JP2005089889A - Pile knitted fabric and method for knitting the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a pile knitted fabric which can be knitted with a warp knitting machine equipped with two yarn-feeding reeds and is very lightweight and thin and whose piles can be elongated, and to provide a method for knitting the same. <P>SOLUTION: This method for knitting the pile knitted fabric with a tricot warp knitting machine equipped with two yarn-feeding reeds comprises arranging yarns in each of the front side yarn-feeding reed and the back side yarn-feeding reed in a yarn arrangement wherein yarns are taken out one every other line, knitting the yarns on the front side in a chain-knitted state, knitting the feeds on the back side in the chain-knitted rows on the front side, while laterally shaking the yarns on the back side to form loops, and missing the loops at wales free from chain knitted rows. After the fabric is knitted, the missed loops are used as loop piles. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a pile knitted fabric and a knitting method thereof, and more particularly to a pile knitted fabric that can be used as a base fabric for synthetic leather, a hook-and-loop fastener, a lining fabric for shoes, a hat, and the like, and a knitting method thereof.

  In the case of a pile fabric, for example, in the case of a fabric such as velvet, the surface is finished by opening and raising the cut pile yarn protruding from the ground structure by sliding a needle cloth on the fabric surface. It is produced through a manufacturing process. Therefore, the price is high, and usable applications are limited.

  For example, when a pile fabric is used as a female base material for a hook-and-loop fastener, a function capable of reliably engaging with a male base material is required, but finishing such as a velvet fabric is not necessary. The challenge is how to keep costs down while maintaining functionality.

In order to reduce costs, a production method using a knitted fabric as a pile fabric and using a warp knitting machine suitable for mass production has been proposed. For example, Patent Document 1 describes a weft insertion warp knitted fabric that is used as a female knitted fabric with fasteners by hooks and loops, and the back side has a plurality of stitch wales spaced apart from each other, and each wrap portion of these stitches Projecting outward and connected to the wales only at the base, adjacent loops of each wal are inserted into the weft insertion warp knitted fabric forming a free loop that is alternately inclined in the weft direction opposite to each other, and the front and back sides of the knitted fabric And a weft thread inserted in the weft direction of the knitted fabric and extending across the entire width of the knitted fabric. Moreover, in patent document 2, it consists of the tricot place knitted into several knitting layers using the multiple kites arranged before and behind, the knitting structure of the front kite yarn (1012), and the knitting organization of the back kite yarn (1034) As described above, the knitting length by the back heel is set to 2 to 3 times the knitting length by the front heel.
JP-A-8-60503 JP 2000-175711 A

  However, in Patent Document 1, a special knitting machine is required to insert the weft, and it is impossible to produce using a warp knitting machine consisting of two sheets which is widely used at present. It must be large. In addition, inserting the wefts will make the pile structure firm, but it will increase the fabric weight and increase the product cost. Further, in Patent Document 2, it is possible to produce using a warp knitting machine comprising two sheets, but since the pile is formed by adjusting the knitting length of the yarn, The pile length is low, and its usage is limited from the viewpoint of cost.

  Therefore, the present invention provides a pile knitted fabric that can be knitted using a warp knitting machine equipped with two yarn feeders, can have a long pile length, and is very light and thin, and a knitting method thereof. It is for the purpose.

  A knitting method of a pile knitted fabric according to the present invention is a knitting method of knitting a pile knitted fabric with a warp knitting machine having two yarn feeders, and every other yarn is pulled out from one yarn feeder. Each yarn is knitted into a chain knitting with a single yarn arrangement, and the yarn fed from the other yarn feeder is knitted into the chain knitting to form a ground structure and to form a misloop in the unwound wale It is characterized by doing. Further, the yarn fed from the other yarn feeder is alternately swung in the weft direction while forming a loop for each course, and is swung in the weft direction to form a plurality of the chain braids when forming a misloop. It is characterized by being knitted with under wrap. Further, the yarn fed from the other yarn feeder is knitted with a predetermined number of courses including two courses in which a misloop is formed as a repeating unit, and the two courses in which the misloop is formed are swung in opposite directions. It is characterized by. Further, the present invention is characterized in that a part of the plurality of wales from which the yarn has been removed is fed from one yarn feeder and knitted into a chain knitting so that no misloop is formed in the wales. Further, the present invention is characterized in that the yarn fed from the other yarn feeder is looped in a wale in which only a part of the course is not removed, so that no misloop is formed.

