JP2018035456A - Method of manufacturing reinforcing material made of fabric - Google Patents
Method of manufacturing reinforcing material made of fabric Download PDFInfo
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- JP2018035456A JP2018035456A JP2016167546A JP2016167546A JP2018035456A JP 2018035456 A JP2018035456 A JP 2018035456A JP 2016167546 A JP2016167546 A JP 2016167546A JP 2016167546 A JP2016167546 A JP 2016167546A JP 2018035456 A JP2018035456 A JP 2018035456A
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- fabric
- multifilament yarn
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- 239000004744 fabric Substances 0.000 title claims abstract description 40
- 239000012779 reinforcing material Substances 0.000 title claims abstract description 18
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 11
- 239000000306 component Substances 0.000 claims abstract description 40
- 239000000835 fiber Substances 0.000 claims abstract description 31
- 239000008358 core component Substances 0.000 claims abstract description 29
- 229920000098 polyolefin Polymers 0.000 claims abstract description 19
- 238000000034 method Methods 0.000 claims abstract description 14
- 238000002074 melt spinning Methods 0.000 claims abstract description 12
- 239000004952 Polyamide Substances 0.000 claims abstract description 10
- 238000010438 heat treatment Methods 0.000 claims abstract description 10
- 229920002647 polyamide Polymers 0.000 claims abstract description 10
- 238000001816 cooling Methods 0.000 claims abstract description 8
- 229920001903 high density polyethylene Polymers 0.000 claims abstract description 6
- 239000004700 high-density polyethylene Substances 0.000 claims abstract description 6
- 239000002131 composite material Substances 0.000 claims description 36
- 238000002844 melting Methods 0.000 claims description 14
- 230000008018 melting Effects 0.000 claims description 12
- 239000002759 woven fabric Substances 0.000 claims description 5
- 238000009941 weaving Methods 0.000 claims description 3
- 239000011347 resin Substances 0.000 abstract description 19
- 229920005989 resin Polymers 0.000 abstract description 19
- 239000000155 melt Substances 0.000 description 10
- -1 polyethylene Polymers 0.000 description 8
- 229920000642 polymer Polymers 0.000 description 7
- 239000004698 Polyethylene Substances 0.000 description 5
- 238000009940 knitting Methods 0.000 description 5
- 229920000573 polyethylene Polymers 0.000 description 5
- 230000000052 comparative effect Effects 0.000 description 4
- 230000003287 optical effect Effects 0.000 description 4
- 239000004743 Polypropylene Substances 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 3
- 229920001155 polypropylene Polymers 0.000 description 3
- 238000005507 spraying Methods 0.000 description 3
- 238000004804 winding Methods 0.000 description 3
- 229920002292 Nylon 6 Polymers 0.000 description 2
- OFOBLEOULBTSOW-UHFFFAOYSA-N Propanedioic acid Natural products OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 description 2
- 239000000470 constituent Substances 0.000 description 2
- VZCYOOQTPOCHFL-UPHRSURJSA-N maleic acid Chemical compound OC(=O)\C=C/C(O)=O VZCYOOQTPOCHFL-UPHRSURJSA-N 0.000 description 2
- 239000011976 maleic acid Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 0.000 description 2
- 229920002302 Nylon 6,6 Polymers 0.000 description 1
- 239000004372 Polyvinyl alcohol Substances 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 229920001684 low density polyethylene Polymers 0.000 description 1
- 239000004702 low-density polyethylene Substances 0.000 description 1
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920001955 polyphenylene ether Polymers 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 229920002451 polyvinyl alcohol Polymers 0.000 description 1
- 238000009987 spinning Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Landscapes
- Multicomponent Fibers (AREA)
- Woven Fabrics (AREA)
Abstract
Description
本発明は、種々の材料を補強するための布帛製補強材の製造方法に関し、特に樹脂製容器の壁に接着させて容器を補強するのに用いる布帛製補強材の製造方法に関するものである。 The present invention relates to a method for manufacturing a fabric reinforcement for reinforcing various materials, and more particularly to a method for manufacturing a fabric reinforcement used to reinforce a container by bonding it to a wall of a resin container.
