Cleaning adhesive rolls and cleaning rollers

Abstract

To provide practical and effective means, when giving antibacterial properties to an adhesive roll for cleaning and a cleaning roller using the adhesive roll.SOLUTION: An adhesive roll includes a rolled belt-shaped base material sheet 14 and an adhesive body 23 arranged on its surface side. The base material sheet 14 includes an antibacterial agent layer 22 having, on its surface, antibacterial function by an antibacterial substance given thereto. The base material sheet 14 includes an adhesive part 17 where the adhesive body 23 is arranged, and a non-adhesive part 18 where the adhesive body 23 is not arranged, and the antibacterial agent layer 22 is exposed on the non-adhesive part 18.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The present invention relates to an adhesive roll for cleaning and a cleaning roller. [Background technology]

[0002] Conventionally, adhesive rolls for cleaning and cleaning rollers using the same have been proposed as shown in Patent Documents 1 to 3. However, currently, no adhesive rolls with enhanced antibacterial properties have been commercialized on the market.

[0003] In developing an adhesive roll and cleaning roller for cleaning, the present inventors conducted research and found that the adhesive rolls shown in Patent Documents 1 to 3 all contain an antibacterial agent in the adhesive body, and have the following problems:

[0004] 1. Adding an antibacterial agent to the adhesive affects its adhesive performance, making it difficult to control the adhesive performance that is the original function of the adhesive roll.

[0005] 2. Most adhesives used in adhesive bodies are thermoplastic resins, usually called hot melts, which must be heated before being applied to the substrate. However, organic antibacterial agents may react with the hot melt, preventing them from achieving the desired antibacterial effect.

[0006] 3. When inorganic antibacterial agents are used, the viscosity decreases when heated in the hot melt, and there is a risk that the antibacterial agent will settle in a tank equipped with a heating mechanism called an applicator due to differences in specific gravity, which may prevent the agent from exerting uniform antibacterial properties. [Prior art documents] [Patent documents]

[0007] [Patent Document 1] Japanese Patent Application Publication No. 08-024206 [Patent Document 2] Japanese Patent Application Laid-Open No. 2002-085323 [Patent Document 3] Japanese Patent Application Laid-Open No. 2016-116795 Summary of the Invention [Problem to be solved by the invention]

[0008] The problem to be solved by the present invention is to provide a practical and effective means for imparting antibacterial properties to adhesive cleaning rolls and cleaning rollers. [Means for solving the problem]

[0009] The present invention provides an adhesive cleaning roll that can be rolled on a surface to be cleaned, and that includes the following means. The adhesive roll according to the present invention includes a wound strip-shaped base sheet and an adhesive body disposed on the surface side of the base sheet.

[0010] The base sheet has an antibacterial portion on at least a portion of its surface that has been given antibacterial function by an antibacterial substance. The base sheet has an adhesive portion where the adhesive body is arranged and a non-adhesive portion where the adhesive body is not arranged, and the antibacterial portion is exposed in at least a portion of the non-adhesive portion. In carrying out the present invention, it is desirable that the antibacterial portion has an antibacterial function with an antibacterial activity value of 2 or more. In carrying out the present invention, the coating weight of the solution containing the antibacterial substance is 10 g / m 2 It is preferable that the thickness is not more than 100 μm in terms of having little effect on the substrate.

[0011] Furthermore, when implementing the present invention, it is desirable that the base sheet has dry edges, which are the non-adhesive portions, on both ends, and that the antibacterial portion is exposed on at least a portion of the dry edges. In general, in adhesive cleaning rolls, to expose a new cleaning surface, the strip-shaped base sheet has easy-to-tear portions, such as perforations, provided at predetermined intervals along the length, and the user tears the base sheet from these easy-to-tear portions to expose a new surface. To do so, the user pinches the dry edges and tears off the base sheet. Therefore, imparting antibacterial properties to the dry edges is the most practical and effective method.

