WO2016110889A1 - 緩み止め紐 - Google Patents
緩み止め紐 Download PDFInfo
- Publication number
- WO2016110889A1 WO2016110889A1 PCT/JP2015/005801 JP2015005801W WO2016110889A1 WO 2016110889 A1 WO2016110889 A1 WO 2016110889A1 JP 2015005801 W JP2015005801 W JP 2015005801W WO 2016110889 A1 WO2016110889 A1 WO 2016110889A1
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- WO
- WIPO (PCT)
- Prior art keywords
- pico
- string
- fabric
- tubular
- linear body
- Prior art date
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Classifications
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- 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
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- A—HUMAN NECESSITIES
- A43—FOOTWEAR
- A43C—FASTENINGS OR ATTACHMENTS OF FOOTWEAR; LACES IN GENERAL
- A43C1/00—Shoe lacing fastenings
- A43C1/04—Shoe lacing fastenings with rings or loops
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- A—HUMAN NECESSITIES
- A43—FOOTWEAR
- A43C—FASTENINGS OR ATTACHMENTS OF FOOTWEAR; LACES IN GENERAL
- A43C9/00—Laces; Laces in general for garments made of textiles, leather, or plastics
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- 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
- D03D1/00—Woven fabrics designed to make specified articles
- D03D1/0035—Protective fabrics
- D03D1/0043—Protective fabrics for elongated members, i.e. sleeves
-
- 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
- D03D15/56—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 elastic
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- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D3/00—Woven fabrics characterised by their shape
- D03D3/02—Tubular fabrics
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04C—BRAIDING OR MANUFACTURE OF LACE, INCLUDING BOBBIN-NET OR CARBONISED LACE; BRAIDING MACHINES; BRAID; LACE
- D04C1/00—Braid or lace, e.g. pillow-lace; Processes for the manufacture thereof
- D04C1/06—Braid or lace serving particular purposes
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- A—HUMAN NECESSITIES
- A44—HABERDASHERY; JEWELLERY
- A44B—BUTTONS, PINS, BUCKLES, SLIDE FASTENERS, OR THE LIKE
- A44B99/00—Subject matter not provided for in other groups of this subclass
- A44B99/005—Turn-button fasteners
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- 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]
Definitions
- the present invention relates to a loosening prevention string, and more particularly, to a loosening prevention string used for shoes and clothes that are fastened through eyelets.
- Patent Document 1 proposes a technique in which a hook is provided on one side of an elongated member and a loop is provided on the opposite side so that the knot is difficult to be unfastened by a fastener action. Tangled knots are difficult to unravel, but the problem is that hooks and loops get caught and become difficult to tie.
- Patent Document 2 a string body composed of an elastic core and a sheath is used to repeat a strong portion and a weak portion that are tightened by the sheath.
- an elastic cord has been proposed in which the sheath loosens due to contraction of the elastic core and the diameter of the string body increases at a weakly tightened portion, whereas the diameter of the string body decreases when the elastic core is stretched.
- Patent Document 3 proposes a fixed string in which a central string having a hump is used as a core, and braided with a rubber-like material and a normal material. Although a nape is formed and an anti-slip effect is exhibited at the eyelet part, on the other hand, even if the fixed string is stretched, there is a problem that it is difficult to pass through the eyelet due to the small diameter change due to the presence of the central string hump.
- An object of the present invention is to provide a loosening prevention string that can exhibit a design effect.
- one or a plurality of pico linear bodies are woven in the warp direction in a tubular woven fabric, and the pico linear bodies are arranged at predetermined intervals in the length direction of the tubular woven fabric.
- a slack stop string was formed by protruding the surface in a loop shape.
- “pico” means an edge decoration in which small loops are continuous.
- the tubular woven fabric is composed of a structure having elasticity in the warp direction including an elastic yarn as a part of the warp, and a flexible string material is used for the linear body for pico.
- Technical means for changing the loop formed by the Pico linear body into a gentle mountain shape with a small curvature when the tubular fabric is stretched and into a sharp projecting shape with a large curvature when the tubular fabric is relaxed Can be adopted.
- the base of the protruding loop is extended by extending the entire string when passing through the eyelet, and the loop shape becomes a gentle mountain.
- the surface of the cord becomes a smooth shape with small irregularities, so that the cord can be easily passed.
