, and furthermore, the adhesive effect by the thermal adhesive resin particles existing in the middle can greatly contribute, and (C ) Processing at a temperature higher than the melting point of the layer fiber is possible, and (C) the layer fiber and the porous agent can be directly bonded. As a result, an extremely strong and stable heat seal strength and a sheet of the porous agent can be obtained. Can be achieved.
In the case of bonding with conventional thermal adhesive resin alone, in order to maintain the adhesive strength, there is a tendency to use a large amount of resin, and as a result, it becomes easier for the porous agent itself to cover the surface, moisture absorption and deodorization performance It is easy to cause the problem that falls.
従って、接着面に熱接着性に優れた繊維層を用いない場合に比べて熱接着樹脂粒子の使用量の軽減が可能となる。具体的には、熱接着樹脂粒子と、多孔質剤との混合比が重量比で1/2〜2/1の混合比での接合が好ましく、より好ましくは、1/1.5〜1.5/1である。熱接着性の合成繊維層(C)は、吸湿剤の繊維への固定化の点で有効に作用するものであり、熱接着樹脂粒子は、シート間の剥離強力の向上に寄与するものといえる。 Therefore, it is possible to reduce the amount of the heat-adhesive resin particles used as compared with a case where a fiber layer having excellent heat adhesion is not used on the bonding surface. Specifically, it is preferable to bond the heat-bonding resin particles and the porous agent at a weight ratio of 1/2 to 2/1, more preferably 1 / 1.5-1 to 1.2. 5/1. The heat-adhesive synthetic fiber layer (C) acts effectively in terms of immobilization of the hygroscopic agent to the fibers, and the heat-adhesive resin particles can be said to contribute to the improvement of the peel strength between the sheets. .
本発明の第二の特徴は、3層の積層不織布の中間層に極細繊維層を用いることで、細かい熱接着樹脂粒子及び多孔質剤を挟みこんでも両者の粒子の漏れ、脱落を防ぐことができる。さらに、極細繊維層は、(A)層および(C)層の比較的太い繊維からなる繊維間隙を、適度に埋める作用を有し、極細繊維層の堆積量をコントロールすることで、繊維間隙
の適度なコントロール、通気性のコントロールが可能となり、適度な吸湿スピードと消臭スピードが得られることである。
すなわち、本発明に用いるシート材は、熱可塑性合成繊維層(A)と低融点成分を有する熱可塑性合成繊維層(C)の間に、極細繊維層(B)の極細繊維層とを積層一体化することで、太い繊維からなる繊維間隙に極細繊維層が入り込み、繊維間隙を被覆するように積層されており、その結果、きわめて微小で均一な繊維間隙を有する積層不織布となり、細かい粒子の漏れ、粒子の脱落を防ぐことができる。
The second feature of the present invention is that an ultrafine fiber layer is used as an intermediate layer of a three-layer laminated nonwoven fabric, so that even if fine thermal adhesive resin particles and a porous agent are sandwiched, both particles are prevented from leaking and falling off. it can. Furthermore, the ultrafine fiber layer has an action of appropriately filling the fiber gap formed by the relatively thick fibers of the layers (A) and (C), and by controlling the deposition amount of the ultrafine fiber layer, Appropriate control and breathability can be controlled, and appropriate moisture absorption speed and deodorization speed can be obtained.
That is, in the sheet material used in the present invention, the ultrafine fiber layer (B) is laminated and integrated between the thermoplastic synthetic fiber layer (A) and the thermoplastic synthetic fiber layer (C) having a low melting point component. As a result, the ultrafine fiber layer enters the fiber gap consisting of thick fibers and is laminated so as to cover the fiber gap, resulting in a laminated nonwoven fabric with extremely fine and uniform fiber gaps, and leakage of fine particles , Can prevent the particles from falling off.
さらに、多孔質剤の吸湿・消臭スピードのコントロールにも極細繊維層を設けることは効果があり、通気性を適度に制御し、バリヤーコントロールすることが可能となり、細かい多孔質剤の急激な吸湿・消臭性能の低下について、制御が可能となり、マイルドで適度な吸湿・消臭スピードが得られるという効果を奏する。しかも、積層不織布と有孔フィルムを複合一体化し、通気量を制御することにより、多孔質剤の吸湿・消臭性能を長時間持続させることができるなど、広範囲に吸湿・消臭時間をコントロールすることができる。 Furthermore, it is effective to provide an extra fine fiber layer to control the moisture absorption and deodorization speed of the porous agent, and it becomes possible to control the air permeability appropriately and to control the barrier.・ Deterioration in deodorization performance can be controlled, and it is possible to obtain mild and moderate moisture absorption / deodorization speed. Moreover, the moisture absorption and deodorization time can be controlled over a wide range, for example, by integrating the laminated nonwoven fabric and the perforated film and controlling the air flow rate so that the moisture absorption and deodorization performance of the porous agent can be maintained for a long time. be able to.
さらに、多孔質剤の吸湿・消臭性能を長時間持続させる必要がある場合は、積層不織布と有孔フィルムを複合一体化し、通気量を制御することができる。これらにより、本発明の吸湿・消臭シートは、さらに広範囲に吸湿・消臭時間のコントロールが可能になる。 Furthermore, when it is necessary to maintain the moisture absorption / deodorization performance of the porous agent for a long time, the laminated nonwoven fabric and the perforated film can be combined and integrated to control the air flow rate. As a result, the moisture absorption / deodorization sheet of the present invention can control the moisture absorption / deodorization time over a wider range.
本発明の第三の特徴は、吸湿・消臭シートが、均一な目付、厚みを有し、可撓性に優れ、各種用途応じた形状に裁断ができ、表面が平滑で、印刷適正にも優れ、意匠性を向上させる効果も有するものである点である。これらの効果は、本発明シート材の構造的な特徴に由来するものであるといえる。 The third feature of the present invention is that the moisture absorbing / deodorizing sheet has a uniform basis weight and thickness, is excellent in flexibility, can be cut into shapes according to various uses, has a smooth surface, and is suitable for printing. It is excellent and has the effect of improving the designability. It can be said that these effects are derived from the structural characteristics of the sheet material of the present invention.
以下,本発明の吸湿・消臭シートの具体的な態様について説明する。
本発明の積層不織布は、(A)層が高融点の熱可塑性合成繊維層、(B)層が極細繊維層、(C)層が(A)層繊維の融点より50℃以上低融点の熱可塑性合成繊維層を積層し、熱圧着で一体化したものであり、S/M/Sの構造を有する積層不織布の一種であるといえる。また、上記の熱圧着で一体化するとは、エンボスロールと平滑ロール間で加熱、圧着して接合することである。
Hereinafter, specific embodiments of the moisture absorption / deodorization sheet of the present invention will be described.
In the laminated nonwoven fabric of the present invention, (A) layer is a thermoplastic synthetic fiber layer having a high melting point, (B) layer is an ultrafine fiber layer, and (C) layer is a heat having a melting point of 50 ° C. or more lower than the melting point of (A) layer fiber. A synthetic plastic fiber layer is laminated and integrated by thermocompression bonding, and can be said to be a kind of laminated nonwoven fabric having an S / M / S structure. Moreover, integrating with said thermocompression bonding means heating and crimping | bonding between an embossing roll and a smooth roll, and joining.
本発明に用いる(A)層の高融点の熱可塑性合成繊維層は、通常、繊維径が10〜30μmの太い繊維から成り、強度、通気性に優れ、磨耗強度が大きいことが好ましい。このような構成繊維としては、例えば、ポリエチレンテレフタレート、ポリブチレンテレフタレート、共重合ポリエステルなどのポリエステル系繊維、ナイロン6、ナイロン66、共重合ポリアミド繊維などのポリアミド系繊維などの合成繊維があげられる。 The high-melting thermoplastic synthetic fiber layer (A) used in the present invention is usually composed of thick fibers having a fiber diameter of 10 to 30 μm, and is preferably excellent in strength and air permeability and has high wear strength. Examples of such constituent fibers include synthetic fibers such as polyester fibers such as polyethylene terephthalate, polybutylene terephthalate, and copolyester, and polyamide fibers such as nylon 6, nylon 66, and copolyamide fibers.
