WO2017169923A1 - 丸編管状構造体、その製造方法及びその製造装置 - Google Patents

丸編管状構造体、その製造方法及びその製造装置 Download PDF

Info

Publication number
WO2017169923A1
WO2017169923A1 PCT/JP2017/010997 JP2017010997W WO2017169923A1 WO 2017169923 A1 WO2017169923 A1 WO 2017169923A1 JP 2017010997 W JP2017010997 W JP 2017010997W WO 2017169923 A1 WO2017169923 A1 WO 2017169923A1
Authority
WO
WIPO (PCT)
Prior art keywords
circular knitted
yarn
tubular structure
knitted fabric
circular
Prior art date
Application number
PCT/JP2017/010997
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
博之 大川
和史 末岐
河端　秀樹
Original Assignee
株式会社オオカワニット
東洋紡Ｓｔｃ株式会社
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
Application filed by 株式会社オオカワニット, 東洋紡Ｓｔｃ株式会社 filed Critical 株式会社オオカワニット
Priority to US16/088,705 priority Critical patent/US20210002799A1/en
Priority to CN201780021822.XA priority patent/CN108884611B/zh
Publication of WO2017169923A1 publication Critical patent/WO2017169923A1/ja

Links

Images

Classifications

    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04B—KNITTING
    • D04B1/00—Weft knitting processes for the production of fabrics or articles not dependent on the use of particular machines; Fabrics or articles defined by such processes
    • D04B1/22—Weft knitting processes for the production of fabrics or articles not dependent on the use of particular machines; Fabrics or articles defined by such processes specially adapted for knitting goods of particular configuration
    • D04B1/225—Elongated tubular articles of small diameter, e.g. coverings or reinforcements for cables or hoses
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04B—KNITTING
    • D04B1/00—Weft knitting processes for the production of fabrics or articles not dependent on the use of particular machines; Fabrics or articles defined by such processes
    • D04B1/14—Other fabrics or articles characterised primarily by the use of particular thread materials
    • D04B1/16—Other fabrics or articles characterised primarily by the use of particular thread materials synthetic threads
    • 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
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06H—MARKING, INSPECTING, SEAMING OR SEVERING TEXTILE MATERIALS
    • D06H7/00—Apparatus or processes for cutting, or otherwise severing, specially adapted for the cutting, or otherwise severing, of textile materials
    • D06H7/04—Apparatus or processes for cutting, or otherwise severing, specially adapted for the cutting, or otherwise severing, of textile materials longitudinally
    • D06H7/08—Apparatus or processes for cutting, or otherwise severing, specially adapted for the cutting, or otherwise severing, of textile materials longitudinally for cutting tubular fabric longitudinally
    • 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
    • D10B2321/022—Fibres made from polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds polyolefins polypropylene
    • 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
    • D10B2505/12—Vehicles