[0012] Furthermore, the present invention provides a cleaning roller that uses the above-mentioned adhesive roll in a cleaning roller that cleans by rolling an adhesive roll over a surface to be cleaned. [Effects of the Invention]

[0013] The present invention provides an adhesive cleaning roll having an effective antibacterial function. The present invention also provides a cleaning roller for cleaning that has an effective antibacterial function. [Brief explanation of the drawings]

[0014] [Figure 1] 1A is a front view of a cleaning roller according to an embodiment of the present invention, and FIG. 1B is a front view of a cleaning roller according to another embodiment of the present invention. [Figure 2] FIG. 2 is an explanatory diagram of a layer structure of the adhesive roll according to the embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0015] Hereinafter, an embodiment of the present invention will be described with reference to the drawings. (Cleaning Roller Overview) The cleaning roller 10 according to this embodiment has an adhesive roll 11 rotatably supported by a support part 12, which rolls over the surface to be cleaned, thereby adhering and removing dust and dirt from a cleaning area 15. In the example of FIG. 1(A), the adhesive roll 11 is shown attached to a cover 13 having support parts 12 that support both ends of the adhesive roll 11, but as in the example of FIG. 1(B), it may be supported in a cantilevered manner or attached to the tip of a long handle 19. The adhesive roll 11 is detachable from the support part 12, and is also sold as a replacement part.

[0016] (Summary of adhesive sheet) The adhesive roll 11 is made by rolling up a strip-shaped adhesive sheet 14 and has a central cleaning area 15 and dry edges 16 provided along both end edges. Adhesive bodies 23 are arranged on the surface of the cleaning area 15, and dust and debris are attached to these adhesive bodies 23 and removed. When the amount of attached dust and debris increases and further cleaning becomes difficult, the tip end portion is torn off from perforations or other cutting lines provided approximately every other circumference, exposing new adhesive bodies 23 and allowing cleaning to be performed. In this case, by picking and cutting off the dry edges 16 that do not have adhesive bodies 23, the work can be performed cleanly without getting hands dirty or sticky.

[0017] The central cleaning area 15 may be entirely covered with adhesive portions 17 with exposed adhesive bodies 23, but in this example, adhesive portions 17 and non-adhesive portions 18 without adhesive bodies 23 are arranged in alternating stripes. In the example of Figure 1, the stripes extend in the longitudinal direction of the adhesive sheet 14, but the direction of extension can be changed as appropriate, and the stripes can also be changed to a form other than stripes.

[0018] By mixing adhesive portions 17 and non-adhesive portions 18 in cleaning area 15 in this way, it is possible to suppress a decrease in cleaning effect while preventing adhesive sheet 14 from adhering to a flat surface to be cleaned, such as flooring, and peeling off from adhesive roll 11. Furthermore, to prevent adhesive sheet 14 from adhering to a flat surface to be cleaned, such as flooring, a second adhesive portion with weakened or no adhesive strength can be placed on adhesive sheet 14.

[0019] (Layer structure of adhesive sheet) 2, adhesive sheet 14 has antibacterial agent layer 22 as an antibacterial portion laminated over the entire surface of base sheet 21 made of paper, synthetic resin, or the like, and adhesive bodies 23 made of synthetic rubber, acrylic hot-melt thermoplastic resin, or the like, partially disposed on the surface. The portions where adhesive bodies 23 are disposed are adhesive portions 17, and the portions where adhesive bodies 23 are not disposed are non-adhesive portions 18, and in non-adhesive portions 18, antibacterial agent layer 22 is exposed on the surface.

[0020] A sealing layer 24 made of a synthetic resin such as PE (polyethylene) or PVA (polyvinyl alcohol) is laminated over the entire back surface of the base sheet 21, and a silicone or non-silicone release layer 25 is further laminated on the back surface of the sealing layer 24. This release layer 25 prevents adhesion to the inner peripheral adhesive body 23 when the adhesive sheet 14 is wound into a roll. These layers are sequentially applied to the base sheet 21 and laminated.

[0021] (Regarding the antibacterial agent layer 22) The antibacterial agent layer 22 contains an antibacterial component such as an organic component (paraben, benzalkonium chloride, or CPC (cetylpyridinium chloride)) or an inorganic component (silver ion, copper ion). It may also contain an antibacterial component derived from a natural component such as hinokitiol, or multiple types of antibacterial components may be used in combination. These antibacterial components may be supported on a carrier such as zeolite, or may be fixed using a binder such as a synthetic resin or silicone, as needed. In either case, it is desirable for the antibacterial layer 22 to have an antibacterial activity value of 2 or higher according to the antibacterial testing method specified in JIS Z 2801.

[0022] This antibacterial agent layer 22 is laminated to the base sheet 21 in a separate process from the adhesive body 23, and is not mixed with the antibacterial agent layer 22 as shown in conventional patent documents. The adhesive body 23 simply adheres to the antibacterial agent layer 22, so there is no adverse effect on the adhesive performance, which is the original function of the adhesive body 23.

