WO2019181737A1 - Method for thermoforming textile product - Google Patents

Method for thermoforming textile product Download PDF

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Publication number
WO2019181737A1
WO2019181737A1 PCT/JP2019/010604 JP2019010604W WO2019181737A1 WO 2019181737 A1 WO2019181737 A1 WO 2019181737A1 JP 2019010604 W JP2019010604 W JP 2019010604W WO 2019181737 A1 WO2019181737 A1 WO 2019181737A1
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WO
WIPO (PCT)
Prior art keywords
sheath
core
polyethylene
component
fiber
Prior art date
Application number
PCT/JP2019/010604
Other languages
French (fr)
Japanese (ja)
Inventor
弘平 池田
真理子 本多
Original Assignee
ユニチカ株式会社
弘平 池田
真理子 本多
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from JP2018167031A external-priority patent/JP6604583B2/en
Application filed by ユニチカ株式会社, 弘平 池田, 真理子 本多 filed Critical ユニチカ株式会社
Priority to AU2019238661A priority Critical patent/AU2019238661A1/en
Priority to KR1020207026411A priority patent/KR102389445B1/en
Priority to EP19772558.3A priority patent/EP3770313A4/en
Priority to US16/981,592 priority patent/US20210054537A1/en
Priority to CA3093528A priority patent/CA3093528A1/en
Publication of WO2019181737A1 publication Critical patent/WO2019181737A1/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
    • B29C70/06—Fibrous reinforcements only
    • B29C70/10—Fibrous reinforcements only characterised by the structure of fibrous reinforcements, e.g. hollow fibres
    • B29C70/16—Fibrous reinforcements only characterised by the structure of fibrous reinforcements, e.g. hollow fibres using fibres of substantial or continuous length
    • B29C70/20—Fibrous reinforcements only characterised by the structure of fibrous reinforcements, e.g. hollow fibres using fibres of substantial or continuous length oriented in a single direction, e.g. roofing or other parallel fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
    • B32B5/024—Woven fabric
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
    • B32B5/08—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer the fibres or filaments of a layer being of different substances, e.g. conjugate fibres, mixture of different fibres
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D5/00—Formation of filaments, threads, or the like
    • D01D5/08—Melt spinning methods
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D5/00—Formation of filaments, threads, or the like
    • D01D5/28—Formation of filaments, threads, or the like while mixing different spinning solutions or melts during the spinning operation; Spinnerette packs therefor
    • D01D5/30—Conjugate filaments; Spinnerette packs therefor
    • D01D5/34—Core-skin structure; Spinnerette packs therefor
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F8/00—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof
    • D01F8/04—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers
    • D01F8/06—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers with at least one polyolefin as constituent
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F8/00—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof
    • D01F8/04—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers
    • D01F8/14—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers with at least one polyester as constituent
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D1/00—Woven fabrics designed to make specified articles
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D15/00—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
    • D03D15/20—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the material of the fibres or filaments constituting the yarns or threads
    • D03D15/283—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the material of the fibres or filaments constituting the yarns or threads synthetic polymer-based, e.g. polyamide or polyester fibres
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D15/00—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
    • D03D15/20—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the material of the fibres or filaments constituting the yarns or threads
    • D03D15/292—Conjugate, i.e. bi- or multicomponent, fibres or filaments
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D15/00—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
    • D03D15/40—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the structure of the yarns or threads
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D15/00—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
    • D03D15/40—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the structure of the yarns or threads
    • D03D15/41—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the structure of the yarns or threads with specific twist
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D15/00—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
    • D03D15/40—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the structure of the yarns or threads
    • D03D15/44—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the structure of the yarns or threads with specific cross-section or surface shape
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D15/00—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
    • D03D15/40—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the structure of the yarns or threads
    • D03D15/47—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the structure of the yarns or threads multicomponent, e.g. blended yarns or threads
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D15/00—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
    • D03D15/50—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the properties of the yarns or threads
    • D03D15/587—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the properties of the yarns or threads adhesive; fusible
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06C—FINISHING, DRESSING, TENTERING OR STRETCHING TEXTILE FABRICS
    • D06C7/00—Heating or cooling textile fabrics
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/12—Conjugate fibres, e.g. core/sheath or side-by-side
    • D—TEXTILES; PAPER
    • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2321/00—Fibres made from polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • D10B2321/02—Fibres made from polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds polyolefins
    • D10B2321/021—Fibres made from polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds polyolefins polyethylene
    • D—TEXTILES; PAPER
    • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2331/00—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products
    • D10B2331/04—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products polyesters, e.g. polyethylene terephthalate [PET]
    • D—TEXTILES; PAPER
    • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2505/00—Industrial
    • D10B2505/02—Reinforcing materials; Prepregs

Definitions

  • the present invention relates to a method for thermoforming by applying heat and, if necessary, pressure to a fiber product composed of multifilament yarns in which core-sheath composite long fibers are bundled, and in particular, excellent in wear resistance and other types of articles. It is related with the thermoforming method which can obtain the thermoforming body excellent in peeling strength when it is made to stick to.
  • This invention solves the said subject by employ
  • the present invention uses a composite melt spinning method in which polyethylene having a melt flow rate of 10 to 15 g / 10 min under measurement conditions of a temperature of 280 ° C. and a load of 2.16 kg is used as a sheath component, and polyethylene terephthalate is used as a core component.
  • a step of obtaining a multifilament yarn in which core-sheath composite long fibers having a mass ratio of the core component to the sheath component of core component: sheath component 1 to 4: 1 are bundled, using the multifilament yarn
  • the present invention relates to a method for thermoforming a textile product.
  • polyethylene having a melt flow rate of 10 to 15 g / 10 min under measurement conditions of a temperature of 280 ° C. and a load of 2.16 kg is prepared.
  • the polyethylene include linear high density polyethylene, linear low density polyethylene, and branched polyethylene, and the molecular weights thereof are various.
  • the present invention uses the specific polyethylene described above from among these polyethylenes. Specifically, a linear low density polyethylene having a high molecular weight is preferably used. When the melt flow rate is less than 10 g / 10 min, it becomes difficult to perform composite melt spinning with polyethylene terephthalate, which is not preferable.
  • melt flow rate exceeds 15 g / 10 min, the wear resistance of the fused part is lowered and the adhesive force to other kinds of articles is lowered, which is not preferable.
  • the melt flow rate is measured in accordance with the method described in JIS K7210 under the conditions of a temperature of 280 ° C. and a load of 2.16 kg. In the examples of the present invention, the melt flow rate was measured under the above-described conditions using a device called a melt indexer G-01 manufactured by Toyo Seiki Seisakusho.
  • polyethylene terephthalate together with the specific polyethylene mentioned above.
  • a conventionally well-known thing is used as a polyethylene terephthalate.
  • Polyethylene terephthalate does not melt at the temperature at which polyethylene melts, and maintains the original fiber form. Therefore, the melt flow rate is arbitrary because it has nothing to do with the wear resistance and adhesive strength of the fused part.
