JP3417875B2 - Method of manufacturing roll body for adhesive tape cleaner - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for manufacturing a roll of an adhesive tape cleaner having a roll formed by winding a single-sided adhesive tape with its adhesive side facing up. More specifically, the present invention relates to a method for forming a cut portion for cutting the tape substantially every one turn. 2. Description of the Related Art Adhesive tape cleaners are used as cleaning tools for removing dust and lint from carpets, flooring and clothes. As shown in FIG. 4, this type of adhesive tape cleaner is a roll body (winding member) formed by winding a tape 2 having an adhesive layer 3 formed on one surface thereof around a roll core R with the adhesive layer 3 being on the outside. 1). In the roll body 1, a cut portion 4 is formed along the axial direction of the roll core R at a depth from the outermost layer to the roll core R. Usually, the cut portion 4 is formed of a streak-shaped cut cut by a cutter, but a cut is formed only at the end of the roll body 1 or a cut is formed in a perforated shape over the entire width of the roll body 1. There are things. In most cases, the roll body 1 is used by being attached to a support C as illustrated in FIG. The support C has a grip C1 at one end and a rotation support shaft C2 whose other end is bent substantially at right angles to the grip C1.
The roll body 1 is rotatably held on its rotation support shaft C2. [0005] The roll body 1 is rolled on, for example, a carpet via a support C, and the adhesive force of the adhesive layer 3 causes
Remove dust and lint from the carpet surface. Then, when the amount of dust attached increases and the adhesive strength drops, the outermost layer of the tape is peeled off by rewinding, and one roll is cut off from the cut portion 4 to expose a new adhesive layer 3. . However, in the prior art, there is a problem when the used outermost layer tape is cut off from the cutting section 4. That is, when a cut is made only at the end of the roll body 1, the cut is difficult to recognize, and it is difficult to cut the tape in a straight line, and the tape is often torn diagonally. Therefore, a part of the used tape may be left or an unused part of a new tape may be cut off. In addition, the tape located in the lower layer may be turned at once. Moreover,
Since it is necessary to hold the support C with one hand and cut off the tape with the other hand, the tape cutting operation is troublesome. When the cut is perforated, the cut can be easily recognized and the tape can be cut along the cut. However, even in this case, a few tapes are located in the lower layer. It may be turned at once. Further, the troublesome point that both hands are required for the tape cutting operation cannot be solved at all. [0010] In addition, in many cases, perforated cuts are formed in a strip or linear form by driving a cutter into the roll body after winding the tape up to the roll core R in the radial direction. Because it is formed in the shape
Another problem arises as follows. That is, the cuts in the tapes of the respective layers are forcibly pushed open by the thickness of the cutter, and when the cutter is pulled out, the tape is pulled outward by the adhesive force of the adhesive material. As shown in the cross-sectional view, a so-called onion phenomenon in which the cut portion 4 protrudes in a convex shape may occur. Therefore, smooth rotation cannot be obtained due to the convex portion 2a, which not only gives the user a sense of incongruity in use, but also results in poor appearance and impaired commercial value. In addition, the roll body 1 immediately after winding has a portion in which the tension applied at the time of winding is left as a strain stress, and the cut portion opens like a wound due to a reaction when it tries to return. There is also a possibility that it will. As another conventional example, a method has been proposed in which a cutter is provided on the support tool C side to cut the tape in the same manner as a tape dispenser as a stationery, but according to this, a cutter is required. Therefore, an increase in cost is unavoidable, and it is dangerous because the cutter is exposed. [0014] In addition, there has been proposed an arrangement in which the position of the cut is changed for each turn so that the cut is arranged in a stepped manner. According to this, the used outermost layer tape can be reliably peeled off one by one without pulling the lower layer tape, and the cuts do not overlap in position, as described in FIG. There is no possibility that the convex portion 2a may be generated. However, in this case, it is necessary to form the cuts at different intervals before winding the tape, which is not preferable in terms of productivity. That is, complicated control means for appropriately shifting the tape feed amount with respect to the cutter device or appropriately shifting the cutter position with respect to the tape is required, and the cost burden increases accordingly. Accordingly, an object of the present invention is to prevent only the outermost layer of used tape from being obliquely torn, etc.
