Method for repairing a mesh sheet for construction work

Abstract

To provide a method capable of easily repairing a mesh sheet for construction work without using the same kind of mesh sheet.SOLUTION: A repairing method laminates one piece of a thermosensitive adhesive woven fabric so as to cover a damaged portion of a mesh sheet for construction work, and heats and pressurize to paste the thermosensitive adhesive woven fabric. The thermosensitive adhesive woven fabric is a plain woven fabric using thermosensitive adhesive multifilament yarns for warp and weft. The thermosensitive adhesive multifilament yarn is obtained by bundling and twisting core-sheath composite filaments, a core component of which is a polyethylene terephthalate-based polymer and a sheath component of which is a copolyester with a melting point lower than that of the polyethylene terephthalate-based polymer. The heating and pressurization are carried out under a condition in which the sheath component of the thermosensitive adhesive woven fabric softens or melts, and the core component keeps an initial fiber form. Therefore, the thermosensitive adhesive woven fabric is pasted to the mesh sheet for construction work while keeping its woven fabric form.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] The present invention relates to a method for simply repairing a damaged part of a mesh sheet for construction work.

Background Art

[0002] Conventionally, when a damaged part such as a tear or a rip occurs in a mesh sheet for construction work, it has been repaired by sewing with a sewing machine. However, the size of the mesh sheet for construction work is generally several meters or more in both length and width, and it has been difficult to sew with a sewing machine. For example, when a damaged part occurs in the center of a mesh sheet for construction work, it has been impossible to bring a sewing machine needle to that location, and sewing has been difficult. For this reason, Patent Document 1 proposes the following method as a method for repairing a mesh sheet for construction work. That is, a mesh sheet of the same type as the mesh sheet for construction work is laminated on a damaged part of the mesh sheet for construction work through a low melting point polyester resin sheet of a mesh-like material or a non-woven fabric-like material, and the low melting point polyester resin is melted to fuse and bond the mesh sheet of the same type as the mesh sheet for construction work.

[0003] The low melting point polyester resin sheet used in this repair method completely melts during repair and flows along the warp or weft of the mesh sheet for construction work. Therefore, it is said that the eyes of the mesh sheet for construction work are not blocked and the original air permeability can be maintained (Patent Document 1, paragraph 0018). However, since the low melting point polyester resin sheet completely melts, a mesh sheet of the same type as the mesh sheet for construction work is always required. Therefore, there has been a case where it is difficult to procure a mesh sheet of the same type and emergency repair at a construction site cannot be performed.

[0004]

Patent Document 1

Disclosure of the Invention

Problems to be Solved by the Invention

[0005] An object of the present invention is to provide a method for easily repairing a mesh sheet for construction work without using the same kind of mesh sheet.

Means for Solving the Problems

[0006] The present invention solves the above problems by adopting a specific low-melting polyester resin sheet. That is, the present invention is a heat-sensitive adhesive multifilament yarn formed by converging a core-sheath composite filament in which the core component is a polyethylene terephthalate-based polymer and the sheath component is a copolymer polyester having a lower melting point than the polyethylene terephthalate-based polymer. It is a coarse-mesh plain weave fabric A step of preparing a heat-sensitive adhesive fabric, covering a damaged part of a mesh sheet for construction work, It has a mesh larger than that of the mesh sheet for construction work the above It is a coarse-mesh plain weave fabric A step of laminating a piece of the heat-sensitive adhesive fabric and heating and pressing a laminated portion of the piece of the heat-sensitive adhesive fabric and the mesh sheet for construction work, thereby softening or melting the sheath component in the piece of the heat-sensitive adhesive fabric, and the core component The present invention relates to a method for repairing a mesh sheet for construction work, characterized in that the piece of the heat-sensitive adhesive fabric and the mesh sheet for construction work are bonded while maintaining the original fiber form.

