JPS58196974A - Method of manufacturing filing strips lined by separating paper - Google Patents

Abstract

PURPOSE:In a process for manufacturing filing strips coated with an adhesive material, to eliminate the possibility of abrasive grains falling off in the manufacture of the filing strips by covering the adhesive material with a masking member leaving portions on which the abrasive grains are spread and by peeling off the masking member after the layer of the abrasive grains has been formed. CONSTITUTION:An adhesive 7 is applied on one side of the surface of a mold releasing paper 2 by an adhesive supplying device A. An endless masking member 3 coated over both the surface thereof with Teflon, provided with openings 5 at positions corresponding to positions for forming filing strips 4 and adapted to be driven by rollers 6 is disposed practically in contact with the mold releasing paper 2 coated with the adhesive 7 over the surface thereof and is moved at the same speed as a belt conveyor 1. An adhesive supplying device disposed within the loop of the masking member 3 applies an adhesive 8 over the surface of the adhesive 7 except where the masking member 3 is masking. An abrasive grain supplying device C spreads abrasive grains 9 over the surface of the adhesive 8 so that the abrasive grains 9 are fixed over the layer of the adhesive 7. Then, the masking member 3 is removed from the mold releasing paper 2. Thus the layers of the adhesive 8 having the abrasive grains 9 fixed to the layers of the adhesive 7 are formed at a fixed interval.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention is made by cutting the product into a predetermined size and shape in advance and disposing it on a release paper so that it can be peeled off before use and attached to the desired part of the desired article. This invention relates to a method for producing a sheet-like file with an adhesive.

Generally, when applying a sanding surface to any part of any article, adhesive is applied onto a base material such as paper, cloth, or cloth paper composite, and then a sheet-shaped file with abrasive particles attached is applied to the base material, such as paper, cloth, or paper composite. There is a method of cutting it and applying adhesive to the back side.

Furthermore, for convenience, there is also used a sheet-shaped file with an adhesive attached to a release paper, cut in advance to a predetermined size. However, there are the following problems in continuously attaching a large number of sheet-shaped file bars to a large number of articles, and this has not yet been implemented.

In general, labeling machines are widely used for continuously pasting sheets. This is done by winding a ribbon-like release tube with an adhesive label pasted onto it into a roll, and unwinding it from one end, one by one, close to the object being pasted on a belt conveyor. It is peeled off and pasted. In order to apply this method, it is first necessary to attach a large number of sheet-shaped sanding pieces of a predetermined size to a release paper and arrange them. For regular labels, a continuous printed sheet of the label is pasted onto release paper, then the label is punched out into a predetermined shape using a knife, and the rest of the label is peeled off from the release paper. There is.

However, when this method is applied to sheet-shaped files, the abrasive grains applied to the surface cause the cutting edge to wear out, making it difficult to cut a large number of sheet-shaped files. In addition, the abrasive grains that come into contact with the cutting blade are crushed, and the bond with the glue or adhesive becomes loose and wobbly, and these fragments of abrasive grains or loose abrasive grains can fall off with slight stimulation, reducing the product value. was there. Therefore, currently, when cutting a sheet-shaped file, only the base material is cut from the back side. Since the abrasive grains on the surface of the sea 1-shaped file are adhered to the base material independently of each other, when the base material is cut, the entire base material is also cut, and wear of the cutting edge can be prevented. However, when applying the sheet-shaped sanding piece continuously, the release paper must not be cut, so it is essentially impossible to cut the sheet-shaped sanding piece from the back side.

The present invention solves the above-mentioned problems when attaching a sheet-shaped sanding strip to an object to be attached such as a paper box at high speed using a labeling machine.
In one of the processes in which materials such as adhesive and abrasive grains are laminated one after another to produce adhesive-backed sheet files, the parts to which the abrasive grains should be attached are covered with a masking material, and finally the abrasive grains are After applying a layer, the masking material is peeled off, and if the masking material is directly covered on the release paper and then an adhesive or other material is laminated, 1 is sufficient, but in other cases, This is a method in which the sheet-shaped file is cut with a knife to match the shape of the sheet-shaped file, leaving the release paper behind, and the part of the sheet-type file that is not included is peeled off from the release paper. According to the present invention, since the abrasive grain layer is applied in a predetermined shape in advance, the blade does not come into contact with the abrasive grains during cutting, and sheet-like files with release paper are produced without the abrasive grains wobbling or breaking at the edges. can do.

In the present invention, the adhesive is a soft adhesive material that is sticky when removed from the release paper and can be directly attached to the object, while the adhesive is a material in which abrasive grains are fixed and arranged in a sheet shape. It is an adhesive material that hardens sufficiently after drying or reaction and is no longer sticky. therefore,
Even without using a base material made of a sheet such as paper, cloth, or plastic, the hardness of the adhesive after drying allows it to be directly attached to an object using a known labeling machine.

Abrasive grains include well-known abrasive grains such as alundum and colander, as well as crushed pieces of glass, metal, shellfish, etc. that do not belong to the category of abrasive grains.

Well, masking material is a material that can prevent abrasive grains from adhering to certain areas when creating an abrasive layer, and is also easy to peel off afterwards. Like release paper, it is a material that can be used to at least cover the surface of the layer. It is preferable to use a silicone release agent.

Hereinafter, the present invention will be described in detail by way of examples with reference to the drawings.