- an elastomeric string material having a single diameter of 1 to 3 mm, specifically, rubber rubber such as natural rubber and synthetic rubber, urethane rubber, silicon rubber, It is preferable to use an ellipse or a round string made of any one of polyurethane elastic yarns.
- a string material with an apparent diameter of 1 to 3 mm in which a plurality of yarns are assembled and integrated can be used for the above-mentioned Pico linear body. Specifically, it can be used in a Lilian knitting, a string, or a twisted yarn. Those integrated by the yarn bundle assembly process selected from the above can be suitably used.
- the Pico linear body is partially interlaced with the weft in the cylindrical woven fabric and restrained inside the cylindrical woven fabric, and in particular, a plurality of Pico linear bodies are provided on the cylindrical woven fabric.
- the plurality of pico linear bodies are tied together with wefts inside the tubular woven fabric at the non-projecting portion.
- the pitch between the loops protruding on the surface of the tubular fabric is 5 mm to 50 mm, the distance between the roots of each loop shape is 2 mm to 10 mm, and the height is 1 to 7 mm.
- a string material made of a heat-fusible fiber having a melting point of 120 ° C. or higher is used, and the Pico linear body and the weft and warp of the cylindrical woven fabric are placed inside the cylindrical woven fabric. It is preferable to heat seal with.
- the plurality of pico linear bodies woven in the cylindrical woven fabric are heat-sealed in the cylindrical woven fabric. It is preferable.
- the cord tip is arranged by arranging the elastic yarn woven as a part of the warp yarn in parallel with the pico linear body inside the cylindrical fabric without being entangled with the weft yarn.
- the part can be formed thinner.
- one or more pico linear bodies are woven into the tubular fabric in the warp direction, and the pico linear bodies are looped on the surface of the tubular fabric at predetermined intervals in the length direction. Therefore, when the string is bundled through the eyelet in clothes or shoes, the protruding loop acts as a resistance at the eyelet part to prevent the string from loosening.
- the protruding loop on the surface provides resistance to slipping, so once tied, it is difficult to break, and is especially effective for sports shoes that move rapidly.
- the string is made of a woven fabric made of a bag structure, it is possible to supply a loosening prevention string having a variety of design characteristics such as a structure pattern or a color pattern by jacquard patterning or the like. .
- the linear body for pico protruding in the loop shape is fused with any of the weft, warp, and other linear bodies for pico that intersect or intersect in the tubular woven fabric, The movement of the body can be suppressed, and a stable loop shape can be maintained.
- a string main body region L5 in which a linear body for pico projects continuously in a loop shape at a predetermined interval on the surface of the tubular textile in the length direction of the cylindrical fabric, and a linear body for pico If the cord tip regions L6 that are thinly formed as the core material are alternately formed and the center of the cord tip region L6 is cut by heat melting, the tip of the cord can be finished thin and hard without cell chip processing.
- FIG. 1 shows one embodiment of the present invention.
- what is indicated by reference numeral 1 is a loosening prevention string
- what is indicated by reference numeral 2 is a tubular woven fabric made of bag weave.
- What is indicated by reference numeral 3 is a pico linear body.
- the two pico linear bodies 3 and 3 are woven into the tubular fabric 2, and the loops 31 are formed on the surface of the tubular fabric 2 at predetermined intervals.
- the looseness prevention string 1 is formed by projecting.
- the tubular woven fabric 2 can be woven using a shuttle loom and alternately weave the front side and the back side with a double structure, or can be made into a bag weave by connecting the ears with a double structure using a needle loom, and the fabric width is 5
- the cross-sectional shape of the tubular woven fabric 2 after weaving is circular or oval. The cross-sectional shape is affected by the number of pico linear bodies 3 inserted into the cylindrical fabric 2 and the like.
- the warp and weft of the tubular fabric 2 can be woven yarns usually used for clothing, for example, natural fibers such as cotton and wool, or spun yarns made of synthetic fibers such as polyester, polyamide, and acrylic. Yarns, filament yarns, blended yarns, processed yarns, etc. The fineness of these yarns can be about 50 to 400 dtex, and in the weave structure, plain weave, twill, satin Jacquard patterns can be made using woven or dyed yarn.
- the tubular woven fabric 2 is woven with a flexible linear body for pico 3 separately from the warp, and the linear body for pico 3 is floated to a predetermined length inside the tubular woven fabric 2.