  The pile knitted fabric according to the present invention is a pile knitted fabric knitted by the knitting method described above, and a loop pile due to a miss loop is exposed on one side. Furthermore, the yarns constituting the ground structure are bonded and fixed by an adhesive resin. Further, the present invention is characterized in that yarns made of low-melting polyester fibers are knitted as yarns constituting the ground structure and fused and fixed to each other. Furthermore, a heat-fusible resin is adhered to the surface on the other side.

  The sheet body according to the present invention is characterized in that a film is bonded and fixed to the entire surface of the other side of the pile knitted fabric.

  By having the configuration as described above, since it can be knitted using a warp knitting machine equipped with two yarn feeders that are already widely spread and inexpensive in manufacturing cost, the manufacturing cost can be suppressed, Since a pile loop is formed by forming a misloop in the threaded yarn, it can be manufactured to be very light and thin, and the product weight can be reduced because the fabric weight is reduced. And the pile formed by the miss loop can set a pile length long, and does not need to perform post-processing, such as raising. Moreover, a ground structure can be comprised by knitting one thread | yarn with a chain knitting and knitting the other thread | yarn with the under wrap to the chain knitting. In addition, a loop pile can be formed more precisely by knitting a predetermined number of courses including two courses where a misloop is formed as a repeating unit. In this case, a loop pile distribution is made more uniform by forming a misloop in opposite directions Can be

  In addition, if one of the plurality of wales from which yarn has been removed is fed from one yarn feeder and knitted into a chain knitting so that no misloops are formed in the wales, the loop piles are striped in the warp direction. A part that has been exposed and a part that has not been exposed are formed, and the yarn fed from the other yarn feeder is looped in a part of the wale where all the courses have not been removed. If not, a loop pile exposed portion and a non-exposed portion are formed in a saddle shape in the weft direction, and a geometric pattern can be displayed.

  Also, if the yarns constituting the ground structure are bonded and fixed with an adhesive resin, or the yarn made of low-melting polyester fibers is knitted as the yarn constituting the ground structure and fused together, the ground structure is stabilized. The strength can be increased. In addition, if a heat-fusible resin is adhered to the surface of the other side, the pile knitted fabric is placed with the other side in contact with the attachment location, and the entire knitted fabric is heated by an iron or the like. The functional resin melts and can be easily fused to the mounting location. Further, if the film is adhered and fixed to the entire surface of the other side of the pile knitted fabric, the entire pile knitted fabric can be reinforced and the ground structure of the knitted fabric itself can be stabilized.

  Hereinafter, the present invention will be described in detail based on embodiments shown in the accompanying drawings. The embodiments described below are preferable specific examples for carrying out the present invention, and thus various technical limitations are made. However, the present invention is particularly limited in the following description. Unless otherwise specified, the present invention is not limited to these forms.

  FIG. 1 shows a cross-sectional view of a pile knitted fabric knitted by a knitting method according to the present invention. A loop pile 2 formed by a miss loop protrudes from the ground structure 1. As yarns used for knitting, recycled fibers typified by rayon, natural fibers typified by cotton, semi-synthetic fibers such as acetate, polyester synthetic fibers typified by polyethylene terephthalate, aliphatic polyamides typified by nylon Synthetic fibers or mixed fibers thereof may be mentioned. Then, polyurethane or the like may be combined to give elasticity, or may be biodegraded using polylactic acid fibers, or may have various functions depending on the application. For example, in the case of a pile fabric used for a hook-and-loop fastener, polyamide-based fibers are preferable, and in the case of disposable, polylactic acid-based fibers may be used.

  When long fiber yarns are used, those in the range of 17 to 1100 dtex (15 to 1000 denier) are preferred. In the case of pile fabrics used for hook-and-loop fasteners, those in the range of 33 to 330 dtex (30 to 300 denier) are particularly preferable.