FIG. 1 is a schematic diagram showing an example of a case in which the present invention is carried out. 1 is an endless belt conveyor, which rotates in the direction of the arrow in the figure. Reference numeral 2 denotes a release paper sent by a belt conveyor 1, and first, an adhesive 7 is supplied to one side from an adhesive supply device A. 3 is a masking phase coated with Teflon on both sides, holes 5 are drilled in the areas where the sheet-like sanding pieces 4 are to be provided, and the masking layer 3 is also endless and is driven by a roller 6 and coated with an adhesive 7. It almost contacts the release paper 2 and moves at the same speed as the belt conveyor 1. B is an adhesive supply device provided in the ring of the masking material 6, which supplies the adhesive 8 to the adhesive 7-A.
However, the portion covered with the masking material 6 is not coated. C is an abrasive grain supply device that adhesively fixes abrasive grains 9 onto adhesive 8. Next, the masking layer 3 is separated from the adhesive layer, and on the adhesive layer Z, 80 layers of adhesive having abrasive grains 9 attached to the upper surface are arranged at regular intervals. Reference numeral 10 denotes a cutting blade which descends in the direction of the arrow and cuts the periphery of the abrasive grain layer as close as possible to the boundary line 11 between the release paper 2 and the adhesive layer 7 and within a range that does not contact the abrasive grains 9. Then, by peeling only the layer of adhesive 7, a sheet-like file with release paper is obtained, which can be rolled up and applied to an object at high speed using a labeling machine.

FIG. 2 is a sectional view showing a state before cutting when a kneaded material 12 in which abrasive grains are kneaded into an adhesive is applied directly to the adhesive layer. In this case, instead of the adhesive supply device β and the abrasive grain supply device C, one kneaded material supply device is sufficient. In addition, the cutting blade 10
is cut at the boundary line 11 between the release paper 2 and the adhesive 7.

In addition, as shown in FIG. 3, a layer of adhesive 7 is provided on release paper 2, a layer of adhesive 8 is provided on top of that, and then a layer of abrasive grains is applied at regular intervals after being covered with masking material 6. It can also be kept and placed. A base material 16 such as paper is laminated on top of the adhesive, and then it is covered with a masking layer 6 and an adhesive 8 and abrasive grains 9 are applied, and when the masking material is peeled off, the result is as shown in FIG.

In this case, if you cut well outside the boundary line 11, the knife will not touch the abrasive grains, so there is no risk of damage to the knife or wobbling of the abrasive. This is a preferable method when the edge lines do not need to match. Even if it is necessary to match the edge lines, if the object to be attached is a paper box, you can fold it after attaching the file strip. Base material 1
3 is also bent at the same time, and the edge line of the abrasive grain layer substantially coincides with the ridge line.

In addition, if the masking material 6 is directly placed on the release paper 2 and the subsequent steps are performed as shown in FIG. 5, there is no need to cut the masking material 3 after removing it. FIG. 2 is a schematic diagram showing a sheet-like file piece attached to an object using a labeling machine using a sheet-like file jl with release paper according to the invention.

Reference numeral 14 denotes an object to be adhered, which is conveyed at a constant speed by a belt conveyor. Reference numeral 15 is a sheet-like file with release paper attached to the heron seal, which is wound into a roll, unwound from the end, passes through various rollers, and reaches the presser roller 16. 17 is a release plate, the tip of this release plate approaches the object to be adhered;
At this point, since the mold release/-1-shaped file piece 15 is reversed at a steep angle, the /-T-shaped file piece 4 is separated from the release paper 2 and is pressed onto the object 14 by the presser roller 16.

The release paper 2 separated from the sheet-like sanding piece 4 is placed on a winding roll 1
It is wound up at 8.

As described above, according to the present invention, it is possible to easily produce a sheet-like file with release paper that does not cause the abrasive grains at the edges to fall off, and it is possible to easily attach note-like file pieces using a labeling machine at high speed. Became.

[Brief explanation of the drawing]

The drawings show embodiments of the present invention, with Fig. 1 being a schematic diagram showing one step of the invention, Figs. 2 to 5 being cross-sectional views showing the state after the masking material has been removed, and Fig. 6 showing the labeling. FIG. 2 is a schematic diagram of the machine. In the drawing, 1 is a belt conveyor, 2 is a release paper, 3 is a masking material,
4 is a sheet-shaped file, 5C1 hole, 7 is an adhesive, 8 is an adhesive, 9 is an abrasive grain, 10 is a cutting blade, 11 is a boundary line, 12 is a kneaded material, 16 is a base material, 14 is an object to be adhered , 15 is a notebook-shaped file J′l with release paper, 16 is a press roller, 17 is a peeling plate, 18 is a take-up roll, A is an adhesive supply device, B is an adhesive supply device-1゛, C is an abrasive grain It is a supply device. Patent Applicant Asahi Dow Co., Ltd. Agent Attorney Sadako Suzuki 4

Claims (1)

[Claims] When arranging sheet-like sanding pieces with an adhesive layer on release paper and an abrasive layer provided via adhesive, any step from the process of applying the adhesive layer to the process of providing the abrasive layer is performed. During the process, leave the area where the note-shaped file should be placed and cover it with masking material, and then remove the rest of the process.
, rr process, and after forming an abrasive grain layer, the masking material is peeled off.