  • polyethylene as a sheath component and polyethylene terephthalate as a core component to obtain a core-sheath-type long fiber by a composite melt spinning method, it is converged to obtain a multifilament yarn.
  • the mass ratio of the sheath component is lower than this range, it is not preferable because the wear resistance and adhesive strength of the fused part are lowered.
  • the mass ratio of the sheath component is higher than this range, the diameter of the core component maintaining the original fiber form is reduced, and the tensile strength of the thermoformed product is lowered, which is not preferable.
  • the multifilament yarn may be untwisted but is generally twisted.
  • a woven fabric may be obtained by weaving multifilament yarn as warp and weft, or a knitted fabric may be obtained by applying the multifilament yarn to a warp knitting machine or a weft knitting machine.
  • a knotted network or a knotless network may be obtained while twisting a plurality of multifilament yarns.
  • a string may be obtained by assembling a plurality of multifilament yarns.
  • conventionally known fiber products are obtained by various methods.
  • the multifilament yarn is passed through the kite. Specifically, in the case of a woven fabric, a multifilament yarn that is a warp is passed through the knot, and in the case of warp knitting, the multifilament yarn that is a warp is passed through a guide eye of the knot. At this time, the multifilament yarn comes into contact with the edges of the mesh and the guide eye to cause friction, and wear occurs in the multifilament yarn.
  • the multifilament yarn used in the present invention is excellent in abrasion resistance in such a situation.
  • the sheath component of the core-sheath type composite continuous fiber constituting the multifilament yarn has a low melt flow rate, so that the sheath component contacting the edge of the eyelet or guide eye is melted or softened by frictional heat. This is because it is difficult to adhere to the edges of the eyelets and the guide eye, and the sheath component is difficult to be scraped off.
  • magnesium stearate is contained in the sheath component, the sheath component is less likely to adhere to the edges of the eyelets or guide eyes.
  • the content of magnesium stearate in the sheath component may be about 0.01 to 1% by weight.
  • the obtained fiber product is heated and thermoformed.
  • the heating temperature is equal to or higher than the melting point of polyethylene, which is the sheath component of the core-sheath composite long fiber, and specifically 140 ° C. or higher.
  • polyethylene is melted, and the core-component polyethylene terephthalate is fused with the core-sheath composite long fibers in a state in which the original fiber form is maintained, thereby obtaining a thermoformed body.
  • a coarse knitted fabric or net is used as a textile product and the knitted fabric or net is heated to melt polyethylene, a thermoformed body that is firmly fused at the intersection of the knitted fabric or net is obtained. It is done.
  • the intersection of the knitted fabric or the net is, for example, an intersection of warp and weft in the case of a woven fabric, and a knot in the case of a knitted or net.
  • a thermoformed article can be favorably used at a construction site as a mesh sheet that is not easily noticed or a peeling prevention sheet.
  • the laminated body obtained by laminating the obtained fiber products may be heated to perform thermoforming.
  • thermoforming For example, woven fabrics, woven fabrics and mesh fabrics, or knitted fabrics and mesh fabrics may be laminated and thermoformed.
  • the core-sheath type composite long fibers of the upper layer fiber product and the lower layer fiber product are fused and bonded to each other, and a composite material that is difficult to peel off on the laminated surface is obtained.
  • the sheath component of the core-sheath type composite long fiber in the fiber product is fused and bonded to another type of article.
  • Examples of other types of articles include arbitrary articles such as plastic articles, metal articles, and ceramic articles.
  • a casing formed of a polyolefin resin or the like is used as another type of article, the sheath component of the core-sheath composite long fiber and the polyolefin resin are firmly bonded, and the core component has the original fiber state. As a result, a reinforced housing is obtained.
  • thermoforming method for fiber products since core-sheath type composite long fibers having a specific polyethylene as a sheath component are present in the fiber product, the core-sheath type composite long fibers are fused together with this polyethylene. There is an effect that the wear resistance of the fused part is improved.
  • the core-sheath type composite continuous fibers fused with the polyethylene also have an effect of increasing the adhesive force. Therefore, for example, when the fiber product used in the present invention and another type of article are laminated and fused, the fiber product and the other type of article are difficult to peel off.
  • Example 1 [Preparation of multifilament yarn]
  • polyethylene manufactured by Nippon Polyethylene Co., Ltd., product number UJ960
  • polyethylene terephthalate having a melting point of 256 ° C. was prepared as a core component.
  • the above-mentioned polyethylene and polyethylene terephthalate are supplied to a compound melt spinning apparatus equipped with a core-sheath type compound spinneret having a hole diameter of 0.6 mm and 192 holes.
  • As the (mass ratio) composite melt spinning was performed.
  • the obtained filaments having 192 core-sheath composite long fibers converged were subjected to cooling, stretching and relaxation treatments by conventional means to obtain 1670 dtex / 192 filament multifilament yarns.
  • thermoformed product A in which a fusion site having a length of 200 mm was formed. This thermoformed product A is formed by fusing the sheath component of the core-sheath type composite continuous fiber in each plain fabric at the center thereof, and is obtained by firmly bonding the two plain fabrics. It was.
  • thermoforming (2) The obtained multifilament yarn was twisted with a twist number of 60 T / m and introduced into an 8-striking cord making machine to obtain an 8-piece braid. And the sheath component of the core-sheath type
  • Example 2 A multifilament yarn was obtained by the same method as in Example 1 except that polyethylene (manufactured by Prime Polymer Co., Ltd., product number SP4030) having a melting point of 127 ° C. and a melt flow rate of 14.5 g / 10 minutes was used as the sheath component. Using this multifilament yarn, fiber products were prepared and thermoformed (part 1) and (part 2) in the same manner as in Example 1 to obtain thermoformed bodies A and B.
  • polyethylene manufactured by Prime Polymer Co., Ltd., product number SP4030
  • Comparative Example 2 A multifilament yarn was obtained in the same manner as in Example 1 except that polyethylene (manufactured by Nippon Polyethylene Co., Ltd., product number UJ560) having a melting point of 123 ° C. and a melt flow rate of 59.8 g / 10 minutes was used as the sheath component. Using this multifilament yarn, fiber products were prepared and thermoformed (part 1) and (part 2) in the same manner as in Example 1 to obtain thermoformed bodies A and B.
  • polyethylene manufactured by Nippon Polyethylene Co., Ltd., product number UJ560
  • thermoformed body A obtained in Examples 1 and 2 and Comparative Examples 1 and 2 using the autograph AG50kNI manufactured by Shimadzu Corporation, each plain fabric part not bonded at one end of the width of the thermoformed body A was gripped with a chuck, a peel test was performed at a tensile speed of 100 mm / min, and the peel strength was measured. The peel test was conducted on three thermoformed bodies A, and the peel strength was defined as an average value of each value at which the load exhibited a maximum value during the test. As a result, the thermoformed product A according to Example 1 is 17.8 N, the one according to Example 2 is 15.7 N, the one according to Comparative Example 1 is 10.1 N, and the one according to Comparative Example 2 is 13.1 N. there were. From this, it turns out that the thermoformed body A which concerns on Example 1 and 2 is excellent in the adhesive force of two plain fabrics.
