JP2013163880A - Raised fabric and method for producing the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a raised fabric and a method for manufacturing the fabric, in which the length of nap constituting a raised fabric portion can be uniformed.SOLUTION: The method for producing a raised fabric 1 comprises the steps of: raising a fiber on the front side of a fabric body 11 (fiber-raising step); then attaching a coating material 14 onto the rear side of the fabric body 11 having a protrusive portion to make the fabric rear face approximately flat (pretreatment step); and then evenly cutting nap constituting a raised fabric portion 13 formed at the fiber-raising step, using as a reference the fabric rear face being approximately flat after the pretreatment step (shearing step).

Description

  The present invention relates to a raised fabric in which a raised portion is formed on the surface of the fabric and a method for producing the same.

  Patent Document 1 below describes a fabric that can be suitably used as a seat cover for a vehicle seat or the like. In order to improve the texture as a cover, such a fabric may be subjected to a brushing process that stirs the fibers constituting the fabric as a finishing process and a shaving process that trims the raised part (raft) that has been raised (Patent Literature). 1 paragraph 0045).

JP 2010-247810 A

  The shaving process is performed by an apparatus as shown in FIG. 3, for example. The shaving device shown in FIG. 3 includes a head 21, a knife 22, and a spiral cutter 23. The fabric 9 to be shaved is fed from one side of the head 21 to the other side with tension applied by pressing the back surface of the fabric 9 against the tip of the head 21. By doing in this way, the wrinkle located in the opposite surface (front side) of the part pressed on the front-end | tip of the head 21 stands. The standing scissors are cut by being sandwiched between a knife 22 along the horizontal direction and a spiral cutter 23 located above the head 21. By adjusting the distance from the tip portion of the head 21 to the cutting portion by the knife 22 and the spiral cutter 23, the height of the ridge (raised portion) can be adjusted.

  The fabric described in Patent Document 1 described above has a conductive yarn (conductive wire 20) attached to the fabric body. As shown in FIG. 3, the conductive yarn 92 a becomes a protruding portion 92 that exists on the back side of the fabric body 91 constituting the fabric 9. When such a protruding portion 92 exists, there is a problem that the length of the ridges in the raised portion 93 is different. That is, in the apparatus as shown in FIG. 3, the length to be cut is determined based on the back side of the fabric that contacts the head 21, and if the protruding portion 92 as described above exists on the back side of the fabric body 91, 3 (a) and FIG. 3 (b), as can be seen, the cutting length at the location where the projecting portion 92 exists is longer than the other portion, that is, the location where the projecting portion 92 exists. There is a problem in that the length of the ridges constituting the raised portion 93 located on the opposite side of the wire is shorter than the other portions (the shortened portion is indicated by S in FIG. 3B).

  In view of the above circumstances, the problem to be solved by the present invention is to provide a raised fabric and a method for producing the raised fabric that can make the length of the ridges constituting the raised portion uniform.

  In order to solve the above problems, a raised fabric according to the present invention is a raised fabric in which a raised portion in which fibers constituting the fabric body are streaked is formed on the surface of the fabric, and a protruding portion is formed on the back side of the fabric body. The gist of the present invention is that the back surface of the fabric is substantially flat due to the covering material attached to the back side of the fabric body where the protruding portion is present.

  In this way, even if there is a protruding portion on the back side of the fabric body, if the back surface of the fabric is made substantially flat by the covering material, the cutting length of the wrinkles is determined in the shaving process. Since the surface to be formed is substantially flat, the length of the ridges of the raised portion becomes uniform.

  In this case, as an example of the fabric in which the projecting portion is present, a fabric in which the projecting portion is constituted by a conductive thread having conductivity attached to the fabric body can be cited.

  For example, a conductive yarn used as a heater wire that generates heat may be arranged on a fabric used as a seat cover for a vehicle seat, for example. Such a conductive yarn is often arranged near the back surface of the fabric because the possibility of disconnection increases when the configuration is arranged near the fabric surface. In this case, the conductive yarn becomes a protruding portion existing on the back side of the fabric main body, which may cause the length of the wrinkles to be uneven. According to the above configuration, the back surface of the fabric is substantially covered by the covering material. Since it is flat, the conductive yarn does not become the factor.

  Moreover, the said coating | covering material should just be a backing material which backs the said fabric main body.