[0007] First, the heat-sensitive adhesive fabric prepared in the present invention will be described. This heat-sensitive adhesive fabric is formed by weaving heat-sensitive adhesive multifilament yarns as warp and weft. The weave structure is In a plain weave structure , a plain weave fabric. Also, the mesh size of the heat-sensitive adhesive fabric is larger than that of the mesh of the mesh sheet for construction work. This is because if the mesh of the heat-sensitive adhesive fabric is small, the ventilation of the mesh sheet for construction work will be reduced at the repair part.

[0008] The heat-sensitive adhesive multifilament yarn is formed by bundling core-sheath type composite filaments. Preferably, the core-sheath type composite filaments are bundled and twisted. The fineness of the core-sheath type composite filament is about 5 to 15 decitex, and the number of bundled filaments is about 30 to 200. Also, the number of twists when applying twist is about 50 to 200 turns / m. The total fineness of the heat-sensitive adhesive multifilament yarn is about 250 to 1500 decitex. However, when a plain fabric is woven using such heat-sensitive adhesive multifilament yarns as warp and weft, if the warp density and weft density are 10 to 15 threads / inch, a coarse plain fabric can be obtained, and its mesh is generally larger than that of a mesh sheet for construction work.

[0009] In the core-sheath type composite filament, the core component is a polyethylene terephthalate-based polymer, and the sheath component is a copolymerized polyester having a melting point lower than that of the polyethylene terephthalate-based polymer. The melting point of the polyethylene terephthalate-based polymer is about 255°C, and the melting point of the copolymerized polyester is about 120 to 190°C.

[0010] Cut the prepared heat-sensitive adhesive fabric and take out a piece sized to cover the damaged part of the mesh sheet for construction work. With this piece, laminate it so as to cover the damaged part of the mesh sheet for construction work. Then, apply heat and pressure to the laminated part using an iron, an electric iron, etc. Repair can be easily performed using a household iron or an electric iron used at a construction site. The heating temperature may be such that the copolymerized polyester softens or melts, specifically about 100 to 200°C.

[0011] When heat and pressure are applied, the sheath component of the core-sheath composite filament in the heat-sensitive adhesive multifilament yarn that constitutes the heat-sensitive adhesive fabric softens or melts and adheres to the mesh sheet for construction work. On the other hand, the core component of the core-sheath composite filament remains in its original fiber form. Therefore, the heat-sensitive adhesive fabric adhered to the mesh sheet for construction work maintains its form by the core component, and the damaged part of the mesh sheet for construction work is covered by the fabric. Thus, even without procuring a mesh sheet of the same type as the mesh sheet for construction work, the damaged part can be repaired with the fabric composed of the core component.

[0012] As the mesh sheet for construction work, conventionally known ones can be used. In the present invention, in particular, it is preferable to use a fabric of a twill weave that is excellent in ventilation and less likely to form eyelets. Here, the fabric of a twill weave means that its weaving structural unit is composed of three or more weft yarns and two warp yarns, and at the intersection of the weft yarn and the warp yarn, it is a plain weave, and the two warp yarns are tied at the exits of the three or more weft yarns. Specifically, if a fabric of a twill weave with three weft yarns is illustrated, it is as shown in FIG. 1. Also, the structure surrounded by the ellipse in FIG. 1 is the weaving structural unit 1. Explaining using this weaving structural unit 1, at the intersections of the weft yarns 2a, 2b, 2c and the warp yarns 3a, 3b, it is a plain weave, and at the exits (the exits in the direction woven into a plain weave) where the warp yarns 3a, 3b do not intersect with the weft yarns 2a, 2b, 2c, the warp yarns 3a, 3b are tied. And the one in which this weaving structural unit 1 is continuous horizontally and vertically is the fabric of a twill weave. As can be seen from FIG. 1, when the tied warp yarns 3a, 3b are continuous horizontally, a gap 4 is generated, resulting in a mesh sheet for construction work with good ventilation. In addition, as the fabric of a twill weave, in addition to those with three weft yarns, those with five or seven weft yarns are common.