Definitions

  • the present invention relates to a tubular structure formed of a circular knitted fabric and a method for manufacturing the same, and more particularly to a sleeve for covering and protecting a cable such as an electric wire or an optical fiber cable arranged in a vehicle that vibrates when driven by an automobile or the like.
  • the present invention relates to a suitable circular knitted tubular structure, a manufacturing method thereof, and a manufacturing apparatus thereof.
  • a corrugated tube having a cut in the length direction as shown in Patent Document 1 and an opening that opens and closes in the circumferential direction has been adopted.
  • a protective sleeve formed by braid, warp knitting, or ⁇ knitting is known, and a protective sleeve formed by knit knitting as shown in Patent Document 2 below is also known.
  • a sound absorbing protective sleeve made of a woven fabric as shown in Patent Document 3 has also been proposed.
  • the corrugated tube shown in Patent Document 1 has a certain amount of stretchability and flexibility because it has a bellows shape, but is manufactured from a hard synthetic resin in order to maintain durability. Therefore, the actual situation is that sufficient stretchability and flexibility cannot be obtained.
  • the cable housed inside and the inner surface of the corrugated tube collide with each other, generating an audible noise and causing damage to the cable.
  • the cable must be accommodated in the corrugated tube after covering the cable with a soft cloth or the like in advance or by adhering a cushioning material to the inner surface of the corrugated tube.
  • the corrugated tube is hard, there is a possibility that an abnormal noise is generated due to a collision between the corrugated tube and a surrounding object on which the corrugated tube is disposed.
  • the diameter of the cylindrical knitted fabric is determined by the cylinder diameter of the knitting machine. Although it is possible to knit continuously, in order to produce various types of cylindrical knitted fabrics with different diameters, they must be replaced with cylinders with different diameters, and therefore the number of knitting machines according to the type of diameter And a cylinder are required, so that the equipment cost for that is required, and the manufacturing cost is high. Further, since this cover has openings only at both ends of the tubular knitted fabric, the cover cannot be covered on the wiring cord after the wiring cord is connected to the apparatus.
  • the acoustic absorption protection sleeve shown in Patent Document 3 is made of woven fabric, it has a small thickness and is not flexible or stretchable. Therefore, when the sleeve is bent, it can follow the degree of bending. There was a problem that bending occurred and the internal wiring was locally pressed.
  • This sleeve is intended to reduce acoustic vibrations, but has a limited ability to absorb vibrations because it is a thin and inflexible fabric.
  • the melt-cut portion becomes hard when heat-cutting to prevent fraying. It could not be used because it was easy to damage the wires to be inserted and those that were in contact from the outside.
  • the present invention was created in view of the current state of the prior art, and its purpose is that the manufacturing cost is low, the flexibility is high, and the flexibility of bending is high.
  • the present invention provides a circular knitted tubular structure useful as a sleeve for covering and protecting cables such as electric wires and optical fiber cables, a manufacturing method thereof, and a manufacturing apparatus thereof.
  • the present inventors have knitted all the yarns constituting the circular knitted fabric in the wale (width) direction, and only the loops are chained in the course direction. Since the yarn is not arranged in a straight line in the (direction), it is difficult to fray when the knitted fabric is cut in the course (length) direction, making the circular knitted fabric the circumference of the desired tubular structure.
  • the width of the tube is adjusted to the width and cut in the course direction with a blade, etc., and the side edge of the tubular structure is not frayed by making the side edge of the sleeve with this cut surface intact. I found.
  • the present inventors have made heat shrinkage on the back and front of the knitted fabric (corresponding to the inside and outside of the tubular structure) in order to make the narrow tape-shaped knitted fabric cut in the course direction into a tubular structure.
  • the thread on the back side was shrunk from the front side thread to devise a tubular structure having a beautiful cylindrical appearance.
  • the present inventors maintain a fine tubular structure for the above-mentioned c during the normal time, and have a high-definition yarn on the inner side of the tube in order to have a restoring force against an external impact or compression. Even if this thick fine yarn is left uncut, it is found that the cut portion of the thick fine yarn does not appear on the surface of the knitted fabric, and it is possible to prevent the external contact portion from being damaged or caught. Invented.
  • the circular knitted tubular structure according to claim 1 of the present invention is composed of a circular knitted narrow tape whose length is the course direction, and the circular knitted thin tape has a cut edge in the length direction. It is characterized in that it is left and has an overlapping portion in a spiral tube shape in the width direction.
  • the circular knitted narrow tape is provided with a yarn constituting the surface.
  • the high-shrinkage yarn having higher heat shrinkage than the yarn comprises a circular knitted fabric arranged on the back surface, and the overlapping portion of the circular knitted thin tape is 1.3 to 2.5 turns of the spiral circumference It is characterized by this.
  • the yarn constituting the surface may include not only a yarn forming a loop but also a yarn exposed on the surface.
  • the circular knitted fabric in addition to the configuration of the circular knitted tubular structure according to claim 1 or 2, the circular knitted fabric is a single knit, and the high shrinkage yarn is It is inserted in the width direction.
  • the circular knitted fabric in addition to the configuration of the circular knitted tubular structure according to claim 1 or 2, the circular knitted fabric is a double knit, and the high shrinkage yarn Is arranged at least in a part of the backside structure.
  • the circular knitted tubular structure according to claim 5 of the present invention includes a yarn constituting the surface of the circular knitted fabric.
  • the difference in dry heat shrinkage between the high shrinkage yarn and the high shrinkage yarn is 3 to 80%.
  • a circular knitted tubular structure according to claim 6 of the present invention includes a monofilament having a single yarn fineness of 30 to 2400 dtex in addition to the configuration of the circular knitted tubular structure according to any one of claims 1 to 5.
  • the yarn including multifilaments having a single yarn fineness of 30 to 2400 dtex is arranged on the back surface of the circular knitted fabric.
