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
• • 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
  • 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
  • D10B2401/02—Moisture-responsive characteristics
  • D10B2401/021—Moisture-responsive characteristics hydrophobic
• • 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
  • D10B2401/02—Moisture-responsive characteristics
  • D10B2401/022—Moisture-responsive characteristics hydrophylic
• • 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
  • D10B2403/00—Details of fabric structure established in the fabric forming process
  • D10B2403/01—Surface features
  • D10B2403/011—Dissimilar front and back faces
  • D10B2403/0114—Dissimilar front and back faces with one or more yarns appearing predominantly on one face, e.g. plated or paralleled yarns
• • 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
  • D10B2403/00—Details of fabric structure established in the fabric forming process
  • D10B2403/02—Cross-sectional features
  • D10B2403/021—Lofty fabric with equidistantly spaced front and back plies, e.g. spacer fabrics
• • 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
  • D10B2501/00—Wearing apparel
  • D10B2501/02—Underwear

Definitions

• the present invention relates to a three-layer knitted fabric. More specifically, the present invention relates to a three-layer knitted fabric in which an intermediate knitted fabric layer made of a hollow binding yarn is arranged between a surface knitted fabric layer and a back knitted fabric layer. is there. INDUSTRIAL APPLICABILITY
• the three-layer structure knitted fabric of the present invention is suitably used for undergarments requiring high lightness and heat retention. Background art
• a three-layer knitted fabric formed by tacking the front and back knitted fabric layers with a binding yarn is disclosed in, for example, Japanese Patent Application Laid-Open No. 6-158483. Because of its excellent heat retention and good appearance, it is widely used in sports clothing, for example, training wear, and power clothing for children and women. When this three-layer knitted fabric is used for underwear, it is required to have a high heat retention property and further improve the lightness.
• Conventional underwear knitted fabrics include natural fibers such as cotton, or natural fibers and synthetic fibers (eg, polyester nylon), regenerated fibers (eg, rayon), or semi-synthetic fibers (eg, tris).
• a yarn obtained from a combination with acetate fiber) is knitted by a circular knitting machine into a milling structure or a sheeting structure, and is widely used.
• the front or back surface of the knitted fabric is brushed, or the knitting yarn is far-infrared and / or near-infrared.
• Fiber manufactured by kneading a substance that absorbs The use of water or functional fibers that generate heat by absorbing moisture in the air achieves improved heat retention.
• the thickness of the knitted fabric may be significantly increased, and when the above-mentioned functional fiber is used, the effect of improving the heat retention may be unsatisfactory. In this case, It is necessary to increase the thickness of the knitted fabric, resulting in a disadvantage that the weight becomes excessive. Disclosure of the invention
• An object of the present invention is to provide a three-layer structure knitted fabric that is useful for knitted clothing having high lightness and heat retention.
• the above object can be achieved by the three-layer structure knitted fabric of the present invention.
• the three-layer structure knitted fabric of the present invention includes a surface layer having a yarn / knit structure, a back layer having a yarn / knit structure, a yarn / knit structure of the surface layer, and a yarn / knit structure of the back surface layer. And a connecting intermediate layer made of a binding thread for tacking.
• the binding yarn is formed of a hollow fiber.
• the binding yarn is a polyester multifilament yarn
• the thickness of the yarn is 20 to 170 dt ex
• the thickness of the single filament is S 1. 1010 dtex and the hollow rate of the single filament is preferably 10 to 55%.
• the three-layer structure knitted fabric of the present invention preferably has a thickness of 0.5 to 1.5111111 and a basis weight of 80 to 200 8 / m 2 .
• the connecting intermediate layer is preferably a 25 to 60 g Z m 2 basis weight.
• the three-layer structure knitted fabric of the present invention preferably has a heat retention rate ⁇ of 18% or more. Good.
• the yarn constituting the surface layer is a polyester bulky multifilament yarn, the yarn thickness of which is 20 to 170 dtex, and the single filament is used. Is 0.:! It is preferably about 20 dTex.
• the yarn constituting the back layer is made of at least one kind of fiber selected from natural fibers, synthetic fibers, regenerated fibers, and semi-synthetic fibers. .
• the three-layer structure knitted fabric of the present invention preferably has a circular knit structure.
• FIG. 1 is an explanatory cross-sectional view showing a configuration of an example of a three-layer structure knitted fabric of the present invention.
• FIG. 2 is a cross-sectional photograph of an example of the three-layer knitted fabric of the present invention.
• FIG. 3 is an organization chart of an example of the three-layer knitted fabric of the present invention.
• FIG. 4 is an explanatory sectional view of a dry contact heating device used for measuring the heat retention ⁇ of the three-layer knitted fabric of the present invention.
• the three-layer structure knitted fabric of the present invention is formed by tacking a surface layer and a back layer made of a yarn knitted into a knitted structure, a yarn knitted structure of a surface layer, and a back layer yarn knitted structure to connect them. And a connection intermediate layer made of a binding yarn.
• the connection yarn forming the connection intermediate layer is made of a hollow fiber.
• the hollow fiber includes a peripheral wall portion extending along the longitudinal direction of the hollow fiber and having an annular cross-sectional shape, and a hollow portion surrounded by the peripheral wall portion and extending in the longitudinal direction of the hollow fiber. is there.
• the three-layer knitted fabric of the present invention is formed on an undergarment, the three-layer knitted fabric undergarment is arranged such that the back surface layer faces the skin surface of the wearer and the surface layer faces the outside air side. Used. At this time, since the back layer often comes into contact with the wearer's skin, it is required that the back layer has good heat retention and sweat and moisture absorption properties, and also has a good touch feeling. In addition to a good appearance, it is required to have an appropriate degree of slipperiness with the outer garment overlaid, etc.
• the connecting intermediate layer has strong tackiness, good shape retention (pressure resistance and shrinkage), and high heat retention. Desired.
• FIG. 2 shows a cross-sectional photograph of an example of the three-layer knitted fabric of the present invention.
• the yarn 2 a constituting the knitted structure of the surface layer 2 and the yarn 3 a constituting the knitted structure of the back layer 3 are connected to the binding yarn 4 of the connecting intermediate layer 4. tacked by a.
