JPS62263321A - Polyolefin based heat fusible fiber - Google Patents
Polyolefin based heat fusible fiberInfo
- Publication number
- JPS62263321A JPS62263321A JP61101059A JP10105986A JPS62263321A JP S62263321 A JPS62263321 A JP S62263321A JP 61101059 A JP61101059 A JP 61101059A JP 10105986 A JP10105986 A JP 10105986A JP S62263321 A JPS62263321 A JP S62263321A
- Authority
- JP
- Japan
- Prior art keywords
- fibers
- component
- sheath
- petroleum resin
- heat
- 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.)
- Granted
Links
- 239000000835 fiber Substances 0.000 title claims abstract description 58
- 229920000098 polyolefin Polymers 0.000 title claims abstract description 6
- 229920005989 resin Polymers 0.000 claims abstract description 29
- 239000011347 resin Substances 0.000 claims abstract description 28
- 239000003208 petroleum Substances 0.000 claims abstract description 27
- 238000002844 melting Methods 0.000 claims abstract description 13
- 239000000203 mixture Substances 0.000 claims abstract description 11
- 230000008018 melting Effects 0.000 claims abstract description 9
- 229920005672 polyolefin resin Polymers 0.000 claims abstract description 9
- 239000002131 composite material Substances 0.000 claims description 16
- -1 polyethylene Polymers 0.000 abstract description 13
- 238000009987 spinning Methods 0.000 abstract description 12
- 239000000463 material Substances 0.000 abstract description 7
- 125000002723 alicyclic group Chemical group 0.000 abstract description 3
- 239000004698 Polyethylene Substances 0.000 abstract description 2
- 239000003086 colorant Substances 0.000 abstract description 2
- 229920000573 polyethylene Polymers 0.000 abstract description 2
- 239000003381 stabilizer Substances 0.000 abstract description 2
- 150000004996 alkyl benzenes Chemical class 0.000 abstract 1
- 239000004745 nonwoven fabric Substances 0.000 description 30
- 239000000306 component Substances 0.000 description 24
- 230000004927 fusion Effects 0.000 description 19
- 125000003118 aryl group Chemical group 0.000 description 10
- 230000000052 comparative effect Effects 0.000 description 10
- 239000008358 core component Substances 0.000 description 10
- 239000004743 Polypropylene Substances 0.000 description 9
- 229920001903 high density polyethylene Polymers 0.000 description 9
- 239000004700 high-density polyethylene Substances 0.000 description 9
- 229920001155 polypropylene Polymers 0.000 description 9
- 238000000034 method Methods 0.000 description 8
- 229920001577 copolymer Polymers 0.000 description 5
- 239000002994 raw material Substances 0.000 description 5
- 238000012360 testing method Methods 0.000 description 5
- RRHGJUQNOFWUDK-UHFFFAOYSA-N Isoprene Chemical compound CC(=C)C=C RRHGJUQNOFWUDK-UHFFFAOYSA-N 0.000 description 4
- 239000000853 adhesive Substances 0.000 description 4
- 230000001070 adhesive effect Effects 0.000 description 4
- 238000004049 embossing Methods 0.000 description 4
- 239000004744 fabric Substances 0.000 description 4
- 229920000642 polymer Polymers 0.000 description 4
- 238000007789 sealing Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- YBYIRNPNPLQARY-UHFFFAOYSA-N 1H-indene Chemical compound C1=CC=C2CC=CC2=C1 YBYIRNPNPLQARY-UHFFFAOYSA-N 0.000 description 2
- 239000004594 Masterbatch (MB) Substances 0.000 description 2
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 2
- 125000001931 aliphatic group Chemical group 0.000 description 2
- 238000007664 blowing Methods 0.000 description 2
- ZSWFCLXCOIISFI-UHFFFAOYSA-N cyclopentadiene Chemical compound C1C=CC=C1 ZSWFCLXCOIISFI-UHFFFAOYSA-N 0.000 description 2
- 229920001684 low density polyethylene Polymers 0.000 description 2
- 239000004702 low-density polyethylene Substances 0.000 description 2
- YWAKXRMUMFPDSH-UHFFFAOYSA-N pentene Chemical compound CCCC=C YWAKXRMUMFPDSH-UHFFFAOYSA-N 0.000 description 2
- QMMOXUPEWRXHJS-UHFFFAOYSA-N pentene-2 Natural products CCC=CC QMMOXUPEWRXHJS-UHFFFAOYSA-N 0.000 description 2
- 229920000728 polyester Polymers 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000009864 tensile test Methods 0.000 description 2
- PMJHHCWVYXUKFD-SNAWJCMRSA-N (E)-1,3-pentadiene Chemical compound C\C=C\C=C PMJHHCWVYXUKFD-SNAWJCMRSA-N 0.000 description 1
- LRTOHSLOFCWHRF-UHFFFAOYSA-N 1-methyl-1h-indene Chemical compound C1=CC=C2C(C)C=CC2=C1 LRTOHSLOFCWHRF-UHFFFAOYSA-N 0.000 description 1
- HECLRDQVFMWTQS-RGOKHQFPSA-N 1755-01-7 Chemical compound C1[C@H]2[C@@H]3CC=C[C@@H]3[C@@H]1C=C2 HECLRDQVFMWTQS-RGOKHQFPSA-N 0.000 description 1
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- 229920000742 Cotton Polymers 0.000 description 1
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- 239000005977 Ethylene Substances 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 241000277269 Oncorhynchus masou Species 0.000 description 1
- 229910019142 PO4 Inorganic materials 0.000 description 1
- 229920000297 Rayon Polymers 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- XYLMUPLGERFSHI-UHFFFAOYSA-N alpha-Methylstyrene Chemical compound CC(=C)C1=CC=CC=C1 XYLMUPLGERFSHI-UHFFFAOYSA-N 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004581 coalescence Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000005038 ethylene vinyl acetate Substances 0.000 description 1
- 229920005674 ethylene-propylene random copolymer Polymers 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 238000005984 hydrogenation reaction Methods 0.000 description 1
- 230000002209 hydrophobic effect Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000004898 kneading Methods 0.000 description 1
- 239000010985 leather Substances 0.000 description 1
- 229920000092 linear low density polyethylene Polymers 0.000 description 1
- 239000004707 linear low-density polyethylene Substances 0.000 description 1
- 230000002175 menstrual effect Effects 0.000 description 1
- 230000027939 micturition Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000010452 phosphate Substances 0.000 description 1
- PMJHHCWVYXUKFD-UHFFFAOYSA-N piperylene Natural products CC=CC=C PMJHHCWVYXUKFD-UHFFFAOYSA-N 0.000 description 1
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 1
- 229920005629 polypropylene homopolymer Polymers 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000002964 rayon Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000007665 sagging Methods 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は、不織イ１１のバインダーとして使用される熱
融着性に１■れたポリオレフィン系樹脂を士体とする熱
融着性繊維に関する。Detailed Description of the Invention (Industrial Field of Application) The present invention relates to a heat-fusible fiber whose body is a polyolefin resin with a high heat-fusible property, which is used as a binder for non-woven fabrics. Regarding.
