JP2933667B2 - Composite sheet for filling and packaging - Google Patents
Composite sheet for filling and packagingInfo
- Publication number
- JP2933667B2 JP2933667B2 JP2941890A JP2941890A JP2933667B2 JP 2933667 B2 JP2933667 B2 JP 2933667B2 JP 2941890 A JP2941890 A JP 2941890A JP 2941890 A JP2941890 A JP 2941890A JP 2933667 B2 JP2933667 B2 JP 2933667B2
- Authority
- JP
- Japan
- Prior art keywords
- layer
- composite sheet
- paper
- sheath
- component
- 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.)
- Expired - Fee Related
Links
- 239000002131 composite material Substances 0.000 title claims description 28
- 238000004806 packaging method and process Methods 0.000 title claims description 6
- 239000000306 component Substances 0.000 claims description 24
- 239000000835 fiber Substances 0.000 claims description 22
- 239000004745 nonwoven fabric Substances 0.000 claims description 17
- 238000002844 melting Methods 0.000 claims description 16
- 230000008018 melting Effects 0.000 claims description 16
- 239000008358 core component Substances 0.000 claims description 13
- 230000004927 fusion Effects 0.000 claims description 4
- 239000010410 layer Substances 0.000 description 21
- 239000002274 desiccant Substances 0.000 description 9
- 238000007789 sealing Methods 0.000 description 9
- -1 polyethylene Polymers 0.000 description 7
- 229920001577 copolymer Polymers 0.000 description 5
- 239000000843 powder Substances 0.000 description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
- 239000004698 Polyethylene Substances 0.000 description 4
- 239000000853 adhesive Substances 0.000 description 4
- 230000001070 adhesive effect Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000035699 permeability Effects 0.000 description 4
- 229920000573 polyethylene Polymers 0.000 description 4
- 230000003014 reinforcing effect Effects 0.000 description 4
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 3
- 235000011941 Tilia x europaea Nutrition 0.000 description 3
- 239000004571 lime Substances 0.000 description 3
- 229920000642 polymer Polymers 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 238000003851 corona treatment Methods 0.000 description 2
- 239000011229 interlayer Substances 0.000 description 2
- 238000005304 joining Methods 0.000 description 2
- 238000010030 laminating Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000005020 polyethylene terephthalate Substances 0.000 description 2
- 229920000139 polyethylene terephthalate Polymers 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 229920003002 synthetic resin Polymers 0.000 description 2
- 239000000057 synthetic resin Substances 0.000 description 2
- 229920001169 thermoplastic Polymers 0.000 description 2
- 239000004416 thermosoftening plastic Substances 0.000 description 2
- 101100160821 Bacillus subtilis (strain 168) yxdJ gene Proteins 0.000 description 1
- 239000004952 Polyamide Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 241000206607 Porphyra umbilicalis Species 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 235000009508 confectionery Nutrition 0.000 description 1
- 230000032798 delamination Effects 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000005038 ethylene vinyl acetate Substances 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229920001903 high density polyethylene Polymers 0.000 description 1
- 239000004700 high-density polyethylene Substances 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 229920001684 low density polyethylene Polymers 0.000 description 1
- 239000004702 low-density polyethylene Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 239000004627 regenerated cellulose Substances 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
Landscapes
- Wrappers (AREA)
- Laminated Bodies (AREA)
- Multicomponent Fibers (AREA)
- Nonwoven Fabrics (AREA)
Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明は、微粉体を包装する袋に用いる複合シートに
関する。Description: TECHNICAL FIELD The present invention relates to a composite sheet used for a bag for packaging fine powder.
吸湿にろい商品価値が悪化しやすい海苔、菓子などの
食品容器には、シリカゲル、石灰などの粉末あるいは固
型状の乾燥剤を袋に詰めたものを共存させて、吸湿を防
ぐ例が多い。また、鮮度保持の為には脱酸素剤、臭気除
去の為には活性炭を袋に詰めたものが用いられている。Food containers, such as laver and confectionery, which tend to deteriorate in merchandise value that tend to deteriorate due to moisture absorption, often contain silica gel, lime, or other powdered or solid desiccants in bags to prevent moisture absorption. . Further, a bag packed with an activated carbon is used for keeping freshness, and for removing odor, a bag filled with activated carbon is used.