[0013] In the present invention, it is particularly preferable to use a heat-fusible multifilament yarn as the weft yarn of the fabric of the basket weave. As can be seen from FIG. 1, in the fabric of the basket weave, three or more weft yarns are in close contact. When these weft yarns are heat-fusible multifilament yarns, the adhesion to the heat-sensitive adhesive fabric becomes strong. As the heat-fusible multifilament yarn, a core-sheath type composite filament composed of a core component made of a high-melting polymer and a sheath component made of a low-melting polymer is preferably bundled. In particular, it is preferable that the core component is a polyethylene terephthalate-based polymer with good weather resistance, and the sheath component is a copolymerized polyester with a lower melting point than the polyethylene terephthalate-based polymer. This sheath component is of the same type as the sheath component of the core-sheath type composite filament used in the heat-sensitive adhesive fabric, because the adhesion between the mesh sheet for construction work and the heat-sensitive adhesive fabric becomes stronger.

[0014] The mesh sheet for construction work is preferably flame-retardant in order to prevent the risk of fire at the construction site. To make the mesh sheet for construction work flame-retardant, a flame-retardant resin may be used as a raw material. For example, the polyethylene terephthalate-based polymer and / or the copolymerized polyester may be made flame-retardant. Specifically, a flame retardant may be mixed in the polymer, or a flame-retardant compound such as a phosphorus compound may be copolymerized in the polymer molecule.

[0015] The repair method of the mesh sheet for construction work according to the present invention can be repaired only with a heat-sensitive adhesive fabric without procuring the same type of mesh sheet. However, when the same type of mesh sheet can be procured, it can also be used for repair. The repair method in this case is as follows. That is, a heat-sensitive adhesive multifilament yarn formed by bundling a core-sheath type composite filament in which the core component is a polyethylene terephthalate-based polymer and the sheath component is a copolymerized polyester with a lower melting point than the polyethylene terephthalate-based polymer is woven. It is a coarse-mesh plain weave fabric A step of preparing a heat-sensitive adhesive fabric, covering the damaged part of the mesh sheet for construction work, It has a mesh larger than that of the mesh sheet for construction work the above It is a coarse-mesh plain weave fabricA step of laminating one piece of the heat-sensitive adhesive fabric, a step of laminating a reinforcing mesh fabric so as to cover one piece of the heat-sensitive adhesive fabric, and heating and pressing the laminated portion of the reinforcing mesh fabric, the one piece of the heat-sensitive adhesive fabric, and the mesh sheet for construction work, thereby softening or melting the sheath component in the one piece of the heat-sensitive adhesive fabric, while maintaining the core component in its original fiber form, and bonding the reinforcing mesh fabric and the mesh sheet for construction work through the heat-sensitive adhesive fabric.

[0016] As the reinforcing mesh fabric, any mesh fabric can be adopted as long as it is difficult to inhibit the ventilation of the mesh sheet for construction work. Preferably, a fabric having the same texture as the mesh sheet for construction work is preferably adopted. For example, if the mesh sheet for construction work is a fabric of a twill weave, a fabric of the same twill weave is preferably used as the reinforcing mesh fabric. Specifically, a fabric of a twill weave, as the weft yarn, a core-sheath type composite filament in which the core component is a polyethylene terephthalate-based polymer and the sheath component is a copolymer polyester having a lower melting point than the polyethylene terephthalate-based polymer is converged to form a heat-fusible multifilament yarn is preferably used. This is because the bonding between the reinforcing mesh fabric and the heat-sensitive adhesive fabric becomes stronger.

[0017] The method for repairing the mesh sheet for construction work according to the present invention can be easily carried out at a construction site using an iron, an electric iron, etc., as long as a heat-sensitive adhesive fabric is always available. Of course, repair can also be carried out at a repair factory or a manufacturing factory of the mesh sheet for construction work.

