TW201424615A - Fastener capable of resisting tear propagation - Google Patents

Abstract

A fastener capable of resisting tear propagation is disclosed. The fastener includes a plastic body and a textile body. The plastic body has a first surface and a second surface facing away from the first surface. The textile body has a third surface and a forth surface facing away from the third surface. The first surface is disposed of several parts for fastening. The second surface is discontinuously adhered to the third surface to form a plurality of discontinuous adhesion points.

Description

Anti-crack propagation adhesive tape

The present invention relates to a refastenable adhesive tape, and more particularly to a tear resistant adhesive tape.

Velcro tape, commonly known as "Devil Dip", can be used in related products such as ready-to-wear, shoes, sphygmomanometers, cloth bags, chair covers, etc., and can be described as widely used.

Referring to FIG. 1A, a known fastening tape 10 comprises a hook surface 11 having a plurality of hooks 111 and a matte surface 12 having a plurality of loops 121, when the hook surface 11 and the matte surface are When the press is pressed, the hook body 111 will hook the loop 121 so that the two are fastened together. When the hook body 111 and the loop 121 are to be separated, a tearing force Pa is applied to make the matte surface 12 and the hook. Face 11 is separated and so reusable.

The hook surface 11 and the matte surface 12 of the fastening tape 10 shown in FIG. 1A are attached to a belt body, and are respectively fixed to a specific object such as the seat cushion 14 and the leather surface 13 matched with the seat cushion 14 by means of sewing. On the top, a fixed object 1 is formed. However, the assembly of the fastening tape 10 by the sewing method is bound to cause a gap at the stitches 112 and 122, and the stitching process is repeated after a period of time. The gaps of 112 and 122 are reversed due to the repetitive pulling force, which causes cracks in the long-term, so that the gaps of the stitches 112 and 122 are enlarged, and the result is that the belt attached to the hook surface 11 or the matte surface 12 is detached from the object. And causing damage to the structure of the fastening tape 10 itself, and even letting the hook surface 11 or the matte surface 12 fall off from the attached tape body, resulting in shortening of the service life of the product.

Therefore, referring to FIG. 1B, a fastening tape 2 is proposed, which uses a plastic film 22 as a supporting substrate having a hook surface or a matte surface of the fastening member 221, and attaches the hook surface or the matte surface to the bonding surface to the hook surface or the matte surface. A woven fabric 21 is adhered to the plastic film 22 on the other side of the plastic film 22 to which the hook surface or the matte surface is not attached. By the toughness provided by the characteristics of the fiber overlap weaving of the textile 21, the adhesive tape produced in this way is not easily caused by the repeated tearing process, and because of the tearing force Pb and Pc And let the gap expand.

However, when the notch 23 is formed at the edge of the plastic film 22, since the molecular arrangement direction of the plastic film 22 is uniform, when the notch is further torn, the crack at the notch will propagate along the molecular arrangement direction of the plastic film, resulting in plastic. The film 22 and the woven fabric 21 fiber 211 will still be easily torn, causing damage to the fastening tape structure. In addition, the use of a large amount of adhesive will also bring about an increase in cost.

Therefore, it is a problem to be solved by those skilled in the art how to make a fastening tape which is less susceptible to damage and which can block the spread of cracks and at the same time reduce the manufacturing cost.

Therefore, the object of the present invention is to provide a fastening tape which is fixed by a plastic substrate and a textile substrate with an irregularly dispersed adhesive bond to improve the adhesion of the plastic substrate and the textile substrate. The buckle has the properties of needle-resistant and sewn, and provides a fastening tape with anti-crack propagation characteristics.

Another object of the present invention is to provide a method for manufacturing a fastening tape, which is provided with a belt of a textile material bonded to a plastic material, and a matte or hook surface is formed on the plastic material. In order to make a fastening tape by using the belt material of the textile material and the plastic material. At the same time, the plastic material belt and the textile belt are fixed by the irregularly dispersed adhesive, so that the produced adhesive tape has the property of resisting crack propagation.

Another object of the present invention is to provide a fastening tape which can be attached to a textile substrate and a plastic substrate by means of an irregularly dispersed adhesive bond to reduce the amount of the adhesive to reduce the manufacturing cost and the time cost.

