JP3769667B2 - Elastic tape body and clothing using the elastic tape body - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an elastic tape body and clothing using the elastic tape body.
[0002]
[Background Art and Problems to be Solved by the Invention]
Conventionally, for example, a rubber thread is attached along an opening edge of a leg opening portion and a waist portion which are stretchable portions of a pants-type paper diaper as clothing. Then, when the leg or waist of the person wearing the paper diaper is passed through the stretchable part, the rubber thread of the stretchable part is stretched by the leg or waist, and as a result, the stretchable part is placed on the leg or waist. Fit. However, since this rubber thread is composed of a single thread, the stretched rubber thread tends to bite into the skin of the legs and waist of the person wearing the paper diaper, which makes the person wearing the diaper feel a sense of pressure. Gave. In addition, since this rubber thread is easily broken when there is a tear, there is a possibility that the stretchability of the stretchable portion is impaired. Here, as a method for making the rubber thread difficult to cut, for example, a method of making the width and thickness direction of the rubber thread thick to make it difficult to cut can be considered, but the elastic part of the clothing becomes bulky because the rubber thread becomes thick. In addition to the above problem, there is a problem that the tightening force increases and further gives a feeling of pressure.
[0003]
The present invention has been made to solve the above-described conventional problems, and is to provide a stretchable tape body that is strong and excellent in stretchability.
[0004]
Another object of the present invention is to provide a garment using a stretchable tape body that includes a stretchable portion that suppresses a feeling of pressure and suppresses bulkiness.
[0005]
[Means for Solving the Problems]
In order to achieve the object, the stretchable tape body according to the present invention has the following configuration. That is,
The stretchable tape body according to the invention of claim 1 is adjacent to a welded portion in which a plurality of stretchable synthetic fiber yarns are arranged in parallel and the adjacent synthetic fiber yarns are welded to each other. Non-welded portions at which the synthetic fiber yarns are not welded are alternately formed along the longitudinal direction of the synthetic fiber yarns. As a result, the welded portions and the non-welded portions are alternately formed along the longitudinal direction of the synthetic fiber yarn, that is, the non-welded portions are intermittently formed along the longitudinal direction of the synthetic fiber yarn. become. In the welded portion of the stretchable tape body, since the synthetic fiber yarns are welded and deteriorated, the stretchability is impaired to some extent, but in the non-welded portion, the stretchability of the synthetic fiber yarns is lost. Not damaged. In addition, when a tensile load is applied to the elastic tape body, a plurality of synthetic fiber yarns forming the non-welded portion of the elastic tape body are extended, but the plurality of synthetic fiber yarns are also arranged in parallel in the non-welded portion. Since they are arranged, the tensile load is distributed almost evenly to the synthetic fiber yarns forming the non-welded portion. Therefore, since the tensile force applied to one synthetic fiber yarn is reduced, the stretchable tape body is difficult to cut.
[0006]
In addition, as in the stretchable tape body according to the second aspect of the present invention, it is desirable that the length of the non-welded portion is alternately formed so as to be longer than the length of the welded portion. As a result, the stretchable tape body has more non-welded portions where the stretchability of the synthetic fiber yarn is not impaired than the welded portions where the stretchability is impaired to some extent, and is formed alternately. Excellent in properties.
[0007]
Moreover, the clothing which concerns on invention of Claim 3 is a paper diaper, underwear, and other clothing using the elastic tape body of Claim 1 or 2. And the clothing is provided with elastic parts, such as a leg mouth part, a waist part, a cuff part, or a neck part, and the elastic tape body is arranged along the edge of the elastic part. According to this, by changing the number and thickness of the synthetic fiber yarns arranged in parallel, or by changing the synthetic fiber yarn itself to another synthetic fiber yarn having a different elasticity, the expansion and contraction of this elastic tape body is possible. Sex can be easily adjusted. And the stretchable tape body whose stretchability is appropriately adjusted is provided along the edge of the stretchable portion such as the leg mouth portion, the waist portion, the cuff portion or the neck portion of the disposable diaper, underwear and other clothing. By installing, knitting, or weaving, a non-welded portion that is a portion that reliably stretches is formed intermittently along the edge. As a result, an expansion / contraction portion that can be fit moderately and with a reduced feeling of pressure on the person wearing the clothing is formed. Even if the stretchable tape body is deployed, knitted, or woven on the stretchable portion of the garment, the stretchable tape body is in a tape shape, so that the stretchable portion is bulky. In addition, it becomes difficult to bite into the skin of a person wearing clothing.
