JP2006299452A - Adsorbing sheet - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an adsorbing sheet capable of preventing it from breaking in the case of peeling off the adsorbing sheet having adsorbing layers on both surfaces from a wall surface or peeling off an article such as a tissue paper case. <P>SOLUTION: This adsorbing sheet is provided by joining adsorbing layers 1, 2 consisting mainly of an acrylic resin and also having a multiple number of fine bubbles on both surfaces of a sheet core 3 consisting of a non-woven fabric so as to be able to prevent the adsorbing sheet from breaking with the sheet core 3 in the case of peeling off the adsorbing sheet having adsorbing layers on both surfaces from the wall surface or peeling off the article such as the tissue paper case. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to an adsorption sheet having adsorption layers on both sides.

The suction sheet is described in Non-Patent Document 1, for example. There is also known an adsorbing sheet made of an acrylic resin having microbubbles on both sides and configured to adsorb and fix one surface to a wall surface and adsorb and fix an article such as a tissue case on the other surface.
KOKUYO 2005 Office Surprise Edition KOKUYO Co., Ltd.

  However, since the entire adsorbing sheet having adsorbing surfaces on both sides is made of a synthetic resin, the adsorbing sheet is peeled off from the wall surface when the article is peeled off from the adsorbing sheet in order to replace the article, and the adsorbing sheet is washed. When removing, the adsorbing sheet is easily broken by the peeling force, and an improvement measure has been demanded.

  The present invention has been made in view of such circumstances, and a main object of the present invention is to provide a suction sheet that can be prevented from being broken when peeled off by providing a sheet core between the suction layers on both sides. It is in.

  Another purpose is to increase the bonding strength between the sheet core and the adsorption layer by providing an adsorption layer containing acrylic resin as the main component on both sides of the nonwoven fabric sheet core and having a plurality of microbubbles. It is an object of the present invention to provide an adsorption sheet that can be made thin and relatively light.

  The adsorbing sheet according to the first invention has adsorbing layers on both sides, and has a sheet core between the adsorbing layers.

  In the first invention, since the adsorption layers on both sides are bonded to the sheet core, the adsorption sheet is broken when the article is peeled off from the adsorption sheet and when the adsorption sheet is peeled off from the wall surface. It can be prevented by the lead, and durability can be enhanced.

  The adsorbing sheet according to the second invention is characterized in that the sheet core is a non-woven fabric, the adsorbing layer has an acrylic resin as a main component and a plurality of microbubbles.

  In the second aspect of the invention, since the acrylic resin adsorption layer is bonded to the nonwoven fabric sheet core, the bonding strength between the sheet core and the adsorption layer can be increased. Moreover, since the sheet core is a non-woven fabric, it can be made relatively thin and relatively light.

  According to the first invention, it is possible to prevent the adsorbing sheet from being broken by the sheet core, and it is possible to improve durability.

  According to the second invention, the bonding strength between the sheet core and the adsorbing layer can be increased, and the sheet core can be made relatively thin and relatively light by the nonwoven fabric sheet core.

  Hereinafter, the present invention will be described in detail with reference to the drawings illustrating embodiments thereof. FIG. 1 is a perspective view showing the configuration of the suction sheet, and FIG. 2 is an enlarged sectional view showing the configuration of the suction sheet.

  The adsorption sheet has adsorption layers 1 and 2 on both sides, and a sheet core 3 is provided between the adsorption layers 1 and 2.

  The sheet core 3 is made of a relatively thin nonwoven fabric formed by entanglement of thermoplastic fibers such as polyester, and has an appropriate degree of flexibility.

  The adsorbing layers 1 and 2 are made of a synthetic resin material obtained by blending a filler with an emulsion of an adhesive acrylate copolymer and a methyl methacrylate butadiene copolymer that is well compatible with thermoplastic fibers.

  The adsorption layers 1 and 2 are formed by the following process. A stirring chamber communicating with an air source is provided in the middle of the delivery path for sending out the solution of the synthetic resin material described above by a pump, and the solution supplied to the stirring chamber is stirred by blowing air into the stirring chamber. The solution is bubbled, the foam solution is applied to both surfaces of the sheet core 3 from the outlet of the delivery path, the applied foam solution is leveled with a doctor blade, and then dried in a drying chamber for several minutes. The foamed solution is cured in a sticky state by being taken out of the drying chamber and cooled to form adsorption layers 1 and 2 having a plurality of microbubbles and having the surface microbubbles open to the outside. The A part of the solution applied to both surfaces of the sheet core 3 penetrates into the sheet core 3.

  The acrylate ester copolymer and the methyl methacrylate butadiene copolymer in the foamy solution are chemically reacted by drying when forming the above-described adsorption layers 1 and 2, and a cross-linking bond is formed between the molecules. All bubbles in the solution become microbubbles. The shape retention of the adsorbing layers 1 and 2 can be enhanced by the cross-linking of the acrylic ester copolymer and the methyl methacrylate butadiene copolymer in this solution. Moreover, since microbubbles are also generated on the surfaces of the respective adsorption layers 1 and 2, when one of the adsorption layers 1 and 2 is pressed against the wall surface, each of the plurality of microbubbles opening on the surface discharges internal air. The vacuum adsorption action and the adhesiveness enhance the adsorption property of the adsorption layers 1 and 2, and an article such as a tissue case is pressed against the other of the adsorption layers 1 and 2. Each of the plurality of microbubbles opened on the surface discharges the internal air and performs a vacuum adsorption action, and this vacuum adsorption action and the adhesiveness enhance the adsorptivity of the adsorption layers 1 and 2.

  As described above, the suction sheet in which the suction layers 1 and 2 are formed on both surfaces of the sheet core 3 is cut into an appropriate shape. For example, when adsorbing and fixing relatively heavy items such as tissue cases, the size and weight of the items should be relatively large, and relatively light items such as wrap films and aluminum wheels may be adsorbed and fixed. If so, the size is relatively small corresponding to the size and weight of the article.

  3 and 4 are explanatory views showing the usage state of the suction sheet according to the present invention. The adsorbing sheet configured as described above can adsorb and fix the adsorbing layer 1 to the wall surface or the like by pressing the adsorbing layer 1 on one surface against the wall surface, a refrigerator door, a table or the like. When an appropriate article is adsorbed and fixed to the adsorbing sheet, the article can be adsorbed and fixed to the adsorbing layer 2 by pressing the article against the adsorbing layer 2 on the other surface.

  Further, when the article that is adsorbed and fixed is peeled off or the adsorbing sheet is peeled off from the wall surface, there is a sheet core 3 between the adsorbing layers 1 and 2 on both sides of the adsorbing sheet. , 2 are joined, it is possible to prevent the adsorbing sheet from being broken by the peeling force.

It is a perspective view which shows the structure of the suction sheet which concerns on this invention. It is an expanded sectional view showing composition of an adsorption sheet concerning the present invention. It is explanatory drawing which shows the use condition of the suction sheet which concerns on this invention. It is explanatory drawing which shows the use condition of the suction sheet which concerns on this invention.

Explanation of symbols

1, 2 Adsorption layer 3 Sheet core

Claims (2)

  An adsorbing sheet comprising adsorbing layers on both sides and a sheet core between the adsorbing layers. The adsorbent sheet according to claim 1, wherein the sheet core is a nonwoven fabric, and the adsorbent layer has an acrylic resin as a main component and has a plurality of microbubbles.

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