JPH03247306A - Molded face fastener - Google Patents

Abstract

PURPOSE:To improve fitting contact, suppress slip, enhance coupling force and improve engagement effect by applying a pressure sensitive adhesive or an anti-slip agent on a part of the surfaces of many engaging elements. CONSTITUTION:A flexible polymer is molded to form engaging elements having columns 2 ends of which are shaped into umbrella-like expanded head portions 3 on a base material 1. Many engaging elements are arranged in the directions of Y so that lines are formed. Two molded face fasteners formed as mentioned above are combined and fitted to each other. When force is imposed in the direction of the engaging element lines, namely, in the direction of Y, the face fasteners tend to side in the direction of Y-axis. In order to improve the engagement between the molded face fasteners, a pressure sensitive adhesive 4 or an anti-slip agent is applied to the surfaces between the engaging elements on one face fastener of this molded face fastener.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a molded surface fastener, and particularly to a molded surface fastener that has a high locking effect when a pair of molded surface fasteners are fitted together.

[Conventional technology]

Conventionally, a molded hook-and-loop fastener having an engaging element with a swollen head on the light leakage of a large number of pillars arranged on at least one surface of a base material has been molded by injection molding or extrusion molding to have flexibility and elasticity. A double conical ladder shape with a constriction S on the surface of the substrate, and a mushroom-like ruru or thorn-like protrusion with a swollen head at the tip of the post. Japanese Utility Model Publication No. 44-27202 Publication 1 discloses a molded hook-and-loop fastener that is provided in a 6,50 hook-and-loop fastener to fit a nine-way protrusion between a ridged portion and a protrusion.
Hideko Publication No. 45-19126, Special Publication No. 48-2276
No. 8, Japanese Patent Publication No. 19386/1986.

Special Publication No. Sho 63-43081, No. Sho 63-1277
Publication No. 01,! Publication No. 1-37123, JP-A No. 2-
This method has been proposed in Publication No. 17006, etc.

[Line problem to be invented or solved]

Conventional molded hook-and-loop fasteners, particularly molded hook-and-loop fasteners in which pairs of molded hook-and-loop fasteners are fitted together, and woven hook-and-loop fasteners in which a number of loop-shaped engagement elements and a number of hook-shaped engagement elements t-i are combined. In contrast, since the engagement is simple, the engagement force is weak, and the engagement force is weak, sometimes causing sliding in a direction parallel to the surface.

The present invention solves the above-mentioned problems of such molded surface fasteners, and provides a molded surface fastener that does not slip, has high engagement force, and has a high locking effect. ] The present invention provides a molded hook-and-loop fastener deodorizer having a sharp engagement element in which a # head is provided at the tip of a large number of columns erected on at least one side of a base material; This is a molded surface fastener characterized in that a pressure sensitive adhesive or an anti-slip agent is applied to the parts.

That is, engaging elements having mushroom-shaped, thorn-shaped, or umbrella-shaped enlarged heads at the tips of nine pillars are arranged in a row on at least one side of the base material f! When the engaging elements of one hook-and-loop fastener are fitted and locked between the engaging elements of one hook-and-loop fastener, the fc mechanism increases the engagement of the fE-shaped drawing fastener. The surface of the engaging element is given adhesiveness or anti-slip property and L% is 0. An embodiment of the uninvented molded C17 asner will be described below with reference to one drawing.

FIG. 1 is a schematic diagram showing an example of an uninvented molded surface fastener, in which a soluble polymer is molded.

Engaging elements are formed on a base material 1 by shaping the tips of pillars 2 into umbrella-shaped enlarged heads 3, and a large number of the engaging elements are arranged in the Y direction to form rows. When all two of these molded hook-and-loop fasteners are fitted together and force is applied in the direction of the engagement element array, that is, in the Y-direction, the hook-and-loop fastener slides in the Y-axis direction, resulting in nine teeth.

This molded surface fastener is manufactured at a melting temperature of 90 to 320.
For example, a thermoplastic resin 1 that is concave in the range of °C.

Olefin resins such as polyethylene, ethylene copolymers, polypropylene, and propylene copolymers.

