JP2008012078A - Sliding sheet - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a sliding sheet being cut into a dimension fitted to the dimension of an article display rack, freely changing its shape by just sticking the sliding sheet on a rack material using the adhesion property without using adhesive, being used for different articles at a single inclination angle because even articles have different materials have small difference in a sliding slope angle, inexpensively arranging a sheet meeting with the requirement when the sheet cannot retain the sliding property any more by the use, removing it by just turning over the unnecessary sliding sheet alone from the rack surface, easily replacing the sheet by just laying a new sliding sheet and having little problem of disposal. <P>SOLUTION: This sliding sheet is formed with a sliding layer 2 on one face of a base material and an adhesion layer 3 on the other face respectively, is simply stuck without using adhesive and is simply peeled. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

The present invention relates to a sliding sheet that can be installed on a shelf member that can easily move a product placed on a shelf by inclining the shelf in a product display shelf or the like.

When a part of the product is sold and a product space is generated, the product placed on the product display shelf is automatically moved to an empty product space by sliding on the shelf. This shelf is a metal plate having excellent slipperiness, which is obtained by applying a slippery resin or the like to the metal plate, baking and curing it in a hot air furnace, a heating furnace, an infrared furnace or the like and then drying it.

JP-A-8-183137 JP-A-2005-96442

However, when a shelf is manufactured by applying a fluororesin or the like to a metal plate and baking it at 240 ° C. or more and 300 ° C. or less as in Patent Document 1, there is a problem that labor and time are required and expensive.
In addition, as disclosed in Patent Document 2, there is a problem that if a lubricating coating film of a fluororesin is formed on the surface of the metal plate that has been embossed, the cost is further increased.
Therefore, the size and shape of the shelf will be regulated to some extent, and it will be difficult to produce a product display shelf of free size, and the product to be displayed will change, and the material of the product will change from, for example, a glass bottle to a pet When changing to bottles and steel cans, the coefficient of static friction between the bottom of the product and the surface of the shelf is different, so the tilt angle at which the product slides will be different, and the product will not move on the same inclined shelf. It was.
Furthermore, although the initial slipperiness is excellent, the sliding surface of the coating film surface of the shelf and the bottom surface of the product slide in contact with each other, so the coating film is easily worn and the sliding property of the shelf surface cannot be maintained for a long period of time. The shelves themselves must be replaced. Then, the cost of the new shelf to be replaced is expensive, the replacement of the shelf in the display case is troublesome, and there is a problem in the disposal of the shelf that has become unnecessary after the replacement.
In view of the above points, the present invention can be cut to a size suitable for the size of a merchandise display shelf, and by simply sticking a sliding sheet on the shelf using adhesiveness without using an adhesive. The shape can be freely changed, and even if the product is made of different materials, the difference in the angle of sliding is small, so it can be used at a single angle of inclination. It is possible to arrange a sheet that meets the requirements at a low cost and easily replace it, such as by simply turning the sliding sheet that is no longer needed from the shelf surface by hand, and by simply laying a new sliding sheet. The object is to provide a sliding sheet with less disposal problems.

The present invention has solved the above-mentioned problems by a sliding sheet characterized in that a slipping layer is formed on one surface of a substrate and an adhesion layer is formed on the other surface. Furthermore, the slipperiness can be improved by using at least a silicone resin in the slippery layer.

According to the sliding sheet of the present invention, the sliding surface is formed by cutting the sliding sheet into the size of the commodity display shelf and the shape of the necessary part and placing it on the shelf material. The size of can be freely. In addition, products with different materials have good slipperiness, and since there is no significant difference in slipperiness, there is an advantage that the tilt angle at which the product slips is small and can be used with one tilt angle. Furthermore, if the slipperiness can no longer be maintained, it can be easily replaced at a low price, and by incorporating fine particles of the lubricant into the slippery layer, the surface of the slip sheet can be roughened to reduce the contact point with the bottom of the product. In addition to the reduction of the coefficient of friction due to the above, the lubricity of the fine particles themselves can be imparted, so that it is possible to easily produce sheets having different slip properties.