  The covering material can act as a backing material for lining the fabric body (for example, a material that exhibits functions such as preventing fraying of the yarn constituting the fabric body or improving the strength of the fabric body). it can. That is, the above-mentioned covering material can function not only as a material that makes the length of the raised portion wrinkles uniform, but also as a backing material.

  In order to solve the above problems, a method for producing a raised fabric according to the present invention is a method for producing a raised fabric in which a raised portion in which fibers constituting the fabric body are streaked is formed on the surface of the fabric. A brushing process in which fibers on the front side of the main body are stiffened to raise wrinkles, a pretreatment process in which the back surface of the fabric main body where the protruding portions are present is made to be substantially flat by attaching a covering material, and this pretreatment process And a trimming step of trimming the lengths of the ridges constituting the raised portion formed in the raising step with reference to the back surface of the fabric that has become substantially flat after passing through.

  According to the above manufacturing method, even if there is a projecting portion on the back side of the fabric body, the back surface of the fabric becomes substantially flat by the pretreatment step, so that it becomes a reference for determining the cutting length of the wrinkles in the shaving step. The surface is substantially flat. That is, even when the protruding portion is present, the length of the ridges constituting the raised portion can be made uniform.

  In this case, a post-processing step of removing the covering material after the shaving step may be further included.

  In this way, the final raised fabric can be made supple. An example of the post-treatment step is a method of using a water-soluble material for the covering material and removing the covering material by melting it in water after the shaving step.

  In this case, as an example of the fabric in which the projecting portion is present, a fabric in which the projecting portion is constituted by a conductive thread having conductivity attached to the fabric body can be cited.

  According to the present invention, even if the protruding portion is formed on the back side of the fabric body, it is possible to remove the adverse effect caused by the protruding portion in the shaving process. That is, the length of the ridges constituting the raised portion formed on the fabric surface can be made uniform.

It is the figure which showed typically the cross section of the raised fabric concerning embodiment of this invention. It is a figure for demonstrating the shaving process in the manufacturing method of the raised fabric concerning embodiment of this invention, (a) is the state in which the head is located directly under a protruding part, (b) is a protruding part. This shows a state in which the head is in contact with a portion (covering material) where no is present. It is a figure for demonstrating the shaving process in the manufacturing method of the conventional raising fabric, Comprising: (a) is the state where the head is contacting the protruding part, (b) is the part where the protruding part does not exist This shows a state where the head is in contact.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. The raised fabric 1 according to the embodiment of the present invention includes a fabric main body 11 and a conductive yarn 12a, and a raised portion 13 in which fibers constituting the fabric main body 11 are streaked is formed on the surface of the fabric. As this type of fabric body 11, a fabric used as a seat cover for a vehicle seat will be described below as an example.

  The fabric body 11 is a base portion composed of a woven fabric, a knitted fabric, a nonwoven fabric or the like using a well-known thread. The raised portion 13 is formed by stiffening the fibers on one side (front side) of the fabric body 11 and raising the wrinkles.

  The conductive yarn 12a is formed in a thread shape from a conductive material. The material constituting the conductive yarn 12a is not limited to a specific material as long as it has conductivity. If the conductive yarn 12a is arranged near the fabric surface, there is a high possibility that the conductive yarn 12a will be broken during raising and trimming. That is, the conductive yarn 12 a is attached to the back side of the fabric body 11. The attachment method is not limited to a specific method. For example, the cloth body 11 may be sewn or attached by adhesion or the like. In a fabric used as a seat cover for a vehicle seat, the conductive yarn 12a functions as a heat ray (heater) that generates heat when energized, or detects whether a person is seated on the seat. It can function as an electrode of a sensor. The conductive yarn 12a is exposed from both sides of the fabric body 11 in the width direction, and is connected to a power source or the like using the exposed portion (see, for example, JP 2010-247810 A for such a connection structure). .

  As shown in FIG. 1, the conductive yarn 12 a attached to the back side of the fabric body 11 is a protruding portion that protrudes from the back side of the fabric body 11. That is, the fabric in a state where the conductive yarn 12a is attached to the fabric main body 11 has irregularities on the back surface thereof. In general, the conductive yarn 12a, which is a member to be energized, is thicker than the other yarns constituting the fabric body 11. In such a case, the protruding amount of the protruding portion becomes large. In the present embodiment, the covering material 14 is attached to the back side of the fabric body 11 so that the protruding portion does not affect the shaving process.