Advantages of the Invention

[0018] The heat-sensitive adhesive fabric used in the method for repairing a mesh sheet for construction work according to the present invention is woven from a heat-sensitive adhesive multifilament yarn formed by bundling polyester-based core-sheath composite filaments. Even after the sheath component is softened or melted and heat-sensitive adhesion is performed, the multifilament yarn maintains its form by the core component that maintains the fiber form, and the fabric maintains its form. Therefore, even without procuring a mesh sheet of the same type as the mesh sheet for construction work, there is an effect that the mesh sheet for construction work can be repaired in a state where the fabric by the core component is bonded.

Example

[0019] [Mesh Sheet 1 for Construction Work] (Preparation of Weft Yarn) Two bundles of 192 core-sheath composite filaments with a fineness of 8.7 dtex (core-sheath mass ratio: core component = 2.7 / sheath component = 1.0), where the core component is a flame-retardant polyethylene terephthalate-based polymer (melting point 255°C) and the sheath component is a crystalline copolyester (melting point 160°C), were twisted together at a twist count of 80 turns / m to obtain a twisted yarn. This twisted yarn was prepared as the weft yarn. The flame-retardant polyethylene terephthalate-based polymer is obtained by copolymerizing polyethylene terephthalate with a phosphorus compound in an amount of 1% by mass or less.

[0020] (Preparation of Warp Yarn) One hundred and forty single-phase filaments with a fineness of 13 dtex made of a flame-retardant polyethylene terephthalate-based polymer (melting point 255°C) were bundled and twisted at a twist count of 80 turns / m and prepared as the warp yarn. The flame-retardant polyethylene terephthalate-based polymer is obtained by copolymerizing polyethylene terephthalate with a phosphorus compound in an amount of 1% by mass or less.

[0021] Using the prepared weft yarns and warp yarns, a three-ply fabric was woven in the weaving structure shown in FIG. 1 to obtain a three-ply fabric. This fabric was heat-treated at 170° C. for 43 seconds to obtain a mesh sheet 1 for construction work. The mesh sheet 1 for construction work had a warp density of 25.4 yarns / inch and a weft density of 12.7 yarns / inch. Further, the sheath component of the weft yarn was melted and solidified to form a heat-sealed multifilament yarn in which the core-sheath type composite filaments were integrated with each other, and it was fused at the intersections with the warp yarns.

[0022] [Mesh Sheet 2 for Construction Work] (Preparation of Weft Yarns) An aggregate in which 192 core-sheath type composite filaments with a fineness of 8.7 dtex (core-sheath mass ratio: core component = 2.7 / sheath component = 1.0), where the core component is a flame-retardant polyethylene terephthalate-based polymer (melting point 255° C.) and the sheath component is a crystalline copolyester (melting point 160° C.), were bundled, and an aggregate in which 140 polyethylene terephthalate filaments with a fineness of 7.1 dtex were bundled were twisted together at a twist count of 80 turns / m to obtain a twisted yarn. This twisted yarn was prepared as the weft yarn. The flame-retardant polyethylene terephthalate-based polymer is the same as that used to obtain the mesh sheet 1 for construction work. (Preparation of Warp Yarns) The same warp yarns as those used to obtain the mesh sheet 1 for construction work were prepared.

[0023] Using the prepared weft yarns and warp yarns, a three-ply fabric was woven in the weaving structure shown in FIG. 1 to obtain a three-ply fabric. This fabric was heat-treated at 170° C. for 43 seconds to obtain a mesh sheet 2 for construction work. The mesh sheet 2 for construction work had a warp density of 25.4 yarns / inch and a weft density of 14.4 yarns / inch. Further, the sheath component of the weft yarn was melted and solidified to form a heat-sealed multifilament yarn in which the core-sheath type composite filaments were integrated with each other and with the polyethylene terephthalate filaments, and it was fused at the intersections with the warp yarns.