• the filaments constituting the binding yarn 4a shown in FIG. 2 are hollow filaments as can be seen from the cross section seen in FIG.
• FIG. 3 shows an example of the knitted structure of the three-layer structure knitted fabric of the present invention.
• Figure 3 — (1) and (4) show the knitted structure of the surface layer, and
• Figs. 3-(3) and (6) show the knitted structure of the connected middle layer.
• the type of the binding yarn used for the connecting intermediate layer is not limited.
• it is preferably a hollow multifilament yarn, and in this case, the thickness is small.
• 20-: L 70dt ex
• the thickness of the single filament is 1 to 10 dtex
• the hollow ratio of the single filament is 10 to 55%
• the hollow ratio means the percentage of the new area of the hollow portion with respect to the cross-sectional area of the hollow filament in the cross section of the hollow filament.
• the binding yarn may be a spun yarn (preferably, thickness: 20 to: L70dt ex) having a hollow short fiber (preferably, thickness :: to 10 dt ex, hollow ratio: 10 to 55%). .
• the type of hollow fiber constituting the binding yarn is not particularly limited, but is preferably selected from organic fibers for clothing, for example, hollow polyester long fiber, hollow nylon long fiber, and hollow polyester short fiber. Fibers, hollow short fibers or composite fibers thereof are used, and among these, hollow polyester long fibers are preferably used.
• the basis weight of the connecting intermediate layer is
• the obtained three-layer structure knitted fabric of the present invention can exhibit high heat retention and lightweight.
• the surface layer of the three-layer structure knitted fabric of the present invention is constituted by bulky yarns such as false twisted yarns, spun yarns, air entangled yarns, and hetero-shrinkable mixed fiber yarns.
• a knitted fabric having high heat retention can be obtained. It also improves the feel of the resulting knitted fabric and prevents the binding yarn used for forming the connecting intermediate layer from extending from the outer surface of the surface layer when it is tacked to the surface layer forming yarn.
• the yarn constituting the surface layer preferably has a thickness of 20 to: L70 d ex and a single fiber thickness of 0.1 to 20 d ex, and 50 to 150 d ex, 2 to 5 d ex, respectively.
• dt ex there are no particular restrictions on the types of fibers that make up the surface layer yarn, such as fibers such as polyester, nylon, acetate, acryl, rayon, cotton, wool, and silk. Such composite yarn fibers and the like can be used, and among them, it is preferable to use polyester fibers.
• these fiber yarns are false twisted multifilament yarns, and more preferably, false twisted polyester multifilament yarns.
• Basis weight of the surface layer is preferably 20 to 60 g / m 2, preferably Ri good to be 30 ⁇ 50g / m 2.
• the yarn forming the knitted structure of the back layer is made of natural fibers (for example, cotton, wool, silk, etc.) and synthetic fibers (for example, polyester, nylon, acryl, etc.). It is preferable that the yarn is selected from a single yarn selected from regenerated fibers (for example, rayon, Cubra, etc.) and semi-synthetic fibers (for example, triacetate fibers) or a combination of two or more yarns.
• the fiber yarn for the back layer has good wear comfort for the wearer (for example, cotton, rayon polyester, nylon yarn or the like). Or more composite yarns).
• the yarn for the back layer may be either a multi-filament yarn or a spun yarn, and the multi-filament yarn may be one subjected to bulk processing.
• the thickness of the yarn for the back layer is preferably 40 to 300 6 (130 to 20), more preferably 70 to 200 dtex.
• the basis weight of the back layer is preferably from 30 to 100 g Zm 2 , more preferably from 40 to 70 g / m 2 .
• the thickness and basis weight of the three-layer knitted fabric of the present invention there is no particular limitation on the thickness and basis weight of the three-layer knitted fabric of the present invention. And only a three-layer structure knitted fabric, in order to obtain both high insulation and light weight, the thickness of 0 ⁇ 5 ⁇ : L 5mm, it is that the basis weight is 80 to 200 g Roh m 2 More preferably, they are 0.6 to 0.8 mm and 110 to 150 g Zm 2 , respectively.
• the heat retention of the three-layer structure knitted fabric of the present invention measured by the following method is preferably 18% or more, and more preferably 20% or more.
• the heating device shown in Fig. 4 (Large BT_Box, manufactured by Kato Tech Co., Ltd., model: Thermolab II) 5
• heating surface placed on top (Dimensions: lOcm X lOcm (Only the surface is openly exposed and the others are insulated) is kept at a constant temperature of 65 ° C, a test sample of 10 cm X 10 cm is placed on it, and the heated surface temperature is set to 65 ° C. Measure the amount of power (watt) consumed to hold for 1 minute. For comparison, the power consumption W Q (pet) when the test sample is not placed on the heated surface is measured.
• the heat retention rate of the test sample is calculated by the following formula.
• Heat retention rate ⁇ (%) (W. one / W 0 X 100
• a yarn forming a surface layer structure and a yarn forming a back layer structure are supplied from one side and a dial side of a circular knitting machine, respectively. Then, while knitting to a desired structure, for example, the structure shown in FIG. 3, the surface layer knitted structure and the back layer knitted structure are tacked by a hollow fiber binding yarn to form a connection intermediate layer. Just do it.
• a desired structure for example, the structure shown in FIG. 3
• the three-layer knitted fabric of the present invention was knitted using a circular knit 23 G double machine.
• As the surface layer yarn a 56 dt ex / 36 filament polyethylene phthalate false twisted yarn is used, and as the back layer yarn, 98 dt ex (60th count) cotton spinning Using a 40 dt ex / 12 filament polyethylene phthalate hollow fiber (hollow rate: 35%) as the binding yarn for the connecting intermediate layer
• the three-layer knitted fabric having the knitting structure shown in FIG. 3 was manufactured by tacking the knitted fabric structure of the back surface layer with a hollow filament binding yarn to form a connecting intermediate layer. Table 1 shows the thickness, basis weight and heat retention of the obtained knitted fabric.
• This knitted fabric was excellent in lightness and heat retention, had a soft surface touch, had no binding yarn projecting or exposing on the knitted fabric surface and back surface, and had a good quality as an external product.
• X three layers Structural fabric was manufactured. Table 1 shows the thickness, basis weight and heat retention.
• the three-layer knitted fabric of Comparative Example 1 had the same appearance quality, thickness, and basis weight as those of Example 1, but had insufficient heat retention ⁇ .
• the three-layer structure knitted fabric of the present invention is relatively excellent in heat retention compared to its thickness and basis weight, and is relatively excellent in weight compared to its thickness and heat retention, It is a textile material suitable for applications such as undergarment materials that require high lightness and heat retention.

