CN-117661181-B - Double knit fabric and method for producing double knit fabric

CN117661181BCN 117661181 BCN117661181 BCN 117661181BCN-117661181-B

Abstract

The invention provides a double-sided knitted fabric, which is integrally formed into a 5-layer structure and reduces tension. In the double knit fabric (10), one side knit fabric (11) has one side stitch (11A) exposed at one side and one side plating stitch (11E) which is doubled along the other side surface thereof. The other side knitted fabric (12) has an other side stitch (12A) exposed on the other side and an other side plating stitch (12E) which is doubled along one side surface thereof. One side stitch (11A) and the other side stitch (12A) are formed by textile yarns (10C). The plating stitch (11E) on one side and the plating stitch (12E) on the other side are made of elastic yarns (10D, 10F) which are more easily elastically deformed than the spun yarns (10C, 10E). In a natural state in which no external force is applied, the tension applied to the elastic yarns (10D, 10F) is smaller than the tension applied to the textile yarns (10C, 10E).

Inventors

YAMADA SABURO
KINJO Hideyuki
Nina Ryuta

Assignees

株式会社则武

Dates

Publication Date: 20260508
Application Date: 20230724
Priority Date: 20220907

Claims (4)

1. A double knit fabric comprising a knitted fabric formed by joining one knitted fabric constituting one surface and another knitted fabric constituting the other surface with a joining yarn, characterized in that, The one-side knitted fabric has one-side stitch exposed on the one side and one-side plating stitch which is doubled along the other side surface of the one-side stitch, The other side knitted fabric has an other side stitch exposed on the other side and an other side plating stitch which is doubled along the one side surface of the other side stitch, The one side weave and the other side weave are formed by textile yarns, The one-side plating stitch and the other-side plating stitch are made of elastic yarns that are more elastically deformable than the spun yarns, When the structure formed by knitting the elastic yarn and the spun yarn into the one-side knitted fabric or the other-side knitted fabric is a base structure and the direction in which the surface of the base structure spreads is an in-plane direction, the elastic yarn is knitted in from a direction along the in-plane direction, and the spun yarn is knitted in from an out-of-plane direction intersecting the in-plane direction, so that the tension applied to the elastic yarn is smaller than the tension applied to the spun yarn in a natural state in which no external force is applied to the double-side knitted fabric.
2. The double knit fabric according to claim 1, wherein, The one-side tissue is a plain stitch with the front side facing the one side and the back side facing the other side, The other side tissue is a plain stitch with the front side facing the other side and the back side facing the one side.
3. The double knit fabric according to claim 1 or 2, wherein, The connecting yarn is a false twist yarn having filaments in a crimped state.
4. A method for producing a double knit fabric, for producing the double knit fabric according to claim 1 or 2, characterized in that, The elastic yarn and the textile yarn are respectively woven into the structure of the one side knitted fabric or the other side knitted fabric, the structure is a base structure, the direction of surface expansion of the base structure is an in-plane direction, The elastic yarn is woven in from a direction along the in-plane direction, The textile yarn is woven in from an out-of-plane direction intersecting the in-plane direction.

Description

Double knit fabric and method for producing double knit fabric Technical Field The present disclosure relates to a double knit fabric and a method of producing a double knit fabric. Background In the present disclosure, the "double knit fabric" refers to a knitted fabric in which one knitted fabric constituting one surface and the other knitted fabric constituting the other surface are connected by a connecting yarn. Such a double knit fabric has a structure in which one knitted fabric and the other knitted fabric are each formed by a plated (knitting) structure formed by combining an elastic yarn of polyester fiber with a structure formed by a spun yarn spun from cotton, thereby forming the whole structure into a 5-layer structure (for example, refer to patent document 1 below). The double knit fabric described in patent document 1 is knitted using a circular knitting machine. Prior art literature Patent literature Patent document 1 Japanese patent application laid-open No. 2022-02308 Disclosure of Invention Problems to be solved by the invention The double knit fabric is a material used for a mask for covering the mouth and nose, and is a material with tension which is less likely to cause misalignment even if the mask is used for a conversation or the like. In order to improve the wearing comfort of such double knit fabrics for clothing, it is necessary to reduce the tension thereof. The present disclosure provides a double knit fabric having a 5-layer structure overall and reduced tension. Means for solving the problems According to one feature of the present disclosure, there is provided a double knit fabric configured by joining one side knit fabric configuring one side surface and the other side knit fabric configuring the other side surface into one knit fabric with a joining yarn. The one-side knitted fabric has one-side stitch exposed on one side and one-side plating stitch which is doubled along the other side surface of the one-side stitch. The other side knitted fabric has an other side stitch exposed on the other side and an other side plating stitch which is doubled along one side of the other side stitch. In addition, the one-side weave and the other-side weave are formed of textile yarns. The plating stitch on one side is made of an elastic yarn that is more easily elastically deformed than the spun yarn. In the double knit fabric, the tension applied to the elastic yarn is smaller than the tension applied to the spun yarn in a natural state in which no external force is applied. According to the double knit fabric described above, in a natural state in which no external force is applied, the elongation of the elastic yarn constituting the plating stitch on one side and the plating stitch on the other side is suppressed by the spun yarn. Therefore, when an external force is applied to the double knit fabric, the elastic yarn starts to deform from a state in which the elongation is smaller, and accordingly the deformability of the double knit fabric is improved. Thus, a double knit fabric having a 5-layer structure as a whole and reduced in tension can be provided. According to another aspect, the one-side weave is a plain weave with the front side facing toward one side and the back side facing toward the other side. The other side tissue is a plain stitch having the front side facing the other side and the back side facing the one side. The surface of one side and the other side of the double knit fabric are each constituted by the surface of the surface side of the plain stitch. The surface of the plain stitch on the front side has the characteristics of uniform yarn orientation and less surface irregularities than the surface of the plain stitch on the back side. Thus, the design of the double knit fabric can be improved and the skin feel can be improved. According to another aspect, the connecting yarn is a false twist yarn having long filaments in a crimped state. In the present disclosure, the term "false twist yarn" refers to a yarn produced by twisting a long filament into a twisted yarn and then untwisting the twist of the twisted yarn. The false twist yarn is composed of filaments in a crimped state and is capable of being deformed flexibly against an external force. Further, the filaments of the false twisted yarn are long, so that the number of filaments required for the yarn is small, and the possibility that the ends of the filaments protrude from the double knit fabric and become a stimulus is low. Therefore, the skin touch of the double knit fabric is improved. According to another aspect, a method of producing the double knit fabric described above is provided. In this method, the structure formed by knitting the elastic yarn and the spun yarn into one or the other knitted fabric is referred to as a base structure, and the direction in which the surface of the base structure spreads is referred to as an in-plane direction. Further, the elastic yarn is woven from a direction