本発明に用いる(C)層の熱可塑性合成繊維層は、(A)層の繊維より低融点であり、好ましくは30〜160℃、さらに好ましくは50〜130℃の範囲の低融点の繊維からなり、吸湿性シートの熱接着面を構成する。繊維径は10〜30μmの太い繊維が好ましい。構成繊維としては、例えば、低密度ポリエチレン、高密度ポリエチレン、ポリプロピレン、共重合ポリエチレン、共重合ポリプロピレンなどのオレフイン系繊維、ポリエチレンテレフタレートにフタル酸、イソフタル酸、セバシン酸、アジピン酸、ジエチレングリコール、1,4−ブタンジオールの1種又は2種以上の化合物を共重合した芳香族ポリエステル共重合体、脂肪族ポリエステルなどのポリエステル系繊維、共重合ポリアミド繊維などの合成繊維が用いられる。 The thermoplastic synthetic fiber layer of the (C) layer used in the present invention has a lower melting point than the fibers of the (A) layer, preferably from 30 to 160 ° C., more preferably from a low melting point fiber in the range of 50 to 130 ° C. And constitutes the heat bonding surface of the hygroscopic sheet. A thick fiber having a fiber diameter of 10 to 30 μm is preferable. Examples of the constituent fibers include olefin fibers such as low density polyethylene, high density polyethylene, polypropylene, copolymer polyethylene, and copolymer polypropylene, polyethylene terephthalate, phthalic acid, isophthalic acid, sebacic acid, adipic acid, diethylene glycol, 1,4 A synthetic fiber such as an aromatic polyester copolymer obtained by copolymerizing one or more compounds of butanediol, a polyester fiber such as an aliphatic polyester, and a copolymerized polyamide fiber is used.
具体的には、芯鞘構造、サイドバイサイドなどの低融点成分を有する2成分からなる複合繊維、例えば、芯部が高融点であり、鞘部が低融点である複合繊維が好ましい。例えば、芯部がポリエチレンテレフタレート(PET)、ポリブチレンテレフタレート、ナイロ
ン6、ナイロン66、共重合ポリアミドなどの高融点繊維であり、鞘部が低密度ポリエチレン、高密度ポリエチレン、ポリプロピレン、共重合ポリエチレン、共重合ポリプロピレン、共重合ポリエステル(CO―PET)、脂肪族ポリエステルなどの低融点繊維が好ましい。
Specifically, a composite fiber composed of two components having a low melting point component such as a core-sheath structure and side-by-side, for example, a composite fiber having a core portion having a high melting point and a sheath portion having a low melting point is preferable. For example, the core is a high melting point fiber such as polyethylene terephthalate (PET), polybutylene terephthalate, nylon 6, nylon 66, copolymer polyamide, and the sheath is low density polyethylene, high density polyethylene, polypropylene, copolymer polyethylene, copolymer. Low melting point fibers such as polymerized polypropylene, copolyester (CO-PET) and aliphatic polyester are preferred.
本発明の(B)層の極細繊維は通常、メルトブロー法による繊維であり、その繊維径は好ましくは7μm以下、より好ましくは1〜5μmであり、繊維間隙、及び最大開口径を小さくし、粉漏れ性を少なくする役目を有する。特に太い繊維により形成される比較的大きな繊維間隙に、(B)層の極細繊維が被覆するように積層されることにより、少ない極細繊維比率で繊維間隙を小さくできる。繊維径が7μmを超えると繊維間隙の被覆効果が低下する。 The ultrafine fiber of the layer (B) of the present invention is usually a fiber by a melt blow method, and the fiber diameter is preferably 7 μm or less, more preferably 1 to 5 μm, the fiber gap and the maximum opening diameter are reduced, and the powder Has the role of reducing leakage. In particular, by laminating the (B) layer of ultrafine fibers so as to cover relatively large fiber gaps formed by thick fibers, the fiber gaps can be reduced with a small ultrafine fiber ratio. When the fiber diameter exceeds 7 μm, the effect of covering the fiber gap decreases.
(B)層の極細繊維の目付けは、好ましくは1g/m2以上、より好ましくは2〜15g/m2、さらに好ましくは3〜10g/m2である。
(B)層の積層不織布に対する含有比率は、5〜20wt%、好ましくは10〜15wt%である。メルトブロー繊維としては、ポリエチレン、ポリプロピレンなどのポリオレフィン系繊維、ナイロン6、ナイロン66などのポリアミド系繊維、ポリエチレンテレフタレート、ポリブチレンテレフタレート、共重合ポリエステル、脂肪族ポリエステルなどのポリエステル系繊維、複合繊維などの多成分繊維などの合成繊維が用いられる。
The basis weight of the ultrafine fibers of the (B) layer is preferably 1 g / m 2 or more, more preferably 2 to 15 g / m 2 , and further preferably 3 to 10 g / m 2 .
The content ratio of the (B) layer to the laminated nonwoven fabric is 5 to 20 wt%, preferably 10 to 15 wt%. Examples of the melt blown fiber include polyolefin fibers such as polyethylene and polypropylene, polyamide fibers such as nylon 6 and nylon 66, polyester fibers such as polyethylene terephthalate, polybutylene terephthalate, copolymerized polyester and aliphatic polyester, and composite fibers. Synthetic fibers such as component fibers are used.
本発明に用いられる熱接着樹脂粒子、及び多孔質剤は、粒径が1000μm以下であり、好ましくは50〜500μm、より好ましくは75〜200μmである。粒径を調整するために、篩分機を用いて分級する事ができ、吸着剤としては、粒度で250〜500μmに分級したもの、吸湿剤としては粒度で75〜200μmに分級したもの、また、熱接着樹脂粒子として粒度で250〜500μmに分級したものが好ましい。
熱接着樹脂粒子は、ホットメルト剤が好ましい。多孔質剤の多孔質吸湿剤は、シルカゲル(A型、B型)、アルミナゲル、シリカアルミナゲル、天然ゼオライト、合成ゼオライトなどの水分を吸着して液体にならない吸湿剤が好ましい。多孔質剤の吸着剤は、活性炭、キレート樹脂、ゼオライト、セラミックなどが好ましい。これらの粒状物をシートの中間に挟みこんで、熱接着で一体化して、吸湿・消臭シートを得る。
The thermal adhesive resin particles and the porous agent used in the present invention have a particle size of 1000 μm or less, preferably 50 to 500 μm, more preferably 75 to 200 μm. In order to adjust the particle size, it can be classified using a sieving machine, the adsorbent is classified into 250 to 500 μm in particle size, the hygroscopic agent is classified into 75 to 200 μm in particle size, What was classified into 250-500 micrometers by the particle size as a heat bonding resin particle is preferable.
The thermal adhesive resin particles are preferably hot melt agents. The porous hygroscopic agent of the porous agent is preferably a hygroscopic agent that does not become liquid by adsorbing moisture, such as silica gel (A type, B type), alumina gel, silica alumina gel, natural zeolite, and synthetic zeolite. The adsorbent for the porous agent is preferably activated carbon, chelate resin, zeolite, ceramic or the like. These granular materials are sandwiched between the sheets and integrated by thermal bonding to obtain a moisture absorbing / deodorizing sheet.
本発明の熱接着樹脂粒子として用いられるホットメルト剤としては、EVA系、EEA系、LDPE系、ポリエステル系、ナイロン系など、通常、接着芯地の加工に使用される粒状又は粉末状ホットメルト剤が用いられる。このホットメルト剤粉末の粒径は1000μm以下、好ましくは40〜500μmである。また溶融時の粘性を表すMI(メルトインデックス)値は0.1〜30、好ましくは1〜20である。ホットメルト剤の粒径が40μm未満では、ホットメルト剤が空中に舞易くなり、多孔質剤への加工が困難となりやすい。また粒径が、1000μmを超えると、シート状物の2次加工性が低下する傾向がある。 Examples of the hot melt agent used as the thermal adhesive resin particles of the present invention include EVA, EEA, LDPE, polyester, nylon, and the like, which are usually used in the processing of an adhesive interlining. Is used. The particle size of the hot melt agent powder is 1000 μm or less, preferably 40 to 500 μm. The MI (melt index) value representing the viscosity at the time of melting is 0.1 to 30, preferably 1 to 20. When the particle size of the hot melt agent is less than 40 μm, the hot melt agent easily floats in the air, and processing into a porous agent tends to be difficult. On the other hand, when the particle size exceeds 1000 μm, the secondary workability of the sheet-like material tends to be lowered.
特に、多孔質剤と、ホットメルト剤の粒径範囲を同程度に分級することが、粉体の混合性、加熱する貼り合せ加工性、及び吸湿・消臭シート表面の平滑性などに好ましい。すなわち、熱プレス接着時に粉末ホットメルト剤と多孔質剤に均等な圧力がかかり、両者の形状をほとんど変化させることなく、シートと多孔質剤との接触点のみで多孔質剤粉末をシートに接合することができ、多孔質剤粉末の吸湿・消臭性能を低下させることなく、外観上、平滑で柔軟な風合いの吸湿・消臭シートが得られる。またMI値が0.1未満では溶融時の流動性が小さすぎるため、シート間の接着が弱くなる。一方、MI値が30を超えると溶融した粉末ホットメルト剤がシート状物に吸い取られ、外観上シミのような斑を発生したり、多孔質剤表面にまとわりつき、吸湿・消臭性能を著しく損なう結果となる。粉末ホットメルト剤の使用量は、多孔質剤量の0.5〜2.0倍、好ましくは0.8〜1.