（従来技術とその問題点）
近年、マスク、あるいは紙おむつ、経血用ナプキンなど
の爾（オ用表皮材として、ポリプロピレン系繊維を主材
繊維として、これに熱融着性繊維を適宜混繊し、しかる
後熱風あるいはエンボスローラによってこれらの繊維を
熱融孔した不織布が使用されている。(Prior art and its problems) In recent years, polypropylene fibers are used as the main fiber and heat-fusible fibers are appropriately mixed with this as a skin material for masks, disposable diapers, menstrual napkins, etc. Then, a nonwoven fabric is used in which these fibers are heated and pores are fused with hot air or an embossing roller.
この種の不織布の熱融着性繊維としては、化学的接着剤
を使用していないことから皮）２！？障害などの危惧が
なく衛生的であること、排尿などによって濡れても表面
材は吸収しないためサラッとした感じが保持できる疎水
性があること、価格が比較的低部で、かつ安定している
ことなど、は陸上および経済上の理由からポリオレフィ
ン系樹脂が採用され、その使用量も女性の社会進出、生
活様式の変化、１３よび社会の高齢化などを背景としで
使い捨ておむつの分野でＤ速に増大じでいる。This kind of non-woven heat-fusible fibers do not use chemical adhesives, so leather) 2! ? It is hygienic with no risk of injury, it has hydrophobic properties that allow it to maintain a dry feel as the surface material does not absorb even if it gets wet due to urination, etc., and it is relatively inexpensive and stable. For example, polyolefin resins have been adopted for terrestrial and economic reasons, and the amount of polyolefin resins used has also increased in the field of disposable diapers due to factors such as women's social advancement, changes in lifestyles, and the aging of society. It continues to grow.
従来、この神の不織布は、熱融ｒ１性電層１としては、
ククティシティの低いポリプロピレン、エチレン−プロ
ピレン・コポリマーあるいはポリエステルとポリプロピ
レンを混合して軟化点を降下けしめた単一成分系のもの
、あるいは高融点側にポリプロピレンを主成分とげろら
のを使用し、低融点側に高密度ポリエチレン、低密度ポ
リエチレン、直鎖状低密度ポリエチレン、エチレン酢酸
ビニル等を使用して、これらを鞘芯型あるいは貼り合せ
型に配した複合系のものが提供されているが、以下に述
べる点で問題があった。Conventionally, this divine nonwoven fabric has been used as the heat-melting R1 conductive layer 1.
Polypropylene with a low melting point, ethylene-propylene copolymer, or a single-component type that lowers the softening point by mixing polyester and polypropylene, or polypropylene as a main component on the high melting point side, and Composite systems are available in which high-density polyethylene, low-density polyethylene, linear low-density polyethylene, ethylene vinyl acetate, etc. are used on the melting point side, and these are arranged in a sheath-core type or bonded type. There were problems in the following points.
すなわち、熱融着性繊維の利用に際しては、不織布製造
工程において融着条件の幅の広さ、つまり余り厳密な温
度管理を要せず、かつ、融着強力の高いものが要請され
るが、従来の熱融着性繊維では１〜２℃という狭い範囲
での温度管理や、不織布の強力を高めるため、主材繊維
に対する熱融着性繊維の混合比率を増加したり、全体の
目付けを向上することを余儀なくされている。このため
外気温の変動などによって品質が不安定となったり、融
着強力を満足するために目付けが高くなってコスト的に
採算が悪化するなどの点で問題があった。In other words, when using heat-fusible fibers, a wide range of fusing conditions is required in the nonwoven fabric manufacturing process, that is, one that does not require very strict temperature control and has high fusing strength. With conventional heat-fusible fibers, the temperature can be controlled within a narrow range of 1 to 2 degrees Celsius, and in order to increase the strength of nonwoven fabrics, the mixing ratio of heat-fusible fibers to the main fibers has been increased, and the overall basis weight has been improved. are forced to. For this reason, there are problems in that the quality becomes unstable due to fluctuations in outside temperature, etc., and the basis weight becomes high in order to satisfy the strength of the fusion bond, making it unprofitable in terms of cost.
これらの問題点の解決方法として、複合繊維系において
低融点成分を変性して、融着強力を上げる方法も提案さ
れているが、原料調整のための変性工程が付加されるし
、その効果も充分でなかった。As a solution to these problems, a method has been proposed in which the low-melting point components of the composite fiber system are modified to increase the fusion strength, but this requires an additional modification step to adjust the raw material, and its effectiveness is also limited. It wasn't enough.
このような従来技術の問題点を解決するために、本発明
者らは、特別に原料調整のための工程を付加することな
く、不織布製造工程において融着条件の範囲が広く、か
つ高い融着強力の得られる熱融着性繊維を鋭怠研究して
本発明に到達した。In order to solve the problems of the prior art, the present inventors have developed a technology that allows for a wide range of fusion conditions and high fusion in the nonwoven fabric manufacturing process without adding a special process for raw material preparation. The present invention was arrived at through intensive research into heat-fusible fibers that can provide strength.
