EP4528002A1 - Strickprodukt und herstellungsverfahren für das strickprodukt - Google Patents

Strickprodukt und herstellungsverfahren für das strickprodukt Download PDF

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Publication number
EP4528002A1
EP4528002A1 EP23807727.5A EP23807727A EP4528002A1 EP 4528002 A1 EP4528002 A1 EP 4528002A1 EP 23807727 A EP23807727 A EP 23807727A EP 4528002 A1 EP4528002 A1 EP 4528002A1
Authority
EP
European Patent Office
Prior art keywords
yarn
heat
knitted product
fusible
knitted
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
EP23807727.5A
Other languages
English (en)
French (fr)
Other versions
EP4528002A4 (de
Inventor
Tomoatsu YAMAO
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Avance International Co Ltd
Jp Avance Corp
Original Assignee
Avance International Co Ltd
Jp Avance Corp
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 Avance International Co Ltd, Jp Avance Corp filed Critical Avance International Co Ltd
Publication of EP4528002A1 publication Critical patent/EP4528002A1/de
Publication of EP4528002A4 publication Critical patent/EP4528002A4/de
Pending legal-status Critical Current

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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
    • D04B1/14—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
    • D06C7/02—Setting
    • 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
    • D10B2331/02—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products polyamides
    • 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
    • D10B2401/00—Physical properties
    • D10B2401/04—Heat-responsive characteristics
    • D10B2401/041—Heat-responsive characteristics thermoplastic; thermosetting