従来より、樹脂製容器の壁の外側又は内側に布帛を接着させたり、壁中に布帛を挿入したりして、容器を補強することが行われている。そして、布帛としては、織物、編物又は多軸シート等が用いられている。かかる布帛製補強材としては、芯鞘型複合繊維よりなる糸を構成糸とするものが用いられている。芯鞘型複合繊維は、芯成分が高融点重合体よりなり、鞘成分が低融点重合体よりなるものである。そして、鞘成分のみを軟化又は溶融させて、樹脂製容器の壁に融着することができるので、布帛製補強材の構成繊維として用いられている。 Conventionally, a fabric is reinforced by adhering a fabric to the outside or inside of a wall of a resin container or inserting a fabric into the wall. As the fabric, a woven fabric, a knitted fabric, a multiaxial sheet or the like is used. As such a fabric reinforcing material, a thread made of a core-sheath composite fiber is used. In the core-sheath type composite fiber, the core component is made of a high melting point polymer, and the sheath component is made of a low melting point polymer. And since only a sheath component can be softened or melted and fused to the wall of a resin container, it is used as a constituent fiber of a fabric reinforcing material.
布帛製補強材に用いられる芯鞘型複合繊維の芯成分としては、ポリアミド、ポリエステル、ポリオレフィン、ポリウレタン、ポリカーボネート、アクリル、ポリフェニレンエーテル及びポリビニルアルコール等の高融点重合体が用いられており、鞘成分としては、ポリエチレン、ポリプロピレン及びエチレン−プロピレン系共重合体等の低融点重合体が用いられている（特許文献１、請求項１〜３）。すなわち、芯成分として高融点重合体であれば種々の重合体を用いることができ、鞘成分として樹脂となじみが良く接着性にすぐれたオレフィン系重合体を用いることが知られている。 High-melting polymers such as polyamide, polyester, polyolefin, polyurethane, polycarbonate, acrylic, polyphenylene ether, and polyvinyl alcohol are used as the core component of the core-sheath type composite fiber used for the fabric reinforcing material. Are low-melting polymers such as polyethylene, polypropylene, and ethylene-propylene copolymers (Patent Document 1, Claims 1 to 3). That is, it is known that various polymers can be used as a core component as long as it is a high melting point polymer, and that an olefin polymer having good adhesion to a resin and excellent adhesiveness is used as a sheath component.
しかしながら、補強材の構成繊維として用いられる芯鞘型複合繊維は、その強度及び伸度が高いことが求められる。特に、樹脂製容器の壁に接着させた後に繊維形態を維持して残存している芯成分には、高い強度と伸度が求められる。繊維の強度及び伸度を高めるには、繊維に延伸処理を施せばよい。しかるに、芯鞘型複合繊維の場合、延伸処理を施すと、芯成分と鞘成分とが剥離し、芯鞘型複合繊維よりなる糸を用いて製織又は製編等をする際に、鞘成分が脱離したり切断されたりして、布帛中に鞘成分を均一に存在させにくくなるという欠点があった。また、芯成分と鞘成分が剥離した芯鞘型複合繊維を容器等の壁に接着しても、強固な接着を実現できないという欠点があった。 However, the core-sheath type composite fiber used as the constituent fiber of the reinforcing material is required to have high strength and elongation. In particular, high strength and elongation are required for the core component remaining in the fiber form after being adhered to the wall of the resin container. In order to increase the strength and elongation of the fiber, the fiber may be stretched. However, in the case of a core-sheath type composite fiber, the core component and the sheath component are peeled off when subjected to stretching treatment, and the sheath component is used when weaving or knitting using a yarn made of the core-sheath type composite fiber. There is a drawback that it is difficult to make the sheath component uniformly exist in the fabric by being detached or cut. In addition, there is a drawback that even if the core-sheath type composite fiber from which the core component and the sheath component are separated is bonded to the wall of a container or the like, strong bonding cannot be realized.
本発明の課題は、芯鞘型複合繊維に延伸処理を施しても、芯成分と鞘成分とが剥離しにくく、織物中に均一に鞘成分が存在すると共に容器等の壁に強固に接着しうる布帛製補強材を製造する方法を提供することにある。 The problem of the present invention is that even if the core-sheath composite fiber is subjected to a stretching treatment, the core component and the sheath component are difficult to peel off, and the sheath component is uniformly present in the fabric and is firmly adhered to the wall of a container or the like. An object of the present invention is to provide a method for producing a fabric reinforcing material.