- the loop 31 is formed by repeating a short float to the front side of the tubular woven fabric 2 and increasing the feed length of the linear body 3 for the pico at the floating portion to the front side.
- one or a plurality of the pico linear bodies 3 are arranged, and when there are a plurality of the pico linear bodies 3, the pico linear bodies 3 are evenly spaced with respect to the circumferential direction of the tubular fabric 2, and the pico linear bodies 3 are further arranged. It is preferable that the loop 31 forming position by the linear body 3 is arranged at the same position (position on the same circumference) with respect to the length direction. The probability that any one of the plurality of loops 31 existing on the eyelet is caught by the eyelet is increased, and the loosening prevention effect is ensured.
- the floating length of the tubular woven fabric 2 to the front side that is, the root distance L1 between the loops 31 and 31 is 2 to 10 mm. This is because when the distance between the roots is 2 mm or less, the loop 31 stands in the vertical direction on the surface of the tubular fabric, and the protruding amount of the loop 31 becomes excessive, so that it passes through eyelets such as clothes and shoes. This is because the resistance of hooking becomes large and it becomes difficult to pass.
- the root distance L1 is set to 10 mm or more, the arc-shaped loop 31 with a very small protrusion amount is obtained, and the resistance to catching on the eyelet is reduced, and the loosening prevention effect which is the object of the present invention is achieved. This is because cannot be obtained.
- the height of the loop 31 it is preferable that the height of the loop 31 be in the range of 1 to 7 mm in consideration of the resistance of catching on the eyelet and the insertion property to the eyelet.
- the distance L1 between the roots of the loop 31 can be adjusted by the density and number of wefts that are floated to the front side of the tubular fabric 2 and the height of the loop 31 is linear. It can be determined by the feed amount of the body 3 and the shrinkage amount of the tubular fabric 2 after weaving.
- the pitch L2 between the loops 31 protruding to the front side of the tubular fabric 2 is as small as possible because it is easy to adjust the tightening.
- the pitch L2 is 5 to 5 from the relationship with the distance L1 between the roots of the loop 31 described above. It is preferable to be within the range of 50 mm. Note that the dimensions of the height of the loop 31, the distance L1 between the bases of the loop 31, and the pitch L2 between the loops 31 are the sizes measured in a free state without applying external force to the locking cord 1.
- FIG. 2 shows a loosening prevention string 1 in which a part of the warp of the tubular woven fabric 2 is woven using an elastic yarn, and the tubular woven fabric 2 is provided with stretchability.
- FIG. A state in which no tensile force is acting in the length direction of the string 1, (B) in FIG. 2 is a state in which a tensile force is acting in the direction of the arrow in (A).
- FIG. 2 (b) When a tensile force is applied, as shown in FIG. 2 (b), the distance L1 between the bases of the loop 31 is also extended, so that the loop 31 has a gentle mountain shape with a small curvature, and is loosened and freed. In this state, as shown in FIG.
- the root-to-root distance L1 is narrowed, and the shape of the loop 31 changes to a sharply protruding shape with a large curvature.
- the resistance is reduced by stretching the string, and the function of increasing the catching effect at the eyelet part after insertion and stopping the stretching is exhibited.
- a polyurethane elastic yarn may be used as it is.
- the polyurethane elastic yarn is used as a core and covered with a normal yarn. It is obtained by arranging and weaving at a ratio of one warp consisting of ordinary warp yarns, and the polyurethane elastic yarn mixing ratio is prevented from loosening due to the balance between recovery force and material cost during stretching.
- the amount is preferably 3 to 10% by weight based on the string 1.
- the pico linear body 3 Since the loop 31 in the slack-preventing string 1 is rubbed at the eyelet portion, the pico linear body 3 is preferably made of a material having excellent wear resistance, and the synthetic fiber yarn is subjected to processing such as Lilian knitting, string making or twisting yarn. By integrating and integrating a plurality of yarns, the wear resistance is excellent and the rigidity is increased, so that the catching resistance in the eyelet is increased.
- the pico linear body 3 preferably has an apparent diameter of 1 to 3 mm, and if the diameter is 1 mm or less, the rigidity of the pico linear body 3 is insufficient and resistance at the eyelet or knot is insufficient. On the other hand, if the diameter is 3 mm or more, the rigidity is too high to bend, and the main body of the tubular fabric 2 is meandering against the high rigidity of the pico linear body 3.