5倍である。粉末ホットメルト剤の使用量が多孔質剤量の0.5倍未満では、シート間の接着が弱くなり、また、2.0倍を超えると、多孔質剤表面を覆ってしまい、吸湿・消臭性能を損なう傾向にある。
In particular, it is preferable to classify the particle size ranges of the porous agent and the hot melt agent to the same extent in terms of powder mixing properties, heat bonding processability, and smoothness of the moisture absorbing / deodorizing sheet surface. In other words, equal pressure is applied to the powder hot melt agent and the porous agent during hot press bonding, and the porous agent powder is joined to the sheet only at the contact point between the sheet and the porous agent without changing the shape of both. Thus, a moisture absorbing / deodorizing sheet having a smooth and flexible texture can be obtained without reducing the moisture absorbing / deodorizing performance of the porous agent powder. On the other hand, if the MI value is less than 0.1, the fluidity at the time of melting is too small, and the adhesion between the sheets becomes weak. On the other hand, when the MI value exceeds 30, the melted powder hot melt agent is absorbed into the sheet-like material, causing spots such as spots on the appearance, clinging to the surface of the porous agent, and remarkably impairing moisture absorption and deodorizing performance. Result. The amount of the powder hot melt agent used is 0.5 to 2.0 times the amount of the porous agent, preferably 0.8 to 1.
5 times. If the amount of powdered hot melt agent used is less than 0.5 times the amount of porous agent, the adhesion between sheets will be weak, and if it exceeds 2.0 times, the surface of the porous agent will be covered, and moisture absorption / extinguishment will occur. It tends to impair odor performance.
本発明の吸湿・消臭シートの製造方法を具体的に説明する。
例えば、本発明の積層不織布の(C)層面上に、粒径が1000μm以下の、予め吸湿剤と消臭剤を混合した多孔質剤とホットメルト剤のそれぞれの粒状物を、回転ブラシ、振動等を用いた粉体振り落とし機で、粉体重量75〜1500g/m2に調節して、塗布してから、他の不織布(D)を重ねて、加熱、加圧して貼り合わせる。加熱する方法としては、金属製、織物製などのベルト状物を用いた加熱機、金属ロール、フエルトドラムなどで、温度100〜230℃に加熱し、圧力1〜50N/cm、時間1〜60秒で接着一体化する。また別の方法として、多孔質剤と粉末ホットメルト剤の混合粉体を、ホモミキサー、回転型混合機など、通常用いられる粉体混合機を用いて混合し、この混合粉体を例えば接着芯地などを製造する際に使用される粉体振落とし装置などを用いて、本発明の積層不織布の(C)層上に均一に散布し、これに他の本発明の積層不織布を、(C)層が接着面となるようにして重ね、続いて熱プレス接着を行い、ホットメルト剤及び(C)層の構成繊維を同時に軟化または融着させて接着し一体化する。
The manufacturing method of the moisture absorption / deodorant sheet of this invention is demonstrated concretely.
For example, on the (C) layer surface of the laminated non-woven fabric of the present invention, each granular material of a porous agent and a hot melt agent in which a particle size is 1000 μm or less and is previously mixed with a hygroscopic agent and a deodorant is mixed with a rotating brush, vibration The powder weight is adjusted to 75 to 1500 g / m 2 with a powder shaker using the like, and after coating, another non-woven fabric (D) is laminated, heated and pressurized to be bonded. As a heating method, a heater using a belt-like material such as metal or woven fabric, a metal roll, a felt drum or the like is used to heat to a temperature of 100 to 230 ° C., a pressure of 1 to 50 N / cm, and a time of 1 to 60. Bond and integrate in seconds. As another method, a mixed powder of a porous agent and a powder hot melt agent is mixed using a commonly used powder mixer such as a homomixer or a rotary mixer, and the mixed powder is mixed with, for example, an adhesive core. Using a powder shaker or the like used when manufacturing the ground, etc., uniformly spread on the layer (C) of the laminated nonwoven fabric of the present invention, to which the other laminated nonwoven fabric of the present invention is applied (C The layers are laminated so that the layers become the adhesive surfaces, followed by hot press bonding, and the hot melt agent and the constituent fibers of the layer (C) are simultaneously softened or fused to bond and integrate.
本発明の熱接着による一体化方法としては、熱プレスや平滑ロール間で加熱、圧着して(C)層繊維とホットメルト剤を同時に軟化または融着させて接着させる方法がある。
熱加工温度範囲は、例えば、(C)層繊維に芯部が高融点であり、鞘部が低融点である複合繊維を用いた場合、鞘部の低融点以上で、芯部の高融点マイナス20℃が好ましい。
本発明の吸湿・消臭シートに用いられる積層不織布の目付けは、目的とする強度、通気性から15〜120g/m2、好ましくは、20〜100g/m2である。目付けが15g/m2未満では、強度が低下する。一方、120g/m2越えると、強度が大きくなるが、風合いが低下する。
As an integration method by thermal bonding of the present invention, there is a method of heating and press-bonding between a hot press and a smooth roll to simultaneously soften or fuse the (C) layer fiber and the hot melt agent.
The heat processing temperature range is, for example, when the composite fiber having a core having a high melting point and a sheath having a low melting point is used as the (C) layer fiber, the sheath having a low melting point or higher and a core having a high melting point minus 20 ° C. is preferred.
Moisture deodorizing sheet of the laminated nonwoven fabric used basis weight of the present invention, the intensity of interest, 15~120g / m 2 from breathable, preferably 20 to 100 g / m 2. If the basis weight is less than 15 g / m 2 , the strength decreases. On the other hand, if it exceeds 120 g / m 2 , the strength increases but the texture decreases.
本発明の吸湿・消臭シートに用いられる積層不織布の通気性は、充填する多孔質剤等の粉漏れを生じない程度に、その効果を十分に発揮するため、フラジュール法による通気度が、1〜250cc/cm2/secの範囲が好ましくより好ましくは、5〜200cc/cm2/secである。通気性が1cc/cm2/sec未満では、空気の流通が少なくなり、吸湿・消臭性能を持続させるには望ましいが、高目付けの不織布となることから風合いが低下する。一方、250cc/cm2/sec超えると空気の流通は十分であるが粉漏れし易くなる。積層不織布の通気性を1〜250cc/cm2/secの範囲とすることで、急激な吸湿・消臭性を抑制でき、吸湿・消臭速度を適度な速度にコントロールすることが可能となる。 The air permeability of the laminated nonwoven fabric used in the moisture absorbing / deodorizing sheet of the present invention is sufficient to exhibit its effect to the extent that powder leakage such as a porous agent to be filled does not occur. The range of 1 to 250 cc / cm 2 / sec is preferable, and more preferably 5 to 200 cc / cm 2 / sec. When the air permeability is less than 1 cc / cm 2 / sec, air circulation is reduced, and it is desirable to maintain moisture absorption / deodorization performance, but the texture is lowered because the nonwoven fabric has a high weight per unit area. On the other hand, if it exceeds 250 cc / cm 2 / sec, air circulation is sufficient, but powder leakage tends to occur. By setting the breathability of the laminated nonwoven fabric to the range of 1 to 250 cc / cm 2 / sec, it is possible to suppress rapid moisture absorption / deodorization and to control the moisture absorption / deodorization rate to an appropriate rate.
更に、用いる用途によって、吸湿・消臭性能を長時間持続させることが必要なときは、3層の積層不織布の(A)層側に有孔フィルムを複合一体化させ、通気性を小さな値に制御することが有効な手段となる。この場合、通気性としては、例えば、ガーレ法による通気度が1〜10000秒/100ccの範囲が好ましくより好ましくは、5〜5000cc/100ccである。
このように、本発明の吸湿・消臭シートは、吸湿・消臭シートの目的とする使用分野、必要とされる吸湿・消臭性に応じて、適宜、通気性、吸湿・消臭速度と持続時間を設定することができる。
Furthermore, if it is necessary to maintain moisture absorption and deodorization performance for a long time depending on the application to be used, a porous film is combined and integrated on the (A) layer side of the three-layer laminated nonwoven fabric to reduce the air permeability. Control is an effective means. In this case, as the air permeability, for example, the air permeability according to the Gurley method is preferably in the range of 1 to 10,000 seconds / 100 cc, more preferably 5 to 5000 cc / 100 cc.
As described above, the moisture absorption / deodorization sheet of the present invention has appropriate air permeability, moisture absorption / deodorization rate, depending on the intended use field of the moisture absorption / deodorization sheet and the required moisture absorption / deodorization property. The duration can be set.