（問題点を解決するための手段）
上記の目的を達成するための本発明の構成は、ポリオレ
フィン系樹脂に石油樹脂を１〜２０徂吊％添加して得ら
れる組成物単独、若しくはその組成物を並列型、鞘芯型
構造の複合繊維の少なくとも一成分として用いたポリオ
レフィン系繊維よりなる。(Means for Solving the Problems) The constitution of the present invention for achieving the above object is a composition obtained by adding petroleum resin in an amount of 1 to 20% to a polyolefin resin, or a composition thereof. It consists of polyolefin fibers using as at least one component of composite fibers with a parallel type, sheath-core type structure.
本発明においてポリオレフィン系樹脂とは、結晶性ポリ
プロピレン、エチレン−プロピレン・コポリマー、ある
いはポリエチレンとこれらの混合物などを指称し、これ
に石油資源を原料とする脂肪族系、あるいは芳香族系の
石油樹脂、例えばイソプレン、シクロペンタジェン、１
，３−ペンタジェン、１−ペンテン、２−ペンテン、ジ
シクロペンタジェン等が主体のｍ合体若しくは共重合体
であるＣ５系脂肪族石油樹脂または、インデン、スチレ
ン、メチルインデン、α−メチルスチレン等が主体の重
合体若しくは共重合体であるＣ８〜Ｃ１０系芳香族石油
樹脂等から選択して、これを前記ポリオレフィン系樹脂
に対して１〜２０重準％の比率で添加混合したものを主
原料とするもので、さらにこれらに目的に応じて、各種
安定剤、春色剤などを添加してもよい。石油樹脂の添加
りは１〜２０重量％であって、１重句％未満では充分な
効果が１！７られず、また２１重量％以上では！ｌ帷の
紡糸性が低下して安定した操業ができない。In the present invention, the polyolefin resin refers to crystalline polypropylene, ethylene-propylene copolymer, or polyethylene and a mixture thereof, in addition to which aliphatic or aromatic petroleum resins made from petroleum resources, For example, isoprene, cyclopentadiene, 1
, 3-pentadiene, 1-pentene, 2-pentene, dicyclopentadiene, etc., or a C5 aliphatic petroleum resin which is an m-copolymer or copolymer mainly composed of indene, styrene, methylindene, α-methylstyrene, etc. The main raw material is a polymer or copolymer selected from C8 to C10 aromatic petroleum resins, etc., which is added and mixed to the polyolefin resin at a ratio of 1 to 20% by weight. Depending on the purpose, various stabilizers, spring coloring agents, etc. may be added to these. The amount of petroleum resin added is 1 to 20% by weight, and if it is less than 1% by weight, sufficient effects will not be obtained, and if it is more than 21% by weight! Stable operation is not possible due to poor spinning performance.
なお、添加する石油樹脂の軟化点は、７０〜１５０”Ｃ
であることが望ましい。軟化点が７０℃以下になると耐
熱性が悪くなり、また融着効率も上がらない。The softening point of the petroleum resin to be added is 70 to 150"C.
It is desirable that If the softening point is below 70°C, heat resistance will deteriorate and fusion efficiency will not increase.
一方、これが１５０℃以上になると、流動活性化エネル
ギーが大きくなるため、同様に融４効率が上がらない。On the other hand, if this temperature exceeds 150° C., the flow activation energy increases, so that the fusion efficiency similarly does not increase.
また、画材用繊維のようにＩｌ帷に着色すると好ましく
ない場合には、水素添加して脱色した石油樹脂を用いる
ことが望ましい。Further, in cases where it is not preferable to color the material in a uniform manner, such as in the case of fibers for art materials, it is desirable to use a petroleum resin that has been decolorized by hydrogenation.
この場合、水素を添加したことで紡糸性、融着性には何
ら影響はない。In this case, the addition of hydrogen has no effect on spinnability or fusion properties.
本発明の繊維は、上記の原料組成のものを、単−成分系
の繊維あるいは２成分を貼り合せた形態の並列型の一成
分、若しくは芯側に高融点成分、精側に低融点成分を配
した鞘芯型の一成分として紡糸し、これを延伸、熱処理
して得られるものであって、複合型の繊維において各々
の二成分間の融点の差が２０℃以上あることが望ましい
。The fibers of the present invention may have the above raw material composition, be single-component fibers, or be single-component parallel-type fibers in which two components are bonded together, or have a high melting point component on the core side and a low melting point component on the core side. The composite fiber is obtained by spinning it as one component of a sheath-core type, drawing it, and heat-treating it, and it is desirable that the difference in melting point between the two components in the composite type fiber is 20° C. or more.
（実施例） 以下、この発明の好洛な実施例について説明する。(Example) Preferred embodiments of this invention will be described below.
［実施例１〜４］
素練りローラーにて高密度ポリエチレン（Ｍｌ＝２０＞
７０部に、Ｃ８〜ＣＩＯ系芳香族石油樹脂としてＣ９ア
ルギルベンゼンを主成分とする脂環族石油樹脂（荒用化
学（株）製 アルコンＤ−１Ｃ０、軟化点１００℃、分
子量７００）３０部を添加し均一に練った後、ペレター
ザーにてペレット化し、石油樹脂のマスターバッチを作
成する。[Examples 1 to 4] High density polyethylene (Ml=20>
70 parts, 30 parts of alicyclic petroleum resin (manufactured by Arayo Kagaku Co., Ltd., Alcon D-1C0, softening point 100°C, molecular weight 700) containing C9 argylbenzene as a main component as a C8 to CIO aromatic petroleum resin. After adding and kneading it uniformly, it is pelletized using a pelletizer to create a petroleum resin masterbatch.