[0023] Furthermore, even when an organic antibacterial component is used in antibacterial agent layer 22 and a thermoplastic resin called hot melt is used in adhesive body 23, the antibacterial component is not directly heated during application, so that deterioration of antibacterial performance can be suppressed. Even when an inorganic antibacterial component is used in antibacterial agent layer 22, it can be prepared separately from the thermoplastic resin such as hot melt without being mixed, so that the antibacterial component does not precipitate in the preparation tank, and uniform antibacterial properties can be exhibited.

[0024] The coating weight of the solution containing the antibacterial substance of this antibacterial agent layer 22 is 0.1 g / m, depending on the type and content of the antibacterial component. 2 More preferably, 1 g / m 2 However, as long as the antibacterial activity value is 2 or more, it can be suitably used regardless of the coating amount.

[0025] On the other hand, the inventors have found through their research that the coating weight of the antibacterial agent layer 22 is related to adhesive performance. That is, although the mechanism is not entirely clear, the inventors have found that if the coating weight of the antibacterial agent layer 22 is too high, the adhesion between the base sheet 21 and the adhesive body 23 decreases. 2 Less than 5g / m, more preferably 2 It is preferable that: Therefore, the coating amount of the antibacterial agent layer 22 is 10 g / m 2 on the condition that the antibacterial agent layer 22 exhibits an antibacterial function with an antibacterial activity value of 2 or more. 2 Less than 5g / m, more preferably 2 It is preferable that:

[0026] In addition, the cleaning area 15 may be entirely covered with adhesive portions 17 coated with adhesive substance 23, but when adhesive portions 17 and non-adhesive portions 18 are mixed, it is preferable to set the spacing between adjacent adhesive portions 17 to 0.5 to 1.5 mm from the viewpoint of adhesion and antibacterial function. For the same reason, it is also preferable that the width of adhesive portions 17 be 1.5 to 3.5 mm.

[0027] (Antibacterial properties where needed) In the cleaning roller 10 of the present invention, it is desirable to impart the above-mentioned antibacterial function to the surfaces of each of the component parts. It is desirable to provide antibacterial properties to the surfaces of the adhesive roll 11 that may be touched by the user, such as the inner peripheral surface (not shown) of the core around which the adhesive sheet 14 is wound.

[0028] As for the adhesive sheet 14, the adhesive portion 17 covered with the adhesive body 23 cannot exhibit the antibacterial function, but the non-adhesive portion 18 not covered with the adhesive body 23 exhibits the antibacterial function because the antibacterial agent layer 22 is exposed. During cleaning, the user generally performs the cleaning work by holding the handle or the like of the cleaning roller 10 without touching the cleaning area 15 including the adhesive portion 17.

[0029] Furthermore, when tearing off an old adhesive sheet 14 to expose a new one, the dry edge 16 of the adhesive sheet 14 is grasped and cut off, as described in detail in the applicant's Patent Publication No. 6153809. This dry edge 16 is the non-adhesive portion 18, so the antibacterial agent layer 22 is exposed. Therefore, even if the adhesive roll 11 rolls over a surface to be cleaned that is contaminated with bacteria, the antibacterial function of the dry edge 16 keeps the surface clean. As a result, even when tearing off an old adhesive sheet 14, the user is prevented from coming into contact with bacteria.

[0030] During this cutting operation, the user's fingertips also come into contact with the release layer 25 on the back side of the adhesive sheet 14, but since the release layer 25 is in contact with the antibacterial agent layer 22 of the adhesive sheet 14 on the inner side until just before the cutting operation, it is kept clean and the user is prevented from coming into contact with bacteria, etc.

[0031] The dry edge 16 formed by the non-adhesive portion 18 is preferably 5 mm or wider to facilitate the cutting operation. However, since increasing the width of the dry edge 16 reduces the area of ​​the cleaning region 15 more than necessary, it is preferable to make it 15 mm or less.

[0032] From the viewpoint of productivity, it is preferable to provide the antibacterial agent layer 22 on the entire surface of the base sheet 21. However, it is also possible to provide the antibacterial agent layer 22 only in the non-adhesive portion 18, or further to provide the antibacterial agent layer 22 by coating only in the dry edge 16. Even when the antibacterial agent layer 22 is provided in a limited area in this manner, it is of course also possible for the adhesive portion 17 and the antibacterial agent layer 22 to be coated so as to partially overlap each other. [Example]

[0033] Examples are given below to enhance understanding of the present invention, but the present invention should not be understood as being limited to these examples.