上記の場合の有孔フィルムとしては、例えば、ポリエチレン、ポリプロピレンなどからなる微多孔フィルムやポリエステルフィルム、一軸、二軸延伸ポリプロピレンフィルムなどを穴あけ加工したフィルムなどが挙げられる。積層不織布との複合一体化方法としては、熱ラミネートや押し出しラミネートが挙げられ、好ましくはPET/PEの押出しラミ
ネートである。孔あけ加工したフィルムにおいて、孔径は0.1〜2mmであり、ピッチは1〜10mm間隔が好ましい。
Examples of the perforated film in the above case include a microporous film made of polyethylene, polypropylene, or the like, a polyester film, a film obtained by punching a uniaxial or biaxially stretched polypropylene film, or the like. Examples of the composite integration method with the laminated nonwoven fabric include thermal lamination and extrusion lamination, and preferably PET / PE extrusion lamination. In the hole-performed film, the hole diameter is 0.1 to 2 mm, and the pitch is preferably 1 to 10 mm.
本発明の積層不織布の最大開口径は、50μm以下、好ましくは1〜40μm、より好ましくは3〜30μmである。最大開口径が50μmを超えると、繊維間隙が大きいために粉漏れし易くなり、特に、粒状のものが破壊された場合に粉漏れしやすくなる。 The maximum opening diameter of the laminated nonwoven fabric of the present invention is 50 μm or less, preferably 1 to 40 μm, more preferably 3 to 30 μm. When the maximum opening diameter is more than 50 μm, the fiber gap is large, so that the powder easily leaks. In particular, when the granular material is broken, the powder easily leaks.
本発明の吸湿・消臭シートは、表面層に用いる積層不織布の目付けが15g/m2以上、地合い指数が300以下と、地合いが均一であることからミクロな部分においても目付けの厚薄が無く、目付け斑が少なく、均一な不織布を用いることにより、印刷適正の良好なシートとなる。更に特徴的な点は、例えば、目付けが30g/m2以下の積層不織布の印刷は、裏印刷(接着面への印刷)が可能で、裏印刷した積層不織布を使った吸湿・消臭シートは、特に表面の印刷堅牢性に優れた吸湿・消臭シートが得られる。 The moisture absorption / deodorant sheet of the present invention has a basis weight of the laminated nonwoven fabric used for the surface layer of 15 g / m 2 or more, a texture index of 300 or less, and since the texture is uniform, there is no thickness of the basis weight even in the micro part, By using a uniform non-woven fabric with less weight unevenness, a sheet with good printability can be obtained. Furthermore, for example, printing of laminated nonwoven fabrics with a basis weight of 30 g / m 2 or less can be printed on the back side (printing on the adhesive surface). In particular, a moisture-absorbing and deodorizing sheet excellent in surface fastness can be obtained.
本発明を実施例に基づいて説明する。
測定方法は以下のとおりである。
(1)目付(g/m2):縦20cm×横25cmの試料を3カ所切り取り、重量を測定し、その平均値を単位当たりの質量に換算して求める。(JIS−L−1906)
(2)平均繊維径(μm):顕微鏡で500倍の拡大写真を取り、10本の平均値で求める。
(3)通気性:JIS−L−1906の、フラジュール法、及びガーレ法に準拠。
(4)地合い指数
フォーメーションテスターFMT−MIII(野村商事株式会社 特許登録1821351号)を使用し、CD方向に1mあたり4点測定し、地合指数を得た。この数値が小さい程、地合が均一で斑がない。
(5)剥離性
加工後に剥離するか官能検査によって判定する。
○:手で剥離が困難なレベル
×:手で容易に剥離できるレベル
The present invention will be described based on examples.
The measurement method is as follows.
(1) Weight per unit area (g / m 2 ): A sample having a length of 20 cm × width of 25 cm is cut out at three locations, the weight is measured, and the average value is calculated by converting it into mass per unit. (JIS-L-1906)
(2) Average fiber diameter (μm): Take a 500-fold magnified photograph with a microscope, and determine the average value of 10 fibers.
(3) Breathability: Conforms to JIS-L-1906's Frajour method and Gurley method.
(4) Formation Index Using a formation tester FMT-MIII (Nomura Shoji Co., Ltd., Patent Registration No. 1821351), four points were measured per meter in the CD direction to obtain a formation index. The smaller the value, the more uniform the texture and the less the spots.
(5) Peelability Whether to peel after processing is determined by sensory inspection.
○: Level that is difficult to peel by hand ×: Level that can be easily peeled by hand
(6)吸湿量保持率:吸湿・消臭シートの吸湿量(Q1)と吸湿剤の吸湿量(Q0)から算出する。
吸湿量保持率:(Q1)/(Q0) ×100 (%)
(Q1):縦5cm×横2cmの試料を10枚切り取り、秤量びんに入れて、105℃×4時間以上絶乾し、デシケーター内で1時間冷却した後の試料の重量(W1)、恒温恒湿槽(25℃×90%RH)中に24時間入れた後の試料の重量(W2)とから算出し1g当たりに換算した吸湿量(Q1)とする。
(Q1)=((W2)−(W1)) /(W1)
(Q0):吸湿剤5gを秤量びんに入れて、105℃×4時間以上絶乾し、デシケーター内で1時間冷却した後の試料の重量(W3)、恒温恒湿槽(25℃×90%RH)中に24時間入れた後の試料の重量(W4)とから算出し1g当たりに換算した吸湿量(Q0)とする。
(Q0)=((W4)−(W3)) /(W3)
(7)吸湿飽和時間:縦5cm×横2cmの試料を10枚切り取り、秤量びんに入れて、105℃×4時間以上絶乾し、デシケーター内で1時間冷却した後の試料を、恒温恒湿槽(25℃×90%RH)中に入れ吸湿量が飽和に達する時間を測定する。
(8)悪臭ガスに対する消臭性能評価
(i)吸湿・消臭シートを5×10cmに切り出す。
(ii)1000ccテドラーバック内に(i)の試料と以下の濃度に調整された悪
臭ガス(硫化水素:20ppm)を600cc封入し、20℃の環境下に放置する。
(iii)60分後にテドラーバック内悪臭ガス濃度を検知管にて測定し悪臭ガス残存率を以下式により算出する。
悪臭ガス残存率(%)=残存ガス濃度(%)×100/封入ガス濃度(%)
(6) Moisture absorption retention: Calculated from the moisture absorption (Q1) of the moisture absorption / deodorant sheet and the moisture absorption (Q0) of the moisture absorbent.
Moisture absorption retention: (Q1) / (Q0) × 100 (%)
(Q1): Cut out 10 samples of 5 cm in length and 2 cm in width, put them in a weighing bottle, completely dry at 105 ° C. for 4 hours or more, and cool the sample in a desiccator for 1 hour (W1), constant temperature and constant It is calculated from the weight (W2) of the sample after being put in a wet tank (25 ° C. × 90% RH) for 24 hours, and is defined as a moisture absorption amount (Q1) converted per 1 g.
(Q1) = ((W2)-(W1)) / (W1)
(Q0): 5 g of a hygroscopic agent was placed in a weighing bottle, completely dried at 105 ° C. for 4 hours or more, cooled in an desiccator for 1 hour, weight (W3), constant temperature and humidity chamber (25 ° C. × 90%) Calculated from the weight (W4) of the sample after 24 hours in (RH) and converted to the amount of moisture absorption (Q0) per gram.
(Q0) = ((W4)-(W3)) / (W3)
(7) Moisture absorption saturation time: Cut out 10 pieces of 5 cm long x 2 cm wide samples, put them in a weighing bottle, completely dry at 105 ° C. for 4 hours or more, and cool the sample for 1 hour in a desiccator. It puts in a tank (25 degreeC x 90% RH), and measures the time which moisture absorption reaches saturation.
(8) Evaluation of deodorizing performance against bad odor gas (i) Cut out the moisture absorbing / deodorizing sheet to 5 × 10 cm.
(Ii) A sample of (i) and 600 cc of malodorous gas (hydrogen sulfide: 20 ppm) adjusted to the following concentration are sealed in a 1000 cc Tedlar bag and left in an environment of 20 ° C.
(iii) After 60 minutes, the malodorous gas concentration in the Tedlar bag is measured with a detector tube, and the malodorous gas residual ratio is calculated by the following equation.
Odor gas residual rate (%) = residual gas concentration (%) x 100 / filled gas concentration (%)
(実施例1)
積層不織布のC層として、スパンボンド用の2成分紡糸口金を用いて、鞘成分に高密度ポリエチレン(HDPE、融点130℃)、芯成分にポリエチレンテレフタレート(PET、融点263℃)からなる平均繊径16μmの鞘芯型複合繊維ウエブを作成した。
B層は、ポリエチレンテレフタレート(PET、融点263℃)を用い、メルトブロー用噴射口金から、平均繊径2μmの極細繊維ウエブを吐出し、C層上に積層した。
Example 1
As the C layer of the laminated nonwoven fabric, a two-component spinneret for spunbond is used, and the average fiber diameter is made of high-density polyethylene (HDPE, melting point 130 ° C) as the sheath component and polyethylene terephthalate (PET, melting point 263 ° C) as the core component. A 16 μm sheath-core type composite fiber web was prepared.