Based on the above object, the present invention provides a crack-resistant adhesive tape comprising a first tape body comprising a plastic material, a second tape body of a textile material, the first tape body having a first surface disposed opposite to each other And the second surface, the second strip has a third surface and a fourth surface disposed opposite to each other, the first surface is configured with a plurality of fasteners, the third surface of the second strip and the first strip There is a plurality of bonds that are firmly adhered between the second surfaces, and the bonds are discontinuous.

According to an embodiment of the present invention, when the distance between any two adjacent bonding points is 0.4-0.6 cm, the crack at the notch of the fastening tape is resisted by the overlapping fibers of the second tape of the textile material, and cannot be propagated. There is no disadvantage of the first belt of the plastic material and the second belt of the textile material being broken.

The present invention can provide the following advantages: 1. The first belt body and the second belt body are adhered in a manner of irregularly dispersed recesses, and the overlapping fibers of the second belt body are effectively utilized to resist the crack propagation. 2. The first strip body and the second strip body are adhered in a manner of irregularly dispersed recesses, which can reduce the amount of adhesive and wait for the adhesive to mature, reducing manufacturing and time costs. 3. The first belt and the second belt are made of a Velcro tape that can resist pinning and sewing.

The detailed embodiments of the present invention are disclosed herein, however, it is to be understood that the disclosed embodiments are only exemplary of the invention, In addition, the drawings drawn in the present invention are for illustrative purposes only, and are primarily intended to illustrate the preferred embodiments of the invention. The scope of the invention to be protected is defined by the scope of the appended claims.

The invention provides a Velcro tape which is resistant to crack propagation, and the advantages thereof can increase the characteristics of the fastener tape against pinning and sewing, prolong the service life of the product, and the manufacturing method of the fastening tape can save manufacturing cost and time. The above detailed description of the preferred embodiments of the invention will be apparent in the

The following definitions clarify the meaning of the nouns used in this specification.

A noun such as "first belt" or the like may be used to describe a substrate such as a fastening member for a fastening tape and other attachment substrates conventionally used for the fastening tape.

A noun such as "second strip" or the like may describe an element having two surfaces, the two surfaces being opposite each other, and at least one surface being adhered to the surface of one of the first strips carrying the fastener as reinforcement The use of the first belt strength.

Referring to FIG. 2A, a crack-resistant adhesive tape 3 according to an embodiment of the present invention includes a first tape body 31 and a second tape body 32, wherein the first tape body 31 has a first surface disposed opposite to each other. 311 and the second surface 312, and the second strip 32 has a third surface 321 and a fourth surface 322 disposed opposite to each other, the first surface 311 is configured with a plurality of fasteners 3111, and the second surface 312 and the third surface The 321 is adhered to each other, and the third surface 321 of the second strip 32 and the second surface 312 of the first strip 31 have a plurality of discontinuous and firmly adhered bonds. The adhesion may be a plurality of discretely distributed recesses 3112 on the first surface 311 of the first strip 31 or a plurality of discontinuously distributed protrusions (not shown) on the second surface 312, and corresponding The third surface 321 of the second strip body 32 has a plurality of discrete portions 3221 or a plurality of convex portions (not shown) on the fourth surface 322 which are discontinuously distributed. In other words, where the recess 3112 is provided, the second surface 312 and the third surface 321 are firmly adhered; where the recess 3112 is not provided, the second surface 312 and the third surface 321 are not Sticky.

In this embodiment, the first belt body 31 is made of a plastic material, and the fastening member 3111 can be a single hook or a double hook or a hook-shaped hook body or a bulb-shaped or ring-shaped cotton wool body. Further, each of the recesses 3112 exhibits a discontinuous distribution, and its geometry is a dot shape, and the distance Da between any two adjacent recesses is between 0.4 cm and 0.6 cm, preferably 0.5 cm. In other variations, the shape of the recess 3112 may be a polygon such as a square, a rectangle, or a triangle. In addition, the second belt 32 is a woven fabric having a third surface 321 and a fourth surface 322. The third surface 321 and the second surface 312 are in a dot-like manner at the recess 3112, and the third surface 321 has a clear plurality of recesses 3221 with respect to the recess 3112, and the recesses 3221 and the foregoing The recess 3112 is distributed in the same position as the geometry. The adhesion between the second surface 312 and the third surface 321 in the recess 3112 may be ultrasonic welding, hot melt adhesive bonding or adhesive bonding. In the non-recessed position, the second surface 312 is not viscous with the third surface 321 as shown in Figure 2B.