  • thermoformed product B according to Examples 1 and 2 did not break, but the thermoformed product B according to Comparative Example 1 was about 15%. It broke in minutes.
  • thermoformed body B which concerns on the comparative example 2 was not fractured
  • the above-mentioned polyethylene composition and polyethylene terephthalate are supplied to a compound melt spinning apparatus equipped with a core-sheath type compound spinneret having a hole diameter of 0.6 mm and a number of holes of 128, and the die temperature is set to 280 ° C.
  • the obtained filaments with 128 core-sheath composite long fibers bundled were subjected to cooling, drawing and relaxation treatments by conventional means to obtain 1830 dtex / 128 filament multifilament yarns.

Abstract

[Problem] To provide a thermoforming method for obtaining a thermoformed article that exhibits an excellent wear resistance at melt-bonded portions, and an excellent adhesive strength between fabrics and to other kinds of articles. [Solution] A polyethylene terephthalate and a polyethylene having a melt flow rate, measured under conditions of a temperature of 280°C and a load of 2.16 kg, of 10 to 15 g/10 min are prepared. By a conjugate melt spinning method using the polyethylene terephthalate as a core component and the polyethylene as a sheath component, a multifilament yarn in which core-sheath conjugate long fibers having a core component : sheath component mass ratio of 1 to 4 : 1 are collected is obtained. A textile product is obtained by weaving, knitting, braiding, or winding using the multifilament yarn. Thermoforming of this textile product is carried out by heating the textile product to melt the polyethylene and simultaneously to melt-bond the core-sheath conjugate long fibers each other, with the polyethylene terephthalate retaining its initial fiber form.

Description

繊維製品の熱成形法Textile thermoforming method
　本発明は、芯鞘型複合長繊維が集束されてなるマルチフィラメント糸よりなる繊維製品に、熱及び必要により圧を与えて熱成形する方法に関し、特に、耐摩耗性に優れ、また他種物品に貼着させたときの剥離強力に優れた熱成形体を得ることのできる熱成形法に関するものである。 The present invention relates to a method for thermoforming by applying heat and, if necessary, pressure to a fiber product composed of multifilament yarns in which core-sheath composite long fibers are bundled, and in particular, excellent in wear resistance and other types of articles. It is related with the thermoforming method which can obtain the thermoforming body excellent in peeling strength when it is made to stick to.
　従来より、芯成分がポリエチレンテレフタレートで鞘成分がポリエチレンよりなる芯鞘型複合長繊維が集束されてなるマルチフィラメント糸を用いて、織物や網地等の繊維製品を得ることは知られている。また、かかる繊維製品をメッシュシート等に用いることが知られている。メッシュシートの場合には、織物や網地に目づれが生じないように、これらを熱成形して、芯鞘型複合長繊維の鞘成分であるポリエチレンを軟化又は溶融させ、織物や網地の交点を融着することも知られている。これらの事項は特許文献１に記載されている。 Conventionally, it has been known to obtain a textile product such as a woven fabric or a net using a multifilament yarn in which core-sheath composite long fibers having a core component of polyethylene terephthalate and a sheath component of polyethylene are bundled. It is also known to use such a textile product for a mesh sheet or the like. In the case of mesh sheets, these are thermoformed to soften or melt the sheath component of the core-sheath-type composite long fiber so that the fabric and the net are not noticed, and the fabric and net It is also known to fuse intersections. These matters are described in Patent Document 1.
特開２００９－２９９２０９号公報JP 2009-299209 A
　しかしながら、特許文献１記載の織物等を熱成形すると、融着部位の耐摩耗性が不十分であることが判明した。また、特許文献１記載の織物同士を積層し、熱成形して接着すると、織物同士の接着力が不十分で剥離しやすいことも判明した。 However, it has been found that when the woven fabric described in Patent Document 1 is thermoformed, the abrasion resistance of the fused part is insufficient. It has also been found that when the fabrics described in Patent Document 1 are laminated, thermoformed, and bonded, the adhesive force between the fabrics is insufficient and they are easily peeled off.
　本発明の課題は、熱成形した際に融着部位の耐摩耗性に優れ、かつ、織物同士や他種物品に対する接着力に優れた熱成形体を得るための熱成形法を提供することにある。 An object of the present invention is to provide a thermoforming method for obtaining a thermoformed article having excellent wear resistance at a fusion site when thermoformed and having excellent adhesion to fabrics and other kinds of articles. is there.
　本発明は、芯鞘型複合長繊維の鞘成分であるポリエチレンとして、メルトフローレートの低いもの、すなわち、溶融した際の流動性の低いものを採用することにより、上記課題を解決したものである。すなわち、本発明は、温度２８０℃及び荷重２．１６ｋｇの測定条件下でのメルトフローレートが１０～１５ｇ／１０分であるポリエチレンを鞘成分とし、ポリエチレンテレフタレートを芯成分として、複合溶融紡糸法により、該芯成分と該鞘成分の質量比が芯成分：鞘成分＝１～４：１である芯鞘型複合長繊維が集束されてなるマルチフィラメント糸を得る工程、前記マルチフィラメント糸を用いて繊維製品を得る工程及び前記繊維製品を加熱し、前記ポリエチレンを溶融させると共に、前記ポリエチレンテレフタレートは当初の繊維形態を維持した状態で、前記芯鞘型複合長繊維相互間を融着せしめる工程を具備することを特徴とする繊維製品の熱成形法に関するものである。 This invention solves the said subject by employ | adopting the thing with a low melt flow rate, ie, the low fluidity | liquidity at the time of melting, as polyethylene which is a sheath component of a core-sheath-type composite long fiber. . That is, the present invention uses a composite melt spinning method in which polyethylene having a melt flow rate of 10 to 15 g / 10 min under measurement conditions of a temperature of 280 ° C. and a load of 2.16 kg is used as a sheath component, and polyethylene terephthalate is used as a core component. A step of obtaining a multifilament yarn in which core-sheath composite long fibers having a mass ratio of the core component to the sheath component of core component: sheath component = 1 to 4: 1 are bundled, using the multifilament yarn A step of obtaining a fiber product and a step of heating the fiber product to melt the polyethylene and fusing the core-sheath type composite long fibers with the polyethylene terephthalate maintaining the original fiber form. The present invention relates to a method for thermoforming a textile product.