For layer B, polyethylene terephthalate (PET, melting point 263 ° C.) was used, and an ultrafine fiber web having an average fine diameter of 2 μm was discharged from a melt blown nozzle and laminated on the C layer.
さらに、その上に、A層のポリエチレンテレフタレート(PET、融点263℃)を、スパンボンド用紡糸口金を用いて、平均繊径14μmのPETウエブを捕集ネット上に集積した。
得られた全体として目付20g/m2の積層繊維ウエブを圧着面積率が25%エンボスロールで熱圧着し、一体化して積層不織布を得た。得られた3層の積層不織布の通気度は、100cc/cm2/sec、地合い指数は、200であった。次に、得られた積層不織布のC層側にグラビア印刷機を用いて全面に活字を印刷した。
Furthermore, a PET web having an average fine diameter of 14 μm was accumulated on a collection net using a polyethylene terephthalate (PET, melting point 263 ° C.) of layer A and a spunbond spunbond.
The obtained laminated fiber web having a weight per unit area of 20 g / m 2 was thermocompression bonded with an embossing roll having a crimping area ratio of 25% and integrated to obtain a laminated nonwoven fabric. The obtained three-layer laminated nonwoven fabric had an air permeability of 100 cc / cm 2 / sec and a formation index of 200. Next, the typeface was printed on the whole surface using the gravure printer on the C layer side of the obtained laminated nonwoven fabric.
次に、粒度250μm〜500μmに分級されたヤシガラ活性炭粉末と粒度80μm〜200μmに分級されたB型シリカゲル粉末を重量比で1:4に混合した多孔質剤と粒度250〜500μmに分級された融点110℃のポリエチレン系ホットメルト剤を多孔質剤とホットメルトの重量比で1:1となるように回転型粉体混合機で混合し、シリカゲルと活性炭とホットメルト剤粉末の混合体を得た。次に、通常、紙や布帛のラミネートに使用される粉体散布装置を具備した熱ロール接合型のラミネート装置を用い、先に作製した3層積層不織布のC層上に多孔質剤とホットメルト剤粉末の合計が400g/m2になるよう散布した。更に、同様の3層積層不織布のC層側を粉体面に重ね、170℃に熱せられた熱プレスロールにて接合して吸湿・消臭シートを得た。 Next, a porous agent in which coconut shell activated carbon powder classified to a particle size of 250 μm to 500 μm and B-type silica gel powder classified to a particle size of 80 μm to 200 μm are mixed at a weight ratio of 1: 4 and a melting point classified to a particle size of 250 to 500 μm. A polyethylene hot melt agent at 110 ° C. was mixed with a rotary powder mixer so that the weight ratio of the porous agent and the hot melt was 1: 1 to obtain a mixture of silica gel, activated carbon and hot melt agent powder. . Next, using a hot roll bonding type laminating apparatus equipped with a powder dispersion apparatus usually used for laminating paper and fabric, a porous agent and a hot melt are formed on the C layer of the three-layer laminated nonwoven fabric produced previously. It sprayed so that the sum total of agent powder might be 400 g / m < 2 >. Furthermore, the C layer side of the same three-layer laminated nonwoven fabric was overlapped on the powder surface and joined with a hot press roll heated to 170 ° C. to obtain a moisture absorbing / deodorizing sheet.
得られた吸湿・消臭シートの特性を表1に示したが、シリカゲルの吸湿量と活性炭の消臭性能を低下させること無く吸湿・消臭性能に優れた、厚みの均一性と可撓性の良い吸湿・消臭シートであった。更に、裏印刷でも表面に活字が鮮明に現れると共に表面の印刷堅牢性に優れた本発明の吸湿・消臭シートが得られた。 The properties of the obtained moisture absorption / deodorization sheet are shown in Table 1. The thickness uniformity and flexibility are excellent in moisture absorption / deodorization performance without deteriorating the moisture absorption amount of silica gel and the deodorization performance of activated carbon. It was a good moisture absorption / deodorant sheet. Furthermore, the moisture-absorbing / deodorizing sheet of the present invention was obtained in which the typefaces appeared clearly on the surface and the surface printing fastness was excellent.
(実施例2)
積層不織布のC層として、スパンボンド用の2成分紡糸口金を用いて、鞘成分に共重合ポリエステル(CO−PET、融点200℃)、芯成分にポリエチレンテレフタレート(PET、融点263℃)からなる平均繊径16μmの鞘芯型複合繊維ウエブを作成した。
B層は、ポリエチレンテレフタレート(PET、融点263℃)を用い、メルトブロー用噴射口金から、平均繊径2μmの極細繊維ウエブを吐出し、C層上に積層した。
(Example 2)
As the C layer of the laminated nonwoven fabric, using a spunbond two-component spinneret, an average consisting of a copolymer polyester (CO-PET, melting point 200 ° C.) as a sheath component and polyethylene terephthalate (PET, melting point 263 ° C.) as a core component A sheath-core type composite fiber web having a fine diameter of 16 μm was prepared.
For layer B, polyethylene terephthalate (PET, melting point 263 ° C.) was used, and an ultrafine fiber web having an average fine diameter of 2 μm was discharged from a melt blown nozzle and laminated on the C layer.
さらに、その上に、A層のポリエチレンテレフタレート(PET、融点263℃)を、スパンボンド用紡糸口金を用いて、平均繊径14μmのPETウエブとして捕集ネット上に集積した。
得られた全体として目付20g/m2の積層繊維ウエブを圧着面積率が25%エンボスロールで熱圧着して一体化して3層積層不織布を得た。得られた積層不織布の通気度は、100cc/cm2/sec、地合い指数は、200であった。
Furthermore, A-layer polyethylene terephthalate (PET, melting point 263 ° C.) was accumulated on the collection net as a PET web having an average fine diameter of 14 μm using a spunbond spinneret.
As a whole, the laminated fiber web having a basis weight of 20 g / m 2 was integrated by thermocompression bonding with an embossing roll having a crimp area ratio of 25% to obtain a three-layer laminated nonwoven fabric. The air permeability of the obtained laminated nonwoven fabric was 100 cc / cm 2 / sec, and the formation index was 200.
次に、粒度80μm〜200μmに分級されたB型シリカゲル粉末中に粒度250μm
〜500μmに分級されたヤシガラ活性炭粉末を10%混合した多孔質剤と粒度250〜500μmに分級された融点83℃であるEVA系ホットメルト剤を多孔質剤とホットメルトの重量比で1:0.5となるように回転型粉体混合機で混合し、多孔質剤とホットメルト剤粉末の混合体を得た。次に、通常、紙や布帛のラミネートに使用される粉体散布装置を具備した熱ロール接合型のラミネート装置を用い、先に作製した積層不織布のC層上に多孔質材とホットメルト剤粉末の合計が300g/m2になるよう散布した。更に、同様の積層不織布のC層側を粉体面に重ね、200℃に熱せられた熱プレスロールにて接合を行い吸湿・消臭シートを得た。次に、吸湿・消臭シートの表面にグラビア印刷機を用いて全面に活字を印刷した。得られた吸湿・消臭シートの特性を表1に示したが、シリカゲルの吸湿量と活性炭の消臭性能を低下させること無く吸湿・消臭性能に優れた、鮮明に印刷された、厚みの均一性と可撓性の良い吸湿・消臭シートであった。
Next, in a B-type silica gel powder classified to a particle size of 80 μm to 200 μm, a particle size of 250 μm
A porous agent in which 10% of coconut shell activated carbon powder classified to ˜500 μm is mixed and an EVA hot melt agent having a melting point of 83 ° C. classified to a particle size of 250 to 500 μm in a weight ratio of the porous agent to the hot melt is 1: 0. Was mixed with a rotary powder mixer to obtain a mixture of porous agent and hot melt agent powder. Next, a porous material and hot-melt agent powder are formed on the layer C of the laminated nonwoven fabric previously produced using a hot roll bonding type laminating apparatus equipped with a powder spraying apparatus usually used for laminating paper and fabric. Was sprayed so that the total of 300 g / m 2 . Furthermore, the C layer side of the same laminated nonwoven fabric was overlapped on the powder surface, and bonded with a hot press roll heated to 200 ° C. to obtain a moisture absorbing / deodorizing sheet. Next, the typeface was printed on the entire surface of the moisture absorbing / deodorizing sheet using a gravure printing machine. The properties of the obtained moisture absorption / deodorization sheet are shown in Table 1. The thickness of the moisture absorption / deodorization performance is excellent without reducing the moisture absorption amount of silica gel and the deodorization performance of activated carbon. It was a hygroscopic / deodorant sheet with good uniformity and flexibility.