  • the circular knitted tubular structure according to claim 7 of the present invention constitutes the surface of the circular knitted fabric in addition to the structure of the circular knitted tubular structure according to any one of claims 1 to 6.
  • the knit loop is composed of two or more loop lengths, and the ratio of the loop with the shortest loop length to the total loop per unit area is 20 to 75%, and the length of the loop with the shortest loop length The loop length is 20 to 80% of the length of the longest loop length.
  • the method for producing a circular knitted tubular structure according to claim 8 of the present invention uses a front yarn and a back yarn having a thermal shrinkage larger than that of the front yarn, and a front loop is formed by the front yarn using a circular knitting machine.
  • Forming and knitting a circular knitted fabric so that the back yarn is arranged on the back side of the front loop, and the knitted circular knitted fabric with the course direction as the length direction and an interval of 1-30 cm in the width direction Cut in the length direction of the knitted fabric to make a narrow tape, the length of the narrow tape is in the range of 0.8 to 1.3 times, and the circular opening is the entrance, spiral shape
  • One end of the narrow tape is passed through a dry heating furnace at 70 to 190 ° C.
  • a conical forming induction jig having an opening formed in a tapered shape as an outlet. Is formed in a spiral shape overlapping the other end, and the spiral overlap portion is 1.3 to 2.5 of the spiral circumference. It is characterized in that the starting material was prepared as minute become.
  • An apparatus for producing a circular knitted tubular structure according to claim 9 of the present invention comprises a heating furnace for heating a narrow tape made of circular knitted fabric, and a forming induction jig for molding the narrow tape.
  • the forming guide jig has a conical configuration in which a circular opening portion is an entrance and an opening portion formed in a spiral shape is an exit, and is formed from the entrance to the exit of the forming guide jig.
  • the narrow tape to be drawn is formed in a spiral shape with one end overlapped with the other end, and the spiral shape is fixed by heating with a heating furnace.
  • the narrow tape formed by cutting the circular knitted fabric in the length direction is unlikely to fray at the cut edge of the narrow tape, and thus the circular knitted tubular structure made from the narrow tape.
  • the tubular structure can be produced from a narrow tape obtained by cutting a circular knitted fabric knitted by a single circular knitting machine regardless of the cylinder diameter into an appropriate width, so that the manufacturing cost is low.
  • the circular knitted fabric itself has elasticity, so that even if it is formed into a circular knitted tubular structure, it has sufficient flexibility and is highly adaptable to bending.
  • the thin tape naturally forms a tubular structure by the heat shrinkage of the high shrinkage yarn having a high heat shrinkage rate
  • the narrow tape is a circular knitted fabric
  • the opening can be easily opened, and After the cable or the like is housed inside the tubular structure, it does not need to be particularly closed and self-closes due to the shrinking action of the high shrinkage yarn.
  • a circular knitted fabric since a circular knitted fabric is used, the inner and outer surfaces of the circular knitted tubular structure are soft when configured into a circular knitted tubular structure. Even if the outer surface of the circular knitted tubular structure collides with a surrounding structure or the like, there is an advantage that no abnormal noise is generated. Therefore, it is possible to provide a protective sleeve having a high utility value for covering and protecting a cable such as an electric wire or an optical fiber cable.
  • a conical shaping induction jig and a heating furnace having a circular opening portion as an inlet and an opening portion formed in a spiral shape as an outlet are used.
  • FIG. 3 is a structure diagram of the single knit shown in FIGS. 1 and 2. It is a fragmentary perspective view of the circular knitted tubular structure using the single knit which concerns on this invention. It is a fragmentary perspective view of the circular knitted tubular structure using the double knit concerning the present invention. It is an organization chart of the double knit concerning the present invention. It is a fragmentary perspective view of the circular knitted tubular structure whose overlap part is less than 1.3 rounds.
  • FIG. 3 is a structure diagram of a single knit circular knitted fabric forming the circular knitted tubular structure A.
  • the single circular knitted fabric has a surface yarn 11 (a total fineness of 167 dtex, a knitted yarn made of 48 filaments of polyethylene terephthalate) forming a knit loop on the surface, and a heat shrinkage rate from the surface yarn 11.
  • a surface yarn 11 a total fineness of 167 dtex, a knitted yarn made of 48 filaments of polyethylene terephthalate
  • Has a large back yarn 12 high-shrinkage yarn, 670 dtex, polypropylene monofilament inlay yarn
  • the front yarn 11 is linked vertically and horizontally to form a knit loop, and the front loop is formed vertically and horizontally.
  • the front thread 11 and the back thread 12 are inserted in the lateral direction (1 tack for 3 welts).
  • FIG. 1 shows the surface of a narrow tape 10 made of a circular knitted fabric (the surface of the circular knitted fabric).
  • FIG. 2 shows the back surface of the narrow tape 10 made of circular knitted fabric (the back surface of the circular knitted fabric), and the back yarn 12 arranged on the back side of the front yarn 11 is partially visible.
  • FIG. 4 shows a state in which the tube is deformed.
  • the circular knitted tubular structure A is a state in which one end of the narrow tape 10 is overlapped with the other end to form a spiral shape.
  • the circular knitted tubular structure A when the overlapping portion is opened and an electric wire or cable is inserted therein, it is not necessary to manually close the opening of the overlapping portion. The closing function is exhibited, and the opening of the overlapping portion is naturally closed.
  • FIG. 5 is a tubular structure made of a double knitted circular knitted fabric.
  • FIG. 6 is a structural diagram of a double knit circular knitted fabric forming the circular knitted tubular structure 1A.
  • reference numeral 111 denotes a front yarn forming a front loop. That is, the front yarn 111 forms a front loop on the cylinder side by means of knitting.
  • 112a and 112b are back yarns forming a back loop, and the back yarn 112a is a high shrinkage yarn.
  • the double knitted circular knitted fabric includes an engagement yarn 113 that is entangled with the front yarn 111 and the back yarns 112a and 112b and connects the front yarn 111 and the back yarns 112a and 112b.
  • the front yarn 11 described in Example 1 is used as the front yarn 111 and the back yarn 112b. Further, the back yarn 12 described in Example 1 is used as the back yarn 112a.
  • As the engagement yarn 113 a processed yarn of 24 filaments of polyethylene terephthalate having a total fineness of 56 dtex is used.