The so-called ultrasonic fusion principle is a processing method that converts sound into thermal energy. The high frequency signal of 20KHZ or 15KHZ is generated by the sound generator, and the energy converter welding head (HORN) fixed on the ultrasonic machine directly contacts the plastic product, and the internal molecules of the plastic product are strongly rubbed to generate local high temperature. When the temperature is higher than the melting point of the plastic, the plastic will melt, and when the molten plastic cools, it will re-solidify and bond to achieve the fusion effect. The so-called hot-melt adhesive bonding method utilizes the operation of the hot melt glue machine to melt the melted glue of the hot melt adhesive into a liquid by heat, and is sent to the beaker through the hot melt hose and the hot melt glue gun of the hot melt glue machine. The surface of the adhesive is bonded after the hot melt is cooled. The so-called adhesive bonding method applied to the embodiment of FIG. 2A includes: providing an adhesive to the region of the second surface 312 corresponding to the recess 3112, waiting for the adhesive ripening time, and the second surface 312 and the third surface. The surface 321 is pressure-bonded; or, in the non-recessed area of the second surface 312 corresponding to the first surface 311, a release agent is applied first, and then an adhesive is applied to the second surface 312, waiting for the adhesive to mature. Then, the second surface 312 and the third surface 321 are pressure bonded together.

2B is a schematic cross-sectional view showing a crack propagation resistant adhesive tape 4 according to an embodiment of the present invention. As shown in the figure, the first strip body 41 of the fastening strip 4 has a hook body 414. The first strip body 41 and the second strip body 42 have a plurality of geometric shapes which are circular points. The gaps 412 at the non-dot points are not adhered to each other, and the section 413 of the first strip 41 of the plastic material is a smooth continuous straight line, and the section 422 of the second strip 42 of the textile material is discontinuous. The fabric interwoven lines 421 are distributed. When the different cross-sectional shapes are against the tearing force, the plastic film molecules of the first belt 41 are closely arranged, and the cracks are easily spread along the fracture. The section 413 is in a smooth continuous straight line, and the same tearing force is applied. The textile of the second belt 42 has a fabric interlacing line 421 which disperses the tearing force.

Please refer to FIG. 3, when the external force of the crack resistance of the crack-resistant adhesive tape of the present invention is encountered, for example, when a pair of horizontal forces Fa and Fb in opposite directions are applied, the first belt 51 of the plastic film material and the textile The bonding between the second strips 52 of the material material is discontinuously bonded due to the discontinuous distribution of the recesses 512, so that the first strip 51 of the plastic film material and the second strip 52 of the textile material are In the unbonded or non-recessed area, the crack propagation speed of the first strip 51 of the plastic film material is greater than the crack propagation speed of the second strip 52 of the textile material. As a result, the crack propagation of the first strip 51 of the plastic film material is hindered by the fabric interlacing line of the second strip 52 of the textile material, and cannot be smoothly propagated along the molecular arrangement direction of the first strip 51. .

For the same reason as described above, referring to FIG. 4, in the rupture of the anti-crack propagation adhesive tape of the present invention, a pair of front and rear pulling forces Fc, Fd are applied, because the first belt body 61 and the second belt body 62 are firmly secured. The discontinuous distribution of the bonding portion 621 is a discontinuous bonding, so that the bonding between the first tape body 61 of the plastic film material and the second tape body 62 of the textile material is due to the convex portion 621 (corresponding to the first tape The discontinuous distribution of the adhesive points of the recesses of the body 61 is a discontinuous fit, so that the first tape body 61 of the plastic film material and the second tape body 62 of the textile material are unbonded. In the non-recessed area, the crack propagation speed of the first strip 61 of the plastic film material is greater than the crack propagation speed of the second strip 62 of the textile material. As a result, the crack propagation of the first strip 61 of the plastic film material is hindered by the fabric interlacing line of the second strip 62 of the textile material, and cannot be smoothly propagated along the molecular arrangement direction of the first strip 61. .