　本発明においては、まず、温度２８０℃及び荷重２．１６ｋｇの測定条件下でのメルトフローレートが１０～１５ｇ／１０分であるポリエチレンを準備する。ポリエチレンの種類としては、線状高密度ポリエチレン、線状低密度ポリエチレン又は分枝状ポリエチレン等があり、またその分子量は種々である。本発明は、これらのポリエチレンの中から、上記した特定のポリエチレンを用いる。具体的には、線状低密度ポリエチレンの中から分子量の高いものが、好ましく用いられる。メルトフローレートが１０ｇ／１０分未満であると、ポリエチレンテレフタレートと複合溶融紡糸しにくくなるので、好ましくない。また、メルトフローレートが１５ｇ／１０分を超えると、融着部位の耐摩耗性が低下すると共に、他種物品に対する接着力が低下するので、好ましくない。メルトフローレートの測定は、温度２８０℃及び荷重２．１６ｋｇの条件下で、ＪＩＳ　Ｋ７２１０記載の方法に準拠して行うことは言うまでもない。なお、本発明の実施例では、東洋精機製作所社製のメルトインデクサーＧ－０１なる機器を用い、上記した条件下でメルトフローレートを測定した。 In the present invention, first, polyethylene having a melt flow rate of 10 to 15 g / 10 min under measurement conditions of a temperature of 280 ° C. and a load of 2.16 kg is prepared. Examples of the polyethylene include linear high density polyethylene, linear low density polyethylene, and branched polyethylene, and the molecular weights thereof are various. The present invention uses the specific polyethylene described above from among these polyethylenes. Specifically, a linear low density polyethylene having a high molecular weight is preferably used. When the melt flow rate is less than 10 g / 10 min, it becomes difficult to perform composite melt spinning with polyethylene terephthalate, which is not preferable. On the other hand, if the melt flow rate exceeds 15 g / 10 min, the wear resistance of the fused part is lowered and the adhesive force to other kinds of articles is lowered, which is not preferable. Needless to say, the melt flow rate is measured in accordance with the method described in JIS K7210 under the conditions of a temperature of 280 ° C. and a load of 2.16 kg. In the examples of the present invention, the melt flow rate was measured under the above-described conditions using a device called a melt indexer G-01 manufactured by Toyo Seiki Seisakusho.
　上記した特定のポリエチレンと共に、ポリエチレンテレフタレートを準備する。ポリエチレンテレフタレートとしては、従来公知のものが用いられる。ポリエチレンテレフタレートは、ポリエチレンが溶融する温度では溶融せず、当初の繊維形態を維持するものである。したがって、融着部位の耐摩耗性や接着力とは無関係であるので、そのメルトフローレートは任意である。そして、ポリエチレンを鞘成分とし、ポリエチレンテレフタレートを芯成分として、複合溶融紡糸法によって芯鞘型長繊維を得た後に、これを集束してマルチフィラメント糸を得る。複合溶融紡糸法において、芯成分と鞘成分の質量比が芯成分：鞘成分＝１～３：１となるように、ノズル孔の形態及びノズル孔からの芯成分と鞘成分の吐出量を調整する。鞘成分の質量比がこの範囲より低いと、融着部位の耐摩耗性や接着力が低下するので、好ましくない。また、鞘成分の質量比がこの範囲より高いと、当初の繊維形態を維持している芯成分の径が小さくなり、熱成形体の引張強度が低下するので、好ましくない。なお、芯鞘型複合長繊維の繊度は任意であるが、一般的に４～２０デシテックス程度であり、またマルチフィラメント糸を得る際の芯鞘型複合長繊維の集束本数も任意であるが、一般的に３０～４００本程度である。また、芯鞘型複合長繊維の芯と鞘とは略同心に配置されているのが好ましい。偏心していると、熱成形時に収縮しやすくなり、形態安定性に劣る。 Prepare polyethylene terephthalate together with the specific polyethylene mentioned above. A conventionally well-known thing is used as a polyethylene terephthalate. Polyethylene terephthalate does not melt at the temperature at which polyethylene melts, and maintains the original fiber form. Therefore, the melt flow rate is arbitrary because it has nothing to do with the wear resistance and adhesive strength of the fused part. And after using polyethylene as a sheath component and polyethylene terephthalate as a core component to obtain a core-sheath-type long fiber by a composite melt spinning method, it is converged to obtain a multifilament yarn. In the composite melt spinning method, the shape of the nozzle hole and the discharge amount of the core component and the sheath component from the nozzle hole are adjusted so that the mass ratio of the core component to the sheath component is core component: sheath component = 1-3: 1 To do. When the mass ratio of the sheath component is lower than this range, it is not preferable because the wear resistance and adhesive strength of the fused part are lowered. On the other hand, when the mass ratio of the sheath component is higher than this range, the diameter of the core component maintaining the original fiber form is reduced, and the tensile strength of the thermoformed product is lowered, which is not preferable. Although the fineness of the core-sheath type composite continuous fiber is arbitrary, it is generally about 4 to 20 dtex, and the number of the core-sheath type composite long fiber bundled when obtaining the multifilament yarn is also arbitrary. Generally, there are about 30 to 400 pieces. Moreover, it is preferable that the core and the sheath of the core-sheath type composite continuous fiber are disposed substantially concentrically. If it is decentered, it tends to shrink during thermoforming, resulting in poor shape stability.
　マルチフィラメント糸を用いて繊維製品を得る。マルチフィラメント糸は無撚であってよいが、一般的に撚りが施されている。繊維製品としては、たとえば、マルチフィラメント糸を経糸及び緯糸として製織し織物を得てもよいし、マルチフィラメント糸を経編機や緯編機に掛けて編物を得てもよい。また、マルチフィラメント糸を複数本撚り合わせながら、結節網地や無結節網地を得てもよい。さらに、マルチフィラメント糸を複数本組んで紐を得てよい。その他、種々の方法で従来公知の繊維製品を得る。 繊 維 Obtain fiber products using multifilament yarn. The multifilament yarn may be untwisted but is generally twisted. As the textile product, for example, a woven fabric may be obtained by weaving multifilament yarn as warp and weft, or a knitted fabric may be obtained by applying the multifilament yarn to a warp knitting machine or a weft knitting machine. Further, a knotted network or a knotless network may be obtained while twisting a plurality of multifilament yarns. Furthermore, a string may be obtained by assembling a plurality of multifilament yarns. In addition, conventionally known fiber products are obtained by various methods.