  As a knitting machine used in the knitting method according to the present invention, a tricot warp knitting machine and a model having two widely used yarn feeders can be used.

  FIG. 2 shows an example of a knitting organization chart of a pile knitted fabric according to the present invention. In this example, the back-side and front-side yarn feeders each have a so-called 1 in 1 out yarn arrangement in which every other yarn is pulled out. And the knitting structure of the yarn on the front side is knitted into a chain knitting at 1-0 / 0-1 as drawn on the right side, and the knitting structure of the yarn on the back side is drawn on the left side , 1-0 / 6-7 / 2-1 / 6-7 / 1-0 / 5-6 form a loop, and this series of 6 courses is organized as a repeating unit. In this case, as shown in FIG. 3, in the back side knitting structure, the loop formed by 1-0 and 6-7 is knitted in the front side chain stitch row, but is formed by 2-1 and 5-6. Loop (indicated by hatching) is a misloop because there is no corresponding chain stitch on the front side. Then, the yarn between the loops is knitted with underwrapping in two chain stitch rows. Therefore, the ground structure is knitted by the loop formed by the back side 1-0 and 6-7 and the underwrapped yarn knitted into the front side chain stitch row, and the miss loop formed by 2-1 and 5-6 Becomes a loop pile after knitting. And it is desirable that about 1 to 4 back side underwrap yarns are knitted in one course of the front side chain stitch row.

  In the knitting structure diagram of FIG. 2, the misloop is formed inside the loop knitted into the chain knitting row. However, as shown in FIG. 4, the knitting structure of the back side yarn is 2-1 / 5. -6 / 1-0 / 5-6 / 2-1 / 6-7 may be formed as a loop, and the loop formed by 1-0 and 6-7 may be a misloop. With such a knitting structure, a misloop is formed outside the loop knitted in the front side chain knitting row, and the back side yarn is underwrapped in only one chain knitting row between each loop, and the ground structure is thin. I begin to knit.

  2 and 4, the back side yarn has a knitting structure with 6 courses as a repeating unit, but as shown in FIG. 5, a knitting structure with 4 courses as a repeating unit is also possible. . In FIG. 5, a loop is formed at 5-6 / 2-1 / 6-7 / 1-0, and a miss loop is formed at 6-7 and 1-0. FIG. 6 shows a knitting structure with two courses as a repeating unit. In this example, a loop is formed at 5-6 / 1-0 and a miss loop is formed at 1-0. In the case of FIG. 6, since the ground texture of the knitted fabric is not stable, it is preferable to perform reinforcement such as bonding a film as described later.

  By using the knitting structure as described above, it is possible to set the pile loop height to 0.5 to 5.0 mm and the pile pitch to 0.9 to 2.0 mm. It is. Further, since the yarn on the back side is knitted in a loop on the front-side chain braid row, no yarn dropout or the like occurs even when the loop pile is pulled. Therefore, like a hook-and-loop fastener, even if the loop pile is pulled when being pulled apart, it has durability.

  FIG. 7 is a diagram showing a striped pattern in the warp direction by partially inserting a chain knitting into a portion of the knitting structure shown in FIG. In this example, every third chain stitch row is filled in the portion where the yarn has been removed (range A portion), and what is mislooped by the back side yarn is knitted into the buried chain stitch row. become. Accordingly, the ground structure is further reinforced. Further, FIG. 8 shows a stripe pattern in the weft direction by knitting all the loops formed by the yarn on the back side for a predetermined course into the front side braided row (range B). I am doing so. Also in this example, since all the loops on the back side are knitted into the chain stitch row, the ground structure is further reinforced. By using both FIG. 7 and FIG. 8, a lattice-like pattern can be displayed.

  The loop pile formed by the miss loop can be changed from an upright state to an inclined state depending on the characteristics of the yarn to be used and the driving density, and can also be in a state lying on the ground structure. Therefore, a loop pile can be set according to the application.

  After being knitted into a pile knitted fabric, the ground structure portion is impregnated with an adhesive resin to bond the yarns together, thereby improving the stability of the texture. Moreover, by using low-melting point polyester fibers for the yarn knitted in the ground structure, the yarns of the ground texture can be bonded together by heating without resin processing.