  • the circular knitted tubular structure 1A is a double knitted circular knitted fabric in which a back loop is formed by the back yarn 112a and the back yarn 112b, and the other description is the same as the circular knitted tubular structure A, and therefore the description thereof. Is omitted.
  • the yarn that forms a knit loop on the surface of the knitted fabric and constitutes the surface of the knitted fabric is not particularly limited as long as it is soft and can give the knitted fabric a covering property.
  • the total fineness of the surface yarn is preferably 30 to 2400 dtex. More preferably, it is 100 to 1200 dtex. If it is lower than 30 dtex, the covering property tends to be lowered, and if it is 2400 dtex or more, the tubular structure becomes heavy.
  • the single yarn fineness of the surface yarn is preferably 0.3 to 20 dtex. More preferably, it is 0.5 to 10 dtex. If it is less than 0.3 dtex, the fibers tend to be caught on the fingers or on the protrusions. If it exceeds 20 dtex, the fiber end part that protrudes from the cut will be tinged when it hits the skin, or the surrounding objects will be easily damaged when rubbed against the surrounding objects.
  • the material of the surface yarn is not particularly limited, but synthetic fibers such as polyester, nylon and acrylic, natural fibers such as cotton, hemp and wool, regenerated fibers such as rayon, lyocell, cupra and acetate, semi-synthetic fibers, etc. Any organic fiber may be used. Either long or short fibers may be used. For example, when using a long fiber often used in cable applications, raw yarn may be used, or yarn processing such as false twisting, air entanglement, and covering may be performed. Alternatively, both short fibers and long fibers may be used to form a long / short composite spun yarn using a technique such as core spun yarn or fine spinning / twisting, or a covering yarn in which the spun yarn is coated with long fibers. A polyester multifilament raw yarn or false twisted yarn is preferably used as a relatively inexpensive and durable one.
  • High shrinkage thread (back thread)] For at least a part of the back side of the knitted fabric of the present invention, it is preferable to use a yarn having a high thermal shrinkage rate (hereinafter referred to as a high shrinkage yarn) as compared with the yarn constituting the surface.
  • the shrinkage difference between the front yarn and the high shrinkage yarn on the back surface is more preferably 3-80% of the high shrinkage yarn than the front yarn in the dry heat shrinkage test at 150 ° C. described later.
  • the shrinkage difference may be appropriately selected according to the diameter of the tubular structure to be made. If the tubular structure has a relatively small diameter of 2 to 20 mm, the relatively small shrinkage difference is set to 25 to 80%. And if it is a tubular structure exceeding 20 mm, it is preferable to set a shrinkage
  • the thick fine yarn includes at least a filament having a single yarn fineness of 30 to 2400 dtex. More preferably, it is 300 to 1200 dtex.
  • the thick fine yarn includes 1 to 5 filaments of the single yarn fineness. One is preferable. Of course, it may be a single filament monofilament thick yarn.
  • the thick fine yarn may be used on the front surface and / or the back surface.
  • a yarn having both high shrinkage and large fineness as the yarn to be arranged on the back surface.
  • high-shrinkage and thick yarn is arranged on the back side, when the tubular structure is formed by heating, the end of the cut thick fine yarn shrinks and retracts from the end of the knitted fabric to the back of the knitted fabric Therefore, there is an advantage that the end of the thick yarn is less likely to come into contact with the outside.
  • the material of the yarn (back yarn) arranged on the back surface is not particularly limited, but synthetic fiber filaments are preferably used.
  • polyester fibers mainly composed of polyethylene terephthalate, polybutylene terephthalate, polytrimethylene terephthalate, polyamide fibers such as nylon 6 and 66, polyolefin fibers such as polyethylene and polypropylene, polyparaphenylene benzoxazole fibers, aramid fibers, poly Arylate fiber or the like is used.
  • These fibers may be mixed and used by mixing, twisting, or conjugated yarn. Further, raw yarn (flat yarn) or processed yarn such as false twisting may be used. When used as a yarn having both high shrinkage and large fineness in the present invention, polypropylene fiber or polyester fiber can be preferably used.
  • the ratio of the high shrinkage yarn of the back yarn to the entire circular knitting is preferably 10 to 80% by weight. If the high shrinkage yarn is in this range, it becomes easy to form a cylindrical shape having a neatly spiral overlapping portion. More preferably, it is 25 to 60% by weight. More preferably, it is 30 to 60% by weight. When the amount is less than 10% by weight, the shape retaining property and elasticity of the tubular structure are lowered, making it difficult to achieve a sufficient protection effect for the cable. When it exceeds 80% by weight, the back yarn high shrinkage yarn becomes too thick and is easily caught.
  • knitted fabric As the knitted fabric used for the tubular structure of the present invention, a knitted fabric in which yarns are knitted while sequentially forming the knit loop in the lateral direction is used. Such knitted fabrics include circular knitting and flat knitting. When a flat knitted fabric is used, there is an advantage that it is not necessary to open it like a circular knitted fabric, but circular knitting is advantageous in terms of productivity.
  • the circular knitting is roughly classified into a single circular knitted fabric and a double circular knitted fabric, and both can be suitably used in the present invention.
  • a single circular knitted fabric is advantageous for forming a thin and thin tubular structure, and a double circular knitted fabric is preferred when it is desired to make a thick and elastic tubular structure.
  • the thickness of the knitted fabric is preferably 0.3 to 1.0 mm. If the thickness is less than 0.3 mm, the shape retaining property of the tubular structure tends to deteriorate. On the other hand, when the thickness exceeds 1.0 mm, the tubular structure is difficult to twist when the tubular structure is mounted, so that the workability is likely to deteriorate.
  • the basis weight of the single circular knitted fabric is preferably 70 to 230 g / m 2 . If the basis weight is less than 70 g / m 2, the shape retaining property tends to deteriorate. When the weight per unit area exceeds 230 g / m 2 , the weight of the tubular structure becomes heavy, which may be disadvantageous in a field that requires light weight, such as a car application.
  • the thickness of the knitted fabric is preferably 0.5 to 1.5 mm.
  • the basis weight of the double circular knitted fabric is preferably 100 to 370 g / m 2 . If the basis weight is less than 100 g / m 2, the shape retaining property tends to deteriorate.
  • the weight per unit area exceeds 370 g / m 2 , the weight of the tubular structure becomes heavy, which may be disadvantageous in a field that requires light weight, such as a car application.