これらの粉体袋に使用する材料は、紙に接着成分とし
てポリエチレンなどの熱可塑性合成樹脂のフイルムをラ
ミネートし、その上に強力補強のためのスピリットヤー
ン（以下ワリフと記す）を張り合せ、そのうえにまたヒ
ートシール性付与のためにポリエチレン等をラミネート
した四層シートである。該シートは、ヒートシール法に
より袋に製造される。しかしながら、補強に使われてい
るワリフはネット構造であるがために、紙とワリフとの
積層部及びワリフ隙間部は内部の鋭角石の衝撃に弱い。
また特にシートの折り返し部は、摩耗、衝撃等によって
穴があく場合が多く、シートの全面補強にならない。ま
た、ワリフの接着成分としてポリエチレンなどの熱可塑
性合成樹脂のフイルムを紙にラミネートして用いている
ため、乾燥剤袋として要求される適度な通気性を付与さ
せるためには、該複合シートに穴をあけ加工を施す必要
がある。また、乾燥剤を充填し、ヒートシール法によっ
て製袋する際、ヒートシール部分のワリフは熱で溶け、
ヒートシール境界部分が弱くなり、内容物がもれるおそ
れがあり、強力値とヒートシール強度とを同時に満足す
るシートはなかった。更にワリフの織目により表層紙に
凹凸が生じ印刷物が見栄えよくきれいにできない欠点が
あった。The material used for these powder bags is to laminate a film of thermoplastic synthetic resin such as polyethylene on paper as an adhesive component, and then attach a spirit yarn (hereinafter referred to as "warifu") for strong reinforcement on top of that. Further, it is a four-layer sheet laminated with polyethylene or the like to impart heat sealability. The sheet is manufactured into a bag by a heat sealing method. However, since the warif used for reinforcement has a net structure, the laminated portion of the paper and the wariff and the gap between the warifs are vulnerable to the impact of the sharp stone inside.
In particular, the folded portion of the sheet often has a hole due to abrasion, impact, or the like, and the sheet is not reinforced entirely. Also, since a film of a thermoplastic synthetic resin such as polyethylene is used by laminating the paper as an adhesive component of the wari, in order to impart appropriate air permeability required as a desiccant bag, a hole is required in the composite sheet. Must be processed. Also, when filling with a desiccant and making a bag by the heat sealing method, the warifu in the heat sealing part melts with heat,
There was a possibility that the heat seal boundary portion was weakened and the contents leaked, and there was no sheet satisfying both the strength value and the heat seal strength at the same time. Further, there is a drawback that unevenness is generated on the surface paper due to the weave of the warif, and the printed matter cannot be seen and cleaned clearly.
本発明の課題は、上記、従来の粉末充填用シートのも
つ欠点を解消した二層からなる充填包装用複合シートを
提供することにある。An object of the present invention is to provide a composite sheet for filling and packaging comprising two layers, which solves the above-mentioned disadvantages of the conventional sheet for powder filling.
かかる従来の上記欠点を全て改良すべく鋭意研究を重
ねた結果、補強効果及びシール強度の点で、鞘芯型複合
繊維からなる不織布を用いることが最適であることを見
い出し、本発明に到った。As a result of intensive studies to improve all of the above-mentioned conventional drawbacks, it has been found that it is optimal to use a nonwoven fabric made of a sheath-core composite fiber in terms of reinforcing effect and sealing strength, and reached the present invention. Was.