  The covering material 14 is attached so that the back surface of the raised fabric 1 is substantially flat. For example, as shown in FIG. 1, by attaching a covering material 14 having a thickness substantially the same as the length of the portion of the conductive yarn 12a protruding from the fabric body 11, the back surface of the covering material 14 and the backmost side of the conductive yarn 12a It is preferable that the back surface of the raised fabric 1 is substantially flat when the end portions are substantially flush. In this way, the back surface of the raised fabric 1 can be made substantially flat while increasing the thickness of the entire raised fabric 1 and suppressing the amount of the covering material 14 used. The back surface of the raised fabric 1 is configured to be substantially flat when the conductive yarn 12a is completely covered with the covering material 14 (the conductive yarn 12a is embedded in the covering material 14). May be.

  According to the raised fabric 1 according to the present embodiment described above, the back surface of the fabric, that is, the surface serving as a reference when the hair constituting the raised portion 13 is trimmed, is substantially flat. Can be trimmed (see the shaving process described below). In other words, it is possible to remove the adverse effects caused by the protruding portion 12 (conductive thread 12a) protruding from the back surface of the fabric body 11.

  Here, since the covering material 14 attached to the back side of the fabric body 11 is used as a backing material for lining the fabric body 11, it may be left without being removed or may be removed. The backing material exhibits functions such as preventing fraying of the yarn constituting the fabric body 11 and improving the strength of the fabric body 11. When the covering material 14 is to be used as a backing material, the covering material 14 may be formed using a well-known backing material such as resin, elastomer, rubber or the like. With such a configuration, the covering material 14 can be made to act as one that exhibits two functions of “a function of making the length of the ridges of the raised portions uniform” and “a backing function”.

  On the other hand, if the thick covering material 14 is used as it is as a backing material, the flexibility of the fabric required as a product may not be ensured. Thus, when it is desired to ensure the flexibility of the fabric (to remove the strength), the covering material 14 may be removed (see a post-processing step described later).

  Hereinafter, the manufacturing method (henceforth this manufacturing method) of the raised fabric concerning embodiment of this invention is demonstrated. The manufacturing method includes at least a raising step, a pretreatment step, and a hair cutting step described below.

  First, a raising process is performed in which the fibers on the front side of the fabric body 11 are stiffened to raise the wrinkles and form the raised portions 13 on the surface of the fabric. Since this raising process can use a known raising apparatus, detailed explanation is omitted. Next, a pretreatment process is performed in which the covering material 14 is attached to the back side of the fabric body 11 to which the conductive yarn 12a is attached. In the pretreatment step, the protruding portion 12 is not formed by the conductive yarn 12a due to the adhesion of the covering material 14. That is, the back surface of the fabric is made substantially flat.

  Note that the pretreatment step may be performed before the raising step. It is only necessary that the back surface of the fabric sent to the shaving step be flat by performing the pretreatment step before the shaving step described below. However, since it is necessary to perform a general raising process while extending the fabric in a predetermined direction, it is more preferable to perform a pretreatment process after the raising process so that the covering material 14 does not hinder the extension.

  Subsequently, for example, using a shaving device as shown in FIG. 2 (the same device as that shown in FIG. 3), a shaving step of trimming the length of the ridge is performed. The shaving apparatus shown in FIG. 2 includes a head 21, a knife 22, and a spiral cutter 23. The head 21 is a member that presses the back surface of the fabric in order to apply tension to the fabric. The head 21 positions the portion of the fabric to be shaved at a predetermined position. Specifically, the ridges constituting the raised portion 13 located on the opposite side of the portion pressed against the head 21 are cut. The scissors constituting the raised portion 13 are cut by being sandwiched between a knife 22 along the horizontal direction and a spiral cutter 23 located above the head 21. By adjusting the distance from the front end portion of the head 21 to the cutting portion by the knife 22 and the spiral cutter 23, the length of the wrinkle (raised portion 13) of the final product can be set to an arbitrary length. That is, the back surface of the fabric that contacts the tip of the head 21 serves as a reference surface that determines the length of the ridge.

