JP2005185349A - Hook-and-loop fastener - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a hook-and-loop fastener capable of increasing an engagement force greater. <P>SOLUTION: The hook-and-loop fastener 1 is provided with a plurality of engagement components 4 on a base material face of a base material 3, wherein each step part of each of the components 4 is approximately linearly shaped and the components 4 are inclined by 60-85 degrees to the base material face where the components 4 are provided. As one preferable example, components 4 may be inclined so as to intersect each other and form an engagement head part 4a such as a swelling head each in the head part of the component 4 instead of all their parallel arrangement. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a hook-and-loop fastener, and more particularly to a hook-and-loop fastener having an excellent engaging force.

  The hook-and-loop fastener can be bonded and peeled a plurality of times, and is an engaging means excellent in ease of use. The engaging property of the hook-and-loop fastener is required to be in various states mainly depending on the application. The engaging property of the hook-and-loop fastener is generally adjusted by the shape and density of the engaging elements protruding from the substrate surface.

  An example of a conventional surface fastener is shown in FIGS. FIG. 5 shows side views of two types of hook-and-loop fasteners. Each base material is provided with a plurality of engaging elements, which can be pressed against each other and bonded together, while both can be peeled off. One is a male surface fastener 100 and the other is a female surface fastener 200.

  As shown in FIGS. 5 and 6, the male surface fastener 100 is provided with a large number of engaging elements 400 that stand upright in the vertical direction with respect to the base material surface of the sheet-like base material 300. As shown in FIG. 6, the engagement element 400 provided on the male surface fastener 100 includes a stem 420 that stands up from a sheet-like base material 300 and a swelling head 410 provided at the end. The sheet-like base material 300 is made of a woven fabric, and the engaging element 400 is formed by being woven into fibers (not shown) constituting the base material. Further, as shown in FIG. 5, a large number of loop-like engaging elements 500 are provided on the base material surface of the base material 300 of the female surface fastener 200. While the engagement element 400 of the male surface fastener and the engagement element 500 of the female surface fastener 200 are engaged with each other, the male surface fastener 100 and the female surface fastener 200 can be pressed and bonded together to be peeled off. You can also.

  While the surface fastener is easy to bond and peel, there are cases where the fixing property is an important point, for example, artificial turf joint, civil engineering reinforcement work, and sheet fixing when laying.

  In addition, for the purpose of suppressing sound at the time of disengagement, there is known one in which engagement elements are obliquely implanted only in one direction (for example, Patent Document 1).

Japanese Patent Laid-Open No. 7-124004

  An object of this invention is to provide a hook-and-loop fastener with stronger engaging force.

  In order to achieve the above object, the present invention employs predetermined means for the angle and shape of the engaging elements with respect to the base material surface and the positional relationship between the engaging elements. That is, the present invention provides the following surface fastener.

  The present invention is a hook-and-loop fastener in which a plurality of engagement elements are provided on a base material surface of a base material, and the engagement element provided on the base material surface has a stem portion of the engagement element having a substantially linear shape. A hook-and-loop fastener that is inclined at an angle of 60 to 85 degrees with respect to the base material surface on which the engagement element is provided is provided. The hook-and-loop fastener provided with the engagement element as described above has a strong engagement force when the first base material surface and the second base material surface are bonded to each other, and the engagement portion places importance on stability and stability. Can be suitably used.

  Moreover, this invention provides the hook_and_loop | surface fastener by which the engaging head was provided in the one end part of the engagement element in the said hook_and_loop | surface fastener. By providing the engagement head, a hook-and-loop fastener having a stronger engagement force can be obtained.

  Further, according to the present invention, in the hook-and-loop fastener described above, 70 to 100% of the engagement elements provided on the base material surface are substantially straight in the shape of the stem portion of the engagement element, and the base on which the engagement element is provided. Provided is a hook-and-loop fastener that is an engagement element that is inclined at an angle of 60 to 85 degrees with respect to a material surface and is provided so that any pair of adjacent engagement elements intersect each other. By setting the density on the base material surface of the engaging element having the above-described characteristics to 70 to 100%, a hook-and-loop fastener that is superior in engaging force can be obtained.