すなわち、本発明は第一層が紙、第二層が鞘芯型複合
繊維からなる長繊維不織布で構成された複合シートであ
って、該不織布の鞘成分の融点が160℃以下で、芯成分
の融点は鞘成分の融点より30℃以上高く、鞘成分と芯成
分との割合が2:8〜8:2であり、鞘成分の熱融着によっ
て、第一層と第二層が接合一体化され、層間装着協力が
400g/15mm巾以上であることを特徴とする充填包装用複
合シートである。That is, the present invention is a composite sheet composed of a long-fiber nonwoven fabric comprising a first layer of paper and a second layer of sheath-core composite fiber, wherein the sheath component of the nonwoven fabric has a melting point of 160 ° C. or less, Has a melting point of at least 30 ° C. higher than the melting point of the sheath component, the ratio of the sheath component to the core component is 2: 8 to 8: 2, and the first layer and the second layer are integrally joined by heat fusion of the sheath component. And cooperation between layers
A composite sheet for filling and packaging characterized by being at least 400 g / 15 mm in width.
本発明で使用される不織布は、長繊維不織布が使用で
きる。As the nonwoven fabric used in the present invention, a long-fiber nonwoven fabric can be used.
本発明の第一層に用いる紙とは、パルプ、天然セルロ
ース、再生セルロース等から得られた通常の洋紙又は和
紙をいう。これらの紙には、例えば、軽包装紙、印刷
紙、純白紙等がある。乾燥剤用袋として欠かせない内容
物、注意事項等の印刷性、製袋、粉末充填スピードの向
上につながる耐熱性、価格などの点を考慮して選択され
る。紙の目付は、20〜80g/m2、好ましくは30〜50g/m2で
強力値、価格等を考慮して決定される。The paper used for the first layer of the present invention refers to ordinary paper or Japanese paper obtained from pulp, natural cellulose, regenerated cellulose or the like. These papers include, for example, light wrapping paper, printing paper, pure white paper, and the like. The selection is made in consideration of the contents indispensable as a desiccant bag, the printability of precautions, etc., bag making, heat resistance which leads to an improvement in powder filling speed, and price. The basis weight of the paper is 20 to 80 g / m 2 , preferably 30 to 50 g / m 2 , and is determined in consideration of the strength value, price, and the like.
本発明の第二層に用いる不織布は芯成分の融点が鞘成
分の融点より30℃以上高いような鞘芯型複合繊維から成
ることが必要である。The nonwoven fabric used for the second layer of the present invention needs to be composed of a sheath-core composite fiber in which the melting point of the core component is higher than the melting point of the sheath component by 30 ° C. or more.
第二層として、単一成分繊維より成る不織布を用いた
場合、第一層（紙）との熱圧着による接合時に、熱圧着
部の繊維が溶融し、フイルム状となってしまうため、得
られる複合シートに十分な強度補強効果を与えることが
できない。When a non-woven fabric made of a single component fiber is used as the second layer, the fiber in the thermocompression-bonded portion is melted and formed into a film when bonded to the first layer (paper) by thermocompression, which is obtained. A sufficient strength reinforcing effect cannot be given to the composite sheet.
また、第二層として、芯成分と鞘成分との融点差が30
℃未満の鞘芯型複合繊維から成る不織布を用いた場合も
同様に、第一層（紙）との熱圧着の際、鞘成分のみなら
ず芯成分までも溶融変形してしまうため、強度補強効果
は不十分となる。Further, as the second layer, the difference in melting point between the core component and the sheath component is 30.
Similarly, when a nonwoven fabric made of a sheath-core type composite fiber having a temperature of less than 100 ° C. is used, not only the sheath component but also the core component is melted and deformed during thermocompression bonding with the first layer (paper). The effect will be insufficient.
しかし本発明のごとく第二層として、芯成分の融点が
鞘成分の融点より30℃以上高いような鞘芯型複合繊維よ
りなる不織布を用いた場合は、第一層（紙）との熱圧着
後においても芯成分は何ら溶融変形せず、熱圧着前の繊
維状態をそのまま保持したままであるので、得られる複
合シートは層間剥離強力、強力値、ヒートシール強度等
粉末体充填用シートとしての使用に十分耐え得る特性を
有したものとなる。However, when a nonwoven fabric made of a sheath-core composite fiber in which the melting point of the core component is higher than the melting point of the sheath component by 30 ° C. or more is used as the second layer, thermocompression bonding with the first layer (paper) is performed. Even afterwards, the core component does not melt and deform at all, and the fiber state before thermocompression bonding is kept as it is, so the obtained composite sheet is a sheet for powder filling such as delamination strength, strength value, heat seal strength etc. It has characteristics that can be sufficiently used.