本発明は、芯成分と鞘成分に特定の重合体を使用すると共に特定の処理を施すことにより、上記課題を解決したものである。すなわち、本発明は、芯成分がポリアミドよりなり、鞘成分がマレイン酸変性ポリオレフィンよりなる芯鞘型複合繊維よりなるマルチフィラメント糸を複合溶融紡糸法によって製造する工程と、前記マルチフィラメント糸を冷却した後に、加熱下で延伸処理を施して、延伸マルチフィラメント糸を製造する工程と、前記延伸マルチフィラメント糸を用いて布帛を得る工程とよりなる布帛製補強材の製造方法に関するものである。 This invention solves the said subject by using a specific polymer for a core component and a sheath component, and giving a specific process. That is, the present invention includes a step of producing a multifilament yarn made of a core-sheath type composite fiber having a core component made of polyamide and a sheath component made of maleic acid-modified polyolefin by a composite melt spinning method, and cooling the multifilament yarn. The present invention relates to a method for producing a fabric reinforcing material, which comprises a step of producing a drawn multifilament yarn by performing a drawing treatment under heating and a step of obtaining a fabric using the drawn multifilament yarn.
まず、芯成分となるポリアミドを準備する。ポリアミドとしては、ナイロン６やナイロン６６等を用いることができる。ポリアミドの融点は、種類によって異なるが、概ね１７０℃〜２７０℃である。芯成分をポリアミドとすることにより、耐薬品性や耐衝撃性にすぐれると共に、延伸処理により高強度及び高伸度の芯成分となる。また、鞘成分となるマレイン酸変性ポリオレフィンを準備する。マレイン酸変性ポリオレフィンとは、ポリオレフィンの側鎖にマレイン酸（無水マレイン酸を含む）を付加させたものである。マレイン酸変性ポリオレフィンとしては、マレイン酸変性ポリエチレンやマレイン酸変性ポリプロピレンを用いることができる。マレイン酸変性ポリオレフィンの融点も、種類によって異なるが、概ね１１０〜１６０℃であり、ポリアミドの融点よりも低融点となっている。鞘成分をマレイン酸変性ポリオレフィンとすることにより、被着物との相溶性が向上し、接着性が良好となる。 First, a polyamide as a core component is prepared. As the polyamide, nylon 6, nylon 66, or the like can be used. The melting point of polyamide varies depending on the type, but is generally 170 ° C to 270 ° C. By using polyamide as the core component, it is excellent in chemical resistance and impact resistance, and becomes a core component having high strength and high elongation by stretching treatment. Moreover, the maleic acid modified polyolefin used as a sheath component is prepared. The maleic acid-modified polyolefin is obtained by adding maleic acid (including maleic anhydride) to the side chain of the polyolefin. As the maleic acid-modified polyolefin, maleic acid-modified polyethylene or maleic acid-modified polypropylene can be used. The melting point of the maleic acid-modified polyolefin also varies depending on the type, but is generally 110 to 160 ° C., which is lower than the melting point of polyamide. By using maleic acid-modified polyolefin as the sheath component, compatibility with the adherend is improved and adhesion is improved.
鞘成分であるマレイン酸変性ポリオレフィンに、変性されていないポリオレフィンを添加してもよい。かかるポリオレフィンとしては、高密度ポリエチレン、低密度ポリエチレン又はポリプロピレンを用いることができる。変性されていないポリオレフィンの添加量は、マレイン酸変性ポリオレフィン１００重量部に対して５０〜１５０質量部程度である。変性されていないポリオレフィンを添加する理由は、鞘成分に二つの融点を持たせて融着性を向上させるためである。また、鞘成分のメルトフローレートを調整して、複合溶融紡糸しやすくするためである。 An unmodified polyolefin may be added to the maleic acid-modified polyolefin which is a sheath component. As such polyolefin, high density polyethylene, low density polyethylene or polypropylene can be used. The addition amount of the unmodified polyolefin is about 50 to 150 parts by mass with respect to 100 parts by weight of the maleic acid-modified polyolefin. The reason for adding unmodified polyolefin is to improve the fusing property by giving the sheath component two melting points. In addition, the melt flow rate of the sheath component is adjusted to facilitate complex melt spinning.