- the apparent diameter is the diameter of the linear body 3 for pico forming the loop 31 projecting on the surface of the tubular fabric 2 in the loosening prevention string 1 of the present invention, and indicates the major axis in the elliptical cross section. Is.
- the above-mentioned linear body 3 for pico it is also possible to use a string made of an elastomer having a single diameter of 1 to 3 mm, specifically rubber rubber such as natural rubber or synthetic rubber, urethane rubber, silicon rubber. Further, by using an ellipse or a round string made of any one of polyurethane elastic yarns, a further anti-slip effect can be obtained, and the hardness of the rubber is preferably 20 to 70.
- the hardness is a value in accordance with JIS 6253, and it is difficult to bend when the hardness is 70 or more, and it is impossible to form the loop 31, and when the hardness is 20 or less, the tensile strength and wear strength are insufficient.
- the preferred hardness is in the range of 20 to 70 due to the problem of poor weaving and product durability.
- the above-mentioned Pico linear body 3 includes a composite sheath having a core-sheath structure in which a high-melting polymer is a core and a low-melting polymer is a sheath. If this is done, there is an effect that the rigidity of the loop 31 by the pico linear body 3 is increased and the resistance at the eyelet part is increased, and this makes it possible to use a thinner pico linear body 3.
- the linear body 3 for pico is woven with a low melting point polymer and has a flexibility that is not thermally bonded, and by performing a thermal bonding process after weaving, the tubular fabric 2 is not disturbed, and the ideal loop 31 shape can be obtained, and furthermore, since the linear body 3 for pico and the tubular fabric 2 are bonded, it is possible to prevent the loop 31 from being pushed into the tubular fabric 2 due to an external force.
- the core-sheath composite yarn is not particularly limited, but a composite yarn composed of a polyester core-sheath composite yarn composed of a low-melting point polymer having a melting point of about 180 ° C. or less is used with respect to the linear body 3 for pico. Including about 5 to 15% by weight is preferable because it facilitates adhesion and can be surely adhered.
- the Pico linear body 3 intersects or crosses the weft and warp yarns. Since it is heat-sealed with either, the phenomenon that the loop 31 receives an external force and is pushed into the tubular fabric 2 can be reliably prevented.
- the pico linear bodies 3 are woven into the tubular woven fabric 2, the plurality of pico linear bodies 3, 3 woven in the cylindrical woven fabric 2 are connected to each other in the cylindrical woven fabric 2. It is preferable to heat seal with.
- the heat-meltable polymer for example, a polymer having a melting point of 120 ° C. or higher is preferable, and among them, if a heat-adhesive urethane elastic yarn having a melting point of 165 to 200 ° C. is used, the heat treatment temperature is relatively low. Therefore, it is preferable because it is easy to process and stretchability is also obtained.
- the string main body 11 of the tubular fabric 2 protrudes continuously on the surface of the tubular fabric 2 in a loop shape at predetermined intervals over the length direction.
- a string tip 12 having a core 32 as a pico linear body 3 inside the tubular fabric 2 can be formed narrower than the string main body 11, thereby omitting cell chip processing. be able to.
- Non-protruding portion of the loop In addition, with respect to the non-protruding portion L4 where the loop 31 is not formed (see FIG. 3), as shown in FIGS. In this way, it is hidden in the tubular fabric 2. Further, in this non-protruding portion L4, as shown in FIG. 4 (b), the linear body 3 for pico is partially interlaced with the weft and is restrained inside the tubular woven fabric 2. In particular, when a plurality of Pico linear bodies 3 are woven into the tubular woven fabric 2, it is preferable that the plurality of Pico linear bodies 3 and 3 are tied together with wefts within the cylindrical woven fabric 2. Thus, it is possible to prevent the phenomenon that the linear body 3 for pico is displaced by friction and the shape of the loop 31 is broken.
- a stronger slip prevention effect can be obtained by narrowing the crossing width of the wefts at the part where the Pico linear body 3 is partially crossed with the wefts and tying them up to increase the driving force.
- the manufacturing method of the said locking cord 1 is demonstrated.
- the high-stiffness string tip regions L6 are alternately formed.
- the length of the lace region L6 is preferably 10 to 80 mm, and the length of the lace body region L5 may be appropriately selected depending on the use.
- a shoelace usually has a length of about 0.4 to 3 m. It is a range.
