JPS6318496B2 - - Google Patents

Description

[Detailed description of the invention] The present invention relates to a method for manufacturing a base for pine,
More specifically, the present invention relates to a method of manufacturing a base for a dust control mat that is excellent in workability for attaching and detaching the mat and its durability.

Conventionally, dust control mats have been widely used to prevent outdoor dust from adhering to the soles of shoes and entering indoors. This dust control mat must be kept in a fixed position at the entrance, etc., and must not be easily moved, for example, if it is rubbed vigorously by the soles of shoes or when many people enter and exit. Also, the edges of the pine should not be easily turned over.

For this purpose, a dust control mat is used in combination with a mat support base. As such a pine base assembly, for example, Japanese Utility Model Publication No. 49-1606 discloses a frame-like protrusion on the periphery of a vinyl chloride or other thermoplastic synthetic resin sheet having an arbitrary shape such as a rectangle or an ellipse. It has been proposed that a rug is provided and a rug is removably fitted inside the ridge.

However, simply fitting the mat inside the frame-like projecting edge is still not sufficient for the purpose of preventing the mat from moving and preventing the corners from curling up. Particularly in the case of dust control pine, a system is adopted in which the pine is lent to the user for a certain period of time, the used pine is washed, regenerated through oil treatment, etc., and then lent to the user again. As a result, the mat itself shrinks during this cycle of use and reproduction, making it difficult to always match the outer circumferential dimension of the mat with the dimension of the frame-like rim of the base.

From this standpoint, it is desirable to use some kind of temporary locking mechanism between the mat and its support base.

Conventionally, as such a temporary locking mechanism, a combination of a locking element consisting of a so-called magic tape, that is, a locking piece embedded in the base fabric, and a fiber loop element has been widely used. The locking mechanism is
Although satisfactory results may be obtained when locking together soft materials such as textiles, this locking mechanism is not very durable when applied to the mat and base assembly described above. There is a drawback that satisfactory attaching/detaching workability cannot be obtained continuously.

Furthermore, as disclosed in Japanese Patent Application No. 55-117041, it has also been proposed to provide a locking element by thermally bonding it to the mat base to solve the above-mentioned drawbacks. A special process for thermally bonding the elements to the mat base is required, which creates additional problems, resulting in economical disadvantages.

The present inventors have proposed that a mat base be integrated with a locking element consisting of a locking piece embedded in a base fabric, and with the base fabric of the locking element embedded in the surface of the base sheet, an elastomer weight When formed from a union, this locking mechanism is durable and has satisfactory attachment and detachment properties when used in conjunction with the base with a mat having a fiber loop that engages with the locking element. It has been found that, in manufacturing the base, no special work process such as special adhesive or thermal bonding is required in order to provide the locking element on the surface of the base sheet.

That is, an object of the present invention is to provide a method for manufacturing a mat base in which, when a temporary locking mechanism is applied to a mat and base assembly, the locking mechanism has excellent durability and durability in attachment and detachment.

Still another object of the present invention is to provide a method for manufacturing a mat base that does not require special work processes such as special adhesive and thermal bonding even when providing the locking elements of the temporary locking mechanism on the base sheet. It is on offer.

According to the present invention, the locking element accommodating space is disposed on the base sheet corresponding surface of the base sheet and the base sheet corresponding surface of the mold having a surface corresponding to a frame-like protrusion on the periphery of the base sheet, and the locking element accommodating space is provided in the locking element accommodating space. A locking element consisting of a locking piece embedded in the base fabric is locked to the pasted fiber loop element so that the base fabric is exposed in the mold, and then the elastomer polymer is placed in the mold. A base sheet and a frame-like projecting edge are formed integrally with the locking element by pouring, and the locking element and the fiber loop element are peeled off to remove the base from the mold. A manufacturing method is provided.

The present invention will be explained below based on the accompanying drawings.

In FIG. 1 showing the mat base of the present invention, this base 1 has a rectangular, oval, etc. sheet 2.
and a frame-shaped protrusion 3 formed around the periphery of this sheet. These sheet 2 and the protrusion 3 are integrally formed of an elastomer polymer, and the inner side of the protrusion 3 is made of matte. A recessed space 4 is formed for accommodating the. Examples of elastomeric polymers include soft vinyl chloride resin compositions, chlorinated polyethylene, chlorinated polypropylene, ethylene-propylene rubber, ethylene-propylene-diene rubber, polyisobutylene, butyl rubber, polybutadiene, styrene-butadiene rubber, nitrile-butadiene rubber, and polyurethane. etc. can be mentioned. From an economic standpoint, a soft vinyl chloride resin composition is most suitable.