In addition, it is an object of the present invention to provide a method of manufacturing a roll for an adhesive tape cleaner, which can be easily peeled off by one-handed operation and in which a projection (onion phenomenon) or the like is not generated at a cut portion. Means for Solving the Problems In order to solve the above-mentioned problems, the present invention provides a roll body obtained by winding a tape having an adhesive surface on one side around a roll core with the adhesive surface as a front side. In forming a slit for cutting the tape substantially every one turn, the roll body is left for a predetermined time to relax the strain stress applied at the time of winding,
Irradiating a laser beam from the outermost layer side toward the roll core, leaving a non-cut portion at least at one location on one side of the roll body, forming a slit for cutting having a predetermined opening width. According to this, the so-called onion phenomenon in which the cut forming portion which is a problem in the conventional example rises in a convex shape does not occur. Since the uncut portions are arranged at appropriate intervals on the roll body, the slits are preferably formed in a perforated shape along the axial direction of the roll core. That is, the slit may be divided into a plurality of portions, and a portion between them may be an uncut portion. Next, the present invention will be specifically described with reference to the embodiments shown in FIGS. 1 to 3. FIG. FIG. 1A is a front view of a first embodiment of a roll used for the adhesive tape cleaner of the present invention, and FIG.
Is a sectional view taken along the line A-A. This roll body 1a can be obtained by winding a tape 2 having an adhesive layer 3 on one surface around a roll core R with the adhesive layer 3 on the front side (outside), as in the conventional example described above. According to this embodiment, the non-adhesive portions 5 and 5 having no adhesive layer 3 are formed at both ends of the roll body 1a with a predetermined width. The non-adhesive portion 5 may be provided at only one of the end portions. In an extreme case, the non-adhesive portion 5 may not be provided at any of both ends. It does not depend on the presence or absence of the non-adhesive part 5. In the first embodiment, slits 4 and 4 of the same length having a predetermined opening width are formed on the adhesive surface 3a having the adhesive layer 3 along the axial direction of the roll core R on the same straight line. Two are provided. An uncut portion 4a is provided at the butted portion of the slits 4 and 4. Each slit 4, 4 is formed from the outermost layer to a depth reaching the roll core R, as shown in the cross-sectional view of FIG. According to the present invention, each of the slits 4, 4
Is formed by irradiating the surface of the adhesive surface 3a with a laser beam. Here, the opening width of each of the slits 4 and 4 is arbitrarily set, but when the beam diameter of the laser light is smaller than the opening width of the slit, the laser irradiation may be repeated several times. It is preferable that the slits 4, 4 have the same opening width. FIG. 2 shows a second embodiment of the present invention, and FIG. 3 shows a third embodiment of the present invention. In the present invention, the slit 4 is divided into three or four parts, for example, equally. Of the roll body 1 according to this.
Uncut portions 4a are provided at equal intervals between the non-adhesive portions 5 and 5 at both ends of a. Unlike the above embodiments, in the present invention, the slit 1a is provided on the condition that an uncut portion 4a is provided on a predetermined portion of the roll 1a, preferably on one side of the roll 1a. Reference numeral 4 may be a single continuous shape, and may be formed in a linear shape, a waveform typified by a sine curve, or a spiral pattern on the peripheral surface of the roll body 1a. Further, by providing the non-adhesive portion 5 at the end of the roll body 1a, the end of the used outermost tape 2 can be easily broken.