[0034] (Confirmation of antibacterial function) As shown in Table 1 at the end of this article, four types of samples 1 to 4 were prepared and tested (using Staphylococcus aureus) in accordance with JIS Z 2801:2012. Samples 1 to 3 were laminated by coating an antibacterial agent layer 22 containing CPC (cetylpyridinium chloride) as an antibacterial component onto the entire surface of a paper substrate sheet 21. Sample 1 had a coating amount of the antibacterial agent layer 22 of 27.6 g / m 2 , and sample 2 has the same coating amount of 18.4 g / m 2 , and sample 3 has the same coating amount of 4.6 g / m 2 Sample 4 was a paper substrate sheet 21 only, without the antibacterial agent layer 22 applied thereto. As a result, all of Samples 1 to 3 showed good results with an antibacterial activity value of 2 or more, while Sample 4 showed an antibacterial activity value of less than 1.

[0035] Next, for Samples 1 to 4, adhesive sheets 14 as shown in Figs. 1 and 2 were prepared, and the adhesion between the base sheet and the adhesive body was evaluated. The coating conditions for the adhesive body 23 were all the same. Specifically, the adhesive body 23 was produced under the following conditions. Average coating thickness of adhesive 23: approx. 5 μm Cleaning area 15 width: approx. 146 mm Dry Edge 16 width: approx. 7 mm Width of adhesive part 17: approx. 2 mm Width of the non-adhesive portion 18 in the cleaning area 15: approximately 1 mm

[0036] (Testing adhesive peelability) The test was carried out by preparing 25 mm wide test pieces from the adhesive tape, attaching the test pieces to a smooth stainless steel plate, and then applying a uniform load of 2 kg to the bottom of a pressure roller by moving it back and forth 10 times to adhere the test pieces.The test piece was then peeled off by hand from the edge of the test piece, and the peeling of the adhesive was visually observed and evaluated as shown in the rightmost column of Table 1. ◯: No peeling occurred between the base sheet and the adhesive body. ×: Peeling occurred between the base sheet and the adhesive body, and the adhesive body was attracted to the stainless steel plate.

[0037] [Table 1] [Explanation of symbols]

[0038] 10 Cleaning roller 11 adhesive roll 12 Support part 13 Cover 14 Adhesive sheet 15 Cleaning area 16 Dry Edge 17 Adhesive part 18 Non-adhesive part 19 Handle 21 Base sheet 22 Antibacterial layer 23 Sticky substance 24 Filling layer 25 Peeling layer

Claims

1. In an adhesive cleaning roll that can be rolled on a surface to be cleaned, The adhesive roll includes a rolled-up base sheet in a strip shape and an adhesive body disposed on a surface side of the base sheet, the base sheet has an antibacterial portion on at least a part of its surface to which an antibacterial function is imparted by an antibacterial substance, the base sheet has an adhesive portion where the adhesive body is arranged and a non-adhesive portion where the adhesive body is not arranged, The antibacterial portion is exposed in the non-adhesive portion, The antibacterial portion comprises an antibacterial layer, the antibacterial layer and the adhesive body are not mixed, and the adhesive body is attached on top of the antibacterial layer.

2. The adhesive cleaning roll described in Claim 1, characterized in that the antibacterial portion contains an organic or inorganic antibacterial component and has an antibacterial function with an antibacterial activity value of 2 or more.

3. The antibacterial portion contains at least one antibacterial component selected from the group consisting of paraben, benzalkonium chloride, CPC (cetylpyridinium chloride), silver ions, and copper ions, and the coating weight of the solution containing the antibacterial substance is 1 g / m 2 or more and 5 g / m 2 or less, 3. The adhesive roll for cleaning according to claim 2, wherein the antibacterial function is also imparted to an inner peripheral surface of a core around which the base sheet is wound.

4. the base sheet has dry edges along both end edges, which are the non-adhesive portions, and a cleaning area disposed between the dry edges, and the cleaning area has the adhesive portion and the non-adhesive portion, or only the adhesive portion; 4. The adhesive cleaning roll according to claim 1, wherein the antibacterial portion is exposed on the dry edge.

5. A cleaning roller that cleans a surface to be cleaned by rolling an adhesive roll over the surface, wherein the adhesive roll is the cleaning adhesive roll according to any one of claims 1 to 4.

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