Polyvinyl acetate, vinyl acetate copolymer, ester resin, styrene copolymer, vinyl alcohol resin, polyvinyl chloride, vinyl chloride copolymer, polyester, polyester elastomer polyamide, polyamide elastomer polycarbonate, acrylic Molded with resin selected from polyurethane, polyurethane, etc. Further, the base material and the engaging element of the molded surface fastener may be made of different resins. In addition, the resin can be used as an inorganic photonic agent if necessary.

The composition, including all added colorants and various stabilizers, is melt-molded and further processed to form a molded hook-and-loop fastener.

Figure 2 is a cross-sectional view of the molded surface fastener, where l is the base material;
2ri is the pillar part of the engagement element, 3 is the enlarged head of the engagement element, and 4 is a pressure sensitive adhesive represented by an adhesive applied to the surface of the engagement element. This pressure-sensitive adhesive adheres to the engaging element of the mating hook-and-loop fastener to strengthen the engaging force or provide an anti-slip effect.

For example, the pressure-sensitive adhesive applied to this engagement element is 1.

Liquid rubber pressure sensitive adhesives made from liquid synthetic rubbers such as polybutadiene, polyisoprene, acrylonitrile butadiene copolymers, styrene butadiene copolymers, natural rubber, etc., and acrylic acid ester polymer copolymers. The pressure-sensitive adhesive is selected from acrylic pressure-sensitive adhesives, polyamide pressure-sensitive adhesives, rosin derivatives, silicone pressure-sensitive adhesives, etc. The effects of this pressure-sensitive adhesive can be achieved by selecting the type of adhesive, changing the compounding composition, adjusting the amount of application, or applying it to the entire surface of the engaging element as shown in FIG. 3 (1) K.

Rurui is a part of the engagement element as shown in FIG. 3 (8).

Furthermore, as shown in FIG. 3(2), the light intensity can be adjusted by selecting the application site, such as by causing light loss in the recesses provided between the engaging elements.

As shown in FIG. 4 (1), a polymer 5 having a high coefficient of friction μ may be applied to the surface of the engaging element. The friction coefficient μ between the element and the element is at least 0.7, preferably 1.
This is a polymer with a high coefficient of friction. A polymer coated surface with a small coefficient of friction will not be able to suppress sliding. Such high friction coefficient polymers include, for example, acrylic ester polymers, polyinoprene, inbrene copolymers, polybutadiene, styrene-butadiene copolymers, acrylonitrile-butadiene copolymers, polyurethane elastomers, polyester elastomers, and other elastic polymers. polymer,
Polyvinylidene chloride, vinylidene copolymer, etc.
It is a polymer that is non-adhesive and exhibits a high coefficient of friction when in use. These polymers are applied to the surface of the engagement element in a molten state, or are applied as a polymer solution or dispersion to the surface of the engagement element, and then hardened to form a polymer covered surface.

Application of the polymer film may be carried out in the same manner as in the case of the above adhesive.

Furthermore, as shown in FIG. 4 L2)'/C, an anti-slip agent 6 having a high coefficient of friction may be applied to the surface of the engaging element.

The anti-slip agent applied to the surface of the engagement element is an anti-slip agent with a high friction coefficient such that the friction coefficient between the anti-slip agent applied surface and the mating engagement element is at least 0.07, preferably 1 or more. An anti-slip agent applied surface with a small coefficient of friction does not suppress sliding.

This anti-slip agent exhibiting a high coefficient of friction is an oily substance that forms a film on the surface of the engaging element, for example, an oily substance or paste-like substance selected from mineral oil, vegetable oil, etc., or a condensation product thereof, and the anti-slip agent exhibits a high coefficient of friction. Those exhibiting a high coefficient of friction.

Furthermore, a plasticizer is added to the constituent material of the engagement element to partially plasticize its surface to make it slippery.