Definitions

  • the same ground yarn is used for the low stretching parts and the high stretching parts.
  • the low stretching parts contain a heat-fusible yarn, at least parts of which are thermally fused with each other.
  • an elastic yarn such as a polyurethane-based yarn or a polyether ester-based yarn, is used.
  • the heat-fusible yarn in the circular knitted fabric disclosed in PTL 1 is a fiber that has the properties of melting and fusing due to heat treatment with dry heat at 120°C for 1 minute, or due to heat treatment with wet heat at 110°C for 30 seconds.
  • a polyamide-based fiber, a polyester-based fiber, a polyurethane-based fiber, or other types of fiber are used.
  • a knit is formed by continuously forming loops, and thus has advantages of, for example, higher stretchability, higher flexibility, and higher heat retaining effect, compared with woven fabrics.
  • hydrophilic fiber may absorb moisture, thus thickening and shortening, leading to shrinkage of approximately 10%, for example.
  • the heat-fusible yarn in the circular knitted fabric disclosed in PTL 1 may be used for knitted products, such as sweaters or cardigans, in which a natural fiber yarn and/or a synthetic fiber yarn is used.
  • a natural fiber yarn and/or a synthetic fiber yarn is used.
  • An object of the present invention is to effectively prevent shrinkage and stretching of a ground yarn of a knitted product in which a natural fiber yarn and/or a synthetic fiber yarn is used, without compromising the feel of the knitted product and without using a large-scale heat treatment apparatus.
  • a knitted product according to a first aspect of the present invention is a knitted product in which a natural fiber yarn and/or a synthetic fiber yarn is used.
  • a heat-fusible yarn that melts at 105°C or less is fused with a whole or a part of a ground yarn.
  • the knitted product is formed by a flat knitting machine.
  • the heat-fusible yarn is a nylon heat-fusible yarn having a melting point of 75°C or more and 90°C or less.
  • fineness of the heat-fusible yarn is 30 deniers or more and 150 deniers or less.
  • a method for producing a knitted product according to a fifth aspect of the present invention includes: a first step in which, while a heat-fusible yarn that melts at 105°C or less is knitted into a whole or a part of a ground yarn that is a natural fiber yarn and/or a synthetic fiber yarn, a knitted product including the heat-fusible yarn in an unmelted state is produced by a flat knitting machine; and a second step in which the heat-fusible yarn in the knitted product that has undergone the first step is melted by a steam iron to cause the heat-fusible yarn to be fused with the ground yarn.
  • the heat-fusible yarn is a nylon heat-fusible yarn having a melting point of 75°C or more and 90°C or less.
  • the knitted product according to the present invention, and the knitted product produced by the method for producing a knitted product according to the present invention include a natural fiber yarn and/or a synthetic fiber yarn.
  • a heat-fusible yarn is fused with the whole or a part of the ground yarn, thereby preventing shrinkage and stretching of the ground yarn that is the natural fiber yarn and/or the synthetic fiber yarn.
  • a knitted product including the heat-fusible yarn in an unmelted state is produced by form-knitting with use of, for example, a flat knitting machine while knitting the heat-fusible yarn into the whole or a part of the ground yarn that is the natural fiber yarn and/or the synthetic fiber yarn, thereby reducing the amount of usage of yarn and cutting loss, and also efficiently producing the knitted product including the heat-fusible yarn in an unmelted state.
  • the heat-fusible yarn melts at 105°C or less. Accordingly, it is possible to cause, without using a large-scale heat treatment apparatus, the heat-fusible yarn to melt and to be fused with the ground yarn by performing efficient work with a steam iron, i.e., by moving the steam iron in such a way as to steam a knitted product at desired portions at which the heat-fusible yarn is present. Therefore, there is no possibility of compromising the feel of the knitted product, and it is possible to achieve small lot and short cycle production that is suited to individualized and diversified needs of consumers.
  • a knitted product of the present invention includes a natural fiber yarn and/or a synthetic fiber yarn.
  • the knitted product is any one of a knitted product including only a natural fiber yarn, a knitted product including only a synthetic fiber yarn, or a knitted product including a blended yarn obtained by blending a natural fiber and a synthetic fiber at a predetermined mixing ratio.
  • the fineness of the yarn ranges from 1 yarn count to 100 yarn count.
  • a cotton yarn, a wool yarn, an animal hair yarn, or the like is used.
  • the synthetic fiber yarn an acrylic yarn, a polyester yarn, or the like is used.
