TW592943B - A paper pipe of use as a supporting core to be roller with film or sheet - Google Patents

Abstract

The present invention provides a paper pipe, which is used as a supporting core to be rolled with film or sheet, wherein said paper pipe can be easily shortened when it is dumped and said paper pipe makes no trouble when it is rolled with film or sheet. The present invention features a paper pipe of from 35 to 42 mm in outside diameter and from 1 to 1.5 mm in thickness, having from 2 to 6 cutting parts on at least one circumference of said paper pipe, wherein width of each cutting part is from 0.1 to 1 mm, parts remaining uncut, between said cutting parts neighboring each other, continue from outside surface to inside surface of said paper pipe and the length of said parts remaining uncut in the direction of the circumference is from 1.5 to 4 mm.

Description

592943 V. Description of the invention (l) [Detailed description of the invention] [Technical field to which the invention belongs] The present invention is about bismuth used for food packaging and other thin months. The bismuth is used for dagger watches / special films, I Lu Flakes, its%. The paper officer of the center of the moon is in the diaphragm or a thin and shortened paper tube. After consumption, each can be cut easily [Known technique] Transparent food packaging film, ginger glutinous film, or paper tube used by the kitchen as a roll. Shimaki / Second is a so-called spiral paper tube used to wind an elongated sheet of paper into a spiral shape with an adhesive. The core paper tube must have a certain strength or more in the step of winding a film or a cymbal, so it is strong. It is not easy to destroy it when it is destroyed. Since the winding core of a film or sheet with a small winding width is also short, there is no problem when the film or sheet is destroyed as it is after the paper tube is consumed, but a paper with a winding width of 25 to 30 cm or more The core of the tube also becomes longer. When the paper tube is to be destroyed as it is, the problem is that the lid of the trash can cannot be closed due to its large volume. In the present patent, the patent No. 3-48 1 3 7 or the patent No. 290 54 67 is proposed to have a core paper tube with a notch portion that is bent and broken. The paper tube which can be easily broken after winding is provided with a circumferential groove portion at least in one place of the cylindrical body, and a deep notch portion is further provided in one of the groove portions. Japanese Patent No. 2905467 is a paper sheet wrapped around a plastic greenhouse

592943 V. Description of the invention (2) Tube, which provides, in a plurality of parts of a long paper tube, a plastic sheet, and cutting the paper tube can separate each roll of paper tube :. ： Invention: Make the paper officer intermittently apply the notch part that penetrates the inside and outside of the paper tube, and the connecting part between the adjacent notch and the notch is more than the outer periphery of the paper tube. The outer layer is the fracture in the paper tube The reservation department was broken in the whole week's #foot recess A & 丨 in Wang Zhou, which is so special. In any of these conventional examples, the same product is made by breaking a paper tube, and the fracture surface of the paper tube becomes a mouthpiece. Our | ® battle for the side of the σ mouth. Therefore, Japanese Patent No. 2 0 5467 considers its appearance, and its problem is to prevent the chip from peeling off and prevent burrs from occurring. Surface layer [Problem to be solved by the invention] The present invention is to provide simple bending when destroying by hand, and can be folded when tapping on a desk or table. It can be shortened easily without becoming a large volume. 4 Xiao destroy = paper tube. The inventors reviewed that after the film or sheet is used up, the paper tube can be easily broken and a notch is provided along the circumference of the paper tube. The notch is provided so that the film or sheet becomes the lower part when the film or sheet is wound. As in the above-mentioned conventional example ', since the fracture portion is not on the side of the product, although the external appearance does not need to be considered, when the film or sheet is wound on the upper part, it must be prevented from being troubled. According to the research by the present inventor, in the Japanese Patent Shikaikai 3-481 37, the grooves in the shape of a circle or the Japanese Patent No. 29 0 54 6 7 are more concave than the outer peripheral surface of the paper officer. The structure of the outer peripheral layer of the paper tube is broken all over the predetermined portion of the paper tube. When the film or sheet is wound on the upper part of the paper tube, the width of the film or sheet may fall into a width of 冓 邛 or concave. So unwell I!