Is an optional design matter for the present invention. Since the slit 4 is formed by burning off the tape 2 with a laser, the roll body 1a maintains the roll shape without raising the periphery of the slit 4 and without causing the so-called onion phenomenon. Can be used as is. Further, in forming the slit 4, at least one uncut portion 4a is left in the cut portion, so that peeling and opening of the slit due to residual strain stress in the adhesive tape cleaner can be prevented. However, in the present invention, the roll body is left for a predetermined time to relax the residual strain stress in order to more surely prevent the slit from expanding (bulging) due to the strain stress applied to the roll body when the tape is wound. After that, a slit is formed. Next, specific examples of the present invention and comparative examples will be described. In each case, the shaft length is 160 mm,
With a winding diameter of 60 mm and 90 turns of the tape, a width of 5
A roll body having a non-adhesive part of mm was used. Then, the following items were evaluated. Cutability: Whether tearing occurs in an oblique direction when the outermost layer is cut off. Visibility: Is the cut part (cut) easy to understand before and after use? Handling: Is it easy to disconnect with one hand? Shape: Does the cut shape change the roll shape? Example 1 One slit was formed between the adhesive portions along the same straight line. The slit was formed by laser irradiation and had a width of 1 mm and a length of 150 mm. Cutting performance: good. It could be cut neatly along the slit without oblique tearing. Visibility: good. There is no need to look for the slit because it looks like a thick line. Handleability: good. Easy disconnection with one hand. Shape: good. The cut portion does not rise in a convex shape. Comparative Example 1 A cut was made in one non-adhesive portion with a cutter. Cutting performance: poor. Many oblique tears were observed. Visibility: poor. The break is hard to see. In particular, after cleaning, it was covered with dust and the like, and it was difficult to find a cut. Handling: poor. It was necessary to hold down the roll body with one hand and peel off the cut with the other hand, which was troublesome. In addition, there is a high possibility that the lower layer will be broken at the same time. Shape: good. Since the place where the cut is made is the non-adhesive portion, the so-called onion phenomenon does not occur. <Comparative Example 2> A plurality of cuts were perforated by driving a cutter over the entire width of the roll body. The length of each cut was 4 mm, and an uncut portion of 2 mm was left between each cut. The cut was apparently closed and could not be seen as a single line. Cutting performance: slightly good. In most cases, it could be cut along the perforations, but occasionally diagonal tears occurred. Visibility: slightly better. Since there are a number of cuts, it is better than Comparative Example 1, but when a large amount of dust adheres to the adhesive surface, it becomes difficult to see. Handling: poor. It is difficult to cut with only one hand. Further, similarly to Comparative Example 1, there was a great possibility that even the lower layer could be broken at the same time. Shape: poor. Many onion phenomena in which the perforations bulged in a convex shape were observed. Comparative Example 3 A perforated tape was wound around a roll core while changing the pitch so that the perforations did not overlap to form a roll. Cutability: slightly better, as in Comparative Example 2. Visibility: slightly better as in Comparative Example 2. Handling property: same as Comparative Example 2; However, there is no possibility that the lower layer is turned up. Shape: good. Since perforations were provided in advance and the perforations were formed at different positions, there was no occurrence of any onion phenomenon. However, productivity is not good. For reference, the above Example 1 and Comparative Example 1
Table 1 shows the evaluations of Nos. 1 to 3. [Table 1] As can be seen from this, in Example 1, the slits were formed by applying laser processing, as compared with Comparative Examples 1 to 3, and therefore, exceeded the Comparative Examples in all respects. As described above, according to the present invention,
In forming a slit for cutting the tape approximately every one turn in a roll formed by winding a tape having an adhesive surface on one side with the adhesive surface facing the roll core, After leaving for a predetermined time and relaxing the strain stress applied at the time of winding, leaving an uncut portion at least at one place on one side of the roll body, irradiating a laser beam from the outermost layer side to the roll core. By forming a slit for cutting having a predetermined opening width, only the outermost layer tape can be easily peeled off by one-handed operation without oblique tearing and the like. It is possible to provide a roll for an adhesive tape cleaner in which a convex portion or the like does not occur in a portion.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a front view and a cross-sectional view taken along the line AA of a roll body according to a first embodiment of the present invention. FIG. 2 is a front view of a roll body according to a second embodiment of the present invention. FIG. 3 is a front view of a roll body according to a third embodiment of the present invention. FIG. 4 is a perspective view of a conventional roll for an adhesive tape cleaner. FIG. 5 is a front view of an adhesive tape cleaner in which a roll is attached to a support. FIG. 6 is a cross-sectional view of a roll body shown for explaining a problem of a conventional example. [Description of Signs] 1a Roll body 2 Tape 3 Adhesive layer 4 Cutting part 4a Uncut part 5 Non-adhesive layer C Support R Roll core

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-2-71721 (JP, A) JP-A-10-249566 (JP, A) Utility model registration 3046507 (JP, Y2) (58) Fields surveyed ( Int.Cl. ⁷ , DB name) A47L 25/00 C09J 7/02

Claims (1)

(57) [Claims 1] A tape having an adhesive surface on one side is wound around a roll core with the adhesive surface as a front side, and the tape is wound almost every one turn. Pickpocket for cutting
When forming rolls, release the roll body for a predetermined time.
After relieving the strain stress applied during winding,
A cutting slit having a predetermined opening width is formed by irradiating a laser beam from the outermost layer side to the roll core, leaving an uncut portion at least at one place on one side of the roll body. A method for producing a roll for an adhesive tape cleaner.