JPH0669744B2 - Non-slip sheet - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (a) Field of Industrial Application The present invention relates to a non-slip sheet for preventing slippage of a person or an article.

(B) Conventional Technology Conventionally, in general households, etc., in order to prevent slipperiness of a doormat, the doormat is usually fixed with an adhesive tape, and when pants are fixed to a hanger, the doormat is fixed to a support. It is practiced to fix a string and hang pants on the string.

In addition, in general households and shops such as coffee shops, and design offices, etc., the tea siding and coasters are not slippery, the chairs are not slippery, or the underlay in the drawer of the desk (movement of articles is prevented).
To prevent the safety ruler from slipping, attach a weak adhesive tape to the lower surface of the tea cup or coaster, attach a hard rubber to the lower end of the chair leg, or adhere to the underlay or the lower surface of the safety ruler. A tape is provided.

Further, in order to prevent slipping of glasses, an adhesive tape is generally wound around the ear hooks of the glasses.

By the way, as a non-slip sheet material, a support is coated with a foamable microcapsule paint, and the coating amount is ² to 8 g / m ²
The microcapsule coating layer is provided, and the microcapsule coating layer is heated and foamed so that cells having a cell diameter of 20 μm or more are 50
% Of the microcapsule foam layer is provided. (JP-A-62-33633).

(C) Problem to be Solved by the Invention However, in the above, when the entrance mat is fixed with the adhesive tape, the adhesive is transferred to the floor, and the adhesive transferred to the floor adheres to the floor due to dust and the like. Since the surface is easily soiled, when hanging the pants with a string, there is a problem that the installation is troublesome or that the pants are not properly attached to the string and the pants fall after the pants are installed.

In addition, in the above, when a weak sticky adhesive tape is provided on the lower surface of the tea cup or coaster, it is necessary to wash it when the tea cup etc. becomes dirty, but this washing not only makes it not so clean but also makes it sticky. The adhesiveness of the tape is significantly reduced, and it is not possible to realize a sufficient anti-slip effect for tea shavings and coasters.Furthermore, if a hard rubber is attached to the lower end of the chair leg, the friction resistance is low and a sufficient anti-slip effect is obtained. In addition, if the underlay in the drawer of the desk and the adhesive tape on the underside of the safety ruler are not provided, not only the adhesive tape part of this underlay and the safety ruler is easily soiled, but also the anti-slip effect gradually increases. There is a problem such as decrease.

Further, the above-mentioned ones have problems that not only the ear hooks are easily soiled by using glasses, but also the anti-slip effect is gradually reduced.

In addition, in all of the above items, the adhesive tape is cut with scissors or a cutter knife so that it conforms to the shape of the adherend, but at the time of this cutting process, the adhesive tape becomes scissors or a cutter knife. It is attached and difficult to cut.

The above-mentioned ones have a coefficient of static friction (Tappi T81
5 Su-72 is an improved method of measuring static friction, but it has little unevenness on the surface and is hardly effective as a slip stopper for people's movements or moving articles. Of.

For this reason, it cannot be used as an anti-slip doormat, a trousers immobilizer, a tea lounger or a coaster anti-skid, a chair anti-slip, and even eyeglasses anti-slip.

The present invention has been made in view of such problems of the prior art, and a high molecular polymer composition obtained by mixing a high molecular polymer having rubber elasticity with a molecular weight of 100,000 to 1,000,000 and a heat-expandable polymer. By forming a material layer on a sheet-shaped base material and thermally expanding it, it is soft and has cushioning properties, and has an excellent anti-slip effect on a person's movements or moving articles. Moreover, the object is to provide a non-slip sheet that is not easily soiled, and can be easily removed by washing if soiled due to long-term use, and in addition, processing such as cutting is extremely easy. And

(D) Means for Solving the Problems In order to achieve the above object, the non-slip sheet according to the present invention comprises 100 parts by weight of a high molecular polymer on one or both sides of a sheet-like substrate having a thickness of 0.01 mm to 10.0 mm. A laminated sheet having a polymer composition layer containing 5 to 100 parts by weight of a heat-expandable polymer, wherein the polymer has rubber elasticity with a molecular weight of 100,000 to 1,000,000. And, the thickness of the high molecular polymer composition layer is
It is characterized by being 0.05 mm to 10.0 mm.

The sheet-shaped substrate used in the present invention is a sheet-shaped substrate having heat resistance at a temperature of 80 ° C. or higher, and is particularly limited as long as its thickness is in the range of 0.01 mm to 10.0 mm. Instead, specifically, various plastic films, woven fabrics, non-woven fabrics, metal foils, paper plates, expanded bodies or composites of two or more of these, and further resin coating sheets, resin impregnated sheets and the like can be mentioned.