−軸押出機２台と、ホール径０．６＃の複合繊維用ノズ
ルからなる鞘芯型複合繊維紡糸設備を使い、芯成分とし
て結晶性ポリプロピレン（ＭＩ＝１５）を、鞘成分は高
密度ポリエチレン（ＭＩ＝２０）をベースに、前記マス
ターバッチを添加して石ｉ１１］樹脂量が各々１．５．
１０．２０市洛％となるように配合して、紡糸温度２５
０℃、引取速度８００ ｍ／ｍｉｎで紡糸し、単糸デニ
ール６、○ｄａの稍芯型複合楳帷を（ｑた。なお、鞘成
分と芯成分の断面積比率は１：１としたが、いずれも紡
糸性が優れ、１時間の間紡糸切れは１回も発生しなかっ
た。-Using a sheath-core type composite fiber spinning equipment consisting of two axial extruders and a composite fiber nozzle with a hole diameter of 0.6 #, the core component is crystalline polypropylene (MI=15), and the sheath component is high-density polyethylene. (MI=20), the masterbatch was added and the resin amount was 1.5.
10. Blend so that it is 20% and spin at a spinning temperature of 25%.
The fibers were spun at 0°C and a take-up speed of 800 m/min to produce a fine-core composite cardstock with a single yarn denier of 6 and ○ da.The cross-sectional area ratio of the sheath component and core component was 1:1 Both had excellent spinnability, and no breakage occurred even once during one hour.
このマルチフィラメントを３００本集めトータルデニー
ルを約４０万とし、ステーアルファイバー試作設備にて
延伸、オイリング、捲縮加工、カット、乾燥、熱処理を
行ない、単糸デニール２ ｄｅ。300 of these multifilaments were collected to have a total denier of approximately 400,000 yen, and were drawn, oiled, crimped, cut, dried, and heat treated using a Staal fiber prototype facility to create a single yarn with a denier of 2 de.
カット長５１＃、捲縮敢１５個／１ｎＣｈのステーブル
フッ・イバーをＩｙ７た。なお熱処理は１００℃の熱風
にて１０分間行なった。オイルはアルキルフォスフェー
ト系で０．３０部付着させた。このようにして１りられ
た単繊維の特性を表１に示す。A stable hook with a cut length of 51# and 15 crimps/1nCh was used for Iy7. The heat treatment was performed using hot air at 100° C. for 10 minutes. The oil was an alkyl phosphate type oil and was deposited at 0.30 parts. Table 1 shows the properties of the single fibers thus obtained.
このステープルフ７・イバーを３５０ ｍｍ巾のサンプ
ルカード機に２回通し目付２０９／況の均一なウェブを
作成した。この時のカード特性も表１に示しているが、
いずれもカード通過性が良くなっている。このウェブを
シール面積８％、シール接圧５ Ｋ９ ／ ｃｍ 、シ
ール速度３ｍ／ｍｉｎのエンボス０−ルにて、表面温度
を１１７．５℃から１３０℃まで変えてポイン）〜シー
ル融着不織イ５を作った。This staple fiber 7-Ivar was passed through a 350 mm wide sample card machine twice to create a uniform web with a fabric weight of 209 mm. The card characteristics at this time are also shown in Table 1,
Both have improved card passing performance. This web was embossed with a sealing area of 8%, a seal contact pressure of 5 K9/cm, and a sealing speed of 3 m/min, and the surface temperature was varied from 117.5°C to 130°C. I made i5.
なお、表面温度が１３５°Ｃ以上では溶融過剰となりフ
ィルムライクになると同時に収縮ら大きくなった。In addition, when the surface temperature was 135° C. or higher, excessive melting resulted in a film-like appearance and, at the same time, increased shrinkage.
他方、巾３５０ ｍｍ巾、速ａ５ｍ／ｍｉｎの金網ベル
１−にウェブを載往、熱；面温度を１３２．５〜１４５
°Ｃまで変え、風速２ＴｒＬ／秒の熱風を５秒間吹きト
１けて、熱風融着不織布も作成した。なお、この場合に
は熱風温度が１５０℃以上では不織布は溶融過剰となり
、収縮も著しく大きくなった。On the other hand, the web was loaded onto a wire mesh bell 1- with a width of 350 mm and a speed of 5 m/min, and the surface temperature was set to 132.5 to 145.
A hot air fused nonwoven fabric was also prepared by blowing hot air at a speed of 2 TrL/sec for 5 seconds. In this case, when the hot air temperature was 150° C. or higher, the nonwoven fabric became excessively melted and the shrinkage increased significantly.
熱風融着にて作成された不織布の裂所長、嵩高性を調べ
たところ（表１１図１〜４参照）、いずれも融着強力が
高く、且つ広い温度範囲でにれだ融着強力を持った不織
布が背られた。従って、従来のような厳密な温度設定や
管理が不要となり、外気温等が多少変化しても品質の安
定したものが得られ、また生産速度や目付等も幅広く変
えられ、しかも、兵高性が優れ、紙おむつの要求性能の
一つである触感の良いものが得られた。この傾向は表１
ないしは第１図〜第４図からも明らかなように熱風融着
不織布に、より顕著に現われる。When we investigated the fissure length and bulkiness of nonwoven fabrics created by hot air fusion (see Table 11, Figures 1 to 4), we found that they all had high fusion strength and sag fusion strength over a wide temperature range. The non-woven fabric was turned away. Therefore, there is no need for strict temperature setting and control as in the past, and products with stable quality can be obtained even if the outside temperature changes slightly. Production speed and area weight can also be changed over a wide range. The product had excellent texture and had a good feel, which is one of the required performances for disposable diapers. This trend is shown in Table 1
As is clear from FIGS. 1 to 4, it appears more prominently in the hot-air fused nonwoven fabric.
［比較例１〜３］
実施例１〜４と同じ方法にて、鞘成分として高密度ポリ
エチレン単独及び脂環族石油樹脂（洗用化学（株）製ア
ルコンρ−１００）を、それぞれ０．０．５．２５重量
％添加した高密度ポリエチレンを使い、組成原料比率の
異なる３種類の鞘芯型複合繊維を紡糸した。その結束、
比較例１，２はいずれも紡糸＋！１が良く、１時間の紡
糸中で紡糸切れは１回も発生しなかったが、比較例３は
１時間に５〜７回紡糸切れが発生し、安定した紡糸が出
来なかった。[Comparative Examples 1 to 3] Using the same method as Examples 1 to 4, high density polyethylene alone and alicyclic petroleum resin (Alcon ρ-100 manufactured by Senyou Kagaku Co., Ltd.) were used as sheath components at a concentration of 0.0, respectively. Using high-density polyethylene containing 5.25% by weight, three types of sheath-core type composite fibers having different raw material ratios were spun. Its unity,
Comparative Examples 1 and 2 are both spinning +! 1 was good, and no spinning breakage occurred even once during spinning for 1 hour, but in Comparative Example 3, spinning breakage occurred 5 to 7 times in 1 hour, and stable spinning was not possible.