　編織物等の繊維製品を製編織する際には、マルチフィラメント糸を筬に通すことになる。具体的には、織物の場合は筬目に経糸であるマルチフィラメント糸を通すことになるし、経編の場合は筬のガイドアイに経糸であるマルチフィラメント糸を通すことになる。この際、マルチフィラメント糸は筬目やガイドアイの縁に接触し摩擦が生じて、マルチフィラメント糸に摩耗が生じる。本発明で用いるマルチフィラメント糸は、かかる状況において耐摩耗性に優れているものである。これは、マルチフィラメント糸を構成している芯鞘型複合長繊維の鞘成分が低メルトフローレートであるため、筬目やガイドアイの縁と接触する鞘成分が摩擦熱で溶融又は軟化しても、筬目やガイドアイの縁に付着しにくく、鞘成分が削り取られにくいからである。特に、鞘成分にステアリン酸マグネシウムを含有させておくと、鞘成分がより筬目やガイドアイの縁に付着しにくくなる。鞘成分中におけるステアリン酸マグネシウムの含有量は、０．０１～１重量％程度でよい。したがって、本発明に用いるマルチフィラメント糸を採用すれば、芯鞘型複合長繊維中の鞘成分の損傷を防止しながら、編織物等の繊維製品を得られ、繊維製品同士を熱接着した場合も接着力が向上する。 When weaving and knitting textile products such as knitted fabrics, the multifilament yarn is passed through the kite. Specifically, in the case of a woven fabric, a multifilament yarn that is a warp is passed through the knot, and in the case of warp knitting, the multifilament yarn that is a warp is passed through a guide eye of the knot. At this time, the multifilament yarn comes into contact with the edges of the mesh and the guide eye to cause friction, and wear occurs in the multifilament yarn. The multifilament yarn used in the present invention is excellent in abrasion resistance in such a situation. This is because the sheath component of the core-sheath type composite continuous fiber constituting the multifilament yarn has a low melt flow rate, so that the sheath component contacting the edge of the eyelet or guide eye is melted or softened by frictional heat. This is because it is difficult to adhere to the edges of the eyelets and the guide eye, and the sheath component is difficult to be scraped off. In particular, if magnesium stearate is contained in the sheath component, the sheath component is less likely to adhere to the edges of the eyelets or guide eyes. The content of magnesium stearate in the sheath component may be about 0.01 to 1% by weight. Therefore, if the multifilament yarn used in the present invention is adopted, a textile product such as a knitted fabric can be obtained while preventing damage to the sheath component in the core-sheath type composite continuous fiber, and the fiber products may be thermally bonded to each other. Adhesive strength is improved.
　次に、得られた繊維製品を加熱し、熱成形を施す。加熱温度は、芯鞘型複合長繊維の鞘成分であるポリエチレンの融点以上であり、具体的には１４０℃以上である。この加熱により、ポリエチレンが溶融すると共に、芯成分であるポリエチレンテレフタレートは当初の繊維形態を維持した状態で、芯鞘型複合長繊維相互間が融着して、熱成形体が得られる。たとえば、繊維製品として粗目の編織物又は網地を採用し、この編織物又は網地を加熱してポリエチレンを溶融させると、編織物又は網地の交点で強固に融着した熱成形体が得られる。なお、編織物又は網地の交点とは、たとえば、織物の場合は経糸及び緯糸の交差点であり、編物や網地の場合は結節点のことである。かかる熱成形体は、目づれのしにくいメッシュシートや剥落防止シート等として建設現場で良好に用いることができる。また、編織物又は網地の交点だけではなく、全体に融着させると、剛性のある熱成形体となって、定置網、籠網或いは養殖網等の漁網として好適に用いることができる。 Next, the obtained fiber product is heated and thermoformed. The heating temperature is equal to or higher than the melting point of polyethylene, which is the sheath component of the core-sheath composite long fiber, and specifically 140 ° C. or higher. By this heating, polyethylene is melted, and the core-component polyethylene terephthalate is fused with the core-sheath composite long fibers in a state in which the original fiber form is maintained, thereby obtaining a thermoformed body. For example, when a coarse knitted fabric or net is used as a textile product and the knitted fabric or net is heated to melt polyethylene, a thermoformed body that is firmly fused at the intersection of the knitted fabric or net is obtained. It is done. The intersection of the knitted fabric or the net is, for example, an intersection of warp and weft in the case of a woven fabric, and a knot in the case of a knitted or net. Such a thermoformed article can be favorably used at a construction site as a mesh sheet that is not easily noticed or a peeling prevention sheet. Moreover, if it fuse | melts not only at the intersection of a knitted fabric or a net, but it fuse | melts to the whole, it will become a rigid thermoforming body and can be used suitably as fishing nets, such as a stationary net | network, a seine net, or a culture net | network.
　得られた繊維製品同士を積層した積層体を加熱して、熱成形を施してもよい。たとえば、織物同士、織物と網地又は編物と網地を積層して、熱成形してもよい。この場合、積層体の積層面において、上層の繊維製品と下層の繊維製品の各芯鞘型複合長繊維相互間が融着して接着し、積層面で剥離しにくい複合材料が得られる。また、繊維製品と他種物品を積層した積層体を加熱して、熱成形を施してもよい。この場合、繊維製品中の芯鞘型複合長繊維の鞘成分が融着して、他種物品と接着する。他種物品としては、プラスチック製物品、金属製物品又はセラミック製物品等の任意の物品が挙げられる。特に、他種物品として、ポリオレフィン系樹脂等で形成された筐体を用いると、芯鞘型複合長繊維の鞘成分とポリオレフィン系樹脂とが強固に接着すると共に、芯成分が当初の繊維状態を維持しているので、補強された筐体が得られる。 The laminated body obtained by laminating the obtained fiber products may be heated to perform thermoforming. For example, woven fabrics, woven fabrics and mesh fabrics, or knitted fabrics and mesh fabrics may be laminated and thermoformed. In this case, on the laminated surface of the laminated body, the core-sheath type composite long fibers of the upper layer fiber product and the lower layer fiber product are fused and bonded to each other, and a composite material that is difficult to peel off on the laminated surface is obtained. Moreover, you may heat the laminated body which laminated | stacked the textile product and the other kind article | item, and may perform thermoforming. In this case, the sheath component of the core-sheath type composite long fiber in the fiber product is fused and bonded to another type of article. Examples of other types of articles include arbitrary articles such as plastic articles, metal articles, and ceramic articles. In particular, when a casing formed of a polyolefin resin or the like is used as another type of article, the sheath component of the core-sheath composite long fiber and the polyolefin resin are firmly bonded, and the core component has the original fiber state. As a result, a reinforced housing is obtained.
　本発明に係る繊維製品の熱成形法は、繊維製品中に特定のポリエチレンを鞘成分とする芯鞘型複合長繊維が存在するので、このポリエチレンで芯鞘型複合長繊維相互間を融着すると、融着部位の耐摩耗性が向上するという効果を奏する。また、このポリエチレンで融着した芯鞘型複合長繊維相互間は、接着力が高くなるという効果も奏する。したがって、たとえば、本発明で用いる繊維製品と他種物品とを積層して融着すると、繊維製品と他種物品とが剥離しにくくなる。 In the thermoforming method for fiber products according to the present invention, since core-sheath type composite long fibers having a specific polyethylene as a sheath component are present in the fiber product, the core-sheath type composite long fibers are fused together with this polyethylene. There is an effect that the wear resistance of the fused part is improved. In addition, the core-sheath type composite continuous fibers fused with the polyethylene also have an effect of increasing the adhesive force. Therefore, for example, when the fiber product used in the present invention and another type of article are laminated and fused, the fiber product and the other type of article are difficult to peel off.
