JP2007023401A - Gauze and method for producing the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a gauze capable of preventing the falling off of yarn, keeping the absorbency and handling feel and reducing the cost. <P>SOLUTION: Yarn escape preventing parts 7 are formed along both edges of a gauze body 4 by a leno weave formed by alternately extending a weaving yarn 6 from the front side of a warp 2 along longitudinal direction to the reverse side of a weft 3 at both lateral sides of the gauze body 4. The structure can prevent the falling off of the warp 2 and the weft 3, keep the absorbency and handling feel of the gauze 1 and reduce the cost because a large number of warps 2 are not necessary in the yarn escape preventing part 7. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a gauze comprising a gauze body formed so that warp yarns along the longitudinal direction and weft yarns along the width direction are alternately cross-woven and are plain woven to have both longitudinal ends and both lateral sides, and It relates to the manufacturing method.

  Conventionally, this type of gauze used for medical purposes, etc. is manufactured so that wefts are folded back with a width equal to the required gauze width, so that there is no thread breakage on both side edges. There are some that prevent the thread from falling off.

  However, in such a gauze, only one row of gauze can be manufactured in the longitudinal direction with respect to one loom regardless of the width of the gauze, so that mass production is not easy and the cost increases. It was.

  Therefore, a method of obtaining a narrow gauze from a wide gauze by weaving warp and weft into a plain weave of an auricular structure, and cutting the wide woven plain fabric into a predetermined gauze width along the warp direction. Can be considered. In such a gauze manufacturing method, for example, at the left and right ends of the weft width of the warp and weft, a high warp density part with increased warp density is formed, and at the middle part of the high warp density part at the left and right ends, A pair of cut high warp density portions are provided for each predetermined gauze width interval, and weaving is performed with a constant weft density. The cutter is allowed to pass between the pair of cut high warp density portions without cutting the warp. A cutting margin is set, and a gauze having a predetermined width is obtained by cutting the cutting margin portion (see, for example, Patent Document 1).

In addition, the warp and weft yarns are alternately passed from the front side of the X-ray contrast yarn to the back side of the weft yarn of the gauze main body while the X-ray contrast yarn and the weaving yarn are wound together on the gauze main body woven in a plain weave. In addition, there is also known a gauze that forms a twisted structure substantially parallel to either the warp or the weft with an X-ray contrast yarn (for example, see Patent Document 2).
Japanese Patent Laying-Open No. 2005-21307 (page 4-5, FIG. 1-3) Japanese Patent No. 3658308 (page 2-3, FIG. 1)

  However, in the gauze described in the above-mentioned Patent Document 1, the warp located at the outermost part of the high warp density part is still easy to fall off, and the high warp density part is formed to prevent the warp from falling off. When a large number of yarns are used, the high warp density portion becomes hard, the absorptivity and texture are deteriorated, and the production cost is increased.

  On the other hand, if the warp density of the high warp density part is reduced in order to prevent the gauze from becoming hard and to suppress the manufacturing cost, the effect of preventing the warp from falling off becomes insufficient.

  In addition, the gauze described in Patent Document 2 described above has a problem that the warp or the weft may fall off although it is effective in preventing the X-ray contrast yarn from dropping off.

  This invention is made | formed in view of such a point, and it aims at providing the gauze which can prevent drop | omission of a thread | yarn, can ensure an absorptivity and a texture, and can suppress cost, and its manufacturing method.

  Moreover, an object of this invention is to provide the manufacturing method of the gauze which can be manufactured by the combination of arbitrary widths.

  The gauze according to claim 1 is a gauze main body formed so that warp yarns along the longitudinal direction and weft yarns along the width direction alternately intersect and are plain woven to have both ends in the longitudinal direction and both sides in the width direction. A thread drop prevention portion formed along both side edges in the width direction of the gauze body, and the thread drop prevention portion is formed at the both side edges in the width direction of the gauze body from the front side of the warp yarn. It is formed of a twisted structure that is alternately stretched along the longitudinal direction on the back side of the weft.

  The gauze according to claim 2 is the gauze according to claim 1, wherein at least one of the warp and the woven yarn constituting the twisted structure is composed of a plurality of yarns.

  The gauze according to claim 3 is the gauze according to claim 1 or 2, wherein the thread drop prevention portion has a plurality of twisting structures.