さらに、比較例１．２について、カード特性。Furthermore, regarding Comparative Example 1.2, card characteristics.
不織布特性を調べたところ、ＫＬ第１図〜第４図に示す
ようにいずれも実施例に比しカード通過性が劣り、熱融
着強度、高嵩性も劣っていた。また融着強度の温度依存
性が大きく、融着温度により融４強力及び触感が左右さ
れる。すなわち、融着温度が低いと融着強力が弱く、逆
に融着温度か高いと固くなり触感（風合）が劣ってくる
。When the properties of the nonwoven fabrics were examined, as shown in KL Figs. 1 to 4, all of them were inferior in card passage performance, thermal bonding strength, and bulkiness compared to the examples. Furthermore, the temperature dependence of the fusion strength is large, and the fusion strength and tactile feel are influenced by the fusion temperature. That is, if the fusion temperature is low, the strength of the fusion bond will be weak, and conversely, if the fusion temperature is high, it will become hard and the texture will be poor.
［実施例５〜７］
実施例１〜４と同一方法にて芯成分として結晶性ポリプ
ロピレン（宇部興産（株）Ｊ１３０Ｇ）を鞘成分は高密
度ポリエチレンく旭化成〈株）装Ｊ３１０）にＣ５系脂
肪族石油（′＋１脂として、イソプレン系重合体（実施
例５、日本ゼオン（株）袈フィントンＡ−１００、軟１
ヒ点１００’Ｃ）、また、同じ重合体く実７１１例６、
四本ビＪン（株）製りイントンＣ−１００、軟化点９５
°Ｃ）、高級炭化水素石油樹脂（実施例７、三井石油化
学（株）製ＦＴ Ｒ−６１００、軟化点９７℃）を各々
５％重予添加した鞘芯型複合繊維を作成し、紡糸性、カ
ード特性、不織布特性を調べたところいずれも表２に示
すように優れた結果が１ｑられた。[Examples 5 to 7] Using the same method as in Examples 1 to 4, the core component was crystalline polypropylene (J130G, manufactured by Ube Industries, Ltd.), and the sheath component was high-density polyethylene (J310, manufactured by Asahi Kasei Corporation) and C5 fat. Isoprene-based polymer (Example 5, Nippon Zeon Co., Ltd. Kema Finton A-100, Soft 1)
hit point 100'C), and the same polymer fruit 711 example 6,
Inton C-100 manufactured by Yotsubon Bin J Co., Ltd., softening point 95
°C) and a high-grade hydrocarbon petroleum resin (Example 7, Mitsui Petrochemical Co., Ltd. FT R-6100, softening point 97 °C) were each added in a sheath-core type composite fiber in an amount of 5%, and spinnability was determined. When the properties of the card, card properties, and nonwoven fabric properties were investigated, excellent results were obtained in all cases as shown in Table 2.
［実施例８］
実施例１〜４と同一方法にて芯成分に結晶性ポリプロピ
レン（宇部興産（株）製、Ｊ１３０Ｇ＞、鞘成分には芳
香族石油樹脂（洗用化学（株）製アルコンｐ−１２５、
分子２８２０、軟化点１２５℃）を５重量％添加した無
水マイレン酸変性高密度ポリエチレン（日本石油化学（
株）製、Ｎポリマー８０７９２）を使い、鞘芯型複合繊
維を紡糸した。その結果、紡糸性、カード特性、不織布
特性を調べたところ表３に示すようにいずれも優れた結
果が１ｑられた。[Example 8] Using the same method as in Examples 1 to 4, crystalline polypropylene (manufactured by Ube Industries, Ltd., J130G) was used as the core component, and aromatic petroleum resin (Alcon P, manufactured by Senyo Kagaku Co., Ltd.) was used as the sheath component. -125,
Maleic anhydride-modified high-density polyethylene (Japan Petrochemical Co., Ltd.
A sheath-core composite fiber was spun using N Polymer 80792 (manufactured by Co., Ltd.). As a result, the spinnability, card properties, and nonwoven fabric properties were investigated, and as shown in Table 3, excellent results were obtained in all 1q.
［実施例９］
一軸押出礪とホール径０．５ｍｍの単−系［用ノズルか
らなる紡糸設備を用い、エチレンプロピレンランダム共
重合体（宇部興産（株）製エチレン含晶２％ Ｍ ［＝
’３０’）とポリプロピレンホモポリマー（宇部興産（
株）製Ｍ Ｉ ＝ ３０ ＞とを１：１でブレンドし、
これに芳香族脂肪族共手合体（東邦石油樹脂（株）製ト
ーホー・ハイレジン＃９０、軟化点９５℃）を３重ζ％
添加した樹脂から単一系熱融着性繊維を作成した。単一
系熱融着性繊維は熱風融るすると熱収縮のために、均一
な不織布が得られないので、ポイントシール融Ｚ１不織
布にて不織布特性を調べた。なお、このときのエンボス
ロールの表面温度は１３７．５℃〜１４５℃にてポイン
トシールした。その結果芳香族脂肪俗共重合体石油樹脂
の入っていない比較！！Ａ４に比し、カード特性、不織
布特性は表３に示すように浸れていた。[Example 9] Ethylene propylene random copolymer (manufactured by Ube Industries, Ltd., ethylene crystal-containing 2% M [=
'30') and polypropylene homopolymer (Ube Industries (Ube Industries)
Co., Ltd. M I = 30> and blended at a ratio of 1:1,
To this, triple ζ% of aromatic aliphatic covalent coalescence (Toho Hi-Resin #90 manufactured by Toho Oil Resin Co., Ltd., softening point 95°C) was added.
