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CN-114521188-B - Film packaging paper extraction

CN114521188BCN 114521188 BCN114521188 BCN 114521188BCN-114521188-B

Abstract

The invention provides a film packaging tissue which is easy to take out even more than 3 layers of tissues. The object is achieved by a film packaging paper sheet in which bundles of paper sheets are packaged with a soft resin packaging film, the film packaging paper sheet having an extraction opening forming portion on the upper surface, the paper sheets being 3 or 4 layers of paper sheets each having a basis weight of 12.5 to 22.5g/m 2 and a paper thickness of 185 to 285 [ mu ] m, the extraction opening forming portion being formed by arranging frangible lines in which cut portions and non-cut portions are alternately arranged in a ring shape, and being formed in an elongated shape in which a central portion in the depth direction of the upper surface of the film packaging paper sheet extends in the width direction and both end portions protrude outward, and in which the arrangement of cut portions and non-cut portions at the respective end portions in the width direction is different, the length in the width direction of the extraction opening forming portion being 60 to 75% of the length in the width direction relative to the width of the upper surface of the film packaging paper sheet, and the maximum length in the depth direction being 6 to 15% of the length in the depth direction of the upper surface of the film packaging paper sheet.

Inventors

  • YOSHIDA SHOHEI

Assignees

  • 大王制纸株式会社
  • 大王制纸株式会社

Dates

Publication Date
20260421
Application Date
20210805
Priority Date
20200826

Claims (6)

  1. 1. A film packaging paper extraction is characterized in that, The film packaging tissue is formed by packaging bundles of paper towels by soft resin packaging films, The paper towel is 3-layer or 4-layer paper towel with the basis weight of 12.5g/m 2 ～22.5g/m 2 of each 1 layer and the paper thickness of 185-285 mu m, The film packaging paper extraction has a take-out port forming part on the upper surface, The take-out port forming part is formed by arranging easily-breakable lines alternately provided with cutting parts and non-cutting parts in a ring shape, the take-out port forming part is in an elongated shape extending in the width direction at the central part of the upper surface in the depth direction and having both end parts protruding outwards, The length of the extraction port forming part in the width direction is 60% -75% of the length of the upper surface, the maximum length of the extraction port forming part in the depth direction is 6% -15% of the length of the upper surface in the depth direction, The packaging film of the upper surface portion has a B value of 0.093gf X cm 2 /cm or less, a 2HB value of 0.033gf X cm/cm or less as measured by a KES-FB2-S bending machine, The B value of the paper towel measured by a KES-FB2-S bending tester is 0.010gf multiplied by cm 2 /cm～0.022gf×cm 2 /cm, and the 2HB value is 0.012gf multiplied by cm/cm-0.029 gf multiplied by cm/cm.
  2. 2. The film wrapper of claim 1, wherein, The outlet forming portion has a shape including a narrow portion extending in the longitudinal direction at a widthwise central portion, a widened portion communicating with an end portion of the narrow portion and gradually widening as it moves away from the narrow portion toward the widthwise outer side, and a convex portion continuous with the widened portion and bulging so as to protrude toward the widthwise outer side.
  3. 3. The film wrapper of claim 2, wherein, The length of the narrow portion in the width direction is 35% -65% of the length of the upper surface, and the length of the narrow portion in the depth direction is 3% -7% of the length of the upper surface in the depth direction.
  4. 4. The film wrapper of claim 2, wherein, At least one end of the outlet forming portion is a cut portion extending from a middle of the widened portion on one side in the depth direction to a position beyond the outer end of the protruding portion.
  5. 5. The film wrapper of claim 1, wherein, The outlet forming portion may have a different arrangement of the cut portion and the non-cut portion at each end in the width direction, and the cut portion may be positioned at an outer end of at least one end.
  6. 6. The film wrapper of claim 1, wherein, The film packaging tissue is formed by overlapping and packaging a bundle of substantially rectangular paper towels in which a plurality of paper towels are folded and laminated, and an end surface formed by a tube opening sealing portion is located at a position facing a short side surface of the bundle, and an adhesive portion formed by laminating and adhering packaging films to each other is located at a position facing one long side surface.