芯成分と鞘成分とを、複合溶融紡糸孔を複数備えた紡糸装置に、溶融状態で導入し、加熱された複合溶融紡糸孔より芯成分と鞘成分を吐出する方法（すなわち、複合溶融紡糸法）によって、芯鞘型複合繊維を得る。各複合溶融紡糸孔より得られた各芯鞘型複合繊維を引き揃えることにより、マルチフィラメント糸を得る。芯成分と鞘成分とを複合溶融紡糸孔より連続して吐出し、芯成分を鞘成分によって良好に被覆するには、芯成分と鞘成分のメルトフローレートを一定の範囲に調整するのが好ましい。具体的には、芯成分のメルトフローレートを５〜４０ｇ／１０分の範囲内にし、鞘成分のメルトフローレートを１５〜６５ｇ／１０分の範囲内にするのがよい。特に、この範囲内で、鞘成分のメルトフローレートを芯成分のメルトフローレートよりも高くし、鞘成分の流動性を高めておくのが好ましい。なお、このメルトフローレートは、複合溶融紡糸する際の温度に近似する温度である２７０℃で、荷重２．１６ｋｇで測定したものである。 A method in which a core component and a sheath component are introduced into a spinning apparatus having a plurality of composite melt spinning holes in a molten state, and the core component and sheath component are discharged from the heated composite melt spinning holes (that is, a composite melt spinning method) ) To obtain a core-sheath type composite fiber. A multifilament yarn is obtained by aligning each core-sheath type composite fiber obtained from each composite melt spinning hole. In order to continuously discharge the core component and the sheath component from the composite melt spinning hole and to satisfactorily cover the core component with the sheath component, it is preferable to adjust the melt flow rate of the core component and the sheath component within a certain range. . Specifically, the melt flow rate of the core component is preferably in the range of 5 to 40 g / 10 minutes, and the melt flow rate of the sheath component is preferably in the range of 15 to 65 g / 10 minutes. In particular, within this range, it is preferable that the melt flow rate of the sheath component is higher than the melt flow rate of the core component to improve the fluidity of the sheath component. This melt flow rate was measured at 270 ° C., which is a temperature approximate to the temperature at the time of composite melt spinning, with a load of 2.16 kg.
得られたマルチフィラメント糸は冷却され、巻き取られる。また、冷却した後に、マルチフィラメント糸に油剤を付与してもよい。油剤を付与することにより、巻き取り性、巻き戻し性及び製織性又は製編製等を向上させることができる。冷却後に、マルチフィラメント糸を加熱下で延伸して、延伸マルチフィラメント糸を得る。加熱方法としては、マルチフィラメント糸に過熱水蒸気を吹き付ける方法や熱風を吹き付ける方法等が挙げられる。加熱温度は、芯成分の結晶化を促進させる温度が好ましく、１００〜２００℃程度である。もちろん、過熱水蒸気や熱風をマルチフィラメント糸に吹き付けても、ただちにマルチフィラメント糸の温度が過熱水蒸気や熱風の温度にはならないので、過熱水蒸気や熱風は２００℃以上の温度のものを吹き付けるのが好ましい。延伸は、二つの一対のローラー間で行われる。たとえば、１００℃程度に加熱された一対の第一ローラー間にマルチフィラメント糸を導入した後、このマルチフィラメント糸を第一ローラーよりも回転速度の速い加熱された一対の第二ローラー間に導入することにより行われる。第一ローラーと第二ローラーに回転速度差を設けることにより、任意の倍率で延伸することができる。たとえば、第一ローラーの回転速度をＸｒｐｍの場合、第二ローラーの回転速度を２Ｘｒｐｍにすると、２倍の延伸倍率で延伸されることになる。本発明では、延伸倍率は、３〜７倍であるのが好ましく、特に４〜６倍であるのが最も好ましい。 The resulting multifilament yarn is cooled and wound up. Further, after cooling, an oil agent may be applied to the multifilament yarn. By applying the oil agent, the winding property, rewinding property, weaving property, knitting, and the like can be improved. After cooling, the multifilament yarn is drawn under heating to obtain a drawn multifilament yarn. Examples of the heating method include a method of spraying superheated steam on the multifilament yarn and a method of spraying hot air. The heating temperature is preferably a temperature that promotes crystallization of the core component, and is about 100 to 200 ° C. Of course, even when superheated steam or hot air is blown onto the multifilament yarn, the temperature of the multifilament yarn does not immediately become the temperature of the superheated steam or hot air. . Stretching is performed between two pairs of rollers. For example, after introducing a multifilament yarn between a pair of first rollers heated to about 100 ° C., the multifilament yarn is introduced between a pair of heated second rollers having a rotational speed faster than that of the first roller. Is done. By providing a difference in rotational speed between the first roller and the second roller, stretching can be performed at an arbitrary magnification. For example, when the rotation speed of the first roller is X rpm, when the rotation speed of the second roller is 2 X rpm, the film is stretched at a draw ratio of 2 times. In the present invention, the draw ratio is preferably 3 to 7 times, and most preferably 4 to 6 times.