A single type heat-fusible fiber was created from the added resin. When a single type heat-fusible fiber is melted by hot air, it shrinks due to heat shrinkage and a uniform non-woven fabric cannot be obtained. Therefore, the non-woven fabric properties were investigated using a point seal fused Z1 non-woven fabric. Note that point sealing was performed at a surface temperature of the embossing roll at this time of 137.5°C to 145°C. The result is a comparison of aromatic aliphatic copolymers that do not contain petroleum resins! ! Compared to A4, the card properties and nonwoven fabric properties were improved as shown in Table 3.
［実施例１０へ・１２コ
実施例２で１９られた熱融着性繊維に単糸デニール ２
ｄｅ、カットに５１＋＋ｍのポリプロピレン（レギュ
ラー）ｕＡ維、ポリエステル繊維、レーヨン繊維を各々
５０％混謀し、３５０ｍｍ巾のサンプルカード礪に３回
通し、均一に混合した目付２０ｇ／尻のウェアを作成し
た。このウェアについて実施例１〜４と同一方法にて不
織布特性を調べたところ、石油樹脂無添加の熱融着性繊
維に各種！！帷を各々５０％混綿した比較例５〜７に比
し、表４に示すようにいずれら浸れていた。[Go to Example 10/12 Single yarn denier 2 to the heat-fusible fiber made in Example 2
50% each of 51++m polypropylene (regular) uA fibers, polyester fibers, and rayon fibers were mixed into the cut and passed through a 350mm wide sample card 3 times to create a uniformly mixed garment with a fabric weight of 20g/butt. . When we investigated the nonwoven fabric properties of this wear using the same method as in Examples 1 to 4, we found that it was a heat-fusible fiber with no petroleum resin added. ! Compared to Comparative Examples 5 to 7, in which each cloth was mixed with 50% cotton, all of the cloths were soaked as shown in Table 4.
［実施例１３］
実施例１〜４と同一方法にて鞘成分にて、芳香族石油樹
脂（洗用化学（株）製アルコンｐ−９０、分子ｆｆ１６
３０、軟化点９０℃）を８重量％添加した低密度ポリエ
チレン（宇部興産（株）製Ｊ２５２２）を使い、鞘芯型
複合繊維を２４０°Ｃにて紡糸した。その結果、紡糸性
は全く問題なかった。[Example 13] Aromatic petroleum resin (Alcon p-90 manufactured by Senyo Kagaku Co., Ltd., molecular ff16) was used as the sheath component in the same manner as in Examples 1 to 4.
A sheath-core type composite fiber was spun at 240°C using low density polyethylene (J2522, manufactured by Ube Industries, Ltd.) to which 8% by weight of A.30 (softening point: 90°C) was added. As a result, there was no problem with spinnability.
また、カード特性、不織？′ｌｉ特性は芳香ｂＸ石油Ｉ
＋ｌｉ４指の入っていない比較例８と比べ嶋れていた。Also, card characteristics, non-woven? 'li characteristics are aromatic bX petroleum I
Compared to Comparative Example 8, which did not contain +li4 fingers, it was more sagging.
なお、不織布作成時のエンボスロール表面温度は１００
〜１２０℃又熱風温度は１１０℃〜１３０℃で行なった
。In addition, the surface temperature of the embossing roll when creating the nonwoven fabric was 100
The hot air temperature was 110 to 130°C.
［実施例１４．１５１
実施例１〜４と同一方法にて芯成分に芳香族石油樹脂（
洗用化学（株）袈アルコンｐ−１２５）を５用量％添加
した結晶性ポリプロピレン（宇部興産（株）製Ｊ１１５
９）、鞘成分には高密度ポリエチレン（旭化成（株）製
サンチックＪ３１０）単独、又、芳香族石油樹脂（洗用
化学（株）製アルコンＤ−１２５）を５重量％添加した
高密度ポリエチレン（旭化成（株）製サンチックＪ３１
０）を使い、鞘芯型複合繊維を２５０’Ｃにて紡糸した
。[Example 14.151 Aromatic petroleum resin (
Crystalline polypropylene (J115, manufactured by Ube Industries, Ltd.) to which 5% dosage of Senyo Kagaku Co., Ltd., Kei Alcon P-125) was added.
9) As the sheath component, high-density polyethylene (Santic J310 manufactured by Asahi Kasei Corporation) alone or high-density polyethylene to which 5% by weight of aromatic petroleum resin (Alcon D-125 manufactured by Senyo Kagaku Co., Ltd.) was added ( Santic J31 manufactured by Asahi Kasei Corporation
A sheath-core type composite fiber was spun at 250'C using 0).
その結果、紡糸性は全く問題なかった。不織布強力は芳
香族石油樹脂の入っていない比較例９に比べ、いずれも
優れた結果が得られた。これは鞘成分と芯成分の接着力
が増加した為と考えられる。As a result, there was no problem with spinnability. In terms of the strength of the nonwoven fabric, superior results were obtained in all cases compared to Comparative Example 9, which did not contain aromatic petroleum resin. This is considered to be due to an increase in the adhesive strength between the sheath component and the core component.
比較例９の引張試験後の不織イ［Ｊの破断部分を電子顕
微鏡にて観察すると、熱融、と繊維が融着しているとこ
ろは、謀維内の鞘成分と芯成分の界面での剥離が観察さ
れる。並列型はさらにこの傾向が強い。When the fractured part of the nonwoven A [J] was observed under an electron microscope after the tensile test in Comparative Example 9, it was found that the area where the fibers were fused was at the interface between the sheath component and the core component within the fiber. Peeling is observed. This tendency is even stronger for parallel types.