  The gauze manufacturing method according to claim 4 is formed so that warp yarns along the longitudinal direction and weft yarns along the width direction are alternately crossed and plain woven to have both ends in the longitudinal direction and both sides in the width direction. A gauze body, and a thread omission prevention portion formed along both side edges of the gauze body in the width direction. A gauze manufacturing method formed by a twisted structure that is alternately stretched from the front side to the back side of the weft yarn along the longitudinal direction, and a continuous portion in which continuous warps are positioned at approximately equal intervals in the width direction, and A yarn disposing step of disposing a continuous warp so as to form a gap where no continuous warp is located, and a continuous warp direction so that a plain weave portion is continuously formed in the longitudinal direction in the continuous portion; Continuous wefts are arranged in the orthogonal direction A continuous gauze body forming step for forming a plurality of rows of continuous gauze bodies, and a continuous yarn comprising a continuous weaving yarn and a continuous warp structure at both side edge portions of the gap during the continuous gauze body forming step. A yarn omission prevention portion forming step for forming a omission prevention portion, a continuous gauze formation step for forming continuous gauze by cutting the continuous wefts at the gaps of the plurality of rows of continuous gauze bodies, and each continuous gauze. And a winding step for winding each in a roll shape.

  According to the first aspect of the present invention, the gauze body in the width direction on both sides in the width direction of the gauze body by the twisting structure in which the weaving yarn is alternately stretched along the longitudinal direction from the front side of the warp yarn to the back side of the weft. By forming a thread drop prevention part along the edge, it is possible to prevent the warp and weft from falling off, and since a large number of warp yarns are not required in the thread drop prevention part, it is possible to ensure absorbency and texture and reduce costs. it can.

  According to the second aspect of the present invention, it is possible to improve the effect of preventing the warp and weft from coming off by configuring a plurality of warp yarns and weaving yarns constituting the twisting structure.

  According to the third aspect of the present invention, since the yarn drop prevention portion has a plurality of twisting structures, it is possible to improve the warp and weft yarn removal prevention effect.

  According to the invention of claim 4, the continuous warp is disposed so as to form a continuous part where the continuous warp is located at substantially equal intervals in the width direction and a gap part where the continuous warp is not located, and the continuous warp direction Continuous wefts are arranged in a direction perpendicular to the main body to form multiple rows of continuous gauze bodies, and a continuous weaving yarn and continuous warp are formed at both side edges of the gap to form a continuous yarn omission prevention portion. Any width that prevents the warp and weft from falling off by forming continuous gauze by cutting the continuous wefts in the gaps of the multiple rows of continuous gauze bodies, and winding each continuous gauze into a roll. A plurality of continuous gauze can be manufactured at a time, and the cost can be suppressed.

  Hereinafter, the configuration of the gauze according to the first embodiment of the present invention will be described with reference to FIGS. 1 and 2.

  1 and 2, reference numeral 1 denotes a disposable gauze, and this gauze 1 is used for absorbing blood, body fluid, or the like for a surgical operation such as a surgical operation or a medical purpose. The gauze 1 has a gauze body 4 having a quadrangular shape, ie, warp yarns 2 and weft yarns 3 alternately intersecting and plain woven, having both longitudinal end portions and width direction both end portions.

  Here, the warp 2 and the weft 3 are formed into a thread-like material spun linearly with a material such as cellulose fiber such as cotton or rayon, or a mixture of cellulose fiber and plastic fiber such as polypropylene or polyester. Yes.

  The gauze body 4 is woven into the weft 3 by twisting while weaving the warp yarns 2 located at both side edges and the weaving yarn 6 which is the same quality and the same shape as the warp yarns 2.

  That is, the weaving yarn 6 for twisting and weaving the warp yarns 2 located on both side edges on the surface side which is one surface side of the gauze body 4 having a flat structure is alternately placed on the back side of the weft 3 of the gauze body 4 from the front side of the warp yarn 2 The gauze 1 has a plain structure composed of the warp 2 and the weft 3 and a twisted structure composed of the warp 2 and the weave thread 6, and the thread drop prevention portion 7 is configured by the twisted structure. In this state, the weft 3 slightly extends from the twisting structure to the side of the gauze 1.

  Next, the manufacturing method of the gauze of the said 1st Embodiment is demonstrated with reference to FIG.

  First, the continuous wefts 2a are respectively arranged so as to form the continuous portions 11 where the continuous warps 2a are positioned at approximately equal intervals in the width direction and the gap portions 12 where the continuous warps 2a are not positioned (yarn disposing step). twenty one). At this time, the width of the continuous gauze 1a in a plurality of rows is set by arbitrarily setting the width dimension of the continuous portion 11.

  Next, a plurality of rows of continuous gauze bodies are formed by disposing continuous wefts 3a in a direction perpendicular to the longitudinal direction which is a continuous warp direction, that is, in the width direction so that plain weave portions are continuously formed in the longitudinal direction in the continuous portion 11. 4a is formed (continuous gauze body forming step 22).