この鞘芯型複合繊維からなる不織布の鞘成分には、低
密度ポリエチレン、高密度ポリエチレン、エチレン−プ
ロピレン共重合体、エチレン−ブテン共重合体、エチレ
ン−ヘキセン共重合体、エチレン−オクテン共重合体、
エチレン−酢酸ビニル共重合体、エチレン−アクリル算
エステル共重合体、等を任意に使用することができるが
紙との熱接着性、ヒートシール性等を考慮すると融点が
160℃以下、好ましくは、130℃以下であることが好まし
い。The sheath component of the nonwoven fabric made of the sheath-core type composite fiber includes low-density polyethylene, high-density polyethylene, ethylene-propylene copolymer, ethylene-butene copolymer, ethylene-hexene copolymer, ethylene-octene copolymer ,
Ethylene-vinyl acetate copolymer, ethylene-acrylic ester copolymer, etc. can be used arbitrarily, but the melting point is considered in consideration of heat adhesion to paper, heat sealing properties, and the like.
It is preferably 160 ° C. or lower, more preferably 130 ° C. or lower.
芯成分には、前記鞘成分より30℃以上高い融点を有す
るものであれば、ポリエチレンテレフタレート、ポリア
ミド、ポリプロピレン等に一般に繊維用として工業的に
使用されているもの、繊維形成能を有するそれらの共重
合体、混合物等を選ぶことができる。If the core component has a melting point higher than that of the sheath component by 30 ° C. or more, polyethylene terephthalate, polyamide, polypropylene, etc., which are generally used industrially for fibers, and those having a fiber-forming ability are used. Polymers, mixtures and the like can be selected.
鞘成分と芯成分との割合は、2:8〜8:2、好ましくは3:
7〜7:3である。鞘成分の比率が小さい場合は紙との接着
性及び製袋時のヒートシール性が悪くなる。また、芯成
分の割合が小さい場合は引裂き及び引張り強度が低下す
る。The ratio of the sheath component and the core component is 2: 8 to 8: 2, preferably 3:
7-7: 3. When the ratio of the sheath component is small, the adhesiveness to paper and the heat sealing property at the time of bag making deteriorate. In addition, when the ratio of the core component is small, the tear and the tensile strength decrease.
繊維の太さは１〜15デニール、好ましくは２〜10デニ
ールである。繊維の太さが細い場合は引裂強力の補強効
果が小さく、また繊維の太さが太い場合は引張りの補強
効果が小さいとともに見栄えが悪くなる。The thickness of the fiber is 1 to 15 denier, preferably 2 to 10 denier. When the thickness of the fiber is small, the effect of reinforcing the tear strength is small, and when the thickness of the fiber is large, the effect of reinforcing the tension is small and the appearance is poor.
スパンボンド不織布の目付は５〜100g/m2、好ましく
は10〜80g/m2であり、強力値、価格等を考慮して決定さ
れる。The basis weight of the spunbond nonwoven fabric is 5 to 100 g / m 2 , preferably 10 to 80 g / m 2 , and is determined in consideration of a strength value, a price, and the like.
該複合シートは、既存の加熱、加圧設備を用い鞘芯型
複合繊維からなるスパンボンド不織布の鞘成分ポリマー
の熱融着によって接合一体化することができる。なお、
接合一体化する前に紙及び不織布の接合面にコロナ放電
処理を施せばより強固な層間接着強力が得られる。但
し、この時の温度、スピード等の条件は、芯成分の高融
点ポリマーが熱的損傷を受けず繊維状態を保持し得る範
囲に調製することが望ましい。The composite sheet can be joined and integrated by heat fusion of a sheath component polymer of a spunbonded nonwoven fabric made of a sheath-core composite fiber using existing heating and pressurizing equipment. In addition,
If a corona discharge treatment is applied to the joining surface of the paper and the nonwoven fabric before joining and integration, a stronger interlayer adhesion strength can be obtained. However, the conditions such as temperature and speed at this time are desirably adjusted so that the high melting point polymer of the core component is not thermally damaged and can maintain the fiber state.