Description

Film packaging paper extraction Technical Field The present invention relates to a film-packed tissue in which a bundle of folded and laminated tissues is packed with a flexible packing film. Background Tissues generally have a laminate structure in which a plurality of sheets are stacked. Conventionally, for example, in japan, 2 sheets of superimposed paper towels called 2 sheets, which are excellent in flexibility or pliability, have been the mainstream because of their use mainly for blowing nasal discharge, wiping around the mouth at the time of dining, and other facial uses (for example, patent documents 1 and 2 below). On the other hand, in asia countries, europe and the united states, etc. other than japan, tissues are frequently used not only for facial applications but also for wiping of skin and wiping of articles other than faces, and there is a demand for "thick and hardly broken quality" and a demand for tissues having a large number of stacked sheets such as 3-layer sheets and 4-layer sheets. Further, the multi-layered tissue having more than 2 layers has a large mass per 1 group and high rigidity. On the other hand, the tissues are used in the form of a tissue package in which a plurality of bundles are stacked. Among such tissue packages, there is known a tissue package also called a film packaging tissue in which bundles of tissues are packaged with a flexible packaging film made of a resin. As this film wrapping paper, a portable film wrapping paper called a pocket paper is known, but in some cases, the film wrapping paper is used in a fixed manner or is used as a bundle refill for a box, as is the case with a paper bundle in a paper storage box called a cardboard box (hereinafter, also referred to as a box). Such film package paper extraction used in a fixed manner or the like is a so-called pop-up type in which, for the bundle of the inner package, when the uppermost sheet is extracted, a part of the next sheet is extracted. The film-wrapped tissue has advantages in terms of reduction of packaging material, transportation cost based on compactness, and portability, as compared with the box-packed member. On the other hand, in the conventional film packaging paper extraction, in order to reduce the cost, the perforation line for forming the take-out opening formed in the upper surface is usually a simple straight slit perforation line. However, in the slit-shaped take-out opening formed by unsealing such a perforation line, in particular, if the slit length is made longer, there are problems that the sheets fall into the interior when the number of sheets remaining in the interior is reduced, and if the slit length is made shorter, it is difficult to take out one sheet out of the film at the beginning after unsealing, and in addition, the pull-out resistance at the beginning of use is excessively high, and the sheet is pulled out together with the exterior film at the time of sheet extraction. In order to solve such a problem, a perforation line for forming the outlet by a die-cutting technique or the like is arranged in a long and thin loop shape extending in the longitudinal direction, and the outlet opening is provided as a wide opening having a width in the depth direction (patent documents 1 and 2 below). However, the conventional elongated annular removal opening is designed to be suitable for a 2-ply tissue excellent in softness and flexibility, and for example, in patent document 1, the length in the depth direction is set to 15 to 28% with respect to the depth direction of the tissue bundle. However, such a port for taking out a tissue mainly suitable for 2 layers is not necessarily suitable for the above-mentioned 3-layer and 4-layer tissues having high rigidity. In particular, the 3-ply and 4-ply tissues have higher rigidity than the 2-ply tissues, and therefore, in order to improve the removal property, the width of the opening needs to be increased, but the design is difficult to be similar to the 2-ply tissues because the balance between the falling resistance and the 2-ply tissues is different. On the other hand, the hygienic concept and the living style differ depending on the country and region, and the die-cut type opening area having the width in the depth direction disclosed in patent document 2 is not preferable because the opening is excessively large, and it is considered that many people are liable to be contaminated with foreign matters. In view of such a demand, it is preferable to reduce the opening area, but if only the opening area is reduced, the removability and unsealability are reduced. Prior art literature Patent literature Patent document 1 Japanese patent application laid-open No. 2018-052559 Patent document 2 Japanese patent application laid-open No. 2018-058654 Disclosure of Invention Problems to be solved by the invention In view of the above, a main object of the present invention is to provide a film-wrapped tissue which gives an impression that fo