そこで、鞘成分と芯成分の接石力を測定するために、ホ
ール径０．７ｍの並列型複合域帷用ノズルを用い、２５
０℃にて、単糸デニール杓４５０ｄｅ（約φ０．２６Ｍ
）の太い並列型複合繊維を紡糸し、両成分の剥離試験を
行なった。剥離引張速度は４０ｍ／分にて測定し、得ら
れた値を接触幅で除した値を剥離強力（ｇ／馴）とした
。この結末、芯成分に芳香族石油樹脂を添加したものは
、添加しないものに比較して剥離強力が大ぎく、鞘成分
と芯成分の両方に添加したちのはさらに大ぎな値を示す
。従って鞘成分と芯成分の接着力増加が不織布強力に寄
与しているものと思われる。Therefore, in order to measure the contact force of the sheath component and the core component, we used a parallel type compound zone nozzle with a hole diameter of 0.7 m, and
At 0℃, single thread denier ladle 450 de (about φ0.26 M
) thick parallel composite fibers were spun and a peel test was conducted on both components. The peeling tensile speed was measured at 40 m/min, and the value obtained by dividing the obtained value by the contact width was defined as the peel strength (g/tension). As a result, those in which aromatic petroleum resin is added to the core component have greater peeling strength than those without the addition, and those in which aromatic petroleum resin is added to both the sheath and core components exhibit even greater strength. Therefore, it seems that the increase in adhesive strength between the sheath component and the core component contributes to the strength of the nonwoven fabric.
なお、各実施例ないしは比較例中の評価方法は次の通り
である。The evaluation method in each example or comparative example is as follows.
：ｌ： Ｖｊ糸性；１時間当たりの紡糸切断回数が１回
以下のものを良、２〜１２回のものを不良、１３回以上
のものを不可とした。:l: Vj Yarn properties: Those with 1 or less spinning breaks per hour were rated good, those with 2 to 12 breaks were rated poor, and those with 13 or more breaks were rated poor.
＊＠繊維特性；ＪＩＳ Ｌ１０１５化学繊維ステープ
ルの試験方法に準じ測定をした。*@Fiber properties; Measured according to JIS L1015 chemical fiber staple test method.
■引張破断強伸度及び見掛ヤング率；つかみ間隙２０酬
、引張速度２０±１繭／ ｍｉｎにて引張り、試料が切
断した時の荷重、及び荷車−伸長曲線の原点近くでの伸
長変化に対する荷重変化から算出する。なお試験回数は
３０回とした。■Tensile strength at break, elongation and apparent Young's modulus; tensioned at a gripping gap of 20, tension speed of 20±1 cocoon/min, load when the sample is cut, and elongation change near the origin of the cart-elongation curve. Calculated from load changes. The number of tests was 30 times.
■捲縮数、捲縮率及び捲縮弾性率；捲縮数は試料に２ｍ
３／デニールの初荷重をかけたときの捲縮数を数え、２
５＃間当たりの捲縮数を求める。試験回数は２０回とし
、その平均値で表示した。実施例、比較例では数はいず
れも１５ケとなるようにした。捲縮率及び捲縮弾性率は
、試料に２ｍ９／デニールの初荷重をかけた時の長さく
ａ＞と、これに５０ｒｎｇ／デニールの初荷重をかけた
時の長さ（ｂ）を測定し、次に全何重を除き、２分間放
首後、２ ｍＦＩ ／デニールの初荷重をかけて長さく
Ｃ）を読み、次式により求めた。なお、試験回数（，１
２０回とし、その平均１直で表わした。■Number of crimp, crimp ratio and crimp elastic modulus; The number of crimp is 2m on the sample.
3/Count the number of crimp when applying the initial load of denier,
5 Find the number of crimps per #. The number of tests was 20, and the average value was displayed. In both Examples and Comparative Examples, the number was 15. The crimp ratio and crimp elastic modulus are determined by measuring the length (a) when an initial load of 2 m9/denier is applied to the sample and the length (b) when an initial load of 50 rng/denier is applied to the sample. Then, after removing all the weights and leaving the head open for 2 minutes, an initial load of 2 mFI/denier was applied, and the length C) was read, and the length C) was determined using the following formula. In addition, the number of tests (,1
20 times, expressed as an average of 1 shift.
−ａ
捲縮率（％） ＝ −ｘ １００
−Ｃ
捲縮弾性率（％） ＝ −ｘ １００
−ａ
＊カード特性：ザンブルカードはにて１００ｇ／尻のウ
ェアを作成し、これをランダムカード機に通し、出て来
たウェブを５分後、１０分後にネップ採つし、尻当たり
の目付を測定してカード通過性を求めた。またこの時の
ネップの発生状態及び均一性を観察してカード特性を調
べた。-a Crimp rate (%) = -x 100 -C Crimp modulus (%) = -x 100 -a *Card characteristics: Create a 100g/butt piece of clothing at Zumburu Card, and use it as a random card. After 5 minutes and 10 minutes, the web that came out was taken through a machine, and the fabric weight per tail was measured to determine the card passing property. In addition, the card characteristics were investigated by observing the state and uniformity of nep formation at this time.
：ｌ： Ｔ ｉ イロ特性；サンプルカード機を２回通
して、目付２０７／況の均一なウェアを作成し、エンボ
スローラーによるポイントシール融着不織布と、熱風吹
付けによる熱風融着不織布とを作り、熱融着強力と窩高
性を調べた。:l: T i Iro Characteristics: Run the sample card machine twice to create a uniform garment with a basis weight of 207/cm, and then make a point seal fused nonwoven fabric with an embossing roller and a hot air fused nonwoven fabric with hot air blowing. The strength of thermal fusion and the height of the cavity were investigated.
■熱融着強力；ＪＩＳ Ｌ−１０６８の引張試験方誌
に準じ、熱融着加工した不織イｌｉから、機械方向２０
Ｏｍｍ Ｘ幅方向５０卿及び線繊方向５０ ｍｍ Ｘ
幅方向２００ ｍｍの試験片をそれぞれ５枚採取し、つ
かみ間隙を１００ ｍｍ 、引張速度を毎分３０±２ｃ
ｍとして、償緘方向（ＭＤ）及び礪械方向に対し垂直方
向（ＴＯ）の引張切断強力を測った。■Strong heat-sealing; According to JIS L-1068 tensile test method, heat-sealed non-woven fabric with 20% strength in the machine direction.
Omm
Five specimens each measuring 200 mm in the width direction were taken, the gripping gap was 100 mm, and the tensile speed was 30 ± 2 c/min.