該複合シートは、第一層と第二層間に何ら接着成分を
介することのない第二層を構成する繊維の鞘成分の熱融
着によるものであるため、従来の紙とワリフとをポリエ
チレン等のフイルムのラミネートによって接着させたも
ののように乾燥剤袋として要求される通気性付与のため
に穴あけ加工等の工程を経ることなくても十分な通気性
を有しており、従来のシートに比べ、極めて簡略な工程
で低コストにて製造することが可能である。The composite sheet is obtained by heat-sealing the sheath component of the fiber constituting the second layer without any adhesive component between the first layer and the second layer. It has sufficient air permeability without going through a process such as perforation processing to provide the air permeability required as a desiccant bag, such as that bonded by film lamination, compared to conventional sheets. It can be manufactured at extremely low cost by a very simple process.
以下、本発明の複合シートを実施例により説明する。
但し本発明は、下記実施例に限定されるものではない。Hereinafter, the composite sheet of the present invention will be described with reference to examples.
However, the present invention is not limited to the following examples.
実施例１ 幅100cmの純白紙40g/m2と鞘成分がポリエチレン（融
点130℃）芯成分がポリエチレンテレフタレート（融点2
55℃）で鞘成分と芯成分との割合を5:5とする複合繊維
からなるスパンボンド不織布30g/m2を一体の加熱金属ロ
ールとゴムロールとからなる熱ラミネート機にセット
し、両者共50W/m2/minのコロナ放電処理を行い、金属ロ
ール温度125℃、圧力10kg/cm、ラインスピード15m/分で
熱圧着加工した。その結果、熱融着なので層間接着強力
も400g/15mm巾以上と良好であり、紙の持つ通気性をそ
のまま生かした、二層構造の複合シートが得られた。こ
うして得られた複合シートを東洋自動ロータリー製の石
灰充填機にセットし、シール温度180℃、１分間に220シ
ョットで35gの石灰乾燥剤を充填し、第３図に示すよう
な袋に仕上げた。その結果、表面平滑でシール強度2.7k
g/15mm巾の強い乾燥剤袋に仕上げることができた。Example 1 Pure white paper 40 g / m 2 with a width of 100 cm, a sheath component of polyethylene (melting point 130 ° C.), and a core component of polyethylene terephthalate (melting point 2
At 55 ° C), 30 g / m 2 of a spunbond nonwoven fabric made of a conjugate fiber with a ratio of a sheath component and a core component of 5: 5 is set on a heat laminating machine consisting of an integral heated metal roll and a rubber roll, and both are set to 50 W A corona discharge treatment of / m 2 / min was performed, and thermocompression bonding was performed at a metal roll temperature of 125 ° C, a pressure of 10 kg / cm, and a line speed of 15 m / min. As a result, due to the heat fusion, the interlayer adhesive strength was as good as 400 g / 15 mm width or more, and a composite sheet having a two-layer structure was obtained, taking advantage of the air permeability of the paper. The composite sheet thus obtained was set on a lime filling machine manufactured by Toyo Automatic Rotary Co., Ltd., filled with 35 g of lime desiccant at a sealing temperature of 180 ° C. and 220 shots per minute, and finished in a bag as shown in FIG. . As a result, the surface is smooth and the seal strength is 2.7k
g / 15mm width strong desiccant bag.
本発明の充填包装用複合シートは、全面補強、表面平
滑、ヒートシール強度及びヒートシール境界部分の強度
工場、穴あけ工程不要等のすぐれたものである。さらに
従来からのヒートシール加工等の袋製造工程を、そのま
ま適用でき有用である。The composite sheet for filling and packaging according to the present invention is excellent in that the entire surface is reinforced, the surface is smooth, the heat seal strength and the strength at the heat seal boundary are not required, and a drilling step is unnecessary. Further, the conventional bag manufacturing process such as heat sealing can be applied as it is and is useful.