[0024] [Mesh Sheet 3 for Construction Work] (Preparation of Weft Yarns) The weft yarn used to obtain the mesh sheet 1 for construction work was taken as the first twisted yarn. Also, an aggregate in which 140 polyethylene terephthalate filaments with a fineness of 13 decitex were bundled was twisted together at a twist count of 80 turns / m to obtain a second twisted yarn. The first twisted yarn and the second twisted yarn were prepared as weft yarns. (Preparation of warp yarns) The same warp yarns as those used to obtain the mesh sheet 1 for construction work were prepared.

[0025] Using the prepared weft yarns and warp yarns, a fabric with a three - harness weave structure shown in FIG. 1 was woven to obtain a three - harness fabric. At this time, the second twisted yarn was used as the weft yarns 2a and 2c, and the first twisted yarn was used as the weft yarn 2b. This fabric was heat - treated at 190 °C for 43 seconds to obtain a mesh sheet 3 for construction work. The mesh sheet 3 for construction work had a warp density of 25.4 yarns / inch and a weft density of 16.1 yarns / inch. Also, the sheath component of the weft yarn 2b was melted and solidified, and it became a heat - fused multifilament yarn in which the core - sheath type composite filaments were integrated with each other, and it was fused with the weft yarns 2a and 2c and further fused at the intersections with the warp yarns.

[0026] [Mesh sheet 4 for construction work] (Preparation of weft yarns) The weft yarn used to obtain the mesh sheet 2 for construction work was taken as the first twisted yarn. Also, an aggregate in which 140 polyethylene terephthalate filaments with a fineness of 13 decitex were bundled was twisted together at a twist count of 80 turns / m to obtain a second twisted yarn. The first twisted yarn and the second twisted yarn were prepared as weft yarns. (Preparation of warp yarns) The same warp yarns as those used to obtain the mesh sheet 1 for construction work were prepared.

[0027] Using the prepared weft yarns and warp yarns, a three-ply fabric was woven in the weaving structure shown in FIG. 1. At this time, second-twisted yarns were used as the weft yarns 2a and 2c, and a first-twisted yarn was used as the weft yarn 2b. This fabric was heat-treated at 190° C. for 43 seconds to obtain a mesh sheet 4 for construction work. The mesh sheet 4 for construction work had a warp density of 25.4 yarns / inch and a weft density of 17.8 yarns / inch. Further, the sheath component of the weft yarn 2b was melted and solidified, and it became a heat-sealed multifilament yarn in which between the core-sheath type composite filaments and between the core-sheath type composite filament and the polyethylene terephthalate filament were integrated, and it was fused with the weft yarns 2a and 2c, and further fused at the intersections with the warp yarns.

[0028] [Mesh Sheet 5 for Construction Work] (Preparation of Weft Yarn) The second-twisted yarn used to obtain the mesh sheet 3 for construction work was prepared as the weft yarn. (Preparation of Warp Yarn) The same warp yarn as that used to obtain the mesh sheet 1 for construction work was prepared.

[0029] Using the prepared weft yarns and warp yarns, a three-ply fabric was woven in the weaving structure shown in FIG. 1. This fabric was heat-treated at 190° C. for 43 seconds to obtain a mesh sheet 5 for construction work. The mesh sheet 5 for construction work had a warp density of 25.4 yarns / inch and a weft density of 17.8 yarns / inch. Note that both the warp yarns and the weft yarns were single-phase filaments made of a polyethylene terephthalate-based polymer, and no heat-sealed multifilament yarn was produced.

[0030] Example 1 [Preparation of Heat-Sensitive Adhesive Fabric] A core-sheath composite filament with a fineness of 8.6 dtex, where the core component is polyethylene terephthalate (melting point 255 °C) and the sheath component is a copolyester (melting point 160 °C) (core-sheath mass ratio: core component = 2.7 / sheath component = 1.0), was twisted at a twist count of 100 turns / m to form a twisted yarn. This twisted yarn was used as the warp and weft, and a plain fabric with a warp density of 12.7 threads / inch and a weft density of 12.7 threads / inch was woven. This plain fabric was made into a heat-sensitive adhesive fabric.