- a fiber yarn having a large thermal shrinkage is used as the weft of the tubular fabric 2, and after the weaving, the diameter of the tubular fabric 2 is heat treated at a temperature equal to or higher than the melting point of the heat-fusible fiber yarn.
- the pico linear body 3 is melted by heat to be hardened.
- the middle of the stiffened cord tip region L6 is cut with a heat cutter or the like as a cutting portion C (see FIG. 5), so that the cut end portion which is a function of the cell chip can be prevented from being unwound and the eyelet can be cut without processing the cell chip. It is possible to exhibit good penetrability to the like.
- the pitch of the continuous loops 31 is very large and there is a sufficient distance between the adjacent loops 31, it is not necessary to provide the cord tip region L6 in which the loops 31 do not protrude. Since the distance is small, it is preferable to provide the cord tip region L6 without the loop 31 at the weaving stage of the fabric.
- Example 1 As shown in FIG. 1 using a needle loom according to the present embodiment, it has an appearance in which two loops are provided at predetermined intervals on the outer periphery of the tubular woven fabric, with the basic conditions of weaving and heat treatment shown in [Table 1].
- a rubber cord having a diameter of 1.5 mm was used for the linear body 3 for pico, the pitch between the loops was 7 mm, the distance between the loops was 2 mm, and the height was 1.5 mm. .
- Example 2 Under the same basic conditions as in Example 1 (Table 1), a rubber cord having a diameter of 2.0 mm was used for the linear body 3 for pico, the pitch between the loops was 7 mm, the distance between the roots was 3 mm, the height was 2 The loosening prevention string of Example 2 was obtained with a thickness of 0.5 mm.
- Example 3 Under the same basic conditions as in Example 1 (Table 1), a 2.0 mm diameter Lilian knitting is used for the linear body 3 for pico, the pitch between the loops is 6 mm, the distance between the roots is 2 mm, and the height is The loosening prevention string of Example 3 was obtained as 2.5 mm.
- Example 4 As shown in FIG. 1 using a needle loom according to the present embodiment, it has an appearance in which two loops are provided at predetermined intervals on the outer periphery of the cylindrical woven fabric, with the basic conditions of weaving and heat treatment shown in [Table 2].