Landscapes

• Engineering & Computer Science (AREA)
• Textile Engineering (AREA)
• Knitting Of Fabric (AREA)
• Undergarments, Swaddling Clothes, Handkerchiefs Or Underwear Materials (AREA)

Priority Applications (4)

Applications Claiming Priority (2)

Publications (1)

Family

ID=18895996

Family Applications (1)

Country Status (7)

Cited By (1)

Families Citing this family (30)

Citations (5)

Family Cites Families (6)

• 2001
  • 2001-02-08 JP JP2001031996A patent/JP3880320B2/ja not_active Expired - Lifetime
• 2002
  • 2002-02-08 DE DE60219284T patent/DE60219284T2/de not_active Expired - Lifetime
  • 2002-02-08 WO PCT/JP2002/001109 patent/WO2002063082A1/ja not_active Ceased
  • 2002-02-08 US US10/467,085 patent/US20040060328A1/en not_active Abandoned
  • 2002-02-08 EP EP02711434A patent/EP1359238B1/en not_active Expired - Lifetime
  • 2002-02-08 KR KR1020037010367A patent/KR100821114B1/ko not_active Expired - Lifetime
  • 2002-02-08 CN CNA028078802A patent/CN1501996A/zh active Pending

Patent Citations (5)

Non-Patent Citations (1)

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