The tensile cutting strength in the direction of reduction (MD) and in the direction perpendicular to the direction of reduction (TO) was measured as m.
■裂断長；不織布の目付の因子を加味して次式により裂
断長を求め比較した。すなわち、この裂断長は不織布を
吊り下げた時、山手で切断する長さに相当する。■Tearing length: The tearing length was determined and compared using the following formula, taking into consideration the factor of the basis weight of the nonwoven fabric. In other words, this tearing length corresponds to the length of the nonwoven fabric that is cut at the top when it is suspended.
熱融着強力（ｇ）
裂断長（ｍ）＝
日付（！Ｊ／１ｒｔ）Ｘ試料幅（０，０５０７１ｉＬ）
■嵩高性：５０ｍＸ５０ｍｍの試験片を１０枚重ね、そ
の上に６．５ｇ（０，２６ｇ／ゴ）の荷重を全面に均一
にかりた状態で、５分１すに全体の厚みを測り、嵩密度
から高高性を調べた。Heat fusion strength (g) Breaking length (m) = Date (!J/1rt) x sample width (0,05071iL)
■ Bulkyness: Stack 10 test pieces of 50m x 50mm, apply a load of 6.5g (0.26g/g) uniformly over the entire surface, and measure the overall thickness at 1/5 inch. High quality was investigated based on density.
＊軟化点：ＪＩＳ２２０７に関じた環球法により測定し
た。*Softening point: Measured by the ring and ball method according to JIS2207.
（作用効果）
以上、各種の実施例で説明したように、本発明の繊維を
使用することによって、不織布の強力が向上できるのは
、Ｃ５系脂肪族石油樹脂あるいはＣ８〜Ｃ１０系芳香族
石油樹脂を添加することによって、不織布加工のため加
熱されている段階では、これらの成分のために、２Ｍ＝
Ｎ表面が粘着性を有した状態となって接触している繊維
相互間が、この粘着力による接合も付加された状態で溶
融接着しているので、従来、熱により一時間に融着して
いても走行あるいは降温時には剥離していたと思われる
現象が抑制できるためと考えられる。(Function and Effect) As explained above in various examples, the strength of the nonwoven fabric can be improved by using the fibers of the present invention. By adding 2M=
The fibers that are in contact with each other with their N surfaces in a sticky state are melted and bonded with the addition of bonding due to this adhesive force. This is thought to be due to the fact that the phenomenon that would otherwise occur during driving or when the temperature drops can be suppressed.
本発明のポリオレフィン系繊維は以上詳細に説明したよ
うに高い融着強力を有する不織布に適しているので、需
要の増大が期待されている使い捨ておむつの表皮材や、
各種衛生材用不織布などとして好適である。As explained in detail above, the polyolefin fiber of the present invention is suitable for non-woven fabrics with high fusion strength, so it can be used as a surface material for disposable diapers, for which demand is expected to increase.
It is suitable as a nonwoven fabric for various sanitary materials.
第１図から第４図は表１に示した本発明の実施例の裂断
長を図示したグラフである。
３（舛
詳＠イ1 to 4 are graphs illustrating the breaking lengths of the embodiments of the present invention shown in Table 1. 3 (Masu detail @i
Claims (2)
％添加して得られる組成物単独若しくはその組成物を並
列型、鞘芯型構造の複合繊維の少なくとも一成分として
用いたことを特徴とするポリオレフィン系熱融着性繊維
。(1) A composition obtained by adding 1 to 20% by weight of petroleum resin to a polyolefin resin or a composition thereof is used as at least one component of a composite fiber having a parallel type or sheath-core type structure. Polyolefin heat-fusible fiber.
であることを特徴とする特許請求の範囲第１項記載のポ
リオレフィン系熱融着性繊維。(2) The polyolefin heat-fusible fiber according to claim 1, wherein the difference in melting point between each component of the composite fiber is 20°C or more.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61101059A JPS62263321A (en) | 1986-05-02 | 1986-05-02 | Polyolefin based heat fusible fiber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61101059A JPS62263321A (en) | 1986-05-02 | 1986-05-02 | Polyolefin based heat fusible fiber |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62263321A true JPS62263321A (en) | 1987-11-16 |
| JPH028048B2 JPH028048B2 (en) | 1990-02-22 |
Family
ID=14290540
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61101059A Granted JPS62263321A (en) | 1986-05-02 | 1986-05-02 | Polyolefin based heat fusible fiber |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62263321A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0253914A (en) * | 1988-08-11 | 1990-02-22 | Kuraray Co Ltd | Hot-melt type adhesive fiber |
| WO1999046435A1 (en) * | 1998-03-11 | 1999-09-16 | The Dow Chemical Company | Fibers made from alpha-olefin/vinyl or vinylidene aromatic and/or hindered cycloaliphatic or aliphatic vinyl or vinylidene interpolymers |
| WO2023286853A1 (en) * | 2021-07-15 | 2023-01-19 | 興和株式会社 | Nonwoven fabrics and mask |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5870547B2 (en) * | 2011-08-24 | 2016-03-01 | 日本ポリプロ株式会社 | Propylene resin composition used for melt spinning type electrospinning and melt spinning method of ultrafine fiber using the same |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS53147816A (en) * | 1977-05-24 | 1978-12-22 | Chisso Corp | Hot-melt fiber of polypropylene |
-
1986
- 1986-05-02 JP JP61101059A patent/JPS62263321A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS53147816A (en) * | 1977-05-24 | 1978-12-22 | Chisso Corp | Hot-melt fiber of polypropylene |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0253914A (en) * | 1988-08-11 | 1990-02-22 | Kuraray Co Ltd | Hot-melt type adhesive fiber |
| WO1999046435A1 (en) * | 1998-03-11 | 1999-09-16 | The Dow Chemical Company | Fibers made from alpha-olefin/vinyl or vinylidene aromatic and/or hindered cycloaliphatic or aliphatic vinyl or vinylidene interpolymers |
| WO2023286853A1 (en) * | 2021-07-15 | 2023-01-19 | 興和株式会社 | Nonwoven fabrics and mask |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH028048B2 (en) | 1990-02-22 |
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