  The hook-and-loop fastener of the present invention can be applied to general uses of hook-and-loop fasteners. For example, the surface fastener of the present invention is used as a first surface fastener and the other surface fastener is used as a second surface fastener, and the surfaces provided with the engaging elements of the first and second surface fasteners are pressed together. They can be bonded together and fixed together, and both can be peeled off. Further, one base material may be a first fastener surface and the other surface may be a second fastener surface. Further, the hook-and-loop fastener of the present invention is not limited to the other party to be attached. For example, even if the other party is a hook-and-loop fastener having the same type of engagement element as the present invention, the hook-and-loop fastener has an engagement element of another shape. Also good. Furthermore, even if the other party is other than the so-called hook-and-loop fastener, it can be used without limitation as the other party for those that can engage the engaging element.

  The surface fastener of the present invention is not limited to the manufacturing method, and the manufacturing method can be manufactured by a conventional method of manufacturing a surface fastener.

  According to the present invention, a hook-and-loop fastener excellent in engagement force is provided.

  Below, the embodiment of the surface fastener which concerns on this invention is illustrated. The present invention is not limited to the following embodiment.

[First Embodiment]
A first embodiment will be described with reference to FIGS.
FIG. 1 is a side view of a hook-and-loop fastener 1 according to the first embodiment. Many engaging elements 4 are provided on the sheet-like base material 3. In FIG. 1, only one row of the engaging elements is shown, and the engaging elements arranged in the back are omitted.

  FIG. 2 is an enlarged view showing a portion of the engaging element. The sheet-like base material 3 is formed of a woven fabric, and the engagement element 4 is woven into the base material 3 to form two engagement elements 41 and 42. The hook-and-loop fastener 1 is configured by providing a large number of combinations of the engaging elements 41 and 42.

  The engaging element 4 has a stem portion 4b whose shape is substantially linear, and the stem portion 4b is inclined with respect to the substrate surface, and the inclination angle α is preferably 60 to 85 degrees. More preferably, it is 65-77 degree | times, More preferably, it is about 70 degree | times. By providing such an inclination angle, the engaging force of the hook-and-loop fastener can be improved.

  Further, in the present embodiment, the respective inclination directions of the plurality of engagement elements 4 are not aligned in parallel to one direction, but are provided so that the engagement elements intersect each other. Crossing here means that all the engaging elements are not inclined in the same direction and the same angle so as to be parallel. The intersecting includes the case where the virtual extension lines M of the respective engaging elements intersect with each other as shown in FIG. Further, it is desirable that the engaging elements do not directly contact each other.

  As shown in FIG. 3, in the first embodiment, the engagement elements 4 arranged in the X direction are provided so as to alternately intersect, and the positional relationship between the engagement elements in the Y direction is arbitrary. Can be adjusted.

  The material of the engagement element is not particularly limited as long as the material has moderate elasticity. Further, the engaging element is preferably formed of a synthetic polymer monofilament. Considering from the viewpoint of production, a thermoplastic polymer that can be melt-spun is preferable, and examples thereof include polyolefin, polyamide, and polyester. From the viewpoint of processability, polyolefin, particularly polypropylene is preferred.

  In addition, when a synthetic polymer monofilament is used as the engagement element, it is preferable that about 0.1 to 5% by weight of carbon black is added to the resin to improve the weather resistance, and the ultraviolet absorber is made of carbon black. If about 1/10 amount is added simultaneously, the weather resistance is further enhanced.

[Second Embodiment]
Next, a second embodiment will be described with reference to FIG. Regarding the second embodiment, description of the same parts as those of the first embodiment is omitted.

  As shown in FIG. 4, in the second embodiment, the engaging elements 43 and 44 are formed of a mushroom-shaped engaging head 4a and a stem 4b. By providing the engaging head on the head of the engaging element, the engaging force of the hook-and-loop fastener can be further improved.

  In the second embodiment, the engaging head has a mushroom shape, but the present invention is not limited to this. It may be formed into a shape. The cross-sectional shape is preferably substantially circular. When the cross-sectional shape is a polygon, a symmetric shape is preferable.

[Third Embodiment]
Next, a third embodiment will be described. In the third embodiment, description of the same parts as those in the first embodiment is omitted.

  In the third embodiment, the ratio of the engaging element that is inclined at an angle of 60 to 85 degrees with respect to the base material surface on which the engaging element is provided, in which the shape of the stem portion of the engaging element is substantially straight. Is provided so as to be 70 to 100% of the engagement element provided on the base material surface. By making the ratio of the engaging elements in this way, the engaging force of the hook-and-loop fastener can be further improved.