According to the present invention, hook-shaped or mushroom-shaped locking pieces are embedded in the base fabric 5 in order to removably lock the base 1 and the dust control mat at a plurality of positions around the periphery of the mat. A locking element 7 consisting of 6 is provided at a suitable position on the surface of the base sheet.

An important feature of the present invention is that the base fabric 5 having the locking pieces 6 is embedded in the elastomer polymer forming the sheet 2 and is formed integrally with the sheet 2.

As shown in FIG. 2, which is a partially enlarged view of the embedded base fabric 5, in the present invention, the base fabric 5 is formed integrally with the base sheet 2 formed of an elastomer polymer. The elastomer polymer R permeates between the weaves of the cloth 5 in a mushroom-like manner, and the base of the locking piece 6 of the locking element 7 bites into these polymers through the base cloth 5, and is anchored. Refers to the condition.

Therefore, a locking element 7 consisting of a base fabric 5 and a locking piece 6
can be firmly fixed directly to the base sheet 2 without any adhesive layer, thus achieving a significantly high peel strength between the locking element 7 and the base sheet 2, and also providing a dust control mat. It can withstand repeated attachment and detachment operations for a long period of time, outdoor exposure, and immersion in water or hot water.

In the present invention, the base fabric 5 for forming the locking element 7 is a woven fabric, a nonwoven fabric, or a netting made of one or more types of cotton fiber, rayon, polyvinyl alcohol fiber, acrylic fiber, nylon fiber, etc. Furthermore, it may be a plastic net, among which a coarse mesh is preferably used in order to allow the polymer forming the base sheet to penetrate by the method described below.

The locking piece 6 engages with a fiber loop 12 provided on the mat 8 shown in FIG.

The combination of the locking element 7 having the locking piece 6 and the fiber loop element 12 is generally widely known as Velcro tape, for example Velcro.
It is commercially available under the trade name Fuasner. The locking piece 6 of the locking element 7 is made of nylon or polypropylene, and the base fabric 5 is made of the above-mentioned nylon fiber or other synthetic thermoplastic fiber.
It is of course possible to back the opposite side with a resin such as polyurethane to prevent it from coming off.

The dust control mat used in combination with the mat base according to the present invention is, for example, as shown in FIG. It consists of a pile yarn 10 and a backing layer 11 that fixes the pile yarn to this base fabric. The pile yarn 10 may be a spun yarn or a multifilament yarn made of one or a combination of two or more of cotton fibers, rayon, polyvinyl alcohol fibers, acrylic fibers, nylon fibers, etc. It may be a woven fabric, a non-woven fabric, or a netting made of fibers, or even a plastic net. The backing layer 11 is formed by applying a latex of synthetic rubber such as nitrile-butadiene rubber to the back side of a tufted base fabric and drying it.

This dust control pine pile thread 1
0 has the effect of adsorbing and holding dust adhering to the sole of the shoe onto the pile yarn 10 by rubbing against the sole of the shoe. In order to further enhance the dust adsorption/retention effect of the pile yarns 10, the pile yarns 10 can be coated with or impregnated with a dust-adsorbing liquid. Such dust-absorbing liquids include, for example, liquid paraffin, spindle oil, alkylbenzene oil, diester oil, mineral oil such as castor oil, synthetic oil, vegetable oil-based oils, and Japanese Patent Publication Nos. 53-10194 and 53-37471. Examples include aqueous dust adsorbents described in publications.

As the mat used in combination with the mat base of the present invention, in addition to the above-mentioned tufted mat, it is also possible to use a mat made by electrostatically flocking fiber flock onto a base fabric.

Furthermore, these mats 8 are provided with fiber loops 12 which are fixed to the back side of the mats 8 by seams 13 and can engage with the locking pieces 6 of the locking elements 7 provided on the base mat according to the invention. There is. The fiber loop 12 is formed by implanting fiber threads in a loop shape into a base fabric made of nylon fiber or other synthetic thermoplastic fiber.

That is, according to the mat base of the present invention, the base 1 and the dust control mat 8 can be removably engaged with each other at a plurality of positions on the periphery of the mat via the engagement element 7, and this engagement Since the element 7 is provided integrally with the mat base 1 with the base fabric 5 embedded in the surface of the base sheet 2, the element 7 can withstand repeated use over a long period of time of the above-mentioned attachment/detachment operations, outdoor exposure, underwater or It can also withstand immersion in hot water.

Next, a method of manufacturing a mat base according to the present invention will be explained.