- the heat-resistant fiber having a diameter of 1.0 mm is used for the linear body 3 for pico, the pitch between the loops is 6 mm, each loop shape is attached, the distance between the roots is 2 mm, and the height is 2.0 mm.
- the heat-fusible fiber was firmly bonded by heat treatment.
- Example 5" As shown in FIG. 1 using a needle loom according to the present embodiment, it has an appearance in which two loops are provided at predetermined intervals on the outer periphery of the tubular woven fabric, with the basic conditions of weaving and heat treatment shown in [Table 3].
- a heat-sealable fiber having a diameter of 1.5 mm is used for the linear body 3 for pico, the pitch between the loops is 9 mm, the distance between the loops is 1 mm, the distance between the roots is 1 mm, and the height is 2.0 mm.
- the heat-fusible fiber was firmly bonded by heat treatment.
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Woven Fabrics (AREA)
- Braiding, Manufacturing Of Bobbin-Net Or Lace, And Manufacturing Of Nets By Knotting (AREA)
Abstract
Description
まず図1は本発明の一実施態様を示し、図中、符号1で指示するものは、緩み止め紐であり、また符号2で指示するものは、袋織から成る筒状織物である。また符号3で指示するものは、ピコ用線状体である。また本実施例では、2本のピコ用線状体3・3を、筒状織物2に織り込み、当該ピコ用線状体3を、所定の間隔で筒状織物2の表面にループ31を成して突出させて緩み止め紐1を構成している。
筒状織物2はシャトル織機を用い、二重組織で表側と裏側を交互に製織する、或いはニードル織機を用いて二重組織で耳部を連結させて袋織とすることが出来、織物幅は5~15mmの細幅で製織されたもので、製織後の筒状織物2の断面形状は円形、あるいは楕円形を成している。なおこの断面形状は、筒状織物2内に挿入されたピコ用線状体3の本数等の影響を受ける。
一方、上記筒状織物2には、経糸と別に可撓性を有するピコ用線状体3を織り込み、そのピコ用線状体3を筒状織物2の内側で所定の長さの長浮と、筒状織物2の表側への短い浮を繰り返し、表側へ浮部分のピコ用線状体3の送り出し長を大きくしてループ31を形成している。
図2は、筒状織物2の経糸の一部に弾性糸を用いて織り込み、筒状織物2に伸縮性を付与した緩み止め紐1を示すものであり、図2の(イ)は緩み止め紐1の長さ方向に引っ張り力が作用していない状態、図2の(ロ)は(イ)において矢印方向に引っ張り力が作用した状態である。そして、引張り力が作用した場合には、図2の(ロ)に示すようにループ31の付け根間距離L1も引き伸ばされるのでループ31が曲率の小さい緩やかな山なり形状となる一方、緩めてフリーな状態にすると、図2の(イ)に示すように根間距離L1が狭まってループ31の形状が曲率の大きい鋭く突出した形状に変化する。これにより、アイレットに通す際には、紐を引き伸ばすことで抵抗が減り、挿通して引き伸ばしを止めた後はアイレット部での引っ掛かり効果が増すという機能が発揮される。
緩み止め紐1におけるループ31はアイレット部で擦れが生じるので、ピコ用線状体3は耐摩耗性に優れた材料が好ましく、合成繊維糸をリリアン編、製紐、あるいは撚糸など加工を施して複数本の糸を集合一体化しておくことで、耐摩耗性も優れ、また剛性も増すのでアイレットでの引っ掛かり抵抗が増す。
また上記ピコ用線状体3は、高融点ポリマーが芯で、低融点ポリマーが鞘の芯鞘構造の複合糸を含め、複合糸の低融点ポリマー成分により各糸条同士を接着一体化させておくと、ピコ用線状体3によるループ31の剛性が増し、アイレット部での抵抗が増す効果があり、これによって、より細いピコ用線状体3を用いることも可能となる。
また図3に示すように、上記筒状織物2の紐本体部11(ピコ用線状体3が筒状織物2の表面に長さ方向にわたって所定の間隔で連続的にループ状に突出している部位)の両側には、筒状織物2内側のピコ用線状体3を芯部32とする紐先部12を紐本体部11よりも細く形成することができ、これによってセルチップ加工を省略することができる。
[1]ループ突出部位
次に緩み止め紐1における各部位の組織構造について説明する。まずループ31の突出部位L3(図3参照)に関しては、図4(a)に示すように、筒状織物2を経糸21と緯糸22から成る袋組織とし、更にピコ用線状体3のループ31部分を長浮きさせることでループ31を形成している。また筒状織物2の緯糸22は、弾性糸21a及びその他の経糸21と交錯するように螺旋状に織り込んでいる。