  Examples of the present invention will be described below, but the present invention is not limited to the following examples.

[Tensile test]
1. Male surface fasteners Surface fasteners having inclination angles of 90 °, 80 °, 70 °, and 60 with respect to the base material cloth of the engaging elements were produced as follows.

1. Manufacture of male surface fastener Using double woven loom (equipment for weaving two base fabrics facing each other) using nylon woven fabric as base fabric, 1300 denier polypropylene yarn as monofilament to stand. After weaving warp pile or twill, we opened two pieces. After applying a back surface coating mainly composed of an emulsion-based urethane resin, the tip portion of the monofilament was melted to form an engagement element having a swollen body shape.

The hook-and-loop fastener was manufactured so that about 70% or more of the engaging elements existing per unit area had the above-described inclination angle. That is, at the time of double pile weaving, weaving temperature is about 160 ° C., and twill weaving while adjusting the feeding speed of monofilaments to 50, 51, 53 and 57 mm / min, respectively, so that the inclination angle of the engagement element with respect to the base fabric is 90 degree, 80 degree, 70 degree and 60 degree male surface fasteners were produced.
In addition, the monofilament of the obtained male surface fastener has a maximum diameter of the bulge body shape of 1.0 to 1.2 mm, a height of the bulge part of 0.5 mm, and the length of the entire monofilament including the bulge part. Was 2.1 to 2.7 mm, and the thickness of the base fabric was 0.5 mm. In addition, the engaging elements had an inclination angle of about 85% or more per unit area of the hook-and-loop fastener.

2. Female surface fastener A female surface fastener having a loop-like engagement element on one surface of a base fabric was used. The loop height is about 2 mm.

3. Evaluation Method According to the T-type peel test (JIS L3416; 2000, 7.4.2) using a tensile tester, the above 1. And 2. The engagement force (X) when the hook-and-loop fastener shown in FIG. Engagement force (X) is 5 cm wide male and female surface fasteners engaged 5 cm long and engaged at 5 cm square, and a non-engagement portion provided at one end of each male and female surface fastener is pulled. It was attached to the grip of the machine and pulled in the opposite direction at a pulling speed of 30 cm / min to separate the 5 cm that had been engaged. The engaging force takes 6 maximum from the maximum peel load shown when peeling, and 6 from the minimum minimum, obtain an average value P of 12 values, Dividing by the effective width of the fastener (5 cm in this test), it was calculated as the peel strength per 1 cm width. Five sets of test pieces were measured, and the average value was obtained as the engaging force (X).

  The results are shown in Table 1. As apparent from Table 1, it became clear that the engagement force differs depending on the inclination angle of the engagement element of the male surface fastener.

  The present invention is useful in the field where a hook-and-loop fastener is used.

It is a side view which shows one embodiment of this invention. It is an enlarged view of an engagement element. It is a perspective view which shows one embodiment of this invention. It is a figure which shows the other example embodiment of this invention. It is a figure which shows the combination of the conventional male surface fastener and a female surface fastener. It is a figure which shows the engagement element provided in the conventional male surface fastener.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Surface fastener 3 Base material 4, 41, 42, 43, 44 Engagement element 4a Engagement head 4b Stem part alpha Inclination angle L Virtual extension line 100 of an engagement element Male surface fastener 200 Female surface fastener 300 Base material 400 Engagement Element 410 Cuff 420 Stem 500 Engaging element (loop shape)

Claims (3)

A hook-and-loop fastener provided with a plurality of engagement elements on the base material surface of the base material,
The engaging element provided on the base material surface is a surface in which the stem portion of the engaging element has a substantially linear shape and is inclined at an angle of 60 to 85 degrees with respect to the base material surface on which the engaging element is provided. fastener.   The hook-and-loop fastener according to claim 1, wherein an engaging head is provided at one end of the engaging element.   70-100% of the engaging elements provided on the base material surface have a substantially straight shape of the stem portion of the engaging element, and an angle of 60-85 degrees with respect to the base material surface provided with the engaging elements. The hook-and-loop fastener according to claim 1 or 2, wherein the hook-and-loop fastener is inclined.

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