(実施例3)
積層不織布のC層として、スパンボンド用の2成分紡糸口金を用いて、鞘成分に高密度ポリエチレン(HDPE、融点130℃)、芯成分にポリエチレンテレフタレート(PET、融点263℃)からなる平均繊径16μmの鞘芯型複合繊維ウエブを作成した。
B層としては、ポリエチレンテレフタレート(PET、融点263℃)を用い、メルトブロー用噴射口金から、平均繊径2μmの極細繊維ウエブを吐出し、これをC層上に積層した。
(Example 3)
As the C layer of the laminated nonwoven fabric, a two-component spinneret for spunbond is used, and the average fiber diameter is made of high-density polyethylene (HDPE, melting point 130 ° C) as the sheath component and polyethylene terephthalate (PET, melting point 263 ° C) as the core component. A 16 μm sheath-core type composite fiber web was prepared.
As the B layer, polyethylene terephthalate (PET, melting point 263 ° C.) was used, and an ultrafine fiber web having an average fine diameter of 2 μm was discharged from the melt blown nozzle, and this was laminated on the C layer.
さらに、その上に、A層のポリエチレンテレフタレート(PET、融点263℃)を、スパンボンド用紡糸口金を用いて、平均繊径14μmのPETウエブとして捕集ネット上に集積した。
得られた全体として目付70g/m2の3層積層繊維ウエブを圧着面積率が25%エンボスロールで熱圧着して一体化して積層不織布を得た。得られた積層不織布の通気度は、9cc/cm2/sec、地合い指数は、91であった。
Furthermore, A-layer polyethylene terephthalate (PET, melting point 263 ° C.) was accumulated on the collection net as a PET web having an average fine diameter of 14 μm using a spunbond spinneret.
As a whole, a three-layer laminated fiber web having a basis weight of 70 g / m 2 was integrated by thermocompression bonding with an embossing roll having a crimp area ratio of 25% to obtain a laminated nonwoven fabric. The air permeability of the obtained laminated nonwoven fabric was 9 cc / cm 2 / sec, and the formation index was 91.
次に、粒度250μm〜500μmに分級されたヤシガラ活性炭粉末と粒度80μm〜200μmに分級されたB型シリカゲル粉末を重量比で1:1に混合した多孔質剤と粒度250〜500μmに分級された融点83℃であるEVA系ホットメルト剤を多孔質剤とホットメルトの重量比で1:1となるように回転型粉体混合機で混合し、多孔質剤とホットメルト剤粉末の混合体を得た。次に、通常、紙や布帛のラミネートに使用される粉体散布装置を具備した熱ロール接合型のラミネート装置を用い、先に作製した積層不織布上に多孔質剤とホットメルト剤粉末の合計が400g/m2になるよう散布した。更に、目付け70g/m2の同様の積層不織布のC層を粉末面に重ね、190℃に熱せられた熱プレスロールにて接合を行い吸湿・消臭シートを得た。次に、吸湿・消臭シートの表面にグラビア印刷機を用いて全面に活字を印刷した。得られた吸湿・消臭シートの特性を表1に示すが、シリカゲルの吸湿量と活性炭の消臭性能を低下させること無く吸湿・消臭性能に優れた、厚みの均一性と可撓性の良い吸湿・消臭シートであった。 Next, a porous agent in which coconut shell activated carbon powder classified to a particle size of 250 μm to 500 μm and B-type silica gel powder classified to a particle size of 80 μm to 200 μm are mixed at a weight ratio of 1: 1 and a melting point classified to a particle size of 250 to 500 μm. The EVA hot melt agent at 83 ° C. was mixed with a rotary powder mixer so that the weight ratio of the porous agent to the hot melt was 1: 1 to obtain a mixture of the porous agent and the hot melt agent powder. It was. Next, using a hot roll bonding type laminating apparatus equipped with a powder spreading apparatus usually used for laminating paper and fabric, the total of the porous agent and hot melt agent powder is formed on the previously produced laminated nonwoven fabric. It sprayed so that it might become 400 g / m < 2 >. Furthermore, the C layer of the same laminated nonwoven fabric with a weight per unit area of 70 g / m 2 was overlapped on the powder surface, and joined with a hot press roll heated to 190 ° C. to obtain a moisture absorbing / deodorizing sheet. Next, the typeface was printed on the entire surface of the moisture absorbing / deodorizing sheet using a gravure printing machine. The properties of the obtained moisture absorption / deodorization sheet are shown in Table 1. The moisture absorption / deodorization performance is excellent without reducing the moisture absorption amount of silica gel and the deodorization performance of activated carbon. It was a good moisture absorption / deodorant sheet.
(実施例4)
積層不織布のC層として、スパンボンド用の2成分紡糸口金を用いて、鞘成分に高密度ポリエチレン(HDPE、融点130℃)、芯成分にポリエチレンテレフタレート(PET、融点263℃)からなる平均繊径16μmの鞘芯型複合繊維ウエブを作成した。
B層は、ポリエチレンテレフタレート(PET、融点263℃)を用い、メルトブロー用噴射口金から、平均繊径2μmの極細繊維ウエブを吐出し、C層上に積層した。
Example 4
As the C layer of the laminated nonwoven fabric, a two-component spinneret for spunbond is used, and the average fiber diameter is made of high-density polyethylene (HDPE, melting point 130 ° C) as the sheath component and polyethylene terephthalate (PET, melting point 263 ° C) as the core component. A 16 μm sheath-core type composite fiber web was prepared.
For layer B, polyethylene terephthalate (PET, melting point 263 ° C.) was used, and an ultrafine fiber web having an average fine diameter of 2 μm was discharged from a melt blown nozzle and laminated on the C layer.
さらに、その上に、A層のポリエチレンテレフタレート(PET、融点263℃)をスパンボンド用紡糸口金を用いて、平均繊径14μmのPETウエブとして捕集ネット上に集積した。
得られた全体として目付20g/m2の積層繊維ウエブを圧着面積率が25%エンボスロールで熱圧着して一体化して3層積層不織布を得た。得られた積層不織布の通気度は、100cc/cm2/sec、地合い指数は、200であった。
Further, A-layer polyethylene terephthalate (PET, melting point 263 ° C.) was accumulated on the collection net as a PET web having an average fine diameter of 14 μm using a spunbond spinneret.
As a whole, the laminated fiber web having a basis weight of 20 g / m 2 was integrated by thermocompression bonding with an embossing roll having a crimp area ratio of 25% to obtain a three-layer laminated nonwoven fabric. The air permeability of the obtained laminated nonwoven fabric was 100 cc / cm 2 / sec, and the formation index was 200.
次に、粒度250μm〜500μmに分級されたヤシガラ活性炭粉末と粒度80μm〜200μmに分級されたB型シリカゲル粉末を重量比で1:1に混合した多孔質剤と粒度250〜500μmに分級された融点83℃であるEVA系ホットメルト剤を多孔質剤とホットメルトの重量比で1:1となるように回転型粉体混合機で混合し、多孔質剤とホットメルト剤粉末の混合体を得た。次に、通常、紙や布帛のラミネートに使用される粉体散布装置を具備した熱ロール接合型のラミネート装置を用い、先に作製した積層不織布上にシリカゲルとホットメルト剤粉末の合計が200g/m2になるよう散布した。更に、スパンボンド用紡糸口金を用いて、ポリエチレンテレフタレート(PET、融点263℃)からなる平均繊径14μmのPETウエブを捕集ネット上に集積し、目付70g/m2の繊維ウエブとした後、圧着面積率が25%エンボスロールで熱圧着、一体化した不織布(通気度は、61cc/cm2/sec、地合い指数は、120)を重ね、190℃に熱せられた熱プレスロールにて接合を行い、本発明の吸湿・消臭シートを得た。 Next, a porous agent in which coconut shell activated carbon powder classified to a particle size of 250 μm to 500 μm and B-type silica gel powder classified to a particle size of 80 μm to 200 μm are mixed at a weight ratio of 1: 1 and a melting point classified to a particle size of 250 to 500 μm. The EVA hot melt agent at 83 ° C. was mixed with a rotary powder mixer so that the weight ratio of the porous agent to the hot melt was 1: 1 to obtain a mixture of the porous agent and the hot melt agent powder. It was. Next, using a hot roll bonding type laminating apparatus equipped with a powder dispersion apparatus usually used for laminating paper and fabric, the total amount of silica gel and hot melt agent powder is 200 g / g on the previously prepared laminated nonwoven fabric. It was sprayed so as to be in m 2. Further, using a spunbond spinneret, PET webs having an average fine diameter of 14 μm made of polyethylene terephthalate (PET, melting point 263 ° C.) were accumulated on a collection net to obtain a fiber web having a basis weight of 70 g / m 2 . Bonded with a hot press roll heated to 190 ° C, with a non-woven fabric (air permeability is 61 cc / cm 2 / sec, texture index is 120) that is thermocompression-bonded with an embossing roll with a crimping area ratio of 25%. The moisture absorbing / deodorizing sheet of the present invention was obtained.