得られた延伸マルチフィラメント糸は、芯鞘型複合繊維の繊度が５〜１０デシテックス程度で、芯鞘型複合繊維の本数は１００〜３００本程度である。したがって、延伸マルチフィラメント糸の総繊度は、５００〜３０００デシテックス程度である。この延伸マルチフィラメント糸を用いて布帛を得る。具体的には、延伸マルチフィラメント糸を経糸及び緯糸に用い、製織して織物を得る。織物の組織は、平織組織、綾織組織又は朱子織組織等の従来公知の組織を採用すればよい。また、延伸マルチフィラメント糸を用いて緯編又は経編で製編して、編物を得る。編物の組織も、平編組織、パール編組織又はトリコット編組織等の従来公知の組織を採用すればよい。さらに、延伸マルチフィラメント糸を経方向、斜め方向又は緯方向に並べた層を積層し、各層間を接着してなる多軸シートを得る。これらの布帛を構成する糸が芯鞘型複合繊維よりなっているので、鞘成分のみを軟化又は溶融させて、各糸間を融着させて、目づれが生じにくいようにしておいてもよい。もちろん、各糸を構成している芯鞘型複合繊維同士も融着させて、布帛に剛性を付与しておいてもよい。 The obtained drawn multifilament yarn has a core-sheath composite fiber having a fineness of about 5 to 10 dtex, and the number of core-sheath composite fibers is about 100 to 300. Therefore, the total fineness of the drawn multifilament yarn is about 500 to 3000 dtex. A fabric is obtained using the drawn multifilament yarn. Specifically, stretched multifilament yarn is used for warp and weft and woven to obtain a woven fabric. A conventionally known structure such as a plain weave structure, a twill weave structure or a satin weave structure may be adopted as the structure of the woven fabric. Further, a knitted fabric is obtained by knitting with weft knitting or warp knitting using drawn multifilament yarn. As the knitted fabric structure, a conventionally known structure such as a flat knitted structure, a pearl knitted structure or a tricot knitted structure may be adopted. Further, a multiaxial sheet formed by laminating layers in which stretched multifilament yarns are arranged in the warp direction, the oblique direction, or the weft direction and bonding the respective layers is obtained. Since the yarns constituting these fabrics are made of core-sheath type composite fibers, only the sheath component may be softened or melted so that the yarns are fused together so that the yarns are not easily noticed. . Of course, the core-sheath type composite fibers constituting each yarn may be fused together to impart rigidity to the fabric.
以上の方法で得られた布帛は、各種材料の補強材として用いられる。たとえば、樹脂製容器の壁の表面に張設して、加熱加圧し、芯鞘型複合繊維の鞘成分のみを軟化又は溶融させて接着して、樹脂製容器の壁を補強することができる。 The fabric obtained by the above method is used as a reinforcing material for various materials. For example, it is possible to reinforce the wall of the resin container by stretching it on the surface of the wall of the resin container, heating and pressurizing, and softening or melting only the sheath component of the core-sheath composite fiber.
本発明に係る方法で得られた布帛製補強材は、それを構成している芯鞘型複合繊維の芯成分と鞘成分とが剥離しておらず、鞘成分が均一に補強材中に存在する。したがって、この布帛製補強材は、樹脂製容器の壁等に強固に接着されるため、補強効果に優れるという効果を奏する。 The fabric reinforcing material obtained by the method according to the present invention is such that the core component and the sheath component of the core-sheath composite fiber constituting the same are not peeled off, and the sheath component is uniformly present in the reinforcing material. To do. Therefore, since this fabric reinforcing material is firmly bonded to the wall of the resin container or the like, there is an effect that the reinforcing effect is excellent.