  • the narrow tape 10 is rounded so as to form an overlap portion of 1.3 to 2.5 rounds when one end of the narrow tape 10 is spirally overlapped with the other end.
  • a knitted tubular structure A is created.
  • FIG. 7 in the case of a circular knitted tubular structure B having an overlap portion of less than 1.3 turns, as shown in FIG.
  • the overlapping portion is opened and the internal electric wires, cables, and the like are exposed from the circular knitted tubular structure B, which is not appropriate.
  • the overlapping portion is a circular knitted tubular structure C having more than 2.5 rounds, it becomes difficult to insert an electric wire or a cable into the circular knitted tubular structure C. Absent.
  • a tubular structure made of the circular knitted fabric of the present invention can be applied with a diameter of 2 to 50 mm. If the diameter is less than 2 mm, it becomes difficult to form a spiral tubular structure, and if the diameter exceeds 50 mm, the shape retaining property tends to deteriorate. This is because when the diameter is increased, the cable to be embedded is also heavier and heavier, making it difficult to obtain the protective effect required by the heavy cable.
  • the preferred weight per meter considering the diameter of the tubular structure is represented by basis weight (g / m) / diameter (mm). In the case of a single circular knitted fabric, this value is preferably 0.6 to 1.5. In the case of a double circular knitting, it is preferably 1.2 to 3.0. If the tubular structure is less than the lower limit of these ranges, shape retention tends to be reduced, and if it exceeds the upper limit, it may become too heavy.
  • the narrow tape of the present invention can be produced by cutting a circular knitted fabric in the length direction at intervals of 1 to 50 cm in the width direction.
  • a preferred width of the narrow tape is 2 to 30 cm. If it is less than 1 cm, it becomes difficult to form a beautiful tubular structure. If it is 50 cm or more, the shape retaining property of the tubular structure formed tends to deteriorate.
  • Any method can be used to cut the circular knitted fabric in the length direction as long as the cut surface does not harden or become easily caught. For example, use a blade such as a scissors or a knife. Or can be cut using ultrasonic waves, air current, water flow, or the like.
  • the side surface of the narrow tape of the present invention is used for use at the edge that has been cut by the method as described above. Thereby, the manufacturing process of a tubular structure can be simplified and it can manufacture efficiently and cheaply.
  • the state of being cut without performing the fraying prevention process is referred to as “keep cutting”.
  • a primary heat treatment at a low temperature of, for example, less than 150 ° C. and shape the flat knitted fabric so that it does not curl when no load is applied.
  • This low-temperature heat treatment is for improving workability when cutting into a narrow tape in the next step, and is not always necessary, but is an effective method particularly in the case of a single circular knitted fabric. That is, when the circular knitted fabric is opened, the circular knitted fabric is easily curled or skewed. By doing so, there is an advantage that the circular knitted fabric can be easily and neatly cut to easily produce a narrow tape.
  • the heating method is dry heat heating using convection of heated air with a hot air dryer, etc., wet heat heating using a steamer, etc., contact heating with high temperature metal or heat medium, wet infrared radiation, electromagnetic wave heating such as microwaves Anything that can be used for heating the fibers such as can be used, or they may be used in combination.
  • a method using a hot air dryer or contact heating is preferable.
  • the running temperature of the dryer may be set to 50 to 210 ° C.
  • the temperature is preferably 70 to 190 ° C. Since the narrow tape can be elongated in the length direction, an apparatus that can be continuously processed by providing an inlet and an outlet in the heating facility is preferably used in terms of productivity improvement.
  • the width of the narrow tape shrinks when heated.
  • the width of the narrow tape that is obtained by unfolding the spiral tubular structure after heating is flatter than the width of the narrow tape before heating, and the width of the narrow tape after heating is the same as that before heating. Is about two-thirds of the width.
  • FIG. 11 is a schematic view showing an example of a manufacturing apparatus for a circular knitted tubular structure
  • the manufacturing apparatus D for the circular knitted tubular structure has a heating furnace 30 for heating the narrow tape 10 made of circular knitted fabric.
  • a shaping guide jig 20 for shaping the narrow tape 10 in a spiral shape The narrow induction tape 20 shapes the narrow tape 10 in a spiral shape with one end overlapped with the other end, and when the narrow tape 10 passes through the formation induction jig 20, the heating furnace 30.
  • the spiral yarn of the circular knitted tubular structure A shaped into the spiral shape is maintained by the heat shrinkage of the back yarn of the high shrinkage yarn that is heated by the thin tape 10 and is arranged on the narrow tape 10, and the spiral shape is maintained.
  • the circular knitted tubular structures A and 1A shown in FIGS. 4 and 5 maintaining the form are completed.
  • the shaping guide jig 20 is formed by winding a flat plate into a conical shape, and the opening on the entrance side where the narrow tape 10 is inserted has a narrow tape 10.
  • the opening portion on the outlet side is an opening portion 22 formed in a spiral shape because the narrow tape 10 is deformed in a spiral shape. Is. Then, in the opening portion 21 on the inlet side of the forming guide jig 20, the front side of the narrow tape 10 becomes the spiral inner peripheral surface side, and a part of the narrow tape 10 is spiral in the opening portion 21.
  • the flat narrow tape 10 is forced to overlap one end with the other end by inserting it so as to be sandwiched between the overlapping portions and pulling it out from the tapered spiral opening 22 on the outlet side. Shaped into a spiral. Note that the circular shape of the opening 21 on the inlet side is not limited to a perfect circle, and includes an ellipse.
  • the range in which the narrow tape 10 is 0.8 to 1.3 times longer means that the narrow tape 10 is passed through the shaping guide jig 20 when the narrow tape 10 is passed through the shaping guide jig 20. It is a range of numerical values when the thin tape 10 is pulled out from the shaping guide jig 20 and expanded from the numerical values when the narrow tape 10 is contracted by being pushed into the tape.
  • Single yarn fineness dtex total fineness / number of filaments
  • ⁇ Yarn dry heat shrinkage%> A load of 1/27 g / dtex is applied to the sample, and its length L1 (mm) is measured. The load is then removed and the sample is placed in a dryer and dried at 160 ° C. for 30 minutes. After drying, it is cooled at room temperature, a load of 1/30 g / dtex is applied again, and its length L2 (mm) is measured. Substituting the above L1 and L2 into the following equation, the 160 ° C. dry heat shrinkage rate is calculated. In addition, let the average value of the measurement frequency