The anti-crack propagation adhesive tape of the invention can achieve the following functions and advantages:

1. The first strips 31, 41, 51, 61 and the second strips 32, 42, 52, 62 of the fastening strips 3, 4, 5, 6 in the above embodiments are discontinuously dispersed or The adhesion points 3112, 411, 512, and 621 are bonded in a fixed point manner, and the fabric overlapping lines of the second belt bodies 32, 42, 52, 62 of the textile material can be effectively utilized to resist the crack propagation.

2. The first strips 31, 41, 51, 61 and the second strips 32, 42, 52, 62 of the fastening strips 3, 4, 5, 6 in the above embodiments are discontinuously scattered or The adhesion points 3112, 411, 512, and 621 are adhered in a fixed point manner, which can reduce the amount of the adhesive and wait for the adhesive to mature, reducing manufacturing and time costs.

3. The fastening tapes 3, 4, 5, and 6 in the above embodiments are resistant to needle sticking and sewing.

2A and FIG. 5, the present invention provides a method 7 for manufacturing a crack-resistant adhesive fastener tape, the steps of which include:

Step 71, providing a first strip 31 of plastic material, having a first surface 311 and a second surface 321 opposite the first surface 311;

Step 72, forming a plurality of fastening members 3111 on the first surface 311;

Step 73, providing a second material body 32 of textile material, having a third surface 321 and a fourth surface 322 opposite to the third surface 321;

Step 74, attaching the third surface 321 of the second strip 32 to the second surface 312 of the first strip 31; and forming a plurality of discontinuities and abutting portion 3112 on the second surface 312 of the first strip 31 And between the third surface 321 of the second strip 32;

In step 75, the anti-crack propagation or tear-resistant fastening tape of the present invention is completed.

Referring to FIG. 2A, the plurality of fasteners 3111 formed on the first surface 311 of the above step 72 are formed on the first surface 311 to form a plurality of hooks or cotton batts. In addition, the step of forming the discontinuity in the step 74 is between the second surface 312 of the first strip 31 and the third surface 321 of the second strip 32 by ultrasonic welding and hot melting. Glue or adhesive bonding is achieved. The aforementioned discontinuous and firm conforming portion 3112 has a circular shape and can be seen in the first surface 311 and the fourth surface 322 of the fastening tape 3 of the foregoing embodiment of the present invention.

While the present invention has been described above in terms of the preferred embodiments thereof, it is not intended to limit the invention, and may be modified by those skilled in the art without departing from the spirit and scope of the invention. The scope of patent protection of the present invention is defined by the scope of the patent application attached to the specification.

1. . . Sewn fixed object

10. . . Velcro tape

11. . . Hook surface

111. . . Hook body

112. . . Sewing stitches

12. . . Matte

121. . . Circle

122. . . Sewing stitches

13. . . Leather surface

14. . . Seat cushion

Pa. . . Tearing force

2. . . Velcro tape

twenty one. . . Textiles

211. . . Textile fiber

twenty two. . . Plastic film

221. . . Adhesive fastener

twenty three. . . gap

Pc. . . Tear force

Pb. . . Tear force

3. . . Velcro tape

31. . . First belt

311. . . First surface

3111. . . Adhesive fastener

3112. . . Recess

312. . . Second surface

32. . . Second belt

321. . . Third surface

322. . . Fourth surface

3221. . . Recess

Da. . . Adjacent recess distance

4. . . Velcro tape

41. . . First belt

411. . . Viscosity

412. . . Void

413. . . First belt section

414. . . Hook body

42. . . Second belt

421. . . Fabric interwoven line

422. . . Second belt section

5. . . Velcro tape

51. . . First belt

512. . . Recess

52. . . Second belt

Fa. . . Pull left

Fb. . . Pull right

6. . . Velcro tape

61. . . First belt

62. . . Second belt

621. . . Convex

Fc. . . Pull forward

Fd. . . Pull back

7. . . Production method

71. . . step

72. . . step

73. . . step

74. . . step

75. . . step

The above and other objects, features, advantages and embodiments of the present invention will become more apparent and understood.