実施例１
［マルチフィラメント糸の準備］
　鞘成分として、融点１２６℃でメルトフローレート１３．２ｇ／１０分のポリエチレン（日本ポリエチレン株式会社製、品番ＵＪ９６０）を準備した。一方、芯成分として、融点２５６℃のポリエチレンテレフタレートを準備した。
　孔径０．６ｍｍで孔数１９２個の芯鞘型複合紡糸口金を具えた複合溶融紡糸装置に、上記したポリエチレンとポリエチレンテレフタレートを供給し、口金温度を２８０℃とし、ポリエチレン：ポリエチレンテレフタレート＝１：３（質量比）として、複合溶融紡糸を行った。得られた芯鞘型複合長繊維１９２本が集束した糸条に、常用の手段で冷却、延伸及び弛緩処理を施し、１６７０デシテックス／１９２フィラメントのマルチフィラメント糸を得た。 Example 1
[Preparation of multifilament yarn]
As a sheath component, polyethylene (manufactured by Nippon Polyethylene Co., Ltd., product number UJ960) having a melting point of 126 ° C. and a melt flow rate of 13.2 g / 10 min was prepared. On the other hand, polyethylene terephthalate having a melting point of 256 ° C. was prepared as a core component.
The above-mentioned polyethylene and polyethylene terephthalate are supplied to a compound melt spinning apparatus equipped with a core-sheath type compound spinneret having a hole diameter of 0.6 mm and 192 holes. As the (mass ratio), composite melt spinning was performed. The obtained filaments having 192 core-sheath composite long fibers converged were subjected to cooling, stretching and relaxation treatments by conventional means to obtain 1670 dtex / 192 filament multifilament yarns.
［繊維製品の準備及び熱成形（その１）］
　得られたマルチフィラメント糸に撚数６０Ｔ／ｍの撚りを掛け、経糸及び緯糸として、経糸密度及び緯糸密度共に２０本／インチの平織物を製織した。巾４０ｍｍで長さ２６０ｍｍの大きさに切断した平織物を、二枚積層して金型に入れ、温度１５０℃、時間５分及び圧力０．５ＭＰａの条件で熱成形し、中央部分に巾２０ｍｍで長さ２００ｍｍの融着部位を形成した熱成形体Ａを得た。この熱成形体Ａは、その中央部分において、各平織物中の芯鞘型複合長繊維の鞘成分が融着してなるもので、二枚の平織物が強固に接着されてなるものであった。 [Preparation of fiber products and thermoforming (1)]
The obtained multifilament yarn was twisted with a twist number of 60 T / m, and a plain fabric having a warp density and a weft density of 20 yarns / inch was woven as warp and weft. Two plain woven fabrics cut to a size of 40 mm in width and 260 mm in length are stacked and placed in a mold, thermoformed under the conditions of a temperature of 150 ° C., a time of 5 minutes and a pressure of 0.5 MPa, and a width of 20 mm in the center part. To obtain a thermoformed product A in which a fusion site having a length of 200 mm was formed. This thermoformed product A is formed by fusing the sheath component of the core-sheath type composite continuous fiber in each plain fabric at the center thereof, and is obtained by firmly bonding the two plain fabrics. It was.
［繊維製品の準備及び熱成形（その２）］
　得られたマルチフィラメント糸に撚数６０Ｔ／ｍの撚りを掛け、８打角製紐機に導入し、８本組紐を得た。そして、温度１５０℃及び時間１０分の条件で、組紐中の芯鞘型複合長繊維の鞘成分を融着させ、全体が一体化された熱成形体Ｂを得た。この熱成形体Ｂは、耐摩耗性に優れたものであった。 [Preparation of fiber products and thermoforming (2)]
The obtained multifilament yarn was twisted with a twist number of 60 T / m and introduced into an 8-striking cord making machine to obtain an 8-piece braid. And the sheath component of the core-sheath type | mold composite continuous fiber in a braid was fuse | melted on the conditions of temperature 150 degreeC and time 10 minutes, and the thermoforming body B with which the whole was integrated was obtained. This thermoformed product B was excellent in wear resistance.
実施例２
　鞘成分として、融点１２７℃でメルトフローレート１４．５ｇ／１０分のポリエチレン（株式会社プライムポリマー製、品番ＳＰ４０３０）を用いる他は、実施例１と同一の方法でマルチフィラメント糸を得た。このマルチフィラメント糸を用い、実施例１と同一の方法で、繊維製品の準備及び熱成形（その１）及び（その２）を行って、熱成形体Ａ及びＢを得た。 Example 2
A multifilament yarn was obtained by the same method as in Example 1 except that polyethylene (manufactured by Prime Polymer Co., Ltd., product number SP4030) having a melting point of 127 ° C. and a melt flow rate of 14.5 g / 10 minutes was used as the sheath component. Using this multifilament yarn, fiber products were prepared and thermoformed (part 1) and (part 2) in the same manner as in Example 1 to obtain thermoformed bodies A and B.
比較例１
　鞘成分として、融点１３３℃でメルトフローレート６５．３ｇ／１０分のポリエチレン（日本ポリエチレン株式会社製、品番ＨＪ４９０）を用いる他は、実施例１と同一の方法でマルチフィラメント糸を得た。このマルチフィラメント糸を用い、実施例１と同一の方法で、繊維製品の準備及び熱成形（その１）及び（その２）を行って、熱成形体Ａ及びＢを得た。 Comparative Example 1
A multifilament yarn was obtained in the same manner as in Example 1, except that polyethylene (manufactured by Nippon Polyethylene Co., Ltd., product number HJ490) having a melting point of 133 ° C. and a melt flow rate of 65.3 g / 10 min was used as the sheath component. Using this multifilament yarn, fiber products were prepared and thermoformed (part 1) and (part 2) in the same manner as in Example 1 to obtain thermoformed bodies A and B.
比較例２
　鞘成分として、融点１２３℃でメルトフローレート５９．８ｇ／１０分のポリエチレン（日本ポリエチレン株式会社製、品番ＵＪ５６０）を用いる他は、実施例１と同一の方法でマルチフィラメント糸を得た。このマルチフィラメント糸を用い、実施例１と同一の方法で、繊維製品の準備及び熱成形（その１）及び（その２）を行って、熱成形体Ａ及びＢを得た。 Comparative Example 2
A multifilament yarn was obtained in the same manner as in Example 1 except that polyethylene (manufactured by Nippon Polyethylene Co., Ltd., product number UJ560) having a melting point of 123 ° C. and a melt flow rate of 59.8 g / 10 minutes was used as the sheath component. Using this multifilament yarn, fiber products were prepared and thermoformed (part 1) and (part 2) in the same manner as in Example 1 to obtain thermoformed bodies A and B.