  Here, during the continuous gauze body forming process, the continuous weaving yarn 6a and the continuous warp 2a constitute a twisting structure at both side edge portions of the gap portion 12 to form the continuous yarn omission prevention portion 7a (yarn omission prevention portion formation). Step 23).

  Further, the continuous wefts 3a are cut at the gap portions 12 of the plurality of rows of continuous gauze bodies 4a to form continuous gauze 1a (continuous gauze forming step 24).

  In addition, in the case of manufacturing by continuously inserting the continuous weft 3a while being folded back in the width direction, the continuous gauze 1a located on both sides is asymmetric in the width direction because the folded portion of the continuous weft 3a enters the side part. It is preferable to cut off both side portions to be folded portions in this continuous gauze forming step or a step before this continuous gauze forming step.

  And each continuous gauze 1a is each wound up in roll shape (winding process 25).

  As described above, according to the first embodiment, the woven yarn 6 is alternately looped from the front side of the warp yarn 2 along the longitudinal direction to the back side of the weft yarn 3 at both side edges in the width direction of the gauze body 4. By forming the thread drop prevention portions 7 along the both side edges in the width direction of the gauze body 4 by the twisted structure, it is possible to prevent the warp 2 and the weft 3 from falling off, and the yarn drop prevention portion 7 includes a large number of warps 2. Therefore, the absorbency and texture of the gauze 1 can be secured and the cost can be suppressed.

  In addition, since the yarn can be prevented from coming off from the gauze 1, the gauze 1 is not unwound from both sides during use, and the usability is improved.

  Further, the continuous warp 2a is disposed so as to form a continuous part 11 where the continuous warp 2a is positioned at substantially equal intervals in the width direction and a gap part 12 where the continuous warp 2a is not positioned, and is orthogonal to the continuous warp direction. Continuous weft yarns 3a are arranged in the direction to form a plurality of rows of continuous gauze bodies 4a, and the continuous weaving yarn 6a and the continuous warp yarn 2a form a twisting structure at both side edge portions of the gap portion 12, thereby preventing the continuous yarn from coming off. 7a is formed, the continuous wefts 3a are cut at the gaps 12 of the plurality of rows of continuous gauze bodies 4a to form continuous gauze 1a, and each continuous gauze 1a is wound into a roll, respectively. A plurality of continuous gauze 1a having an arbitrary width that prevents the weft 3 from falling off can be manufactured at a time, and the cost can be suppressed.

  In addition, the mojiri weave is a quaternary structure aligned with a plain weave, and can be formed by a generally popular weaving method, so that it can be easily formed without making the process complicated as in the case of conventional gauze.

  Further, the warp 2 can be used as the weaving yarn 6, and it is not necessary to use a different type of weaving yarn, so that the productivity can be improved and the function as the gauze 1 can be easily performed as compared with the case of using a different kind of weaving yarn. It can be improved.

  In the first embodiment, the width dimensions of the plural rows of continuous gauze 1a are set to be different from each other. However, the continuous warps 2a are arranged so as to form a plurality of continuous gauze 1a having the same width dimension. May be.

  Next, a second embodiment will be described with reference to FIG. In addition, about the structure and effect | action similar to the said 1st Embodiment, the same code | symbol is attached | subjected and the description is abbreviate | omitted.

  In the second embodiment, the warp 2 and the weaving yarn 6 constituting the twisting structure are each composed of a plurality of pieces, for example, two pieces.

  In other words, in the second embodiment, two warps 2 and 2 that are located on both side edges on the surface side that is one surface side of the gauze body 4 having a flat tissue and that are adjacent to each other, are adjacent to each other. The weaving yarns 6 and 6 are alternately looped from the front side of the warps 2 and 2 to the back side of the weft 3 of the gauze body 4.

  Then, by configuring the warp 2 and the weave 6 constituting the twisting structure in two pieces, according to the second embodiment, the effect of preventing the warp 2 and the weft 3 from coming off can be improved. .

  In the second embodiment, the twisting structure of the yarn drop prevention unit 7 is composed of two warps 2 and two weaving yarns 6, but at least one of the warp 2 and the weaving yarn 6 is plural. If it is a book, for example, the warp 2 and the weaving thread 6 are both arranged in three pieces, and the warp 2 and the weaving thread 6 do not necessarily have the same number. For example, the warp 2 and the weaving thread 6 A single configuration may be used. In this case, the number of warp yarns 2 and weaving yarns 6 is not limited. However, when the number increases, the yarn slip-off prevention effect is improved, while the yarn slip-off prevention portion 7 becomes hard, and the number of yarns used. Increases the cost, and it is preferable to use a combination of about 1 to 4 pieces.