  • the knitted product of the present invention includes general knitted products that are formed by a flat knitting machine, and may be, for example, clothing, such as sweaters, cardigans, dresses and skirts, bags, such as tote bags, handbags and backpacks, and add-on pads for clothing, such as shoulder pads and knee pads.
  • clothing such as sweaters, cardigans, dresses and skirts
  • bags such as tote bags, handbags and backpacks
  • add-on pads for clothing such as shoulder pads and knee pads.
  • any knitting stitch may be used for the knitted product of the present invention provided that the knitting stitch is for flat knitting, and a plain stitch, a rib stitch, a Milano rib stitch, a cardigan stitch, a seed stitch, a garter stitch (pearl stitch), a lace stitch, or other stitches may be used.
  • a heat-fusible yarn that melts at 105°C or less is fused with the whole or a part of a ground yarn that is the natural fiber yarn and/or the synthetic fiber yarn.
  • the heat-fusible yarn melts at 105°C or less, and is, for example, a nylon heat-fusible yarn having a melting point of 75°C or more and 90°C or less.
  • the fineness of the heat-fusible yarn is 30 deniers or more and 150 deniers or less, and the heat-fusible yarn is selected to obtain the desired feel of the knitted fabric in terms of the thickness and hardness.
  • the heat-fusible yarn is fused with the whole or a part of the ground yarn that is the natural fiber yarn and/or the synthetic fiber yarn. Accordingly, it is possible to prevent shrinkage and stretching of the ground yarn.
  • a natural fiber, which is the ground yarn, and the heat-fusible yarn in a desired balance it is possible to control the shrinkage ratio of the natural fiber.
  • the knitted product of the present invention is produced by a flat knitting machine that forms a shape according to pattern. That is, while a heat-fusible yarn that melts at 105°C or less is knitted into the whole or a part of the ground yarn that is the natural fiber yarn and/or the synthetic fiber yarn, a knitted product including the heat-fusible yarn in an unmelted state is produced by the flat knitting machine (first step).
  • the knitted product is produced by form-knitting with use of, for example, the flat knitting machine, thereby reducing the amount of usage of yarn and cutting loss, and also efficiently producing the knitted product including the heat-fusible yarn in an unmelted state.
  • a steam iron that emits high temperature water steam from holes on the bottom surface is used on the knitted product including the heat-fusible yarn in an unmelted state to melt the heat-fusible yarn so that the heat-fusible yarn is fused with the ground yarn (second step).
  • the heat-fusible yarn melts at 105°C or less. Accordingly, it is possible to cause, without using a large-scale heat treatment apparatus, the heat-fusible yarn to melt and to be fused with the ground yarn by, for example, performing efficient work with an electric steam iron with 1000W to 1500W, i.e., by moving the steam iron in such a way as to steam the knitted product at desired portions at which the heat-fusible yarn is present.
  • a nylon heat-fusible yarn having a melting point of 75°C or more and 90°C or less is used for the heat-fusible yarn that melts at 105°C or less.
  • nylon heat-fusible yarn having a melting point of 75°C or more and 90°C or less for example, "nylon heat-fusible yarn” (melting point 80°C) made by CHANGZHOU CITY LINGXIAN TEXTILE EQUIPMENT CO., LTD., or "heat-fusible yarn 78T made in Japan” (melting point 85°C) made by Mitsubishi Chemical Corporation may be used.
  • a ground yarn and a heat-fusible yarn are interweaved in the entire part for a plain stitch, a rib stitch, a cardigan stitch, or the like. It is desirable to use pleating in which two different yarns are pulled through a loop at the same time to create stitches.
  • the ground yarn and the heat-fusible yarn are directed to the head of the flat knitting machine from individual yarn insertion holes, and are brought together at the head.
  • (1) shows a ground yarn that forms loops with latch needles in front needle beds and latch needles in rear needle beds (a ground yarn for brioche stitch (rib stitch))
  • (2) shows a ground yarn that forms loops only with latch needles in rear needle beds
  • (3) shows a ground yarn that forms loops only with latch needles in front needle beds.
  • a heat-fusible yarn is arranged parallel to (a heat-fusible yarn is knitted into) the ground yarn shown in (2) and the ground yarn shown in (3).
  • (1) shows a ground yarn for a tuck stitch
  • (2) shows a ground yarn for brioche stitch.
  • a heat-fusible yarn is arranged parallel to (a heat-fusible yarn is knitted into) the ground yarn shown in (1).
  • a heat-fusible yarn is arranged parallel to (a heat-fusible yarn is knitted into) the ground yarn for a brioche stitch shown in (1).
  • a heat-fusible yarn is arranged parallel to (a heat-fusible yarn is knitted into) the ground yarn for a brioche stitch shown in (2).
  • the degree of tension (the width of shrinkage and stretching) of the knitted product is adjusted as described below, for example, by changing the method for interweaving a heat-fusible yarn with a ground yarn in a course that is a row of loops arranged in the lateral direction of knitted fabric.