またループ31が形成されていない非突出部位L4(図3参照)に関しては、図4(b)(c)に示すようにピコ用線状体3を芯組織とすることで筒状織物2内に隠れるようにしている。またこの非突出部位L4においては、図4(b)に示すように、ピコ用線状体3を部分的に緯糸と交錯させて、筒状織物2の内側に拘束している。特に筒状織物2に複数本のピコ用線状体3を織り込む場合には、複数本のピコ用線状体3・3同士を、筒状織物の2内部で緯糸によって縛り付けておくことが好ましく、これによってピコ用線状体3が摩擦でずれてループ31の形状が崩れるという現象を防ぐことが出来る。
また緩み止め紐1の紐先部12(図3参照)に関しては、図4(d)に示すように、経糸の一部として織り込まれた弾性糸21aを、緯糸22と絡まない状態で筒状織物2の内側にピコ用線状体3と並行に配置することで、紐先部12をより細く形成することができる。
次に上記緩み止め紐1の製造方法について説明する。まず製造時においては、図5に示すように、ループ31の突出が筒状織物の所定の長さ間で連続している紐本体領域L5と、ループ31の突出がなく紐本体領域L5よりも剛性の高い紐先領域L6とを交互に形成する。特に紐先領域L6の長さは10~80mmであることが好ましく、紐本体領域L5の長さは用途により適宜選択すれば良く、例えば靴紐においては通常0.4~3m程度の長さの範囲である。
本実施形態に従いニードル織機を用いて図1に示すように筒状織物の外周の対称位置に2つのループを所定の間隔で設けた外観で、[表1]に示す製織、熱処理の基本条件でピコ用線状体3に直径1.5mmのゴム紐を使用し、ループ間のピッチを7mm、各ループ形状を付け根間距離2mm、高さ1.5mmとして実施例1の緩み止め紐を得た。
実施例1と同じ基本条件(表1)で、ピコ用線状体3に直径2.0mmのゴム紐を使用し、ループ間のピッチを7mm、各ループ形状は付け根間距離3mm、高さ2.5mmとして実施例2の緩み止め紐を得た。
実施例1と同じ基本条件(表1)で、ピコ用線状体3に直径2.0mmリリアン編を使用し、ループ間のピッチが6mm、各ループ形状は付け根間距離が2mm、高さが2.5mmとして実施例3の緩み止め紐を得た。
本実施形態に従いニードル織機を用いて図1に示すように筒状織物の外周の対称位置に2つのループを所定の間隔で設けた外観で、[表2]に示す製織、熱処理の基本条件でピコ用線状体3に直径1.0mmの熱融着性繊維を使用し、ループ間のピッチを6mm、各ループ形状を付け根間距離2mm、高さ2.0mmとして実施例4の緩み止め紐を得た。また、熱融着性繊維は熱処理により強固に接着していた。
本実施形態に従いニードル織機を用いて図1に示すように筒状織物の外周の対称位置に2つのループを所定の間隔で設けた外観で、[表3]に示す製織、熱処理の基本条件でピコ用線状体3に直径1.5mmの熱融着性繊維を使用し、ループ間のピッチを9mm、各ループ形状を付け根間距離1mm、高さ2.0mmとして実施例5の緩み止め紐を得た。また、熱融着性繊維は熱処理により強固に接着していた。
11 紐本体部
12 紐先部
2 筒状織物
21 経糸
21a 弾性糸
22 緯糸
3 ピコ用線状体
31 ループ
32 芯部
C 切断部位
L1 付け根間距離
L2 ピッチ
L3 突出部位
L4 非突出部位
L5 紐本体領域
L6 紐先領域
Claims (10)
- 筒状織物に1本または複数本のピコ用線状体が経糸方向に織り込まれ、該ピコ用線状体が筒状織物の長さ方向において所定の間隔で筒状織物の表面上にループ状に突出していることを特徴とする緩み止め紐。
- 前記筒状織物が、経糸の一部に弾性糸を含む経糸方向に伸縮性を有する組織で構成されると共に、ピコ用線状体に可撓性を有する紐糸材が使用されて、当該ピコ用線状体によって形成されたループが、筒状織物の伸張時には曲率の小さい緩やかな山なり形状に、筒状織物の弛緩時には曲率の大きい鋭く突出した形状に変化することを特徴とする請求項1記載の緩み止め紐。
- 前記ピコ用線状体に、単体の直径が1~3mmのエラストマー製の紐材が使用されていることを特徴とする請求項1または2に記載の緩み止め紐。
- 前記ピコ用線状体に、複数本の糸を集合一体化させた見掛け直径1~3mmの紐材が使用されていることを特徴とする請求項1または2に記載の緩み止め紐。
- 前記筒状織物に複数本のピコ用線状体が織り込まれると共に、これら複数本のピコ用線状体同士が、非突出部位において筒状織物の内部で緯糸によって縛り付けられていることを特徴とする請求項1~4の何れか一つに記載の緩み止め紐。
- 筒状織物の表面に突出するループ間のピッチが5~50mmで、各ループ形状は付け根間距離が2~10mm、高さが1~7mmであることを特徴とする請求項1~5の何れか一つに記載の緩み止め紐。
- 前記ピコ用線状体に、融点が120℃以上の熱融着性繊維から成る紐材が使用されると共に、当該ピコ用線状体と筒状織物の緯糸や経糸とが筒状織物内で熱融着されていることを特徴とする請求項1~6の何れか一つに記載の緩み止め紐。
- 前記筒状織物に織り込まれた複数本のピコ用線状体同士が、筒状織物内で熱融着されていることを特徴とする請求項7記載の緩み止め紐。
- 筒状織物の長さ方向においてピコ用線状体が筒状織物の表面に所定の間隔で連続的にループ状に突出する紐本体部の両側に、筒状織物内側のピコ用線状体を芯部とする紐先部が紐本体部よりも細く形成されていることを特徴とする請求項1~8の何れか一つに記載の緩み止め紐。
- 前記紐先部において、経糸の一部として織り込まれた弾性糸が、緯糸と絡まない状態で筒状織物の内側にピコ用線状体と並行に配置されていることを特徴とする請求項9記載の緩み止め紐。
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