実施例１
芯成分として、融点が２２５℃でメルトフローレートが１０．６ｇ／１０分のナイロン６を準備した。鞘成分として、以下の混合樹脂を準備した。すなわち、融点が１３１℃でメルトフローレートが５５．８ｇ／１０分の高密度ポリエチレン４０重量部と、融点が１２２℃でメルトフローレートが２５．９ｇ／１０分のマレイン酸変性ポリエチレン６０重量部を均一に混合した混合樹脂を準備した。そして、複合溶融紡糸装置に、孔径０．５ｍｍで孔数１９２個の芯鞘型複合紡糸口金を装着し、口金温度２６５℃で芯成分：鞘成分＝２：１（重量比）となるように両者を供給し、１９２本の芯鞘型複合繊維を紡出した。その後、紡糸口金直下に設けた温度３００℃で長さ２０ｃｍの加熱筒内を通過させ、続いて、横型冷却装置を用いて、温度１６℃で速度が０．８ｍ／秒の冷風を吹き付けて、芯鞘型複合繊維を冷却した。冷却後、油剤を芯鞘型複合繊維表面に付与し、１９２本の芯鞘型複合繊維が引き揃えられたマルチフィラメント糸を巻取ローラーで巻き取った。
Example 1
As a core component, nylon 6 having a melting point of 225 ° C. and a melt flow rate of 10.6 g / 10 min was prepared. The following mixed resin was prepared as a sheath component. That is, 40 parts by weight of high-density polyethylene having a melting point of 131 ° C. and a melt flow rate of 55.8 g / 10 min, and 60 parts by weight of maleic acid-modified polyethylene having a melting point of 122 ° C. and a melt flow rate of 25.9 g / 10 min. A mixed resin that was uniformly mixed was prepared. Then, a core-sheath type composite spinneret having a hole diameter of 0.5 mm and 192 holes is attached to the composite melt spinning apparatus so that the core component: sheath component = 2: 1 (weight ratio) at a base temperature of 265 ° C. Both were supplied and 192 core-sheath type composite fibers were spun. Then, it was passed through a heating cylinder of 20 cm in length at a temperature of 300 ° C. provided immediately below the spinneret. Subsequently, using a horizontal cooling device, cold air at a temperature of 16 ° C. and a speed of 0.8 m / second was blown, The core-sheath type composite fiber was cooled. After cooling, an oil agent was applied to the surface of the core-sheath composite fiber, and the multifilament yarn in which 192 core-sheath composite fibers were aligned was wound up by a winding roller.
巻取ローラーからマルチフィラメント糸を巻き戻して、一対の１００℃に加熱された第一ローラーに導入した後、さらに一対の１１０℃に加熱された第二ローラーに導入した。第一ローラーと第二ローラーの間で、スチーム処理機を用いて、温度３００℃で圧力０．３ＭＰａの過熱水蒸気をマルチフィラメント糸に吹き付けながら、延伸倍率４．８倍で延伸した。延伸後に、常法で弛緩処理及びリラックス処理を行い、１６７０デシテックス／１９２フィラメントの延伸マルチフィラメント糸を得た。 The multifilament yarn was unwound from the winding roller and introduced into a pair of first rollers heated to 100 ° C, and then introduced into a pair of second rollers heated to 110 ° C. Between the first roller and the second roller, stretching was performed at a draw ratio of 4.8 times while spraying superheated steam at a temperature of 300 ° C. and a pressure of 0.3 MPa onto the multifilament yarn using a steam processor. After drawing, relaxation treatment and relaxation treatment were performed by a conventional method to obtain a drawn multifilament yarn of 1670 dtex / 192 filaments.
実施例２
混合樹脂の混合割合を、高密度ポリエチレン３０重量部とマレイン酸変性ポリエチレン７０重量部とする他は、実施例１と同一の方法で延伸マルチフィラメント糸を得た。
Example 2
A drawn multifilament yarn was obtained in the same manner as in Example 1 except that the mixing ratio of the mixed resin was 30 parts by weight of high-density polyethylene and 70 parts by weight of maleic acid-modified polyethylene.