第１図は、本発明による複合シート断面の模式図、第２
図は、本複合シートを用いて製造した乾燥剤袋の横断面
の模式図、第３図は、本発明の複合シートを用いて製造
した乾燥剤袋の斜視図である。 １……第一層（紙）、２……第二層（鞘芯型複合繊維か
らなる不織布）、３……シール部、４……乾燥剤。FIG. 1 is a schematic view of a cross section of a composite sheet according to the present invention, FIG.
The figure is a schematic cross-sectional view of a desiccant bag manufactured using the present composite sheet, and FIG. 3 is a perspective view of a desiccant bag manufactured using the composite sheet of the present invention. 1... First layer (paper), 2... 2nd layer (nonwoven fabric made of sheath-core type composite fiber), 3... Seal part, 4.
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.6 識別記号 ＦＩ Ｄ０１Ｆ 8/14 Ｄ０１Ｆ 8/14 Ｚ Ｄ０４Ｈ 1/54 Ｄ０４Ｈ 1/54 Ａ (58)調査した分野(Int.Cl.6，ＤＢ名) B32B 1/00 - 35/00 D04H 1/00 - 18/00 D01D 5/34 D01F 8/06 D01F 8/14 B65D 65/40 ──────────────────────────────────────────────────続 き Continuation of front page (51) Int.Cl. 6 identification symbol FI D01F 8/14 D01F 8/14 Z D04H 1/54 D04H 1/54 A (58) Investigated field (Int.Cl. 6 , DB Name) B32B 1/00-35/00 D04H 1/00-18/00 D01D 5/34 D01F 8/06 D01F 8/14 B65D 65/40
Claims (1)
なる長繊維不織布で構成された複合シートであって、該
不織布の鞘成分の融点が160℃以下で、芯成分の融点は
鞘成分の融点より30℃以上高く、鞘成分と芯成分との割
合が2:8〜8:2であり、鞘成分の熱融着によって、第一層
と第二層が接合一体化され、層間装着協力が400g/15mm
巾以上であることを特徴とする充填包装用複合シート。1. A composite sheet comprising a first layer of paper and a second layer of a long-fiber non-woven fabric comprising a sheath-core type composite fiber, wherein the non-woven fabric has a sheath component having a melting point of 160 ° C. or less, Has a melting point of at least 30 ° C. higher than the melting point of the sheath component, the ratio of the sheath component to the core component is 2: 8 to 8: 2, and the first layer and the second layer are integrally joined by heat fusion of the sheath component. 400g / 15mm
A composite sheet for filling and packaging, which is not less than a width.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2941890A JP2933667B2 (en) | 1990-02-13 | 1990-02-13 | Composite sheet for filling and packaging |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2941890A JP2933667B2 (en) | 1990-02-13 | 1990-02-13 | Composite sheet for filling and packaging |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03234618A JPH03234618A (en) | 1991-10-18 |
| JP2933667B2 true JP2933667B2 (en) | 1999-08-16 |
Family
ID=12275582
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2941890A Expired - Fee Related JP2933667B2 (en) | 1990-02-13 | 1990-02-13 | Composite sheet for filling and packaging |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2933667B2 (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3211447B2 (en) * | 1993-01-25 | 2001-09-25 | ダイキン工業株式会社 | Method of laminating breathable sheet material |
| TW530018B (en) * | 2000-01-14 | 2003-05-01 | Tecksom Internat Ltd | A package incorporating a pressure venting and sheet of film material and related method of manufacturing the same |
| JP4482241B2 (en) * | 2000-08-03 | 2010-06-16 | 出光興産株式会社 | Package |
| CN1492807A (en) * | 2001-02-23 | 2004-04-28 | 出光石油化学株式会社 | Laminate for packaging and package |
| JP2009106878A (en) * | 2007-10-31 | 2009-05-21 | Denso Corp | Fuel filter |
| CN104404836A (en) * | 2014-11-25 | 2015-03-11 | 上海护理佳实业有限公司 | Composite paper |
| CN109228562B (en) * | 2018-07-05 | 2020-09-15 | 苏州广型模具有限公司 | Cover plate for metal cutting |
-
1990
- 1990-02-13 JP JP2941890A patent/JP2933667B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH03234618A (en) | 1991-10-18 |
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