  • count of 5 times be the measured value. Dry heat shrinkage% [(L1-L2) / L1] ⁇ 100
  • ⁇ Thickness> The thickness was measured by the thickness based on JIS L1096 8.4B method.
  • the fabric basis weight was measured by mass per unit area based on JIS L1096 8.3B method.
  • the mass per unit length of the tubular structure was measured by measuring the mass of the tubular structure 1 m in length.
  • ⁇ Ease of fraying the cutting edge of the tubular structure The ease of fraying of the cutting edge (the side of the tubular structure) in the longitudinal direction of the tubular structure is measured using the JIS L1096 8.19.4 D method (accelerator type method), which is a method for measuring wear strength.
  • the tubular structure was cut to a length of 10 cm in length and the cut edge was secured by gluing the entire edge, leaving 5 mm from the cut edge in the length direction so that it would not fray during the test. .
  • an adhesive is not attached to the cutting edge (side of the tubular structure) for measuring the ease of fraying.
  • an iron was applied at a temperature at which the fiber material constituting the tubular structure did not melt, and the spiral structure was extended to flatten the tubular structure to prepare a measurement sample.
  • FIG. 13 shows an accelerator rotor type wear tester E for confirming the ease of fraying.
  • a represents a metal rotating blade
  • b represents a cylinder
  • c represents a rubber film
  • d represents a glass plate
  • e represents a lid.
  • abrasive paper is affixed to the inner peripheral surface of the cylinder b in the testing machine E, but in this testing machine, an uneven rubber film c shown in FIGS. 15 and 16 was used instead of the abrasive paper. .
  • the rubber film c has the same length as the inner circumference length of 43.5 cm of the cylinder b, the same width as the depth of the cylinder of 7.0 cm, and a thickness of 0.35 cm (the step height h of the uneven portion is 0.2 cm).
  • a rubber material having a hardness of 82 to 83 A and a mass of 125 g to ⁇ 1 g.
  • the measurement sample is sandwiched under the rotating blade a, the rotating blade a is rotated at a rotation speed of 2000 times / minute for 2 minutes, and the measurement sample is floated and rotated in the cylinder, and then the measurement sample is measured. Is removed from the cylinder and the number of yarns that have frayed from the longitudinal cutting edge is counted.
  • the tubular structure for evaluation is cut to a target inner circumferential length + sewing allowance of 10 mm.
  • the evaluation ring had a diameter mm (circumferential length mm) of the following six types. The diameter and circumferential length are based on the inner diameter of the ring. 100 (314), 75 (236), 50 (53), 30 (94), 15 (47), 10 (31)
  • Evaluation criteria 5 to 3 were acceptable, and evaluation criteria 2 and 1 were unacceptable.
  • 5 An almost perfect circle, showing no wrinkles or folds.
  • 4 An almost perfect circle is shown, but wrinkles at one or more inner peripheral surfaces of the circle are observed.
  • 3 Many wrinkles are recognized on the inner peripheral surface of the circle.
  • 2 The circular shape is broken, and several folds are observed on the inner peripheral surface. 1: Many square folds of V-shape are generated and deformed into a polygonal shape.
  • the density of the resulting knitted fabric was 48 / inch course, 26 / inch wale, the thickness of the knitted fabric was 1.2 mm, and the basis weight was 250 g / m 2.
  • This knitted fabric was cut in the same manner as in Example 1 to obtain a narrow tape having a width of 8 cm.
  • This narrow tape was 70% polyethylene terephthalate and 30% polypropylene.
  • the narrow tape is heat-molded in a hot air dryer at a set temperature of 170 ° C. for 2 minutes, whereby the width of the narrow tape is contracted, and the back thread is contracted, A tubular structure having a diameter of 1 cm and an overlapped portion of 1.7 was produced.
  • a 167 dtex 48 filament polyethylene terephthalate fiber 1 heater false twisted yarn (dry heat shrinkage 3%, black original yarn) was warped and used.
  • weaving fabrics with a rapier loom made by Ishikawa Seisakusho with a 3/1 right twill structure with a raw machine density of 38 warps / 2.5 cm, 25 wefts / 2.5 cm, and a weaving width of 100 cm. did.
  • This woven fabric was heat cut along the warp of the woven fabric using a flat type soldering iron and applied with a ruler to form a narrow tape having a width of 8 cm in which both sides were frayed by heat cut.
  • This thin tape was heat treated under the same operation and processing conditions using the above-described forming induction jig to form a tubular structure.
  • the resulting tubular structure had a diameter of 1 cm and an overlap portion of 1.7.
  • the circular knitted fabric itself is stretchable, and the resulting tubular structure has sufficient flexibility, so that the woven tubular Compared to the structure, it is very adaptable to bending.
  • the side cut portion of the tubular structure in Example 1 ((a) in the figure) is also used in the friction test based on the above-mentioned ⁇ ease of fraying of the cutting edge of the tubular structure>. There was no fraying at all.
  • the end face of the heat cut woven fabric seen in Comparative Example 1 ((b) in the figure) is hard and feels caught by the hand, and in the friction test, as shown in FIG. 16, strong fraying occurs. It was.
  • Example 1 the tubular structures of Example 1 and Comparative Example 1
  • the results of the flexibility evaluation with respect to bending are shown in Table 1, FIG. 17 and FIG.
  • the inner diameters of 15 mm and 10 mm were excluded from the evaluation targets because they were already 30 mm evaluation bodies and angular.
  • FIG. 17 shows the horizontal A row showing the case of Example 1 with an inner diameter of 100 mm (A1 in the figure), 75 mm (A2 in the figure), 50 mm (A3 in the figure), 30 mm (A4 in the figure).
  • 15 mm (A5 in the figure), 10 mm (A6 in the figure) is a photograph showing the change of the shape when changed in six stages
  • the inner diameter is 100 mm (B1 in the figure), 75 mm (B2 in the figure), 50 mm (B3 in the figure), and 30 mm (B4 in the figure).
  • FIG. 18 is an enlarged photograph of the inner diameter of 75 mm and 50 mm in Comparative Example 1 in FIG.
  • the inner diameter is 75 mm ( In the case of B2) in the figure, many wrinkles are recognized on the inner circumferential surface of the circle as indicated by an arrow, and in the case of 50 mm (B3 in the figure), on the inner circumferential surface as indicated by an arrow. Several wrinkles and folds are recognized, and the circle is broken.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Knitting Of Fabric (AREA)
  • Treatment Of Fiber Materials (AREA)
PCT/JP2017/010997 2016-04-01 2017-03-17 丸編管状構造体、その製造方法及びその製造装置 WO2017169923A1 (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US16/088,705 US20210002799A1 (en) 2016-04-01 2017-03-17 Circular knitted tubular structure, and manufacturing method and manufacturing device of the same
CN201780021822.XA CN108884611B (zh) 2016-04-01 2017-03-17 圆型针织管状构造体及其制造方法、以及其制造装置