[0008]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment of a stretchable tape body according to the present invention and a garment using the stretchable tape body will be described with reference to the drawings.
[0009]
Reference numeral 1 in the figure denotes a pants-type paper diaper as clothing. Reference numeral 2 denotes an elastic tape body used for the garment 2, for example, a plurality of elastic synthetic fiber yarns 3, 3 made of multi-filaments of polyurethane synthetic fiber having a thickness of 156 dtex. (4 in the illustrated embodiment) are arranged in parallel. In the stretchable tape body 2, welded portions 4 and non-welded portions 5 are alternately formed along the longitudinal direction of the synthetic fiber yarns 3 and 3. Of course, the thickness of the synthetic fiber yarn 3 is not limited to the above numerical value, but preferably the thickness is within the range of 44 to 780 dtex.
[0010]
The welded portion 4 is a portion in which the synthetic fiber yarns 3 and 3 are crushed and the adjacent synthetic fiber yarns 3 and 3 are welded to each other by applying heat and applying pressure. Moreover, in this welding part 4, since the synthetic fiber yarns 3 and 3 are welded and denatured, the stretchability which the synthetic fiber yarn 3 has is impaired to some extent.
[0011]
The non-welded portion 5 is a portion where adjacent synthetic fiber yarns 3 and 3 are not welded, and the length thereof is longer than the length of the welded portion 4. In the non-welded portion, the stretchability of the synthetic fiber yarn 3 is not impaired.
[0012]
The pants-type paper diaper as the garment 1 is a leg mouth part (sometimes referred to as a crotch part) which is a stretchable part (gather forming part) that forms an opening through which a human body such as a leg and a waist is passed. And a waist portion 7. Then, along the edge portions W, W of the leg mouth portions 6 and 6 and the waist portion 7, that is, along the peripheral portion, the stretchable tape bodies 2 and 2 having appropriately adjusted stretchability surround the opening. It is deployed (passing through the diaper 1a and attaching to the diaper 1a by adhesion). As a result, the non-welded portions 5 and 5, which are reliably expanded and contracted, are intermittently provided along the edge portions (peripheral portions) W and W at the leg mouth portion 6 and the waist portion 7 that are the opening and contracting portions. Formed. In the illustrated embodiment, each of the leg mouth portions 6 and 6 is provided with one elastic tape body 2, and the waist portion 7 is provided with two elastic tape bodies 2. However, it is not limited to these numbers.
[0013]
Next, the tape body manufacturing apparatus 8 which manufactures the elastic | stretch tape body 2 is demonstrated based on FIG. The tape body manufacturing apparatus 8 includes, for example, four yarn supply pipes 9 and 9 wound with a synthetic fiber yarn 3 and synthetic fiber yarns 3 and 3 fed from the yarn supply pipes 9 and 9 arranged in parallel. Heating and pressurizing means 10 for alternately forming the welded portions 4 and the non-welded portions 5 by heating and pressurizing in this state. The tape body manufacturing apparatus 8 includes a winding roller 11 for winding the stretchable tape body 2 in which the welded portions 4 and the non-welded portions 5 are alternately formed, which is sent from the heating and pressurizing means. . The heating and pressurizing means 10 is driven to rotate by driving the electric motor 10a and driven by a driving gear (spur gear) 12 heated by a heating body 10b such as a nichrome wire, and a driving gear by a load due to the weight of the weight 10c. It consists of a driven gear (spur gear) 13 that is urged in 12 directions and meshes with the driving gear 12 at a substantially constant pressure. In this embodiment, the tape body manufacturing apparatus 8 has, for example, the surface temperature of the drive side gear 12 set to approximately 210 degrees and the winding speed of the elastic tape body 2 of 15 meters / Set to minutes. Of course, if the winding speed of the elastic tape body is increased, the surface temperature of the drive side gear 12 needs to be set high. For example, when the winding speed is 30 meters / minute, the surface temperature is set to approximately 230 degrees, and when the winding speed is 50 meters / minute, the surface temperature is Is set to approximately 240 degrees.