[0031] A piece of a predetermined size cut from the above-mentioned heat-sensitive adhesive fabric was laminated on a construction mesh sheet 1, and using a heat press machine, it was heated and pressed under the conditions of a temperature of 180 °C, a pressure of 1.9 kN / m2, and a time of 4 minutes to bond the two together. The mesh of the heat-sensitive adhesive fabric was larger than that of the construction mesh sheet 1 and did not impede the ventilation of the construction mesh sheet 1. Then, this bonded product was cut into a width of 50 mm and a length of 200 mm (out of this length, 100 mm was the bonded part and 100 mm was the unbonded part), and test pieces were collected. For this test piece, two types were collected with the longitudinal direction as the warp direction and the longitudinal direction as the weft direction for the construction mesh sheet 1. And for each test piece, the peel strength (N / 50 mm width) in the warp direction and the peel strength (N / 50 mm width) in the weft direction were measured by the following measurement method, and the results are shown in Table 1.

[0032] [Measurement method of peel strength (N / 50 mm width)] One end of the construction mesh sheet 1 and one end of the heat-sensitive adhesive fabric at the unbonded part of the test piece were gripped with a chuck, and pulled under the conditions of a gripping interval of 30 mm and a pulling speed of 100 mm / min to obtain a stress-strain curve, and the maximum value of this was taken as the peel strength (N / 50 mm width). The equipment used was an autograph AG-1 manufactured by Shimadzu Corporation.

[0033] Examples 2 to 5 Except for using the mesh sheets for construction work 2 to 5 instead of the mesh sheet for construction work 1, the peel strength in the warp direction (N / 50 mm width) and the peel strength in the weft direction (N / 50 mm width) were measured in the same manner as in Example 1, and the results are shown in Table 1.

[0034] [Table 1] ━━━━━━━━━━━━━━━━━━━━━━━━━━━━ Peel strength in warp direction Peel strength in weft direction ━━━━━━━━━━━━━━━━━━━━━━━━━━━━ Example 1 67.8 42.8 Example 2 29.8 29.1 Example 3 22.8 23.8 Example 4 22.2 17.8 Example 5 9.2 12.1 ━━━━━━━━━━━━━━━━━━━━━━━━━━━━

[0035] Example 6 The mesh sheet for construction work 1, a piece of the heat-sensitive adhesive fabric used in Example 1, and a reinforcing mesh fabric covering this piece (this reinforcing mesh fabric is the fabric from which the mesh sheet for construction work 1 was obtained) were laminated in this order, and heating and pressing were performed under the same conditions as in Example 1 to obtain a bonded product. This bonded product was cut into a width of 50 mm and a length of 200 mm (out of this length, 100 mm was the bonded part and 100 mm was the unbonded part), and test pieces were taken. One end of the mesh sheet for construction work 1 and one end of the reinforcing mesh fabric at the unbonded part of this test piece were gripped with a chuck, and the peel strength in the warp direction (N / 50 mm width) and the peel strength in the weft direction (N / 50 mm width) were measured under the same conditions as in Example 1, and the results are shown in Table 2.

[0036] Examples 7 to 10 Except for using the mesh sheets for construction work 2 to 5 instead of the mesh sheet for construction work 1, the peel strength in the warp direction (N / 50 mm width) and the peel strength in the weft direction (N / 50 mm width) were measured in the same manner as in Example 6, and the results are shown in Table 2.

[0037] [Table 2] ━━━━━━━━━━━━━━━━━━━━━━━━━━━━ Peeling strength in the warp direction, Peeling strength in the weft direction ━━━━━━━━━━━━━━━━━━━━━━━━━━━━ Example 6 67.9 44.2 Example 7 34.4 25.0 Example 8 36.0 21.8 Example 9 26.5 16.6 Example 10 8.4 11.1 ━━━━━━━━━━━━━━━━━━━━━━━━━━━━

[0038] From the results of Table 1 and Table 2, it can be seen that the bonded products obtained in Examples 1 to 4 and Examples 6 to 9, in which heat-fusible multifilament yarns were used for the weft of the construction mesh sheet made of a twill weave fabric, are more firmly bonded between the construction mesh sheet and the heat-sensitive adhesive fabric or the reinforcing mesh fabric than the bonded products obtained in Example 5 and Example 10 where no heat-fusible multifilament yarns were used.