得られた吸湿・消臭シートの特性を表1に示したが、シリカゲルの吸湿量と活性炭の消臭性能を低下させること無く、吸湿飽和時間が長く、吸湿・消臭性能に優れた、厚みの均一性と可撓性の良い吸湿シートであった。この吸湿・消臭シート表面にグラビア印刷機を用いて全面に活字印刷したところ、鮮明な印刷ができ、印刷適正は良好であった。 The properties of the obtained moisture absorption / deodorization sheet are shown in Table 1. The thickness of the moisture absorption saturation time is long and the moisture absorption / deodorization performance is excellent without degrading the moisture absorption amount of silica gel and the deodorization performance of activated carbon. The moisture absorption sheet had good uniformity and flexibility. When the entire surface of the moisture-absorbing / deodorizing sheet was printed using a gravure printer, clear printing was possible, and the printing suitability was good.
(実施例5)
予め、有孔フィルムとして、表面にグラビア印刷機を用いて全面に活字印刷したポリエステルフィルム(厚さ12μ)にポリエチレン(厚み15μ)を押し出しラミネートした後、孔あけ加工(孔径:0.7mm、縦・横3mmピッチの格子)した物を用い、このフィルムと実施例1の積層不織布のA層側とを熱ラミネートによって複合一体化したシート材を得た。得られたシート材のガーレ通気度は、71秒/100ccであった。
(Example 5)
As a perforated film, polyethylene (thickness 15μ) was extruded and laminated on a polyester film (thickness 12μ) printed on the entire surface using a gravure printing machine, and then punched (hole diameter: 0.7mm, lengthwise). A sheet material in which this film and the layer A side of the laminated nonwoven fabric of Example 1 were combined and integrated by thermal lamination was obtained. The sheet material thus obtained had a Gurley air permeability of 71 seconds / 100 cc.
次に、粒度250μm〜500μmに分級されたヤシガラ活性炭粉末と粒度75μm〜200μmに分級されたA型シリカゲル粉末を重量比で1:1に混合した多孔質剤と粒度250〜500μmに分級された融点110℃のポリエチレン系ホットメルト剤を多孔質剤とホットメルトの重量比で1:1となるように回転型粉体混合機で混合し、多孔質剤と活性炭とホットメルト剤粉末の混合体を得た。次に、通常、紙や布帛のラミネートに使用される粉体散布装置を具備した熱ロール接合型のラミネート装置を用い、先に作製した積層不織布のC層の上にシリカゲルとホットメルト剤粉末の合計が400g/m2になるよう散布した。更に、同様の積層不織布のC層側を粉体面に重ね、190℃に熱せられた熱プレスロールにて接合し、吸湿・消臭シートの表裏の両面がフィルムからなる本発明の吸湿・消臭シートを得た。 Next, a porous agent in which coconut shell activated carbon powder classified to a particle size of 250 μm to 500 μm and A-type silica gel powder classified to a particle size of 75 μm to 200 μm are mixed at a weight ratio of 1: 1 and a melting point classified to a particle size of 250 to 500 μm. A polyethylene hot melt agent at 110 ° C. is mixed with a rotary powder mixer so that the weight ratio of the porous agent to the hot melt is 1: 1, and a mixture of the porous agent, activated carbon, and hot melt agent powder is prepared. Obtained. Next, using a hot roll bonding type laminating apparatus equipped with a powder spraying apparatus usually used for laminating paper and fabric, silica gel and hot melt agent powder are placed on the C layer of the laminated nonwoven fabric produced previously. It sprayed so that a total might be set to 400 g / m < 2 >. Further, the layer C side of the same laminated nonwoven fabric is overlapped on the powder surface and bonded with a hot press roll heated to 190 ° C., and the moisture absorption / extinguishment of the present invention in which both the front and back sides of the moisture absorption / deodorization sheet are made of films An odor sheet was obtained.
得られた吸湿・消臭シートの特性を表2に示すが、シリカゲルの吸湿量と活性炭の消臭性能を低下させること無く吸湿・消臭性能に優れた、厚みの均一性と可撓性の良い吸湿・消臭シートであった。更に、裏印刷でも表面に活字が鮮明に現れると共に表面の印刷堅牢性に優れた吸湿性シートが得られた。 The properties of the obtained moisture absorption / deodorization sheet are shown in Table 2. The moisture absorption / deodorization performance is excellent without reducing the moisture absorption amount of silica gel and the deodorization performance of activated carbon. It was a good moisture absorption / deodorant sheet. Furthermore, a type of moisture-absorbing sheet having a clear appearance on the surface and excellent surface fastness was obtained even in reverse printing.
(比較例1)
スパンボンド用紡糸口金を用いて、ポリエチレンテレフタレート(PET、融点263℃)からなる平均繊径14μmのPETウエブを捕集ネット上に集積し、目付20g/m2の繊維ウエブとした後、圧着面積率が25%エンボスロールで熱圧着、一体化して不織布を得た。得られた不織布の通気度は、316cc/cm2/sec、地合い指数は、3
30であった。
(Comparative Example 1)
Using a spunbond spinneret, PET webs having an average fine diameter of 14 μm made of polyethylene terephthalate (PET, melting point 263 ° C.) are accumulated on a collection net to obtain a fiber web having a basis weight of 20 g / m 2 , and then a crimping area. A nonwoven fabric was obtained by thermocompression bonding and integration with an embossing roll having a rate of 25%. The resulting nonwoven fabric has an air permeability of 316 cc / cm 2 / sec and a texture index of 3
30.
次に、粒度250μm〜500μmに分級されたヤシガラ活性炭粉末と粒度80μm〜200μmに分級されたB型シリカゲル粉末を重量比で1:1に混合した多孔質剤と粒度250〜500μmに分級された融点83℃であるEVA系ホットメルト剤を多孔質剤とホットメルトの重量比で1:1となるように回転型粉体混合機で混合し、多孔質剤とホットメルト剤粉末の混合体を得た。次に、通常、紙や布帛のラミネートに使用される粉体散布装置を具備した熱ロール接合型のラミネート装置を用い、先に作製した不織布上に多孔質剤とホットメルト剤粉末の合計が400g/m2になるよう散布した。更に、同様の積層不織布を粉体面に重ね、170℃に熱せられた熱プレスロールにて接合して吸湿・消臭シートを得た。得られた吸湿・消臭シートの特性を表2に示すが、表面部分から上記混合粉末が漏れてしまい、吸湿材が約90%脱落した吸湿・消臭シートとなり、吸湿・消臭シートとしての評価ができなかった。 Next, a porous agent in which coconut shell activated carbon powder classified to a particle size of 250 μm to 500 μm and B-type silica gel powder classified to a particle size of 80 μm to 200 μm are mixed at a weight ratio of 1: 1 and a melting point classified to a particle size of 250 to 500 μm. The EVA hot melt agent at 83 ° C. was mixed with a rotary powder mixer so that the weight ratio of the porous agent to the hot melt was 1: 1 to obtain a mixture of the porous agent and the hot melt agent powder. It was. Next, using a heat roll bonding type laminating apparatus equipped with a powder spraying apparatus usually used for laminating paper and fabric, the total amount of porous agent and hot melt agent powder is 400 g on the previously produced nonwoven fabric. / M 2 was sprayed. Furthermore, the same laminated nonwoven fabric was piled up on the powder surface and joined with a hot press roll heated to 170 ° C. to obtain a moisture absorbing / deodorizing sheet. The characteristics of the obtained moisture absorbing / deodorizing sheet are shown in Table 2. The mixed powder leaks from the surface portion, and the moisture absorbing / deodorizing sheet is obtained by removing about 90% of the moisture absorbing material. Evaluation was not possible.
(比較例2)
積層不織布のC層として、スパンボンド用の2成分紡糸口金を用いて、鞘成分に高密度ポリエチレン(HDPE、融点130℃)、芯成分にポリエチレンテレフタレート(PET、融点263℃)からなる平均繊径16μmの鞘芯型複合繊維ウエブを作成した。
B層は、ポリエチレンテレフタレート(PET、融点263℃)を用い、メルトブロー用噴射口金から、平均繊径2μmの極細繊維ウエブを吐出し、C層上に積層した。
さらに、その上に、A層のポリエチレンテレフタレート(PET、融点263℃)をスパンボンド用紡糸口金を用いて、平均繊径14μmのPETウエブを捕集ネット上に集積した。
(Comparative Example 2)
As the C layer of the laminated nonwoven fabric, a two-component spinneret for spunbond is used, and the average fiber diameter is made of high-density polyethylene (HDPE, melting point 130 ° C) as the sheath component and polyethylene terephthalate (PET, melting point 263 ° C) as the core component. A 16 μm sheath-core type composite fiber web was prepared.