  In this manufacturing method, the back surface of the fabric that becomes the reference surface in the pretreatment step is substantially flat. Therefore, even if the conductive yarn 12a (protruding portion 12) protruding from the back side of the fabric body 11 is present, the wrinkles of the raised portion 13 are trimmed to a certain length with reference to the back surface of the substantially flat fabric. It is done. That is, the cutting length in a state where the head 21 is located directly under the protruding portion as shown in FIG. 2A is a portion other than the protruding portion as shown in FIG. It is substantially the same as the cutting length in the state where the head 21 is in contact with the material. Specifically, the length of the fabric body 11 and the covering material 14 is subtracted from the distance between the back surface of the fabric contacting the tip of the head 21 and the cutting portion by the knife 22 and the spiral cutter 23.

  As described above, the covering material 14 can be used as a backing material for lining the fabric body 11. On the other hand, when it is desired to ensure the flexibility of the fabric, a post-treatment process for removing the covering material 14 may be performed after the shaving process. Various methods can be considered as a method of the post-processing step. For example, a method may be employed in which the covering material 14 is formed of a material that dissolves in a specific solvent, and after the shaving, the covering material 14 is removed with the solvent. As a specific example, a method of removing the covering material 14 by forming the covering material 14 with a water-soluble material (polyvinyl alcohol or the like) and washing it with water can be given.

  Even when the covering material 14 is removed in this way, when the fabric body 11 needs to be lined with a backing material, the use of the thick covering material 14 as a backing material in detail makes the fabric flexible. Therefore, when providing a backing layer (thin backing layer) that can ensure the required flexibility of the fabric, the backing layer is made of a material that does not dissolve in the specific solvent in which the coating material 14 dissolves. It is good to keep. In this way, the coating material 14 can be removed by dissolving the coating material 14 in the specific solvent while leaving the backing layer (which does not dissolve in the specific solvent) in the post-processing step.

  As mentioned above, although embodiment of this invention was described in detail, this invention is not limited to the said embodiment at all, A various change is possible in the range which does not deviate from the summary of this invention.

  For example, in the above-described embodiment, it has been described that the protruding portion 12 of the raised fabric 1 is configured by the conductive yarn 12a. However, any protruding portion 12 may be used as long as the protruding portion 12 exists on the back side of the fabric body 11. The member that causes the portion 12 is not limited to the conductive yarn 12a. For example, the present invention can also be applied to a fabric in which a fabric main body is constituted by a relatively thick thread and a relatively thin thread, and a relatively thick thread appearing on the back side of the fabric body forms a protruding portion.

  Moreover, although the said shaving process demonstrated performing using the shaving apparatus shown in FIG. 2, the said apparatus is an illustration to the last. In other words, the technical idea of the present invention can be applied as long as a shaving technique is adopted in which the lengths of the ridges constituting the raised portion 13 are trimmed with reference to the back surface of the fabric that is substantially flat by the covering material 14. is there. For example, you may use for the shaving process the apparatus which is shaved while a fabric is conveyed by the flat conveyance surface (belt) as described in Unexamined-Japanese-Patent No. 11-12918. This is because also in this apparatus, the back surface of the fabric that comes into contact with the flat conveyance surface serves as a reference surface for determining the length to be shaved.

DESCRIPTION OF SYMBOLS 1 Raised fabric 11 Fabric main body 12 Protruding part 12a Conductive thread 13 Raised part 14 Covering material

Claims (6)

A raised fabric in which a raised portion in which fibers constituting the fabric body are streaked is formed on the surface of the fabric,
A raised fabric having a projecting portion on the back side of the fabric body, and the back surface of the fabric being substantially flat by a coating material attached to the back side of the fabric body having the projecting portion. .   The raised fabric according to claim 1, wherein the protruding portion is composed of a conductive yarn having conductivity attached to the fabric body.   The raised fabric according to claim 1 or 2, wherein the covering material is a backing material for lining the fabric body. A method for producing a raised fabric in which a raised portion in which fibers constituting the fabric body are streaked is formed on the surface of the fabric,
A raising step of stiffening the fibers on the front side of the fabric body and raising wrinkles;
A pretreatment step of making the back surface of the fabric substantially flat by attaching a covering material to the back side of the fabric body where the protruding portion exists;
A shaving step of trimming the length of the ridges constituting the raised portion formed in the raising step with reference to the back surface of the fabric that has become substantially flat through this pretreatment step,
The manufacturing method of the raising fabric characterized by including this.   The method for producing a raised fabric according to claim 4, further comprising a post-treatment step of removing the covering material after the shaving step.   The method for producing a raised fabric according to claim 4 or 5, wherein the protruding portion is made of a conductive yarn having conductivity attached to the fabric body.

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