実施例３
混合樹脂に代えて、マレイン酸変性ポリエチレン１００重量部を用いる他は、実施例１と同一の方法で延伸マルチフィラメント糸を得た。
Example 3
A drawn multifilament yarn was obtained in the same manner as in Example 1 except that 100 parts by weight of maleic acid-modified polyethylene was used instead of the mixed resin.
比較例１
混合樹脂に代えて、高密度ポリエチレン１００重量部を用いる他は、実施例１と同一の方法で延伸マルチフィラメント糸を得た。
Comparative Example 1
A drawn multifilament yarn was obtained in the same manner as in Example 1 except that 100 parts by weight of high-density polyethylene was used instead of the mixed resin.
実施例１で得られた延伸マルチフィラメント糸の横断面を光学顕微鏡で観察したときの写真を図１に示し、比較例１で得られた延伸マルチフィラメント糸の横断面を光学顕微鏡で観察したときの写真を図２に示した。図１と図２を対比すれば明らかなように、実施例１で得られた延伸マルチフィラメント糸を構成する芯鞘型複合繊維は、芯成分と鞘成分が殆ど剥離していないのに対して、比較例１で得られた芯鞘型複合繊維は、芯成分と鞘成分との剥離が顕著である。 A photograph of the cross section of the drawn multifilament yarn obtained in Example 1 observed with an optical microscope is shown in FIG. 1, and the cross section of the drawn multifilament yarn obtained in Comparative Example 1 is observed with an optical microscope. The photograph of is shown in FIG. As apparent from the comparison between FIG. 1 and FIG. 2, the core-sheath type composite fiber constituting the stretched multifilament yarn obtained in Example 1 has almost no peeling between the core component and the sheath component. In the core-sheath type composite fiber obtained in Comparative Example 1, peeling between the core component and the sheath component is remarkable.
実施例で得られた延伸マルチフィラメント糸を経糸及び緯糸に用いて平織織物を製織し、これを樹脂製容器の壁に加熱加圧して接着させたところ、織物は強固に樹脂製容器の壁に接着し、補強材として好適に使用しうるものであった。 A plain woven fabric was woven using the drawn multifilament yarns obtained in the examples as warps and wefts, and this was heated and pressed to the wall of the resin container to bond the fabric firmly to the wall of the resin container. It adhered and could be used suitably as a reinforcing material.
Claims (5)
前記マルチフィラメント糸を冷却した後に、加熱下で延伸処理を施して、延伸マルチフィラメント糸を製造する工程と、
前記延伸マルチフィラメント糸を用いて布帛を得る工程とよりなる布帛製補強材の製造方法。 A step of producing a multifilament yarn comprising a core-sheath type composite fiber comprising a polyamide core component and a sheath component comprising maleic acid-modified polyolefin by a composite melt spinning method;
A step of producing a stretched multifilament yarn by cooling the multifilament yarn and then subjecting it to a stretching treatment under heating;
A method for producing a fabric reinforcing material, comprising a step of obtaining a fabric using the drawn multifilament yarn.
前記マルチフィラメント糸を冷却した後に、加熱下で延伸処理を施して、延伸マルチフィラメント糸を製造する工程とよりなる布帛製補強材に用いる延伸マルチフィラメント糸の製造方法。 A step of producing a multifilament yarn comprising a core-sheath type composite fiber comprising a polyamide core component and a sheath component comprising maleic acid-modified polyolefin by a composite melt spinning method;
A method for producing a stretched multifilament yarn used for a fabric reinforcing material, comprising: a step of producing a stretched multifilament yarn by cooling the multifilament yarn and then performing a stretching treatment under heating.
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| JPH0192415A (en) * | 1987-10-02 | 1989-04-11 | Unitika Ltd | Heat-bondable fiber and nonwoven fabric thereof |
| JP2003193332A (en) * | 2001-10-17 | 2003-07-09 | Bridgestone Corp | Sheath-core conjugate fiber and elastomer/fiber composite material |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JPH0192415A (en) * | 1987-10-02 | 1989-04-11 | Unitika Ltd | Heat-bondable fiber and nonwoven fabric thereof |
| JP2003193332A (en) * | 2001-10-17 | 2003-07-09 | Bridgestone Corp | Sheath-core conjugate fiber and elastomer/fiber composite material |
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