Embodiments of the present invention will be described below.
As shown in FIG. 1, the present invention comprises a sliding sheet in which a slipping layer is formed on one surface of a substrate and an adhesion layer is formed on the other surface. The substrate is made of paper, various processed papers, plastics, Metal foil, thin plate, etc. may be used. Preferably, a polyester film having a thickness of 50 to 200 μm is preferable. If it is thinner than 50 μm, the strength as a sliding sheet is lowered, and if it is thicker than 200 μm, the cost is increased, resulting in an economic effect. Disappear.
Lubricants forming the slipping layer are known waxes, amides of higher fatty acids, phosphate esters, esters or salts, higher alcohols, fluorine compounds, boron nitride, molybdenum disulfide, silicone resins, alcohol-modified silicone oils. , Silicone wax, silicone-based hard coat agent, etc., and this slipping layer is formed by simply applying a lubricant to one side of the substrate and then heating it at a low temperature, for example, , Shin-Etsu Chemical Co., Ltd. product name KR400, KP851 and SEPA-COAT silicone resin can be easily dried at low temperature or less than about 150 ° C. A slippery layer can be formed. Further, the lubricant may be formed by chemically reacting with an isocyanate, or may be formed by chemically bonding the lubricant to a binder resin with polyisocyanate. Anionic surfactants are also used, but alkyl phosphate esters are preferred. As the binder resin, a polyester resin, a polyacrylate resin, a polyvinyl butyral resin, a polyacetoacetal resin, or the like is used, and a polyvinyl butyral resin or a polyacetoacetal resin is particularly preferable. The amount of the polyisocyanate used to bind the lubricant and the binder is suitably in the range of 5 to 200 parts by weight with respect to 100 parts by weight of the resin binder + lubricant constituting the slipping layer. A coating solution in which these materials are dissolved or dispersed in an appropriate solvent such as acetone or toluene is formed by coating and drying with a conventional coating means such as a gravure coater, roll coater, or Meyer bar. Accordingly, it is possible to form a slipping layer by further heat treatment. The thickness of the slipping layer is 5 to 200 μm, and if it is thinner than 5 μm, the durability of the slipping effect is lost due to wear on the bottom of the product. If it is thicker than 200 μm, a lot of wear residue is generated and the slipping property is affected. Because.
In order to further improve the slipperiness, fine particles having an average particle size of 0.1 to 30 μm may be added to the slippery layer to reduce the contact area with the bottom surface of the product and increase the slipperiness. The material of the fine particles is not particularly limited, and various metal, inorganic, and organic particles can be used. Silicone spherical particles, synthetic amorphous silica, carbon black, alumina, titanium oxide, calcium silicate, and aluminum silicate are particularly effective. In particular, the average particle size is preferably 0.5 to 20 μm. When the average particle size is smaller than 0.1 μm, the effect of imparting slipperiness cannot be obtained, and when it exceeds 30 μm, the coating stability is lowered. Furthermore, dispersibility in the coating liquid can be improved by using composite fine particles of two types of fine particles having different average particle diameters. The addition ratio of fine particles to the polymer substance can be used in the range of 0.1 to 200% by weight. In particular, it exhibits stable characteristics in the range of 6 to 100% by weight. By containing fine particles, the surface of the sliding sheet can be roughened and the friction coefficient can be reduced by reducing the contact point with the bottom of the product. Different sliding sheets can be produced freely.
In order to ensure adhesion of the slipping layer on the substrate, a primer layer may be provided on the substrate in advance. The primer should be selected according to the material of the substrate and the type of the slipping layer. For example, a suitable material may be found from acrylic resin, polyester resin, polyvinyl acetate resin, epoxy resin, and the like.
The polymer material forming the adhesion layer is preferably a foamable resin or silicone rubber, and the silicone rubber may be a peroxide-crosslinked silicone polymer or an addition-polymerized silicone polymer. A linear polyorganosiloxane having a vinyl group only at the terminal and a linear polyorganosiloxane having a vinyl group at both terminals and side chains are preferable. A silicone coating solution selected from these is formed by coating and drying by the same conventional coating means as that for forming the slipping layer, but if necessary, heat treatment is performed to form an adhesion layer. May be. This is because the thickness of the adhesion layer is 1.1 to 100 μm, and if it is less than 1.1 μm, good adhesion cannot be exhibited, and if it exceeds 100 μm, it is difficult to produce an inexpensive sliding sheet.
The sliding sheet manufactured in this way can be used for glass display shelves by changing the combination of the above materials, so it can be used for glass display shelves, and dyes and pigments can be added. The sliding sheet colored by can be produced. This colored sliding sheet can be used for distinguishing products, or on a shelf or the like for expressing an atmosphere of warmth or coolness.
As a method of using this sliding sheet, when the product display shelf is installed on the shelf upper surface with an inclination of about 2 to 5 degrees using the adhesion of the adhesive layer of this sliding sheet, a part of the product in the front row When the item is removed, the rear row of products in that position will naturally slide out due to gravity and refill after the removed item.
Since the sliding sheet is about 0.5mm thick, it can be cut into any shape with general scissors, and if the product becomes slippery or dirty, the sliding sheet is bonded onto the shelf with an adhesive. Rather than being attached, it is simply adsorbed between the shelves by the adhesion of the adhesive layer, so it can be easily peeled off by lifting the edge of the sliding sheet with your finger and can be replaced with a new sliding sheet It is.
Further, the slipperiness can be easily changed by changing the type of lubricant and the degree of roughening of the surface, so that it can be applied to the movement of many kinds of products of different materials.

The present invention will be described with reference to examples.
Example 1
Apply a coating liquid that is a mixture of silicone urethane resin and isocyanate to one side of the base material of the polyethylene terephthalate film to form a slipping layer, and then apply silicone made of polyorganosiloxane to the other side. A sliding sheet having a thickness of 0.5 mm, a width of 100 mm, and a length of 200 mm formed with an adhesion layer was prepared.
As Comparative Example 1, a glass plate having a thickness of 3 mm, a width of 100 mm, and a length of 200 mm was prepared.
As Comparative Example 2, a melamine plate having a thickness of 0.5 mm, a width of 100 mm, and a length of 200 mm prepared by coating an iron thin plate with melamine resin and heat-treating it was prepared.
These sheets and each plate are sequentially attached to the rising plate of the static friction coefficient measuring machine TYPE: 10 made by Shinto Kagaku Co., Ltd., and three kinds of products such as steel cans, plastic bottles, and glass bottles are sequentially placed on the sheets. The rising plate started to tilt from the horizontal state, and the inclination angle when each product started to slip was read. The measurement was performed three times in the same combination, and the average value of the three times was taken as the slip angle.
The results are shown in Table 1.

(Table 1) Unit: degree

As is clear from the above test results, the slip sheet of Example 1 was excellent in slipperiness with no great difference in slip angle even if the type (material) of the product was different.
On the other hand, the glass plate of Comparative Example 1 and the melamine plate of Comparative Example 2 had different slip angles when the product types (materials) were different, and were less slippery than the slip sheet of the present invention.

1 illustrates one embodiment of the present invention.

Explanation of symbols

1 base material 2 slippery layer 3 adhesion layer

Claims (2)

A sliding sheet, wherein a slipping layer is formed on one surface of a substrate and an adhesion layer is formed on the other surface. The sliding sheet according to claim 1, wherein the sliding layer contains at least a silicone resin.

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