As described above, the thickness of the sheet-shaped substrate is 0.01 mm to 10.0.
mm is good. If the thickness is less than 0.01 mm, the strength of the sheet becomes insufficient, and it may be easily cut or torn during use or handling, which is not preferable. On the other hand, if the thickness exceeds 10.0 mm, the flexibility of the sheet will be impaired and it will be difficult to handle, and the cost will be high and the user will be difficult to cut with scissors, a cutter knife, etc., which is not preferable.

Therefore, from these viewpoints, the range of 0.05 mm to 5.0 mm is most preferable.

The high molecular weight polymer used in the present invention has a molecular weight of
Those having rubber elasticity of 100,000 to 1,000,000 can be mentioned. Specifically, for example, a natural polymer such as natural rubber, acrylic rubber, acrylonitrile rubber, nitrile rubber, styrene rubber, styrene butadiene rubber, butadiene rubber, isoprene rubber, chloroprene rubber, butyl rubber or vinyl chloride, or two or more of them. And a mixture of two or more thereof.

These high molecular polymers are easy to handle and easy to form a high molecular polymer composition layer described later,
It is used as the main ingredient diluted with an organic solvent to 15 to 50% by weight.

When the molecular weight is 100,000 or less, the polymer polymer composition layer after expansion becomes hard and the soft feeling when touched by the hand is impaired, while when the molecular weight is 1 million or more, the solution viscosity becomes high. Since it is high, it is difficult to form a uniform polymer composition layer, which causes a problem in production, which is not preferable. From these viewpoints, the molecular weight is 300,000 to
Most preferred is 800,000.

As the heat-expandable polymer used in the present invention, those disclosed in JP-B-60-21770 are preferably used.

That is, this is a polymer containing at least one component of acrylonitrile, and is a microcapsule of a volatile swelling agent which becomes gaseous at a temperature below the softening point of the polymer.

And, the present invention provides a laminated sheet in which a polymer polymer composition layer containing 5 parts by weight to 100 parts by weight of a heat-expandable polymer is formed on one side or both sides of the above-mentioned sheet-shaped substrate with respect to 100 parts by weight of the polymer. The polymer having a molecular weight of 100,000 to 1,000,000 has rubber elasticity, and the thickness of the polymer polymer composition layer after thermal expansion is 0.
It is configured to be between 05mm and 10.0mm.

If the blending ratio of the heat-expandable polymer is less than 5 parts by weight with respect to 100 parts by weight of the high-molecular weight polymer, the coefficient of thermal expansion will be small, and the non-slip effect will be poor. If it exceeds, the expansion ratio becomes too large and the strength of the high molecular polymer composition layer after thermal expansion becomes weak and easily peeled from the sheet-shaped substrate, or the high molecular polymer composition layer itself may be destroyed by impact. However, in any case, it is not preferable. From these viewpoints, the blending ratio of the heat-expandable polymer is preferably in the range of 10 parts by weight to 60 parts by weight with respect to 100 parts by weight of the high molecular polymer.

The thickness of the high molecular polymer composition layer of the present invention is preferably about 0.05 mm to 10.0 mm after thermal expansion. Its thickness
If it is less than 0.05 mm, the layer after thermal expansion does not have cushioning properties and the non-slip effect becomes poor.On the other hand, if the thickness after thermal expansion exceeds 10.0 mm, the non-slip effect does not decrease, and the polymer The polymer composition layer tends to be easily peeled from the sheet-shaped substrate, resulting in poor durability, and the layer is too thick, making it difficult to handle depending on the application, and further scissorability, cutting workability with a cutter knife, etc. Is not preferable because it is difficult to obtain the intended sheet because of the deterioration of

If desired, pigments, dyes, fillers, antioxidants, ultraviolet absorbers, curing agents, flame retardants, fragrances, etc. may be added to the above polymer composition.

In the non-slip sheet of the present invention, a thickness of 0.01 mm
On one side of a sheet-like base material of ~ 10.0 mm, 100
A high-polymer composition layer containing 100 parts by weight of a heat-expandable polymer with respect to parts by weight is formed, and the high-molecular polymer has rubber elasticity with a molecular weight of 100,000 to 1,000,000, and The thickness of the high-molecular polymer composition layer after thermal expansion is configured to be 0.05 mm to 10.0 mm, and by providing an adhesive layer on the other surface of the sheet-shaped substrate, soft and cushioning properties are imparted. It has an excellent anti-slip effect on people's movements and moving objects, and is resistant to dirt, and if it becomes dirty after a long period of use, it can be easily removed by washing. Therefore, it is preferable that processing such as cutting is extremely easy, and that the formation of the pressure-sensitive adhesive layer makes it extremely easy to attach to the adherend.

