JP2016155619A - Roll material and method of manufacturing the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent occurrence of a winding difference mark with a conventional core, in respective manufacturing winding steps, for various kinds of roll materials.SOLUTION: In a roll material 3 in which a long sheet is wound on a cylindrical core 2, a viscous fluid resin (viscous fluid) 1 is attached to the core 2, a winding start of the long sheet is fixed, a remaining viscous fluid resin (viscous fluid) 1 is packed even into a gap in the core and the long sheet, and when taken up with no edge of a material end part 3a, a fixing tape step does not appear, with no step mark occurring even winding tightly.SELECTED DRAWING: Figure 1

Description

    The present invention relates to prevention of winding step marks caused by winding around a core 2 during the production of various roll materials 3 or slitting into individual pieces.

    When the various roll materials 3 are wound around the core 2, a method is generally employed in which the tip 3 a of the roll material is fixed with a double-sided tape or a single-sided tape 4 and wound. When wound as it is, a tape mark 4a for fixing and a step mark 3b due to the thickness of various roll materials 3 were generated.

JP2013-199344A ACT 7-006252

      In the patent publication 2013-1993344, the foam 5 is wound around the outer periphery of the core 2 to absorb the winding step trace, and the thickness of the fixing tape 4 and the tip 3a of the roll material 3 are stepped by the foam 5. Although it is an invention to be absorbed, there is a need to change the thickness and hardness of the foam 5 when conditions such as the type, thickness, width, hardness, length, knitted meat, etc. of the roll material 3 change, and adjustment is possible. It is difficult and requires a wide variety of cores 2 and can only be handled with limitations. Further, when the knitted meat is wound hard like a strong material, wrinkles are formed around the foamed material 5, and many rounds are wasted, and it is necessary to prepare the type of the foam 5 for each type of the roll material 3. Even if the tip of the lower surface sinks, there is a gap 6 between the tip 3a of the material 3 and the winding step trace cannot be completely removed.

      Japanese Utility Model Laid-Open No. 7-006252 is a device for reducing the level difference due to the fixed tape. When the fixed tape is thinned, the length of the level difference is reduced, but cannot be completely removed.

      The probability of occurrence in the tape 4 that fixes the roll material 3 and the core 2 is also high, and the tape thickness is reduced to the limit, but cannot be reduced to 0 mm. In the case where the knitted meat is strong, there is a problem that the fixed tape mark 4c enters the dozens of turns by the pressure when wound in a slightly raised state.

      The roll material 3 has a wide variety of materials. Especially, in the case of a thin material, the roll material 3 is soft and easily stretched, and when it is thick, the roll material tip 3a is lifted when the first round (I) is wound. It is a problem.

      Currently, the core 2 with a level difference corresponding to the thickness of the material is used to eliminate the winding step trace. However, the roll material 3 is various, and it is necessary to prepare various types of the core 2 according to the thickness. It is also difficult to manage, and the wave marks remain because it is not wound in a perfect circle.

      Although the roll material 3 and the fixing tape 4 are stopped, and a foam 5 is placed on the roll material 3 and the step 3 between the roll material tip 3a and the portion and the fixing tape 4 is absorbed, the foam 5 may be compressed. The thickness does not become 0 mm, and a minimum thickness is generated, and the foaming step mark 5 c is attached when the thickness rises. Also, if the foam is made thinner, the cells fall off and this is also a very big problem.

      The roll material 3 is not always kept at the same thickness, and knitted meat is generated. When it was wound as it was, there was always a step mark in the strongly wound part. Further, when the slitting is performed, the winding that is strongly wound has a step mark, and the winding that is weakly wound is misaligned, resulting in a problem of increasing defective portions.

      The main cause of the step marks that can be formed when the roll material 3 is wound is that the first step is wound as it is, and is generated many times (step by the fixed tape, the thickness of the material itself).

      The roll material 3 always has a thickness of the material itself. When the roll material 3 is wound, the thick portion is wound hard and the thin portion is wound loosely, so that a winding step mark is easily formed.

      In order to achieve the above object, the present invention uses the viscous fluid curable resin 1 in the triangular gap 6 formed when the roll material 3 and the core 2 of claim 1 are fixed and the first round (A) is wound. Thus, by eliminating the step for fixing and filling the gap 6 so that the material tip 3a of the roll material 3 is flattened and wound, the step does not occur and the cause of the winding step mark can be eliminated.

      When manufacturing various roll materials 3, it can be easily applied at the time of slitting, and the loss due to the winding step can be drastically reduced without taking time. Further, the conventional core can be used as it is, and the management is easy. When the viscous fluid resin (viscous fluid) 1 is cured, the cured resin is easily peeled off, so that the core can be reused. Further, even if the step mark due to the tightening due to the thickness of the roll material generated during the slitter processing is partially wound tightly by eliminating the gap with the fixing tape, no wrinkles due to the tightening are generated. If the core 2 and the tip 3a of the roll material 3 are fixed with the viscous fluid curable resin 1 of claim 1, the fixed tape 4 is also used, so there is no unexpected failure and no delay in delivery, and loss reduction is directly linked to profit. Therefore, this method is the ultimate invention, and a great effect can be obtained.

[BRIEF DESCRIPTION OF THE DRAWINGS] It is a best form side view for implementing this invention. It is a side view currently enforced conventionally. It is explanatory drawing of invention of another company. Explanatory side view assuming the opposite side of another company's invention

Hereinafter, embodiments of the present invention will be described with reference to the drawings.