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ο At the same time, the problem of the IM i invention is to provide a tube that can be easily broken and shortened. The completed paper is constructed so that no troubles occur when the film or sheet is broken. Question 1 'The inventor is at the location of the intended break paper tube', /, in the wrong place = the paper tube holding the film or sheet There are also connection costs on the outer surface. During the construction, review the appropriate number of slots or the length of the slots to achieve the [solution to the problem] The tube m is about a paper pattern with a thickness of 1 to 15 along the outer diameter of 35 to 42 mm, There are 2 or more and 6 or less missing parts on the circumference, which are different from the direction of the connection between the adjacent notch and the notch on the paper tube surface! C The peripheral surface is connected to the inner peripheral surface, and the connection is The circumference of the part is too private day 2 ^ ί + ^ ~ &4; 4, so it is characterized by a paper tube with a core. It is easy to break, and it becomes a circle with a slot in the home, and it becomes possible. 罟 If you want to shorten the core paper tube. The place to be inserted into the missing circle is set at the center of the long production, which folds the paper tube in half, but it can also be opened at the two positions of the circle. MA w ^ is formed. Moreover, the length of each notch does not reach the inner moon surface A ΐ 1. In addition, each notch can be penetrated from the outer peripheral surface of the paper tube. Peripheral == Not penetrated so that the notch on the outer peripheral surface does not reach the inner tube and has 0Θ7 σ: down. The f-groove does not reach the inner peripheral surface, which is characteristic of the continuous inner peripheral layer 'of the paper thickness of the present invention. When the thickness of the inner peripheral layer is more than -0.7 mm, a force must be exerted at the time of fracture. The number of 'notches' in one circle is 2 or more and 6 or less. Number of missing slots 592943 5. The range of invention description (4) is more than 2 and less than 4. Since there are joints between adjacent gaps and gaps, the number of joints and gaps are the same. The shorter the length of the splicing part, the more likely it is to break, but if it is too short, the strength when winding the film or sheet cannot be maintained. Therefore, the length of the splicing portion is 5 to 4 mm, and preferably 2 to 3 mm. The lengths of the notches are at regular intervals. When the number of notches formed on one circumference is η, the length of the notches becomes shorter than 1 / n of the length of the circumference. Therefore, the present invention also relates to a paper tube for a core roll with a notch of at least η shorter than 1 of η of the circumference along a circumference of the paper tube (however, η = 2 to 6) . The difference between 1 / n of the length of the circumference and the length of the notch is equal to the length of the joint between the notch and the notch, and the length of the notch. Since the continuation portion is 1.5 to 4 mm, the length of the notch becomes 1.5 to 4 mm shorter than 1 / n of the length of the circumference. For example, if η gaps of equal length are to be placed on the circumference of a paper tube with an outer diameter of Xmm through 2mm intervals, the length of one gap is the same. Length of the circle Y: Y = (XX 3. 14) mm Length of one notch Z: Z = (Y-n-2) mm (here, X = 35 to 42 mm, n = 2 to 6) [ Embodiment of the invention] Fig. 1 is a perspective view showing an example of a core paper tube according to the present invention. Fig. 2 is a cross-sectional view taken along the line A-A in Fig. 1, and Fig. 3 is a perspective view when the core paper tube is broken with both hands. Fig. 4 is a perspective view showing a state where a paper tube for a core according to the present invention is used as a core of a packaging film (fresh film). In Figures 1 and 2, the outer diameter of the core paper tube 1 is 35 to 42 ri.