In the non-slip sheet of the present invention, it is preferable that the high molecular polymer composition layer has an expansion ratio of 2 to 20 for the reasons described below.

If the expansion ratio of the high-molecular polymer composition layer is less than 2 times, the layer after thermal expansion does not have cushioning properties and the non-slip effect is poor, which is not preferable. It is not preferable because it tends to peel off from the substrate and durability deteriorates.

(E) Action The non-slip sheet of the present invention comprises a high-molecular polymer composition layer containing a high-molecular polymer and a heat-expandable polymer as essential components on one or both sides of a sheet-shaped substrate having a predetermined thickness, By thermally expanding the high molecular polymer composition layer, the high molecular polymer composition layer becomes soft after thermal expansion, so that it has a high friction resistance and an excellent anti-slip function, and since it has no surface tackiness, it does not easily become dirty. Even if it becomes dirty due to long-term use, this dirt can be easily removed by washing, and it is water-resistant and has the effect of being usable for a long time.

Further, since the non-slip sheet of the present invention can be easily cut by anyone with scissors, a cutter knife, etc., it is a very original item that can be used according to the convenience of the user.

By the way, it is not clear why the non-slip sheet of the present invention ensures extremely excellent anti-slip properties, but the high molecular polymer composition layer after thermal expansion has a large friction due to the fine projections on its surface, and It is understood that when an object is placed due to the elasticity of the layer, the air layer on the contact surface is removed by its own weight and the sheet surface acts like a suction cup.

This point is inferred from the fact that, as shown in Table 1 which will be described later, when the load is increased, the inclination angle increases and it becomes difficult to slip off.

In the non-slip sheet of the present invention, on one surface of a sheet-shaped substrate having a predetermined thickness, a polymer polymer composition layer containing a polymer and a heat-expandable polymer as essential components is formed,
By providing a pressure-sensitive adhesive layer on the other surface of the sheet-shaped substrate and thermally expanding the high-molecular polymer composition layer, in addition to the above-mentioned function, the pressure-sensitive adhesive layer is formed to attach to an adherend. Has an action that can be performed extremely easily.

In the non-slip sheet of the present invention, the high molecular polymer composition layer having an expansion ratio of 2 to 20 has an excessive cushioning property as a sheet and has a soft touch, and also when an article is placed. The non-slip effect is extremely large.

(F) Examples Hereinafter, the present invention will be described in detail based on examples, but the present invention is not limited thereto.

Example 1 Acrylic rubber having a molecular weight of 500,000 to 700,000 (trade name: Paracron W2
48E, Negami Plant Co., Ltd. 100 parts by weight was mixed with 20 parts by weight of a heat-expandable polymer (trade name: Microsphere F-30D, Matsumoto Yushi-Seiyaku Co., Ltd.), and this mixture was diluted with toluene as a diluting solvent. The composition was adjusted so that the resin content concentration was 30% by weight.

This is cast-coated on one side of a sheet-shaped base material having a thickness of 50 μm of a polyester film (trade name Lumirror, manufactured by Toray Industries, Inc.), and heat-dried at a temperature of 120 ° C. for 2 minutes. A non-slip sheet of the present invention having a film thickness after thermal expansion of 0.3 mm was obtained.

Example 2 100 parts by weight of natural rubber having a molecular weight of 400,000 to 650,000 (trade name RSS1 grade) was added to a heat-expandable polymer (trade name Microfare F-50).
50 parts by weight of D, manufactured by Matsumoto Yushi-Seiyaku Co., Ltd.) were mixed, and the mixture was adjusted to a resin concentration of 30% by weight with toluene as a diluting solvent.

This is cast-coated on one side of a sheet-shaped base material having a thickness of 50 μm of a polyester film (trade name Lumirror, manufactured by Toray Industries, Inc.), and heat-dried at a temperature of 140 ° C. for 2 minutes to obtain A non-slip sheet of the present invention having a film thickness after thermal expansion of 0.3 mm was obtained.

Example 3 100 parts by weight of a chloroprene rubber having a molecular weight of 600,000 to 750,000 (trade name: Neoprene AF, manufactured by Showa DuPont Co., Ltd.) and 100 parts by weight of a heat-expandable polymer (trade name: Microfair F-80D, manufactured by Matsumoto Yushi-Seiyaku Co., Ltd.) 20 parts by weight were mixed, and the mixture was adjusted with toluene as a diluting solvent so as to have a resin content concentration of 30% by weight.

This is cast-coated on one surface of a sheet-shaped base material of a polyester film having a thickness of 50 μm (trade name Lumirror, manufactured by Toray Co., Ltd.), and heat-dried at a temperature of 150 ° C. for 2 minutes to obtain A non-slip sheet of the present invention having a film thickness after thermal expansion of 0.3 mm was obtained.