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2016-074272 2016-04-01
JP2016074272A JP6607819B2 (ja) 2016-04-01 2016-04-01 丸編管状構造体、その製造方法及びその製造装置

Publications (1)

Publication Number Publication Date
WO2017169923A1 true WO2017169923A1 (ja) 2017-10-05

Family

ID=59964345

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2017/010997 WO2017169923A1 (ja) 2016-04-01 2017-03-17 丸編管状構造体、その製造方法及びその製造装置

Country Status (4)

Country Link
US (1) US20210002799A1 (zh)
JP (1) JP6607819B2 (zh)
CN (1) CN108884611B (zh)
WO (1) WO2017169923A1 (zh)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10415162B2 (en) * 2016-08-24 2019-09-17 Federal-Mogul Powertrain Llc Impact resistant, shrinkable knitted tubular sleeve and method of construction thereof
US11305508B2 (en) * 2018-01-10 2022-04-19 Federal-Mogul Powertrain Llc Impact resistant, tubular textile sleeve and method of construction thereof
KR20210055180A (ko) 2019-11-07 2021-05-17 엘에스전선 주식회사 자기말림 차폐튜브
CN113724923B (zh) * 2021-07-28 2023-10-20 东阳市金凰线业有限公司 一种线结构及其制造方法

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0421119U (zh) * 1990-06-11 1992-02-21
US20020162364A1 (en) * 2001-03-02 2002-11-07 Relats, S.A. Utilisation of a warp knitting machine for the manufacturing of open or closed tubes for protecting cables, conduits and the like, and protecting tube manufactured with said machine
JP2009522462A (ja) * 2005-12-29 2009-06-11 フェデラル−モーグル コーポレイション セルフカールする編んだスリーブおよびその製作方法
JP2012132107A (ja) * 2010-12-20 2012-07-12 Shima Seiki Mfg Ltd 立体編地の編成方法と立体編地及びパイプのカバー
JP2012192407A (ja) * 2012-05-25 2012-10-11 Mitsubishi Rayon Co Ltd 中空状多孔質膜用支持体、中空状多孔質膜およびそれらの製造方法
JP2012533693A (ja) * 2009-07-17 2012-12-27 フェデラル−モーグル パワートレイン インコーポレイテッド 三層ニット生地、それから形成された熱保護部材、およびその構成方法
JP2013123368A (ja) * 2006-03-29 2013-06-20 Federal-Mogul Corp ワイヤフィラメントを有するハイブリッド糸で作製された保護スリーブ、および構成の方法
JP2013224739A (ja) * 2006-05-01 2013-10-31 Federal Mogul Corp バサルト連続フィラメント断熱および耐火材料およびスリーブならびにその構成方法
JP2014524225A (ja) * 2011-06-09 2014-09-18 フェデラル−モーグル パワートレイン インコーポレイテッド 反射繊維スリーブおよびその製造方法