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592943

V. Description of the invention (6) Paper tubes are used to install a plurality of cutting disc cutters at equal intervals. By the number in the middle of the disc cutter for cutting: The above: However, the slot is penetrated from the outer peripheral surface to the inner peripheral surface = slot: 2 Mingzhong, can also make the slot not reach the inner periphery = ^ Buy: the inner surface. Fig. 5 is a second example of a paper tube showing a different example from Fig. 2: There is a mouth. For easy understanding, Fig. 5 is a large diagram of Fig. 2. Helmet ° Figure and circle q " picture for the central part of the tube. Fig. 5 shows an example of a slot in the core paper R 2. In Fig. 5, the width of each of the missing samples a C is 0 · 1 ~ 丨 _, which is one third of the length of the circle. Shorter length. The length of each notch and the length of 0 is a thickness of 0.7 or less, the inner peripheral surface of the Beton paper official, and the continuous use of the paper tube # 乂 佳 is to have a thickness of 0.3 mm to 0.5 mm: = week Layer 8. In addition, the contiguous portion & between the contiguous slots and the contiguous slots is connected to the inner peripheral surface from the outer peripheral surface of the paper tube, and the contiguous portion is 15 to 4 mm. The factory degree of n. The length in the circumferential direction of the splicing section is [Example] Example 1 μ The thickness h 35 off and the width 由 made of it I base paper, general paper, and high-grade paper: It is made of paper with a shape like 'outer warp 40 · A 7mm (inner diameter 38.0mm) screw 5 L is cut into a paper tube of length 3 08 · 0mm. At the same day temple, along the circumference of the paper tube, the circumference of the tube is shown in Figure 2. The tool holders fixed on the tool shaft at equal intervals are fixed to the tool shaft, and are in contact with the paper tube in rotation with the cutting set of cutting disc cutter / cutting disc cutter for forming ® .

592943 3/2 of the disc knife for the formation of gaps, at equal intervals | with the outer diameter of the disc knife tip is the inner diameter end of the paper can be cut to reach the inside of the paper tube: length 2 . When the part of the disc knife cutting part of the disc knife is at an early stage: f touches the circumference of the paper board-as a result, along the paper tube = in = = the first part is the continuation part. There are 4 missing slots in 29.9. The missing tooth / JV was set to have equal interval length ^ ^ Q The gap between the gap and the gap was 2mm. The visibility of the slot is U · dmm. In this way, a plurality of paper tubes containing slots can be manufactured. These paper tubes were made using Shimadzu automatic recorder AGS-5KNG, and a 3-point bending test was carried out at a room temperature of 23 ± t, a fulcrum distance of 100 mm, and a test speed of 20 mm / min to determine the cutting strength. The cut-off strength of the test of 10 paper tubes is °, the maximum value is 184.8N ', the minimum value is 32 · 1N, and the average value is 59 · 8N. When holding the paper tube with a notch in both the right and left hands, bend the sides. It can be easily cut without force and can be folded in half. It is also easy to cut when the table is hit with one hand. The obtained paper tube was used as a roll for a packaging film having a visibility of 30 cm and a length of 20 m. ^^ When used, it has sufficient strength in film winding without any trouble. Example 2 The same procedure as in Example j was carried out except that the length of the cutout portion of the disc cutter was 3 mm. A plurality of paper tubes having 4 notches were produced on the circumference of the central portion of the paper tube. The length of the notch is 28.9mm, and the length of the continuation is 3mni. These paper tubes are made of Shimadzu automatic recorder AGS-5KNG, and a 3-point bending test is carried out at a room temperature of 23 ± 10 ° C with a black space of 100mm and a test speed of 20mm / min.

592943

Test, and determine its cutting strength.丨 The cut-off strength of the test of 0 paper tubes is maximum 232 · 2N, minimum 169 · 5N, and average value 201 · 7N. "", ', 軎 ί f When holding the paper tube with a slot in the left hand and the left hand to bend it, it can be easily cut without force and can be folded into half of 1 degree. Also, It is also easy to cut when knocking on the table with one hand. Use ^ 's paper tube to make a packaging film with a width of 30cm and a length of 20m, and use it in roll 4 =, it has sufficient strength in the film winding, No trouble is caused. 0 3 The length of the notch portion of the disc knife is 4 mm, except for the example! The same method is used to manufacture a plurality of 4 tubes on the circumference of the central part of the paper tube. The length of the notch is 27 · 9 Lai, the length of the continuation section is 4. This paper tube is a Shimadzu automatic recorder AGS-5KNG, and the distance between the fulcrum points is 100 mm at a room temperature of 23 soil and the test speed is 20 mm / min. In order to determine its cutting strength, the cutting strength of 10 paper tubes in the test was 255.1N at the maximum, 191.8N at the minimum, and 215.3N at the average. Holding the obtained paper tube with a slot in the right hand and left hand respectively. When the two sides are bent next to each other, it can be cut with a little effort and it can be folded into half the length ^ When a single hand and has two hard rapped, it can be cut in half. So that the resulting paper tube made 3〇cm width, 2〇m core length of packaging film used to make

In use, it has sufficient strength in the winding of the film without any trouble. X Example 4 The same paper tube used in Example 1 was used.