FIG. 1A is a perspective view showing a conventional object in which a fastening tape is fixed in a sewing manner, in which a matte surface of a fastening tape and a hook surface are peeled off.

FIG. 1B is a perspective view showing a conventional adhesive tape made by a back-adhesive method, in which the adhesive tape is torn.

FIG. 2A is a perspective view showing the back strap body and the fastening tape body of the crack propagation resistant adhesive tape according to an embodiment of the invention.

2B is a schematic view showing a cross section of a crack propagation resistant adhesive tape according to an embodiment of the present invention.

Fig. 3 is a front elevational view showing the tear propagation resistant adhesive tape of the embodiment of the present invention being torn.

Fig. 4 is a side elevational view showing the tear propagation resistant adhesive tape of the embodiment of the present invention being torn.

Figure 5 is a flow chart showing a method of manufacturing the crack propagation resistant adhesive tape of the present invention.

3. . . Velcro tape

31. . . First belt

311. . . First surface

3111. . . Adhesive fastener

3112. . . Recess

312. . . Second surface

32. . . Second belt

321. . . Third surface

322. . . Fourth surface

3221. . . Recess

Da. . . Adjacent recess distance

Claims (14)

A Velcro tape resistant to crack propagation, comprising:
a first strip having a first surface and a second surface opposite the first surface, wherein the first surface is provided with a plurality of fastening members; and a second strip having a third surface and Backing to a fourth surface of the third surface, the third surface is attached to the second surface of the first strip;
Wherein, the third surface of the second strip body and the second surface of the first strip body have a plurality of bonds that are firmly adhered, and the bonds are discontinuous. The anti-crack propagation adhesive tape of claim 1, wherein the adhesive is in a plurality of recesses on the first surface of the first tape. The anti-crack propagation adhesive tape of claim 1, wherein the shape of the recesses on the first surface of the first tape is selected from the group consisting of a circle and a polygon. Configuration. For example, the anti-crack propagation adhesive tape of claim 1 is wherein the material of the first tape is plastic. The anti-crack-propagating adhesive tape of claim 1, wherein the adhesive member has a hook body selected from the group consisting of a single hook shape, a double hook shape and a crotch shape. The anti-crack-propagating adhesive tape of claim 1, wherein the adhesive member has a batt body having a configuration selected from the group consisting of a bulb shape and a ring shape. For example, the anti-crack propagation adhesive tape of claim 1 is wherein the spacing between adjacent adhesives is between 0.4 cm and 0.6 cm. For example, the anti-crack propagation adhesive tape of claim 1 is wherein the material of the second tape is a textile. A method for manufacturing a crack-resistant adhesive tape comprises the following steps:
Providing a first tape body having a first surface and a second surface opposite to the first surface, and forming a plurality of fastening members on the first surface;
Providing a second belt body having a third surface and a fourth surface opposite to the third surface;
Attaching the third surface of the second strip to the second surface of the first strip; and forming a plurality of discontinuities to firmly conform to the second surface and the second strip of the first strip Between the third surfaces of the body. The method for manufacturing a crack-resistant adhesive tape according to claim 9, wherein the forming a plurality of fasteners on the first surface forms a plurality of hooks on the first surface. The method for manufacturing a crack-resistant adhesive tape according to claim 9 , wherein the forming a plurality of fasteners on the first surface forms a plurality of batt on the first surface. The method for manufacturing a crack-resistant adhesive tape according to claim 9 , wherein the first tape system is provided with a plastic material, and the second tape system is provided with a textile material. The manufacturing method of the anti-crack propagation adhesive tape according to claim 9 , wherein the discontinuity is firmly adhered to the second surface of the first tape body and the third surface of the second tape body The steps between the surfaces are achieved by a group selected from the group consisting of ultrasonic welding, hot melt, and adhesive bonding. The manufacturing method of the anti-crack propagation adhesive tape according to claim 9 , wherein the discontinuity is firmly adhered to the second surface of the first tape body and the third surface of the second tape body The step between the surfaces forms a complex discontinuity of a dot-like snap fit between the second surface of the first strip and the third surface of the second strip.