      FIG. 1 is a side view of a basic embodiment 1 of the present invention, in which the core 2 and the roll material 3 that are used at the time of winding work while being divided into small widths in the winding process or slitter process while producing the roll material 3 are the best. It is a side view of a state. A viscous fluid resin (viscous fluid) 1 is applied to the core 2 of claim 1 (less than the thickness of the semi-circular material, but the amount does not depend on the thickness of various materials), and the tip 3a of the roll material 3 is attached to the core 2 When winding is started from the first round (b) and then the second week (b) is wound, the resin 1 applied to the core 2 is pushed into the gap 6 and the gap 6 is filled. The distance between the tip 3a of the roll material 3 and the second week (b) to be wound next becomes 0 millimeter, and the step due to the thickness of the roll material 3 is eliminated. Even if the second round (b) or the third week (c) is wound, there is no step from the beginning, so no step mark is generated.

      When the viscous fluid resin (viscous fluid) 1 according to claim 2 is a thermosetting resin, after being applied to the core 2 or the tip 3a of the roll material 3 and wound for more than a week, the light source is irradiated and the resin is cured. When wound, the step mark 4c due to the tape 4 and the step mark due to the tip 3a of the roll material 3 are eliminated, and the various cores 2 and the foam material 5 are unnecessary. Since there are no winding steps, no traces of winding steps are generated even if the material itself is thick or thin.

      When the viscous fluid resin (viscous fluid) 1 according to claim 3 is a thermosetting resin, it is effective for materials that do not transmit light (metal, colored sheet roll material, etc.), and fixing steps and filling the gaps It can be eliminated, and even if it is wound up, it will not cause step marks. In addition, when the second week (b) is wound, regardless of the liquid, solid, such as acrylic, urethane, rubber, silicone, etc., which are cured by standing as described in claim 4, the core 2 is fixed 4 As long as it has an effect of filling the gap 6.

      Example 2 is a manufacturing method in which the viscous fluid resin (viscous fluid) 1 of the present invention is wound up after filling, but when the viscous fluid curable resin 1 is applied to the core 2 or the roll material 3 and wound, the thickness of the fixing tape is increased. The manufacturing method according to claim 3, wherein the thickness of the tape is 4 microns or less, the tape has no step, the tip of the material is flattened and no step is generated. The curing method is not limited to the photocuring according to the fourth aspect, the thermal curing according to the fifth aspect, and the natural curing, and a viscous fluid material in which the fixing and the gap 6 are filled may be selected.

      FIG. 2 is a drawing that is generally constructed in the past. However, the thickness of the fixing tape 4 always swells, and when the first round (A), the second round (B), and the third round (C) are wound sequentially, the next is the next. A swelling step is generated. Further, the bulge caused by the roll material tip 3 a is attached as in the fixing tape 4. As a major factor, the gap 6 exists between the core 2 and the roll material 3, and the largest cause is that the edge of the roll material tip 3a is sequentially wound while being in contact with the material to be wound next.

      3 is an explanatory side view of the invention of another company, but only the lower end of the fixing tape 4 and the roll material 3 is absorbed by the foam 5, but the upper end is not absorbed and the first round (I) is wound. The gap 6 is slightly generated and cannot be completely removed. In particular, in the case of a material with knitted meat, if it is wound tightly, wrinkles due to zakutsu are likely to occur and cannot be absorbed, and it is a mitigation measure and not a fundamental measure.

      4 is an explanatory side view supposed to eliminate the invention of other companies, but after the roll material 3 is fixed to the core 2 using the fixing tape 4, the foam 5 is formed on the tip 3a of the material 3 and the fixing tape 4. When the material is wound, the stepped trace 3a of the fixing tape 4 and the roll material 3 can be absorbed by the foam 5. However, if the foam 5 is too thin, the effect is lost, so 0.5 mm or more is necessary. Even if 0.5 mm is compressed, a step of 0.07 mm or more expands on both sides with respect to the width direction of the foam 5, so that a foam step mark 5 c is generated and enters in a wave state. Although it is impossible to eliminate this method, it can be said to be a mitigation method. However, by using the foam 5, the cell falls off and the dents due to the cell are easily generated. It will increase.

      When various roll materials are wound around the core 2, step marks generated in the core portion can be easily suppressed, so that material loss due to defects and prescales for suppressing defects can be reduced.

1. Viscous fluid resin (viscous fluid)
2, core 3, roll material 4, fixing tape 5, foam 6, gap 3a material tip 3b material tip step mark 4c fixing tape step mark 5c foam step mark
B. Material first round B, Material second round C, Material third round

Claims (5)

    A roll material 3 in which a long sheet is wound around a cylindrical core, wherein the winding start end of the long sheet is filled with a viscous fluid resin (viscous fluid) 1, and the winding start end, the core, and the winding A roll material, wherein a gap between the taken sheet material is filled.     2. The roll material according to claim 1, wherein the resin of the viscous fluid resin (viscous fluid) 1 is a photocurable resin mainly composed of any one of urethane acrylate, acrylic resin acrylate, and epoxy acrylate.     Viscous fluid resin (viscous fluid) 1 is a thermosetting type resin whose main component is any one of phenol resin, epoxy resin, melamine resin, urea resin, unsaturated polyester resin, alkyd resin, polyurethane resin, and thermosetting polyimide. It is resin, The roll material of Claim 1 characterized by the above-mentioned.     The roll material according to claim 1, wherein the viscous fluid 1 is natural rubber, agar, gelatin or the like. After fixing the edge part of a long sheet to the core 2, the edge part of the said long sheet, and the end surface of the said long sheet, and the said core are touched in the edge part of the said long sheet. 4. A method for producing a roll material, comprising filling one of the viscous fluid resins (viscous fluid) 1 and starting the winding after curing by applying curing light or applying heat.

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