  If the heat-fusible resin is adhered to the surface of the pile knitted fabric opposite to the surface on which the loop pile is formed, the pile knitted fabric can be easily attached by heating means such as an iron. If the heat-fusible resin is adhered in the form of dots, the productivity is improved. Further, by forming a sheet by adhering and fixing the film to the entire surface opposite to the surface on which the loop pile is formed, the ground structure is reinforced and the handling becomes simple.

As the yarn on the front side and the back side, a yarn made of polyamide fiber of 44 dtex / 10 filament was used. As a knitting machine, a tricot knitting machine equipped with two yarn feeders was used, and the knitting structure shown in FIG. 2 was knitted at 28 wales and 45 courses / inch. The basis weight of the knitted pile knitted fabric was about 30 g / m ² , and the loop pile had a height of 2.5 mm and a pitch of 1.7 mm.

  When the pile knitted fabric knitted in this way was bonded and fixed as a hook-and-loop fastener of a paper diaper, and the engaging and peeling operations of the hook-and-loop fastener were repeated 10 times, there was almost no decrease in the engaging force, and normal use of the disposable diaper It was confirmed that it has sufficient durability. In addition, phenomena such as loop pile thread drop were not observed.

1 is a schematic cross-sectional view of a pile knitted fabric knitted by a knitting method according to the present invention. It is a knitting organization chart of a pile knitted fabric. It is explanatory drawing regarding the pile knitted fabric knitted by the knitting structure of FIG. FIG. 3 is a knitting structure diagram showing a modification of the pile knitted fabric of FIG. 2. It is explanatory drawing regarding another knitting organization of a pile knitted fabric. It is explanatory drawing regarding another knitting organization of a pile knitted fabric. It is explanatory drawing regarding the knitting structure | tissue which exposes a striped pattern to a pile knitted fabric. It is explanatory drawing regarding the knitting structure which exposes a striped pattern to a pile knitted fabric.

Explanation of symbols

1 Local organization 2 Pile

Claims (10)

  A knitting method in which a pile knitted fabric is knitted by a warp knitting machine equipped with two yarn feeders, and each yarn is fed by a yarn arrangement in which every other yarn is removed from one yarn feeder. A method of knitting a pile knitted fabric, characterized in that a yarn is knitted into a knitted fabric, a yarn fed from the other yarn feeder is knitted into the chain knitted fabric to form a ground structure, and a miss loop is formed in the yarn that has been unwound .   The yarn fed from the other yarn feeder is alternately swung in the weft direction while forming a loop for each course, and when forming a misloop, it is swung in the weft direction and underlies the plurality of chain stitches. The method for knitting pile fabric according to claim 1, wherein the knitting method is performed by wrapping.   The yarn fed from the other yarn feeder is knitted with a predetermined number of courses including two courses in which a miss loop is formed as a repeating unit, and the two courses in which a miss loop is formed are swung in opposite directions. A method for knitting a pile knitted fabric according to claim 2.   4. The yarn according to claim 1, wherein a part of the plurality of wales from which the yarn has been removed is fed from one yarn feeder and knitted into a chain knitting so that no misloop is formed in the wales. The knitting method of the pile knitted fabric described in 2.   5. A loop formed on a wale in which only a part of the yarn is fed from the other yarn feeder is formed so that a miss loop is not formed. The knitting method of the pile knitted fabric described in 2.   6. A pile knitted fabric knitted by the knitting method according to claim 1, wherein a loop pile due to a miss loop is exposed on one side.   The pile knitted fabric according to claim 6, wherein the yarns constituting the ground structure are bonded and fixed with an adhesive resin.   The pile knitted fabric according to claim 6, wherein yarns made of low-melting polyester fibers are knitted as yarns constituting the ground structure and fused and fixed to each other.   The pile knitted fabric according to any one of claims 6 to 8, wherein a heat-fusible resin is adhered to the surface on the other side.   A sheet body, wherein a film is adhered and fixed to the entire surface of the other side of the pile knitted fabric according to any one of claims 6 to 8.

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