  Next, a third embodiment will be described with reference to FIG. In addition, about the structure and effect | action similar to said each embodiment, the same code | symbol is attached | subjected and the description is abbreviate | omitted.

  In the third embodiment, the thread drop prevention unit 7 has a plurality of, for example, two crease structures.

  That is, the back side of the weft 3 of the gauze body 4 is alternately applied to the warp yarns 2 located on both side edges in the width direction of the gauze body 4 and the warp yarns 2 adjacent to these warp yarns 2 from the front side of the warp yarn 2. As a result, the two twisting structures of the thread drop prevention portion 7 are arranged adjacent to each other.

  In this way, by providing a plurality of twisting structures that constitute the yarn drop prevention part 7, according to the third embodiment, the effect of preventing the warp 2 and the weft 3 from coming off can be improved.

  In the third embodiment, the number of twisting structures of the yarn omission prevention portion 7 can be three or more. However, when the number increases, the yarn omission prevention portion improves, while the yarn omission prevention portion 7 7 becomes hard, and the number of yarns used increases and the cost increases.

  Further, in each of the above embodiments, as shown in FIG. 6, a plurality of wefts 3 arranged in contact with each other in the longitudinal direction so as to increase the density of the wefts 3 at both longitudinal ends of the gauze 1. The part 15 may be formed. In this case, the weft 3 can be more reliably prevented from falling off.

  Furthermore, it is good also as a gauze containing an X-ray contrast thread | yarn by inserting an X-ray contrast thread | yarn into the gauze main body 4 used as a plain weave part. In this case, the arrangement method of the X-ray contrast thread is arbitrary. However, for example, the method disclosed in Japanese Patent No. 3648727 or Japanese Patent No. 3658308 is preferable because it can prevent the X-ray contrast thread from coming off.

It is a top view which expands and shows the principal part of the gauze of the 1st Embodiment of this invention. It is a top view which shows a gauze same as the above. It is explanatory drawing which shows the manufacturing method of a gauze same as the above. It is a top view which expands and shows the principal part of the gauze of the 2nd Embodiment of this invention. It is a top view which expands and shows the principal part of the gauze of the 3rd Embodiment of this invention. It is a top view which shows other embodiment of this invention.

Explanation of symbols

1 Gauze
1a Continuous gauze 2 Warp
2a Continuous warp 3 Weft
3a Continuous weft 4 Gauze body
4a Continuous gauze body 6 Weaving yarn
6a Continuous weaving thread 7 Thread removal prevention part
7a Continuous thread drop prevention part
11 Continuous part
12 Gap
21 Yarn placement process
22 Continuous gauze body forming process
23 Thread removal prevention part formation process
24 Continuous gauze formation process
25 Winding process

Claims (4)

A gauze body formed so that warp yarns along the longitudinal direction and weft yarns along the width direction alternately intersect and are plain woven to have both longitudinal ends and both lateral portions;
A thread drop prevention portion formed along both side edges in the width direction of the gauze body,
The thread drop prevention portion is formed by a twisted structure in which weaving yarns are alternately stretched along the longitudinal direction from the front side of the warp yarn to the back side of the weft yarn at both side edges in the width direction of the gauze body. Gauze characterized by. 2. The gauze according to claim 1, wherein at least one of warp and weaving yarn constituting the crease structure is composed of a plurality of yarns. The gauze according to claim 1 or 2, wherein the thread drop prevention portion has a plurality of twisting structures. A gauze body formed by having a warp along the longitudinal direction and a weft along the width direction alternately intersected and plain woven to have both ends in the longitudinal direction and both sides in the width direction, and both sides in the width direction of the gauze body A thread drop prevention portion formed along the edge portion, and the yarn drop prevention portion is arranged so that the weaving yarn is alternately arranged along the longitudinal direction from the front side of the warp yarn at both side edges in the width direction of the gauze body. A method for producing a gauze formed by a crease structure stretched on the back side of a weft,
A yarn disposing step of disposing continuous warps so as to form continuous portions where the continuous warps are positioned at approximately equal intervals in the width direction and gap portions where the continuous warps are not positioned;
A continuous gauze body forming step in which continuous wefts are arranged in a direction orthogonal to the continuous warp direction to form a plurality of rows of continuous gauze bodies so that plain weave portions are continuously formed in the longitudinal direction in the continuous part; ,
During the continuous gauze body forming step, a yarn removal preventing portion forming step for forming a continuous yarn removal preventing portion by forming a continuous weft and continuous warp structure at both side edge portions of the gap portion, and
A continuous gauze forming step of forming continuous gauze by cutting the continuous wefts at the gaps of the plurality of rows of continuous gauze bodies;
A gauze manufacturing method comprising: a winding step of winding each continuous gauze into a roll.

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