Brief Description of Drawings

[0039]

Figure 1

Explanation of Signs

[0040] 1 Weaving structure unit 2a, 2b, 2c Weft yarns 3a, 3b Warp yarns 4 Gap

Claims

1. A step of preparing a heat-sensitive adhesive fabric, which is a coarse plain weave fabric woven from a heat-sensitive adhesive multifilament yarn formed by gathering a core-sheath composite filament, wherein the core component is a polyethylene terephthalate-based polymer and the sheath component is a copolymerized polyester having a lower melting point than the polyethylene terephthalate-based polymer, A step of laminating a piece of the heat-sensitive adhesive fabric, which is a coarse plain weave fabric having a larger mesh size than the mesh of the construction work mesh sheet, so as to cover the damaged portion of the construction work mesh sheet, and A method for repairing a construction work mesh sheet, characterized in that by heating and pressing the laminated portion of the piece of the heat-sensitive adhesive fabric and the construction work mesh sheet, the sheath component in the piece of the heat-sensitive adhesive fabric is softened or melted, and the core component maintains its original fiber form, and the piece of the heat-sensitive adhesive fabric and the construction work mesh sheet are bonded together.

2. A step of preparing a heat-sensitive adhesive fabric, which is a coarse plain weave fabric woven from a heat-sensitive adhesive multifilament yarn formed by gathering a core-sheath composite filament, wherein the core component is a polyethylene terephthalate-based polymer and the sheath component is a copolymerized polyester having a lower melting point than the polyethylene terephthalate-based polymer, A step of laminating a piece of the heat-sensitive adhesive fabric, which is a coarse plain weave fabric having a larger mesh size than the mesh of the construction work mesh sheet, so as to cover the damaged portion of the construction work mesh sheet, A step of laminating a reinforcing mesh fabric so as to cover the piece of the heat-sensitive adhesive fabric, and A method for repairing a construction work mesh sheet, characterized in that by heating and pressing the laminated portion of the reinforcing mesh fabric, the piece of the heat-sensitive adhesive fabric and the construction work mesh sheet, the sheath component in the piece of the heat-sensitive adhesive fabric is softened or melted, and the core component maintains its original fiber form, and the reinforcing mesh fabric and the construction work mesh sheet are bonded together through the heat-sensitive adhesive fabric.

3. The method for repairing a construction work mesh sheet according to claim 1 or 2, wherein the construction work mesh sheet is a fabric of a leno weave, and at least as a weft yarn, it contains a heat-fusible multifilament yarn formed by gathering a core-sheath composite filament, wherein the core component is a polyethylene terephthalate-based polymer and the sheath component is a copolymerized polyester having a lower melting point than the polyethylene terephthalate-based polymer.

4. The reinforcing mesh fabric is a fabric of a twill weave, and at least as a weft yarn, a core-sheath type composite filament in which the core component is a polyethylene terephthalate-based polymer and the sheath component is a copolymerized polyester having a lower melting point than the polyethylene terephthalate-based polymer is converged. The method for repairing a mesh sheet for construction work according to claim 2, which contains a heat-fusible multifilament yarn.

5. A thermosensitive adhesive fabric used in the method for repairing a mesh sheet for construction work according to claim 1 or 2, which is a plain weave fabric with a coarse weave having a mesh larger than that of the mesh sheet for construction work, woven with a thermosensitive adhesive multifilament yarn in which a core-sheath type composite filament in which the core component is a polyethylene terephthalate-based polymer and the sheath component is a copolymerized polyester having a lower melting point than the polyethylene terephthalate-based polymer is converged.

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