Further, in order to apply an adhesive or an anti-slip agent to the surface of the engagement element, it is preferable to provide a roughened surface 7 on the surface of the engagement element as shown in FIG. 5(1). The surface of the engaging element can be roughened by a solvent erosion method, an embossing method, a grinding method, or the like. Alternatively, abrasive grains such as metal oxide, metal carbide, or lamix may be applied to the surface of the engaging element using binder 1 and fingers to roughen the surface. In addition, the adhesion improver is an anti-slip agent applied to the engagement element, a resin or resin composition that restores affinity to both the polymer or pressure-sensitive adhesive and the engagement element wood material, or a polyurethane-based primer, rubber-based Primers, hardening resins, etc. Figure 5 (2)
The roughened surface of the engaging element is coated with at least 14 selected from anti-slip agents, high friction coefficient polymers, or pressure-sensitive adhesives.
2 is a sectional view of a surface 8 to which a similar substance has been applied. FIG. The treated surface of the engaging element has a high coefficient of friction of at least 0.7, preferably 1 or more, with respect to the engaging element of the mating partner. A roughened surface with a small coefficient of friction does not suppress sliding.

〔Example〕

Next, embodiments of the present invention will be explained using specific examples.

Note that parts and parts in the examples refer to weight unless otherwise specified.

Example 1 Polypropylene was melted and extruded 3: A molded hook-and-loop fastener having a large number of engaging elements in which the umbrella-shaped swollen head shown in FIG. A butadiene-based resin adhesive composition liquid was applied to the surface by a spray method and dried to form a pressure-sensitive adhesive layer on the surface of the engagement element. The engaging elements of another molded surface fastener were fitted between the engaging elements of the molded surface fastener on which this pressure-sensitive adhesive layer was formed. The two molded hook-and-loop fasteners had a good locking effect without sliding or coming off, and were suitable for use in engaging panels in construction work.

Example 2 A solution of linseed oil containing a curing agent was applied to the surface of the engaging element of the molded surface fastener of Example 1, and was dried and cured to form a linseed oil-cured pancreas on the surface of the engaging element.

This linseed oil-cured film and polypropylene, which is the material for forming the molded surface fastener, were used as friction elements, and a load of 1 kf (25
, 6 f/d), in which the engaging elements of the molded surface fasteners were fitted, did not slide off or disengage, and a good locking effect was obtained.

Example 3 A hardening agent was added to the surface of the engaging element of the molded hook and loop fastener of Example 1, and a solution composition containing silica powder added to nine seed oil in an amount of 25q6 based on the solid content was applied, dried and dried. It was cured to form a linseed oil cured film on the engaging portion. This linseed oil-cured film surface was a roughened anti-slip surface. If the engaging element of this molded hook-and-loop fastener is fitted with the engaging element of another molded hook-and-loop fastener whose surface has not been treated, it may slide off or misalignment may occur. A good locking effect was obtained.

〔Effect of the invention〕

The molded surface fastener of the present invention is a molded surface fastener that has good fitting adhesion, suppresses slippage, has high bonding strength, and has a high locking effect. Please note that the molded hook-and-loop fastener of the present invention is not limited to molded hook-and-loop fasteners, but can also be used by engaging the molded hook-and-loop fastener with other engaging elements, such as a nail-shaped hook or a hook having a swollen head. That's good too.

[Brief explanation of drawings]

FIG. 1 is a perspective view of a molded surface fastener of the present invention,
Figure 2 is a cross-sectional view of the molded surface fastener, and Figure 3 (1
), (2), and (8) are cross-sectional views showing the application state of Fi pressure-sensitive adhesive, etc., and Fig. 4 (1) and (2) are coated with a polymer with a high friction coefficient or an anti-slip agent on the surface of the engaging part. 5 is a cross-sectional view of a molded hook-and-loop fastener with a roughened surface, and (2) is a cross-sectional view of a surface of an engaging element with a roughened surface. FIG. 3 is a cross-sectional view showing a state in which an anti-slip agent and the like have been applied. DESCRIPTION OF SYMBOLS 1: Base material, 2: Strut part of engagement element, 3: Enlarged head of engagement element, 4: Pressure sensitive adhesive, 5: High friction coefficient poly 1-16:
Anti-slip agent, 7: Roughened portion, 8: Roughened portion to which anti-slip agent has been applied, Y: Arrangement direction of i joints and sliding direction of hook-and-loop fastener.

Claims (1)

[Claims] 1. A pressure-sensitive adhesive or an anti-slip agent is applied to a part of the surface of the engaging element, which has a swollen head at the tip of a large number of columns erected on at least one surface of the base material. Molded hook-and-loop fastener.