[0014]
Next, manufacture of the elastic tape body 2 using the tape body manufacturing apparatus 8 having the above configuration will be described. When the tape body manufacturing apparatus 8 is operated, four synthetic fiber yarns 3 and 3 composed of multifilaments of polyurethane synthetic fibers are fed from the four yarn feeding pipes 9 and 9, and these synthetic fibers are fed. The yarns 3 and 3 are arranged in parallel through the alignment hole 8a and the rollers 8b and 8b arranged before and after the alignment hole 8a in the middle of being sent to the heating and pressurizing means 10. These synthetic fiber yarns 3 and 3 are passed between the driving side gear 12 and the driven side gear 13 of the heating and pressurizing means 10 in a state of being arranged in parallel. Then, pressure is applied to the synthetic fiber yarns 3 and 3 at a contact portion where the tooth surface of the tooth 12 a of the driving side gear 12 and the tooth surface of the tooth 13 a of the driven side gear 13 mesh with each other, and the heat of the driving side gear 12 is applied. And the adjacent synthetic fiber yarns 3 are welded together. Then, this welding is performed until the tooth surface of the tooth 12a of the driving side gear 12 and the tooth surface of the tooth 13a of the driven side gear 13 are engaged with each other until they are separated, and the adjacent synthetic fiber yarns 3, A weld portion 4 is formed in which the three are welded together. Further, when the synthetic fiber yarns 3 and 3 pass between the driving side gear 12 and the driven side gear 13 of the heating and pressurizing means 10, they do not pass through the contact portion, and the synthetic fiber yarns 3 and 3 have almost no pressure. A portion that is not applied is formed between the welded portions 4 and 4. This becomes the non-welded portion 5 of the stretchable tape body 2, and thus the non-welded portion 5 and the welded portion 4 are alternately formed. The stretchable tape body 2 in which the welded portions 4 and the non-welded portions 5 are alternately formed is sent to the take-up roller 11 by the feed rollers 8 c and 8 c and is taken up by the take-up roller 11. The ratio of the lengths of the welded portion 4 and the non-welded portion 5 can be adjusted by changing the design conditions of the drive side gear 12 and the driven side gear 13.
[0015]
According to the stretchable tape body 2 shown in the first embodiment, four synthetic fibers that form the non-welded portion 5 of the stretchable tape body 2 when a tensile load is applied to the stretchable tape body 2. Although the yarns 3 and 3 are stretched, the four synthetic fiber yarns 3 and 3 are arranged in parallel in the non-welded portion 5, so that the tensile load is applied to each synthetic fiber yarn 3 that forms the non-welded portion 5, 3 is almost evenly distributed. Therefore, the tensile force applied to each synthetic fiber yarn 3 becomes small and is difficult to cut. Moreover, the welded portions 4 and the non-welded portions 5 are alternately formed along the longitudinal direction of the synthetic fiber yarn 3, that is, the stretchable non-welded portions 5 are along the longitudinal direction of the synthetic fiber yarn 3. , Will be formed intermittently. Therefore, the elastic tape body 2 which is strong and excellent in elasticity can be obtained. Further, the stretchable tape body 2 has more non-welded portions 5 where the stretchability of the synthetic fiber yarn 3 is not impaired than the welded portions 4 where the stretchability is impaired to some extent, and is alternately formed. Therefore, it can be set as the elastic tape body which has the further outstanding elasticity.
[0016]
Moreover, according to the clothing 1 using the stretchable tape body 2, the leg mouth portion 6 and the waist portion 7 which are the stretchable portions provided in the pant-type paper diaper as the clothing have their edge portions (peripheral portions) W, W Since the stretchable tape bodies 2 and 2 are respectively provided along the non-welded portion 5 that is surely stretchable, the non-welded portion 5 is intermittently formed along the edge portions (peripheral portions) W and W. Has been. Accordingly, the pants-type paper diaper as the garment 1 is formed with a stretchable part that can be fit moderately with reduced feeling of pressure on the person wearing the garment 1. Moreover, since the elastic tape body 2 attached to the leg mouth part 6 and the waist part 7 which are the expansion / contraction parts of the garment 1 is in a tape shape, the expansion / contraction part is not bulky and the garment 1 is worn. It becomes difficult to bite into the person's skin. Therefore, it is possible to provide a pants-type paper diaper that includes the leg mouth portion 6 and the waist portion 7 that suppresses a feeling of pressure and suppresses bulkiness.