Comparative Examples 1 to 3 A hard vinyl chloride sheet (trade name: vinyl foil, manufactured by Mitsubishi Resins Co., Ltd.) is used as Comparative Example 1, high quality paper is used as Comparative Example 2, and a decorative plate (coated with polyester resin is used as Comparative Example 3). Laminated plates) were used.

Each of the above-mentioned example products and each comparative example product were respectively horizontally attached to a test stand having a length of 300 mm and a width of 100 mm, and at one end thereof,
A glass plate to which the load shown in Table 1 is applied is placed.

Next, the other end of this test stand was fixed, and the one on which the load of this test stand was applied was gradually rotated upward at a speed of 50 mm / min, and the tilt angle at which the object slid down was measured.

As shown in Table 1, the product of Example has a significantly higher inclination angle of sliding of the object than the product of Comparative Example, that is, the effect of preventing the object from sliding is significantly high, and the load is increased. It is observed that the tilt angle is high. This is because the high molecular polymer composition layer after thermal expansion has large friction due to the fine protrusions on the surface, and when the object is placed due to the elasticity of this layer, the air layer on the contact surface is removed by its own weight. The seat surface acts like a sucker,
For this reason, it is understood that as the load increases, the dent becomes more difficult to move, and the air layer is further removed to improve the suction cup effect.

Due to these facts, the non-slip material obtained in the present invention has an extremely excellent non-slip property and also has excellent flexibility, and further, its thickness is appropriate and the cutting processability is good.

(G) Effects of the Invention Since the present invention is configured as described above, it has the effects described below.

In the non-slip sheet according to claim 1, a thickness of 0.01
A laminated sheet in which a polymer polymer composition layer containing 5 parts by weight to 100 parts by weight of a heat-expandable polymer with respect to 100 parts by weight of a polymer is formed on one or both sides of a sheet-shaped substrate having a size of mm to 10.0 mm. The polymer having a molecular weight of 100,000 to 1,000,000 has rubber elasticity, and the thickness of the polymer polymer composition layer after thermal expansion is 0.05 mm to 10.0 mm.
When the thickness is set to mm, the high-molecular polymer composition layer after thermal expansion imparts softness and cushioning property to exhibit excellent anti-slip properties against human movements and moving articles, and moreover, it is hard to be soiled. Even if it becomes dirty due to long-term use, this dirt can be easily removed by washing, and it is water resistant and has the effect of being usable over a long period of time.

The non-slip sheet of the present invention is extremely useful because it can be easily cut by anyone with scissors, a canter knife or the like.

The non-slip sheet according to claim 2 has a thickness of 0.01
mm-10.0mm sheet-shaped substrate, one side of high polymer
A high molecular polymer composition layer containing 5 parts by weight to 100 parts by weight of a heat-expandable polymer with respect to 0 parts by weight, wherein the high molecular polymer has rubber elasticity with a molecular weight of 100,000 to 1,000,000, and The thickness of the high molecular polymer composition layer after thermal expansion is configured to be 0.05 mm to 10.0 mm, and by providing an adhesive layer on the other surface of the sheet-shaped substrate, in addition to the above effects Thus, the formation of this pressure-sensitive adhesive layer has an effect that it can be attached to an adherend very easily.

In the non-slip sheet according to claim 3, since the high-molecular polymer composition layer has an expansion ratio of 2 to 20 times, in addition to the above effects, it has an appropriate cushioning property,
It has a soft feel and has a very large non-slip effect when an article is placed.

Claims (3)

[Claims] 1. A polymer polymer composition containing 5 to 100 parts by weight of a heat-expandable polymer with respect to 100 parts by weight of the polymer on one or both sides of a sheet-like substrate having a thickness of 0.01 mm to 10.0 mm. A layered laminated sheet, wherein the high molecular weight polymer has a rubber elasticity of 100,000 to 1,000,000, and the thickness of the high molecular weight polymer composition layer after thermal expansion is 0.05 mm to Non-slip sheet characterized by 10.0 mm. 2. A polymeric polymer composition layer containing 5 parts by weight to 100 parts by weight of a heat-expandable polymer with respect to 100 parts by weight of a polymeric polymer on one side of a sheet-like base material having a thickness of 0.01 mm to 10.0 mm. Formed, the high molecular weight polymer has a rubber elasticity of 100,000 to 1,000,000, and the thickness of the high molecular weight polymer composition layer after thermal expansion is 0.05 mm to 10.0 mm. A non-slip sheet, characterized in that an adhesive layer is provided on the other surface of the sheet-shaped substrate. 3. The high-polymer composition layer has an expansion ratio of 2 to
The non-slip sheet according to claim 1 or 2, which is 20 times in number.