　実施例１、２、比較例１及び２で得られた熱成形体Ａについて、株式会社島津製作所製オートグラフＡＧ５０ｋＮＩを用い、熱成形体Ａの巾の一端で接着されていない各平織物の部位をチャックで把持して、引張速度１００ｍｍ／分で剥離試験を行い、剥離強力を測定した。剥離試験は３点の熱成形体Ａについて行い、剥離強力は試験中において荷重が極大値を示す各値の平均値を剥離強力とした。この結果、実施例１に係る熱成形体Ａは１７．８Ｎ、実施例２に係るものは１５．７Ｎ、比較例１に係るものは１０．１Ｎ、比較例２に係るものは１３．１Ｎであった。このことから、実施例１及び２に係る熱成形体Ａは、二枚の平織物の接着力に優れていることが分かる。 About the thermoformed body A obtained in Examples 1 and 2 and Comparative Examples 1 and 2, using the autograph AG50kNI manufactured by Shimadzu Corporation, each plain fabric part not bonded at one end of the width of the thermoformed body A Was gripped with a chuck, a peel test was performed at a tensile speed of 100 mm / min, and the peel strength was measured. The peel test was conducted on three thermoformed bodies A, and the peel strength was defined as an average value of each value at which the load exhibited a maximum value during the test. As a result, the thermoformed product A according to Example 1 is 17.8 N, the one according to Example 2 is 15.7 N, the one according to Comparative Example 1 is 10.1 N, and the one according to Comparative Example 2 is 13.1 N. there were. From this, it turns out that the thermoformed body A which concerns on Example 1 and 2 is excellent in the adhesive force of two plain fabrics.
　実施例１、２、比較例１及び２で得られた熱成形体Ｂについて、株式会社米倉製作所製の耐摩耗試験機を用いて、耐摩耗性を判定した。具体的には、熱成形体Ｂの一端に１８０ｇの錘を吊るし、六角棒と直角に接触するように、他端をチャックで把持した。そして、他端を往復運動させた。往復運動は、往復回数３０±１回／分で、ストローク幅を２３０ｍｍ±３０ｍｍとした。この結果、実施例１及び２に係る熱成形体Ｂに比べて、比較例１及び２に係る熱成形体Ｂの表面の毛羽立ちが顕著であった。また、錘の質量を１ｋｇに代えて、約２０分摩耗試験を続けると、実施例１及び２に係る熱成形体Ｂは破断しなかったが、比較例１に係る熱成形体Ｂは約１５分で破断した。また、比較例２に係る熱成形体Ｂは破断はしないものの、熱成形体Ｂの融着が解けて、マルチフィラメント糸が露出して繊維状となった。以上のことから、実施例１及び２に係る熱成形体Ｂは耐摩耗性に優れていることが分かる。 The abrasion resistance of the thermoformed bodies B obtained in Examples 1 and 2 and Comparative Examples 1 and 2 was determined using an abrasion resistance tester manufactured by Yonekura Seisakusho Co., Ltd. Specifically, a 180 g weight was suspended at one end of the thermoformed body B, and the other end was gripped by a chuck so as to be in contact with the hexagonal bar at a right angle. And the other end was reciprocated. The reciprocating motion was 30 ± 1 times / minute, and the stroke width was 230 mm ± 30 mm. As a result, as compared with the thermoformed product B according to Examples 1 and 2, the surface of the thermoformed product B according to Comparative Examples 1 and 2 was more prominent. Further, when the weight test was continued for about 20 minutes by replacing the weight of the weight with 1 kg, the thermoformed product B according to Examples 1 and 2 did not break, but the thermoformed product B according to Comparative Example 1 was about 15%. It broke in minutes. Moreover, although the thermoformed body B which concerns on the comparative example 2 was not fractured | ruptured, the fusion | melting of the thermoformed body B was released, and the multifilament yarn was exposed and became a fibrous form. From the above, it can be seen that the thermoformed body B according to Examples 1 and 2 is excellent in wear resistance.
実施例３
［マルチフィラメント糸の準備］
　鞘成分として、融点１２６℃でメルトフローレート１３．２ｇ／１０分のポリエチレン（日本ポリエチレン株式会社製、品番ＵＪ９６０）に、ステアリン酸マグネシウム０．０５重量％添加したポリエチレン組成物を準備した。一方、芯成分として、融点２５６℃のポリエチレンテレフタレートを準備した。
　孔径０．６ｍｍで孔数１２８個の芯鞘型複合紡糸口金を具えた複合溶融紡糸装置に、上記したポリエチレン組成物とポリエチレンテレフタレートを供給し、口金温度を２８０℃とし、ポリエチレン組成物：ポリエチレンテレフタレート＝１：３（質量比）として、複合溶融紡糸を行った。得られた芯鞘型複合長繊維１２８本が集束した糸条に、常用の手段で冷却、延伸及び弛緩処理を施し、１８３０デシテックス／１２８フィラメントのマルチフィラメント糸を得た。 Example 3
[Preparation of multifilament yarn]
As a sheath component, a polyethylene composition was prepared by adding 0.05% by weight of magnesium stearate to polyethylene (manufactured by Nippon Polyethylene Co., Ltd., product number UJ960) having a melting point of 126 ° C. and a melt flow rate of 13.2 g / 10 min. On the other hand, polyethylene terephthalate having a melting point of 256 ° C. was prepared as a core component.
The above-mentioned polyethylene composition and polyethylene terephthalate are supplied to a compound melt spinning apparatus equipped with a core-sheath type compound spinneret having a hole diameter of 0.6 mm and a number of holes of 128, and the die temperature is set to 280 ° C. The polyethylene composition: polyethylene terephthalate Composite melt spinning was performed at = 1: 3 (mass ratio). The obtained filaments with 128 core-sheath composite long fibers bundled were subjected to cooling, drawing and relaxation treatments by conventional means to obtain 1830 dtex / 128 filament multifilament yarns.
　得られたマルチフィラメント糸に撚数６０Ｔ／ｍの撚りを掛け、８打角製紐機に導入し、８本組紐を得た。そして、温度１８０℃及び時間２分の条件で、組紐中の芯鞘型複合長繊維の鞘成分を融着させ、全体が一体化された熱成形体を得た。この熱成形体は、耐摩耗性に優れたものであった。 The obtained multifilament yarn was twisted with a twist number of 60 T / m and introduced into an 8-striking cord making machine to obtain an 8-strand braid. And the sheath component of the core-sheath type | mold composite continuous fiber in a braid was fuse | melted on the conditions of temperature 180 degreeC and time 2 minutes, and the thermoforming body by which the whole was integrated was obtained. This thermoformed article was excellent in wear resistance.
　また、ステンレス製筬（筬羽４４本／吋）を三枚準備し、三枚の筬を平行に配置すると共に真ん中の筬の位置をずらし、マルチフィラメント糸が真ん中で４５°の角度となるように通し、マルチフィラメント糸を速度１０００ｍ／分で１０分間走行させた。その後、各筬をマイクロスコープで観察したところ、削れカスが付着しているものの、その量は非常に少ないものであった。 Also, prepare three stainless steel cocoons (44 cocoons / 筬), arrange the three cocoons in parallel and shift the position of the middle cocoon so that the multifilament yarn has an angle of 45 ° in the middle. The multifilament yarn was run at a speed of 1000 m / min for 10 minutes. Thereafter, when each of the scissors was observed with a microscope, the amount of scrap was attached, but the amount was very small.