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8747582B2 (en) * 2008-09-05 2014-06-10 Federal-Mogul Powertrain, Inc. Self-wrapping textile sleeve with protective coating and method of construction thereof
US9307685B2 (en) * 2014-07-16 2016-04-05 Federal-Mogul Powertrain, Inc. Protective sleeve with bonded wire filaments and methods of construction thereof
US9863070B2 (en) * 2014-12-08 2018-01-09 Federal-Mogul Powertrain Llc Tubular protective sleeve with curl resistant knit ends and method of construction thereof

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0421119U (zh) * 1990-06-11 1992-02-21
US20020162364A1 (en) * 2001-03-02 2002-11-07 Relats, S.A. Utilisation of a warp knitting machine for the manufacturing of open or closed tubes for protecting cables, conduits and the like, and protecting tube manufactured with said machine
JP2009522462A (ja) * 2005-12-29 2009-06-11 フェデラル−モーグル コーポレイション セルフカールする編んだスリーブおよびその製作方法
JP2013123368A (ja) * 2006-03-29 2013-06-20 Federal-Mogul Corp ワイヤフィラメントを有するハイブリッド糸で作製された保護スリーブ、および構成の方法
JP2013224739A (ja) * 2006-05-01 2013-10-31 Federal Mogul Corp バサルト連続フィラメント断熱および耐火材料およびスリーブならびにその構成方法
JP2012533693A (ja) * 2009-07-17 2012-12-27 フェデラル−モーグル パワートレイン インコーポレイテッド 三層ニット生地、それから形成された熱保護部材、およびその構成方法
JP2012132107A (ja) * 2010-12-20 2012-07-12 Shima Seiki Mfg Ltd 立体編地の編成方法と立体編地及びパイプのカバー
JP2014524225A (ja) * 2011-06-09 2014-09-18 フェデラル−モーグル パワートレイン インコーポレイテッド 反射繊維スリーブおよびその製造方法
JP2012192407A (ja) * 2012-05-25 2012-10-11 Mitsubishi Rayon Co Ltd 中空状多孔質膜用支持体、中空状多孔質膜およびそれらの製造方法

Also Published As

Publication number Publication date
CN108884611A (zh) 2018-11-23
JP6607819B2 (ja) 2019-11-20
US20210002799A1 (en) 2021-01-07
CN108884611B (zh) 2020-09-08
JP2017186686A (ja) 2017-10-12

Similar Documents

Publication Publication Date Title
WO2017169923A1 (ja) 丸編管状構造体、その製造方法及びその製造装置
KR101386005B1 (ko) 자동-말림 편성 슬리브 및 제조 방법
ES2317936T3 (es) Manga con sujeciones integrales.
KR20090086264A (ko) 지지 부재를 가진 보호 슬리브 조립체 및 이 보호 슬리브 조립체의 제조방법
CN103210128B (zh) 织物和使用它的电气配线用包覆料
JP2000513072A (ja) 磨耗保護
HU224601B1 (hu) Lánckötő gépen előállított nyitott vagy zárt védőcső, kábelekhez vagy egyéb vezetékekhez
JP5509349B2 (ja) 弾性複合撚糸とその製造方法、並びに同弾性複合撚糸を使ったパイル繊維製品
CN114981493B (zh) 用于形成复合纱线的方法和系统
JP6014839B2 (ja) チューブ状カバー、およびチューブ状カバーをワイヤ収納に利用した自動車
MX2011005126A (es) Tubo de proteccion y procedimiento para su fabricacion.
JP6128720B1 (ja) 中綿シート
JP7046918B2 (ja) 経編地およびその製造方法
TWI785306B (zh) 開放式網狀紗羅織物、由其製成之袋及製造該紗羅織物之方法
JP7086677B2 (ja) ポリエステル芯鞘複合短繊維、該短繊維を含む紡績糸及び該短繊維を含む布帛
JP3226797B2 (ja) モワレ防止ソフト織物芯地
JP3142758B2 (ja) 織物芯地
JP6074632B1 (ja) 中綿シート及びその製造方法
JPS601414B2 (ja) 無撚紡績糸
JP4315494B2 (ja) パイル糸とクリンプ加工法
JP2023114906A (ja) 人工血管および人工血管の製造方法
JP2004143636A (ja) 装飾用レース又は装飾用テープ
JP2022104847A (ja) 複合糸、及びその糸を用いた織編物
OA20353A (en) Open mesh leno fabric, a bag made from it, and a method of making the leno fabric.
JP3819963B2 (ja) モワレ防止織物芯地

Legal Events

Date Code Title Description
NENP Non-entry into the national phase

Ref country code: DE

121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 17774464

Country of ref document: EP

Kind code of ref document: A1

122 Ep: pct application non-entry in european phase

Ref document number: 17774464

Country of ref document: EP

Kind code of ref document: A1