[0017]
In addition, the elastic | stretch tape body which concerns on this invention is not necessarily limited to embodiment mentioned above, Other various changes are possible. For example, the synthetic fiber yarn 3 is made of a multifilament of polyurethane synthetic fiber, but may be a monofilament, or may be another synthetic fiber yarn having different stretchability such as nylon, acrylic or tetron. Moreover, the number arranged in parallel may be changed to 2, 3, or 5 or more, and the thickness thereof may be changed as appropriate. Thus, the stretchability of the stretchable tape body 2 can be easily adjusted by changing the number and thickness of the parallel arrangement or changing the synthetic fiber yarn 3 itself.
[0018]
Further, the length of the non-welded portion 5 is longer than the length of the welded portion 4, but may be formed shorter than the length of the welded portion 4, or the non-welded portion 5. The weld portion 4 may have the same length.
[0019]
In addition, the clothing 1 may be other clothing such as a tape-type paper diaper, disposable pants, underwear, sweater, trousers, skirt, dress, vest or shirt other than the pants-type paper diaper. The stretchable portion of the garment 1 may be a stretchable portion such as a cuff portion or a neck portion other than the leg mouth portion 6 and the waist portion 7. Further, in the illustrated embodiment, the stretchable parts are the leg mouth part 6 and the waist part 7 which are stretchable parts that form openings through which the legs and waist are passed, but the stretchable parts are, for example, the waist (for example, , A part of the waist part that tightens a part of the side part (for example, the side part) may be a stretchable part that does not form an opening. Further, the stretchable tape body 2 may be provided by being attached, knitted, or woven by adhesion along the edge (peripheral edge) of the cuff portion or the neck portion.
[0020]
The stretchable tape body 2 is manufactured using the tape body manufacturing apparatus 8 using gears, but the welded portions 4 and the non-welded portions 5 are alternately formed along the longitudinal direction of the synthetic fiber yarn 3. If it can be performed, it may be manufactured using an apparatus using components other than gears.
[0021]
【The invention's effect】
According to Shin contraction tape member according to claim 1, the non-weld portion stretchable synthetic fiber yarn has is not compromised, along the longitudinal direction of the synthetic fiber yarn by intermittently formed, It can be made into an elastic tape body that is strong and excellent in elasticity.
[0022]
Moreover, according to the elastic | stretch tape body described in Claim 2, in addition, it can be set as the elastic | stretch tape body which has the further outstanding elasticity.
[0023]
Moreover, according to the clothing described in Claim 3, the clothing provided with the expansion-contraction part which suppressed the feeling of pressure and suppressed bulkiness can be provided.
[Brief description of the drawings]
FIG. 1 is a front view of a garment using an elastic tape body according to a first embodiment of the present invention.
FIG. 2 is a front view of the stretchable tape body according to the present invention.
FIG. 3 is a side view of the same.
FIG. 4 is a schematic view of an apparatus for producing a stretchable tape body according to the present invention.
FIG. 5 is an enlarged view of a part A in FIG. 4;
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Clothing 2 Elastic tape body 3 Synthetic fiber thread 4 Welding part 5 Non-welding part 6 Leg mouth part (elastic part)
7 Waist part (stretchable part)
W edge

Claims (3)

A plurality of synthetic fiber yarns having elasticity are arranged in parallel, and a welded portion where the adjacent synthetic fiber yarns are welded to each other, and a non-welded portion where the adjacent synthetic fiber yarns are not welded together The elastic tape body is characterized by being alternately formed along the longitudinal direction of the synthetic fiber yarns. The stretchable tape body according to claim 1, wherein the length of the non-welded portion is alternately formed so as to be longer than the length of the welded portion. A disposable diaper, underwear or other clothing using the elastic tape body according to claim 1 or 2,
The clothing is provided with stretchable parts such as a leg part, a waist part, a cuff part or a neck part,
The garment characterized in that the stretchable tape body is provided along an edge of the stretchable portion.

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