Claims (6)

  1. 　温度２８０℃及び荷重２．１６ｋｇの測定条件下でのメルトフローレートが１０～１５ｇ／１０分であるポリエチレンを鞘成分とし、ポリエチレンテレフタレートを芯成分として、複合溶融紡糸法により、該芯成分と該鞘成分の質量比が芯成分：鞘成分＝１～４：１である芯鞘型複合長繊維が集束されてなるマルチフィラメント糸を得る工程、
    　前記マルチフィラメント糸を用いて繊維製品を得る工程及び
    　前記繊維製品を加熱し、前記ポリエチレンを溶融させると共に、前記ポリエチレンテレフタレートは当初の繊維形態を維持した状態で、前記芯鞘型複合長繊維相互間を融着せしめる工程を具備することを特徴とする繊維製品の熱成形法。     Polyethylene having a melt flow rate of 10 to 15 g / 10 min under the measurement conditions of a temperature of 280 ° C. and a load of 2.16 kg is used as a sheath component, and polyethylene terephthalate is used as a core component. A step of obtaining a multifilament yarn in which core-sheath composite long fibers having a sheath component mass ratio of core component: sheath component = 1 to 4: 1 are bundled;
    A step of obtaining a fiber product using the multifilament yarn; and heating the fiber product to melt the polyethylene, while maintaining the original fiber form of the polyethylene terephthalate, A method for thermoforming a textile product, comprising the step of fusing the material.
  2. 　繊維製品が、編織物、網地及び紐よりなる群から選ばれたものである請求項１記載の繊維製品の熱成形法。 The method for thermoforming a textile product according to claim 1, wherein the textile product is selected from the group consisting of a knitted fabric, a net and a string.
  3. 　繊維製品同士を積層した後に、ポリエチレンを溶融させると共に、前記ポリエチレンテレフタレートは当初の繊維形態を維持した状態で、該繊維製品中に存在する芯鞘型複合長繊維相互間を融着せしめると共に、該繊維製品同士を一体化させる請求項１記載の繊維製品の熱成形法。 After laminating the fiber products, the polyethylene is melted, and the polyethylene terephthalate is fused with the core-sheath type composite long fibers existing in the fiber product in the state where the original fiber form is maintained. The method for thermoforming a textile product according to claim 1, wherein the textile products are integrated with each other.
  4. 　繊維製品と他種物品を積層した後に、ポリエチレンを溶融させると共に、前記ポリエチレンテレフタレートは当初の繊維形態を維持した状態で、該繊維製品中に存在する芯鞘型複合長繊維相互間を融着せしめると共に、該繊維製品と該他種物品を一体化させる請求項１記載の繊維製品の熱成形法。 After laminating the fiber product and other kinds of articles, the polyethylene is melted, and the polyethylene terephthalate fuses the core-sheath type composite long fibers existing in the fiber product while maintaining the original fiber form. The method for thermoforming a textile product according to claim 1, wherein the textile product and the other kind of article are integrated.
  5. 　請求項１に記載の繊維製品の熱成形法に用いるマルチフィラメント糸であって、
    　前記マルチフィラメント糸は複数本の芯鞘型複合長繊維が集束されてなり、
    　前記芯鞘型複合長繊維の芯成分はポリエチレンテレフタレートであり、前記芯鞘型複合長繊維の鞘成分は温度２８０℃及び荷重２．１６ｋｇの測定条件下でのメルトフローレートが１０～１５ｇ／１０分であるポリエチレンであり、該芯成分と該鞘成分の質量比は芯成分：鞘成分＝１～４：１であることを特徴とするマルチフィラメント糸。     It is a multifilament yarn used for the thermoforming method of the textile product according to claim 1,
    The multifilament yarn is formed by bundling a plurality of core-sheath composite long fibers,
    The core component of the core-sheath-type composite long fiber is polyethylene terephthalate, and the sheath component of the core-sheath-type composite long fiber has a melt flow rate of 10 to 15 g / 10 under measurement conditions of a temperature of 280 ° C. and a load of 2.16 kg. A multifilament yarn, characterized in that the mass ratio of the core component to the sheath component is core component: sheath component = 1 to 4: 1.
  6. 　鞘成分にステアリン酸マグネシウムが含有されている請求項５記載のマルチフィラメント糸。 The multifilament yarn according to claim 5, wherein the sheath component contains magnesium stearate.
PCT/JP2019/010604 2018-03-19 2019-03-14 Method for thermoforming textile product WO2019181737A1 (en)

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Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58208435A (en) * 1982-05-31 1983-12-05 昭和電工株式会社 Packing cloth
JPH03260115A (en) * 1990-03-05 1991-11-20 Teijin Ltd Heat-adhesion conjugate fiber
JPH09302944A (en) * 1996-05-10 1997-11-25 Nippon Poriorefuin Kk Mesh sheet for construction work
JPH10102348A (en) * 1996-09-30 1998-04-21 Hagiwara Kogyo Kk Mesh sheet for building work
JPH10276606A (en) * 1997-04-01 1998-10-20 Furukawa Electric Co Ltd:The Net for culturing short-neck clam
JP2003268667A (en) * 2002-03-07 2003-09-25 E I Du Pont De Nemours & Co Multiple component spun-bonded web and laminate thereof
JP2005105259A (en) * 2003-09-08 2005-04-21 Showa Denko Kk Polyester composition for molding pipe and molded pipe product
JP2009299209A (en) 2008-06-11 2009-12-24 Unitica Fibers Ltd Sheath-core conjugate filament

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58208435A (en) * 1982-05-31 1983-12-05 昭和電工株式会社 Packing cloth
JPH03260115A (en) * 1990-03-05 1991-11-20 Teijin Ltd Heat-adhesion conjugate fiber
JPH09302944A (en) * 1996-05-10 1997-11-25 Nippon Poriorefuin Kk Mesh sheet for construction work
JPH10102348A (en) * 1996-09-30 1998-04-21 Hagiwara Kogyo Kk Mesh sheet for building work
JPH10276606A (en) * 1997-04-01 1998-10-20 Furukawa Electric Co Ltd:The Net for culturing short-neck clam
JP2003268667A (en) * 2002-03-07 2003-09-25 E I Du Pont De Nemours & Co Multiple component spun-bonded web and laminate thereof
JP2005105259A (en) * 2003-09-08 2005-04-21 Showa Denko Kk Polyester composition for molding pipe and molded pipe product
JP2009299209A (en) 2008-06-11 2009-12-24 Unitica Fibers Ltd Sheath-core conjugate filament

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