592943

A plurality of grooves with a cross section as shown in FIG. 5 with three notches are manufactured on the peripheral tube layer. The length of the notch is 39.6 mm, and the length of the spliced part is 3 mm. 5mm。 The thickness of the inner Fujian is 0. 5mm. The word-軎 i holds the two ends of the paper tube with a slot in the right and left hands. When bending, it can be easily cut without force and can be folded into half. Taxi can also be easily cut when knocked on the table with one hand. Making the film thickness of 30cm in width and 20m in length used as the core of the packaging film, it has sufficient strength in the film winding, and will not cause any numbness on the tool holder. The knife set for notch formation and notch for cutting and forming, and the disc cutter for f-cutting / disconnection for cutting are set in the same manner as in Example 1 except that the knife set is in contact with the turning paper. Manufacture of several paper tubes without missing slots. These paper tubes are made using Shimadzu automatic recorder AGS-5KNG, and the temperature is between 2 3 ± 1 ° C. 〇 _ _, a 3-point bending test was performed under the conditions of a test speed of 20 mm / m i η to determine the cutting strength. The cutting strength of the test of 10 paper tubes is: maximum 30. 2N, minimum 277.6N, average 288.9N.

When each of the obtained paper tubes is held by the right hand and the left hand, the two sides of the paper tube are bent and cannot be bent even when they are bent. In addition, you cannot cut it when you hit the table with one hand. [Effect of the Invention] According to the present invention, since the paper tube for the core has a slot along the circumference, it can be simply bent by hand when it is destroyed, or it can be bent by knocking, etc.

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592943 Wuyi by surface 4a 6a 5a 7a 8 Description of the invention (10) Shortened, can provide paper tubes that can be destroyed without increasing volume. Also, the splicing portion has the same thickness as the paper tube and exists on the outer periphery of the paper tube. Therefore, no trouble occurs when winding the film or sheet. Description of component number] Paper tube for core, 3 Paper tube part Notch notch Joint part Joint part Inner peripheral layer 4b 6b 5b 7b 4c 6c 5c 7c 4d 5d

C: \ 2D-CODE \ 91-12 \ 91121753.ptd Page 14 592943 Brief Description of Drawings Fig. 1 is a perspective view showing an example of a paper tube for a core according to the present invention. Fig. 2 is a sectional view taken along the line A-A in Fig. 1. FIG. 3 is a perspective view when the core paper tube of FIG. 1 is broken with both hands. Fig. 4 is a perspective view showing a state where a paper tube for a core according to the present invention is used as a core for a packaging film. Fig. 5 is a cross-sectional view showing another example of the core paper tube of the present invention.

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Claims (1)

592943 VI. Scope of patent application 1. At least a slot in a paper tube for a core, and the continuation of each slot is the length from the circumferential direction 2. If the number of patents applied is 2 or more 4 3. If applied Patent from the outer peripheral surface of the paper tube 4. If the patent application has not reached the inner peripheral surface, or 0 paper tube, along the outer diameter of 3 5 ~ 4 2 mm, thickness 1 ~ 1. 5 mm on a circumference of a position with more than 2 5〜4mm 者。 The transverse width of 6 or less is 0. 1 ~ 1 mm, the outer peripheral surface of the adjacent notch and the paper tube between the notches is continued to the inner peripheral surface, and the connection portion is 1. 5 ~ 4mm 者. The paper tube for the core of the item in the first item, wherein the number of the notch is less than or equal to the number of the slot. The paper tube for a core according to item 1 of the scope, wherein the notch is a portion that penetrates the inner peripheral surface. The paper tube for a core according to the first item, wherein the inner peripheral layer is not continuous and has a thickness of 0.7 mm or less C: \ 2D-CODE \ 9M2 \ 91121753.ptd Page 16