Fourth illustrating the method for manufacturing the pine base of the present invention
In the figure, the mold 13 has a base sheet and a surface 14 corresponding to a frame-like ridge on the periphery of the base sheet, respectively.
It has 15. Further, in this mold 13, a locking element housing space 16 is arranged on the base sheet corresponding surface 14, and a fiber loop element 17 is attached and provided within this housing space 16.

An important feature of the method of the invention is that the locking element 7 consisting of a locking piece 6 implanted in the base fabric 5 is placed in the housing space 1 while the base fabric 5 is exposed in the mold 13 and the locking piece 6 is placed in the receiving space 1.
The elastomer polymer R described above is poured into the mold 13 in this state so as to be locked with the fiber loop element 17 stuck inside the mold 13.

That is, the elastomer polymer R poured into the mold 13 permeates into the base fabric 5 constituting the locking element 7 exposed in the mold 13, and solidification is performed. At this time, since the locking element 7 is fixed in the accommodation space 16 by the fiber loop element 17, it does not move even when the polymer R flows, and solidification and molding is always performed in the accommodation space position. This locking element 7 should also be provided in such a way that its base fabric 5 completely covers the receiving space 16, so that the polymer R does not flow into the receiving space 16.

In this way, the elastomer polymer R forming the base sheet 2 penetrates into the base fabric 5 and the locking piece 5
is engaged with the polymer R through this base fabric 5, so that the locking element 7 engages with the polymer R through this base fabric 5, as shown in FIG.
is completely embedded in the base sheet 2 and is provided integrally with the base sheet 2.

In the method of the present invention, after the elastomer polymer R is solidified and molded in this way, the locking element 7 and the fiber loop element 17 are separated, and the molded product is transferred to the mold 13.
A base for pine is manufactured by taking it out from.

In the method of the present invention, in order to adhere the fiber loop element 17 in the locking element accommodation space 16 of the mold 13,
Any adhesive can be used. At this time, if a pressure-sensitive adhesive is applied to the base fabric surface of the fiber loop element 17 in advance and is adhered to the surface of the space 16, this fiber loop element 17 will be attached to the surface of the locking element 7. It is affixed within the space 16 to withstand peeling, and on the other hand, when the fiber loop element 17 becomes worn due to multiple uses, it can be easily replaced.

When providing a locking element on a base sheet, it has been proposed to provide the locking element by thermal bonding, as described in Japanese Patent Application No. 117041/1982, but this method This is done by overlapping the locking element and the sheet base after forming the polymer into a sheet, and pressing them together under heat using, for example, a heat seal bar.Separately from the process of forming the polymer into the base sheet, A process for providing the locking element on the base sheet is required, and a device such as high frequency heating is required for heating. Furthermore, special adhesives such as polyurethane are required in order for the locking elements to have a sufficiently satisfactory peel strength with respect to the base sheet.

In contrast, according to the present invention, the locking element can be provided simultaneously with the operation of forming the polymer into the base sheet, integrally with the base sheet, and with the base fabric embedded in the base sheet. It is understood that this method is much more economically advantageous than the previously described method, since no special process, equipment, etc., and no special adhesive are required to provide the locking element on the base sheet. .

Furthermore, in the mat base of the present invention, the elastomer polymer constituting the base sheet penetrates the base fabric of the locking element, and the locking piece of the locking element bites into the base sheet through the base fabric. ,
The interlocking and anchoring effect between the two is significantly increased.

[Brief explanation of the drawing]

FIG. 1 is a cross-sectional view of the mat base of the present invention, FIG. 2 is an enlarged cross-sectional view of the main parts of the mat base of the present invention, and FIG. 3 is a cross-sectional view of the mat base of the present invention. FIG. 4 is a diagram showing an example of a dust control mat used in combination, and FIG. 4 is an explanatory diagram for explaining the method of manufacturing a mat base of the present invention, in which reference numeral 1 indicates the mat base, 2 1 is a base sheet, 3 is a frame-like protrusion, 4 is a mat storage space, 5 is a base fabric, 6 is a locking piece, 7 is a locking element, 8 is a dust control mat, 13 is a mold, 16 is a locking element storage space , 17 indicate fiber loop elements, respectively.

Claims (1)

[Claims] 1 A locking element accommodating space is arranged on a base sheet corresponding surface of a mold having a base sheet and a surface corresponding to a frame-like protrusion on the periphery of the base sheet, and a fiber affixed in this locking element accommodating space. A locking element consisting of a locking piece embedded in the base fabric is locked to the loop element such that the base fabric is exposed in the mold, and then the elastomeric polymer is poured into the mold to remove the locking element. A method for producing a mat base, which comprises molding a base sheet and a frame-like protrusion integrally with a locking element, and removing the mat base from the mold by peeling off the locking element and the fiber loop element.