For layer B, polyethylene terephthalate (PET, melting point 263 ° C.) was used, and an ultrafine fiber web having an average fine diameter of 2 μm was discharged from a melt blown nozzle and laminated on the C layer.
Further, a PET web having an average fine diameter of 14 μm was accumulated on a collection net of polyethylene terephthalate (PET, melting point 263 ° C.) of layer A using a spunbond spunbond.
得られた全体として目付70g/m2の積層繊維ウエブを圧着面積率が25%エンボスロールで熱圧着、一体化して積層不織布を得た。得られた積層不織布の通気度は、9cc/cm2/sec、地合い指数は、91であった。次に、粒度250μm〜500μmに分級されたヤシガラ活性炭粉末と粒度80μm〜200μmに分級されたB型シリカゲル粉末を重量比で1:1に混合した多孔質剤を通常、紙や布帛のラミネートに使用される粉体散布装置を具備した熱ロール接合型のラミネート装置を用い、先に作製した積層不織布のC層上に多孔質剤の粉末の合計が200g/m2になるよう散布した。更に、同様の積層不織布のC層を粉末面上に重ね、190℃に熱せられた熱プレスロールにて接合して吸湿・消臭シートを得ようとしたが積層不織布間の接着が弱く、積層不織布に接しない多孔質材粉末が脱落して吸湿・消臭シートが得られなかった。 As a whole, a laminated fiber web having a basis weight of 70 g / m 2 was thermocompression-bonded and integrated with an embossing roll having a crimping area ratio of 25% to obtain a laminated nonwoven fabric. The air permeability of the obtained laminated nonwoven fabric was 9 cc / cm 2 / sec, and the formation index was 91. Next, a porous agent in which coconut husk activated carbon powder classified to a particle size of 250 μm to 500 μm and B type silica gel powder classified to a particle size of 80 μm to 200 μm is mixed at a weight ratio of 1: 1 is usually used for laminating paper and fabrics. Using a heat roll bonding type laminating apparatus equipped with a powder spraying apparatus, the powder of the porous agent was sprayed onto the layer C of the laminated nonwoven fabric prepared in advance so that the total amount of the powder of the porous agent was 200 g / m 2 . Furthermore, layer C of the same laminated nonwoven fabric was layered on the powder surface and joined with a hot press roll heated to 190 ° C. to obtain a hygroscopic / deodorant sheet. The porous material powder not in contact with the nonwoven fabric dropped off, and a moisture absorption / deodorant sheet could not be obtained.
本発明の吸湿性シートは、幅広い範囲で通気性をコントロールすることができることから、主に、食品関連、住宅関連、医薬品関連、精密機器関連と雑貨関連など多くの分野の調湿、除湿、消臭あるいは乾燥用のシートとして活用できる。 Since the hygroscopic sheet of the present invention can control the air permeability in a wide range, it is mainly used for humidity control, dehumidification, and disinfection in many fields such as food-related, housing-related, pharmaceutical-related, precision equipment-related, and general merchandise-related. It can be used as a sheet for smell or drying.
Claims (11)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2007190925A JP5191180B2 (en) | 2007-07-23 | 2007-07-23 | Hygroscopic / deodorant sheet |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2007190925A JP5191180B2 (en) | 2007-07-23 | 2007-07-23 | Hygroscopic / deodorant sheet |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2009022924A JP2009022924A (en) | 2009-02-05 |
JP5191180B2 true JP5191180B2 (en) | 2013-04-24 |
Family
ID=40395257
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2007190925A Active JP5191180B2 (en) | 2007-07-23 | 2007-07-23 | Hygroscopic / deodorant sheet |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP5191180B2 (en) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5260391B2 (en) * | 2009-04-06 | 2013-08-14 | 旭化成せんい株式会社 | Functional sheet |
US9321251B2 (en) * | 2009-06-16 | 2016-04-26 | Pleotint, L.L.C. | Method and constructions for moisture sensitive layers and structures having reduced moisture content in moisture sensitive layers |
JP5888812B2 (en) * | 2012-04-13 | 2016-03-22 | ユニチカ株式会社 | Laminated nonwoven fabric |
JP2015150523A (en) * | 2014-02-17 | 2015-08-24 | ワコー株式会社 | Dehumidifier |
JP2017006365A (en) * | 2015-06-22 | 2017-01-12 | マルワ 株式会社 | Functional mat and manufacturing method for functional mat |
JP7135431B2 (en) * | 2018-05-16 | 2022-09-13 | 王子ホールディングス株式会社 | laminated sheet |
TWI750611B (en) | 2019-03-22 | 2021-12-21 | 日商旭化成股份有限公司 | Non-woven fabrics for packaging materials for sterilization |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0381658U (en) * | 1989-12-08 | 1991-08-21 | ||
JPH11190584A (en) * | 1997-12-26 | 1999-07-13 | Sharp Corp | Refrigerator |
JP2001009955A (en) * | 1999-06-28 | 2001-01-16 | Asahi Kako Kk | Moistureproof, antibacterial and deodorizing laminated material and production thereof |
JP4748838B2 (en) * | 2000-09-20 | 2011-08-17 | 旭化成せんい株式会社 | Thermal adhesive composite sheet |
JP4189725B2 (en) * | 2002-09-09 | 2008-12-03 | 東洋紡績株式会社 | Humidity control layered product and manufacturing method thereof |
-
2007
- 2007-07-23 JP JP2007190925A patent/JP5191180B2/en active Active
Also Published As
Publication number | Publication date |
---|---|
JP2009022924A (en) | 2009-02-05 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP5191180B2 (en) | Hygroscopic / deodorant sheet | |
JP4972342B2 (en) | Hygroscopic sheet | |
JPH1099631A (en) | Desiccant container | |
US20080206459A1 (en) | High moisture absorbent nonwoven fabric structure and production method thereof | |
JP2011104529A (en) | Harmful gas removing material | |
US6821594B2 (en) | Oxygen-absorbing label | |
JP5030427B2 (en) | Bag | |
JP2014046587A (en) | Laminated film applied with functional porous body, laminate and package | |
JP4748838B2 (en) | Thermal adhesive composite sheet | |
JP5110999B2 (en) | Disposable body warmers | |
US20060283996A1 (en) | Reinforced absorbent article | |
KR100477525B1 (en) | Multilayer deodorant filter medium and its manufacturing method | |
JP5888812B2 (en) | Laminated nonwoven fabric | |
KR850001957B1 (en) | Oxygen absorption package | |
JPH0429840A (en) | Gas permeable packaging material and packaged body therewith | |
JP2004314311A (en) | Moisture absorbing and discharging nonwoven fabric structure and moisture conditioning agent using it | |
JP2006271567A (en) | Gas removal filter element and its manufacturing method | |
JP3946576B2 (en) | Cover material, filter medium for gas removal and gas removal unit using the same | |
JP4551253B2 (en) | Gas removal filter element and manufacturing method thereof | |
JP3487754B2 (en) | Deodorizing filter medium and method for producing the same | |
JP4426072B2 (en) | Laminated body for filling and packaging and bag-like material comprising the same | |
JP4301398B2 (en) | Stacked and integrated food absorbent mat | |
JPH0471837A (en) | Gas-permeable composite sheet | |
JP2640964B2 (en) | Freshness retaining sheet, method for producing the same, and apparatus for producing the same | |
JP3110440B2 (en) | New air-permeable and heat-sealed laminated sheet |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20100716 |
|
A977 | Report on retrieval |
Free format text: JAPANESE INTERMEDIATE CODE: A971007 Effective date: 20120222 |
|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20120228 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20120423 |
|
TRDD | Decision of grant or rejection written | ||
A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20130129 |
|
A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20130129 |
|
R150 | Certificate of patent or registration of utility model |
Ref document number: 5191180 Country of ref document: JP Free format text: JAPANESE INTERMEDIATE CODE: R150 Free format text: JAPANESE INTERMEDIATE CODE: R150 |
|
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20160208 Year of fee payment: 3 |
|
S111 | Request for change of ownership or part of ownership |
Free format text: JAPANESE INTERMEDIATE CODE: R313111 |
|
R350 | Written notification of registration of transfer |
Free format text: JAPANESE INTERMEDIATE CODE: R350 |
|
S531 | Written request for registration of change of domicile |
Free format text: JAPANESE INTERMEDIATE CODE: R313531 |
|
R350 | Written notification of registration of transfer |
Free format text: JAPANESE INTERMEDIATE CODE: R350 |
|
S111 | Request for change of ownership or part of ownership |
Free format text: JAPANESE INTERMEDIATE CODE: R313111 |
|
R350 | Written notification of registration of transfer |
Free format text: JAPANESE INTERMEDIATE CODE: R350 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |