JPH04341201A - Face fastener with masking sheet - Google Patents

Abstract

PURPOSE:To easily expose the necessary engaging face by fixing a masking sheet which can be torn easily in one direction onto the fastener male face or the female face. CONSTITUTION:As for a masking sheet 3, a material having such a quality as on be torn easily in one direction, such as a packing polyethylene film, etc., is used. As for a means for fixing this making sheet 3 to the fastener male face 1, it is executed by sewing with a sewing machine, fixing with a stapler, etc. At the time of fixation, the easily tearable direction is allowed to conform to the longitudinal direction of a face fastener. At the time of engaging work, a tear line 5 is formed so that the masking sheet 5 is torn easily. As for the number of pieces of this tear line 4, it is selected suitably by considering an area, etc., of the fastener male face 1. As for the fastener face 1, that which has an engaging part of a hook shape, etc., on a base part 5 will suffice. In such a way, by tearing the masking sheet 3, the engaging face of the necessary fastener male face 1 can be exposed easily.

Description

[Detailed description of the invention]

0001

[Industrial Application Field] The present invention provides a hook-and-loop fastener with a masking sheet that can prevent undesired engagement until the desired engagement. The present invention relates to a hook and loop fastener with a masking sheet, which does not require a masking sheet, and the masking sheet can be easily removed during use.

0002

[Prior Art] Hook-and-loop fasteners are used for a variety of purposes, such as fasteners for household goods, hook-and-loop fasteners for industrial sheets, and hook-and-loop fasteners for joining artificial turf, but their ease of engagement makes them difficult to handle. This may cause inconvenience. That is, if an undesired engagement occurs during positioning in an attempt to engage at a predetermined location, it must be peeled off and reengaged. Further, undesired or unnecessary engagement may occur not only during the engagement operation but also during movement, transportation, and storage operations of the hook and loop fastener. In these cases, engagement often occurs between the mating zipper surface, but even if it is not the zipper surface, it may be an object that has a similar form and function, such as a raised fabric, a loop-shaped carpet, or wool. It can also occur with sweaters, etc. When such undesired engagement occurs, it is troublesome, and the male side of the fastener sticks to a small area of the hook-and-loop fastener, for example, a part of a woolen sweater, and if it is carelessly removed, the thread gets caught and the thread pulls out. Many people must have had the unpleasant experience of having the zipper at the opening of their shoe get caught in their wool pile socks. However, in the case of a small area, even if the engagement force is strong, peeling can be done in a short time. This is difficult if the area is large. For example, when hook-and-loop fasteners are attached to the edges of each sheet to connect multiple large sheets of various types used in the civil engineering and transportation fields, it is difficult to peel them off and the work is difficult. This will cause problems. The use of a masking sheet as an effective means for solving this problem is described in Japanese Utility Model Application Publication No. 2-98152. This masking sheet is for covering the fastener surface to prevent the engagement function from being exerted (ie, masking) until the desired engagement, and is fixed to the fastener surface with an adhesive.

0003

[Problem to be solved by the invention] Utility Model Application Publication No. 2-98152
Since this adhesive is used in this issue, the cost of the adhesive cannot be ignored, and even after the masking sheet is removed when using the fastener, the adhesive may remain on the surface and affect the engagement force. Further, in order to adhere the masking sheet to the fastener surface, two steps are required: applying an adhesive and then pasting. Furthermore, the removed masking sheet is sticky and difficult to handle, making it difficult to handle industrially.
Not practical. The object of the present invention is to
The purpose of this invention is to further improve the effective hook-and-loop fastener using a masking sheet, which is described in the above issue. That is, (1) it does not affect the engagement force of the hook-and-loop fastener, and (2)
To provide a hook-and-loop fastener with a masking sheet, in which the masking sheet can be fixed to the fastener surface through a simpler process, and (3) the masking sheet can be easily removed during use.

0004

[Means for Solving the Problems] In view of the above-mentioned circumstances, the present inventors have conducted intensive research and have devised a masking sheet made of a material that is easily torn in one direction, using a simple method such as sewing. It has surprisingly been found that the above-mentioned problem can be solved by fixing the fastener on either the female or female fastener surface. The present invention has been made based on such knowledge, and in a first aspect provides a male hook-and-loop fastener characterized in that a masking sheet that is easily torn in one direction is adhered to the male surface of the fastener. be. In a second aspect, the present invention provides a female surface fastener characterized in that a masking sheet that is easily torn in one direction is fixed to the female surface of the fastener. In these embodiments, the fastener surface is covered with a masking sheet, and contact with the mating fastener surface or something similar to the fastener surface is cut off, and its engagement ability is not exhibited. However, for desired engagement, the engagement surface can be easily exposed by tearing the masking sheet, as will be described in detail later.

The present invention will be explained below with reference to the drawings. FIG. 1 is a perspective view schematically showing a male surface fastener with a masking sheet fixed to the male surface of the fastener. FIG. 2 is a perspective view schematically showing a female hook-and-loop fastener in which a masking sheet is fixed on the female surface of the fastener. Referring to FIGS. 1 and 2, the male hook-and-loop fastener or female hook-and-loop fastener of the present invention includes a fastener male surface (or male surface engaging portion) (1
) or a masking sheet (3) is fixed on the female surface (or female surface engaging portion) (2) of the fastener. Here, the masking sheet in the present invention refers to a sheet-like material that does not itself have a surface engagement force with the fastener surface, covers the fastener surface by adhering to it and does not expose it, and is easily torn in one direction. Use materials with specific properties. For example, a sheet of dry-processed nonwoven fabric that is directly attached to a card and has many fibers oriented in one direction, polyethylene film for packing, etc. are examples of materials that can be easily torn in one direction and can be used in the present invention. Preferably,
A material that is difficult to tear in directions other than the easy tear direction is used, and in order to prevent premature breakage before tearing is complete, the tear strength is (strength in the easy tear direction and orthogonal direction) / (strength in the easy tear direction) ≧2 and the tensile strength in the direction of easy tearing is preferably 100 g/cm or more.

[0006] Examples of means for fixing such a masking sheet to the fastener surface include sewing, spot welding, and stapling. Among these, sewing with a sewing machine is preferable from the viewpoint of ease of fixing work. Alternatively, the nonwoven fabric used as the masking sheet may be lightly raised and the raised portion may be used to engage the masking sheet and the male surface like a hook-and-loop fastener, thereby achieving fixation. By employing such a fixing means, the masking sheet can be fixed in a simple process and does not adversely affect the engagement force of the fastener surface after removal. When fixing, it is desirable that the direction of easy tearing coincides with the longitudinal direction of the hook-and-loop fastener. During the engagement operation, the fastener surface is exposed by tearing the masking sheet, but this is desirable from the viewpoint of workability since the tearing effort is small. In addition, when tearing the masking sheet,
To facilitate tearing, it is preferred to form a tear line (4) along which it can be torn. for example,
When the masking sheet is fixed by sewing, the sewing not only achieves the fixation but also forms tear lines. In addition, tear lines can be formed by creating cut portions in the form of perforations. The tear line is formed in accordance with the direction in which the masking sheet is easily torn. Further, the number of tear lines can be appropriately selected in consideration of the area of the fastener surface and the ease with which the masking sheet is torn.

Next, the male and female surfaces to which the masking sheet is to be fixed are not particularly limited, and may be any type conventionally used in hook-and-loop fasteners. For example, the base portion (5) may have a mushroom-shaped, hook-shaped, or diamond-shaped engaging portion on the base portion (5), or may be a homo-type or a hetero-type. The male or female hook-and-loop fastener with a masking sheet of the present invention can be manufactured by stacking a masking sheet on either the male side or the female side, fixing the masking sheet, and forming tear lines, if desired. When using the thus obtained male or female hook-and-loop fastener of the present invention, the masking sheet is torn to expose the engaging surface. In a preferred embodiment of the male or female hook and loop fastener, the tear line is torn along the tear line. FIG. 3 shows the state in which the film is torn along this tear line. FIG. 3 shows a specific example in which tearing is performed along tear lines formed by sewing. As described above, the male or female hook-and-loop fastener of the present invention in which the surface engagement function is inhibited can be easily positioned, and is particularly suitable for large-area hook-and-loop fasteners, such as sheets for construction and civil engineering. It can be suitably used when provided on the edges of large sheets such as tents and sheets such as artificial turf as a means for connecting these sheets. Since there is no fear of unwanted engagement, it is easy to handle not only during engagement work but also during transportation, storage, sewing processes, etc.
It can be used by taking advantage of such characteristics. The masking sheet-equipped hook-and-loop fastener of the present invention can be combined with a mating surface, and is particularly convenient for transportation, storage, etc. since it does not become bulky when rolled up.

[0008]

[Examples] The present invention will be explained in more detail with reference to Examples below. Example 1 The male side of a mushroom-shaped hook-and-loop fastener manufactured by Dynic Co., Ltd. was used as the fastener, and the masking sheet was used with Shinwa (
A masking sheet was fixed by sewing using a dry non-woven fabric 5120 manufactured by Co., Ltd. and 30-count cotton sewing thread as a fixing thread to produce a male hook-and-loop fastener with a masking sheet of the present invention. Here, the tear strength of the dry nonwoven fabric 5120 alone was 60 g in the vertical direction, 131 g in the horizontal direction, and the tensile strength in the vertical direction was 120 g/cm. The fixed dry nonwoven fabric could be easily torn in the longitudinal direction and removed without being cut in the width direction during use. Example 2 A female hook-and-loop fastener with a masking sheet of the present invention was produced in the same manner as in Example 1 except that a female hook-and-loop fastener manufactured by Dynic Co., Ltd. was used as the fastener. The fixed dry nonwoven fabric could be easily torn in the longitudinal direction and removed without being cut in the width direction during use.

[0009]

Effects of the Invention The present invention provides a hook-and-loop fastener with a masking sheet that can prevent undesired engagement until the desired engagement.The masking sheet can be fixed in a simple process, which is excellent in terms of manufacturing process. To provide a hook-and-loop fastener that does not affect the engagement force of the fastener surface and allows a required engagement surface to be easily exposed by tearing a masking sheet at the time of necessary engagement.

[Brief explanation of the drawing]

FIG. 1 is a perspective view schematically showing a male surface fastener with a masking sheet fixed to the male surface of the fastener.

FIG. 2 is a perspective view schematically showing a female hook-and-loop fastener in which a masking sheet is fixed on the female surface of the fastener.

FIG. 3 is a perspective view showing the masking sheet being torn to expose the fastener surface.

[Explanation of symbols]

1: Male side of the fastener (male side engaging part), 2: Female side of the fastener (female side engaging part), 3: Masking sheet, 4: Tear line, 5: Base part

Claims (3)

[Claims] 1. A male hook-and-loop fastener comprising a masking sheet that is easily torn in one direction and is adhered to the male surface of the fastener. 2. A female hook-and-loop fastener, characterized in that a masking sheet that is easily torn in one direction is fixed on the female surface of the fastener. 3. Claim 1 or 2, wherein the masking sheet is fixed by sewing.
Hook-and-loop fastener described in .