  • a ground yarn is knitted together with a heat-fusible yarn in all courses.
  • a ground yarn is knitted together with a heat-fusible yarn in three courses, and only the ground yarn is then knitted in two courses and, thereafter, these procedures are repeated.
  • a ground yarn is knitted together with a heat-fusible yarn in one course, and only the ground yarn is then knitted in one course and, thereafter, these procedures are repeated.
  • a ground yarn is knitted together with a heat-fusible yarn in one course, and only the ground yarn is then knitted in nine courses and, thereafter, these procedures are repeated.
  • a sweater (100% cotton with a yarn count of 2/100 being used as a ground yarn) with a Milano rib stitch is used as the evaluation target.
  • the sweater was produced with use of a flat knitting machine by arranging "heat-fusible yarn 78T made in Japan" (melting point 85°C) with 50 deniers made by Mitsubishi Chemical Corporation parallel only to a ground yarn for a brioche stitch (1 ⁇ 1 rib) shown in (1) in the stitch diagram of a Milano rib stitch shown in FIG. 1 , and the heat-fusible yarn was melted by a steam iron to be fused with the ground yarn.
  • the sweater including no heat-fusible yarn was used as Comparison Example.
  • Example in both of a case where the washing and drying were performed once on the sweater and a case where the washing and drying were performed on the sweater five times, the body length, the body width, the sleeve length, and the hem width decreased.
  • the amount of shrinkage in body length shows the largest amount of shrinkage, that is, 1.7%.
  • This amount of shrinkage in body length (1.7%) is approximately 57% of the amount of shrinkage in body length (3.0%) of the sweater of Comparison Example on which the washing and drying were performed once.
  • the amount of shrinkage in body length shows the largest amount of shrinkage, that is, 3.7%.
  • This amount of shrinkage in body length (3.7%) is approximately 59% of the amount of shrinkage in body length (6.3%) of the sweater of Comparison Example on which the washing and drying were performed five times.
  • the sweater of Example has extremely higher shape stability after repeated washing and drying, and has a significantly lower maximum amount of shrinkage compared with the sweater of Comparison Example.
  • the knitted product according to the embodiment of the present invention described above includes a natural fiber yarn and/or a synthetic fiber yarn.
  • the heat-fusible yarn is fused with the whole or a part of the ground yarn that is the natural fiber yarn and/or the synthetic fiber yarn. Accordingly, it is possible to prevent shrinkage and stretching of the ground yarn.
  • a knitted product including the heat-fusible yarn in an unmelted state is produced by form-knitting with use of, for example, a flat knitting machine while knitting the heat-fusible yarn into the whole or a part of the ground yarn, thereby reducing the amount of usage of yarn and cutting loss, and also efficiently producing the knitted product including the heat-fusible yarn in an unmelted state.
  • the heat-fusible yarn melts at 105°C or less. Accordingly, it is possible to cause, without using a large-scale heat treatment apparatus, the heat-fusible yarn to melt and to be fused with the ground yarn by performing efficient work with a steam iron, i.e., by moving the steam iron in such a way as to steam the knitted product at desired portions at which the heat-fusible yarn is present. Therefore, there is no possibility of compromising the feel of the knitted product, and it is possible to achieve small lot and short cycle production that is suited to individualized and diversified needs of consumers.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Knitting Of Fabric (AREA)
EP23807727.5A 2022-05-19 2023-05-19 Strickprodukt und herstellungsverfahren für das strickprodukt Pending EP4528002A4 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2022082074 2022-05-19
PCT/JP2023/018819 WO2023224126A1 (ja) 2022-05-19 2023-05-19 ニット製品、及びニット製品の製造方法

Publications (2)

Publication Number Publication Date
EP4528002A1 true EP4528002A1 (de) 2025-03-26
EP4528002A4 EP4528002A4 (de) 2025-09-03

Family

ID=88835274

Family Applications (1)

Application Number Title Priority Date Filing Date
EP23807727.5A Pending EP4528002A4 (de) 2022-05-19 2023-05-19 Strickprodukt und herstellungsverfahren für das strickprodukt

Country Status (5)

Country Link
US (1) US20250257505A1 (de)
EP (1) EP4528002A4 (de)
JP (1) JP7648064B2 (de)
CN (1) CN119497771A (de)
WO (1) WO2023224126A1 (de)

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Also Published As

Publication number Publication date
EP4528002A4 (de) 2025-09-03
US20250257505A1 (en) 2025-08-14
WO2023224126A1 (ja) 2023-11-23
CN119497771A (zh) 2025-02-21
JP7648064B2 (ja) 2025-03-18
JPWO2023224126A1 (de) 2023-11-23

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