WO2014181752A1 - ラップフィルム収納箱 - Google Patents

ラップフィルム収納箱 Download PDF

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Publication number
WO2014181752A1
WO2014181752A1 PCT/JP2014/062084 JP2014062084W WO2014181752A1 WO 2014181752 A1 WO2014181752 A1 WO 2014181752A1 JP 2014062084 W JP2014062084 W JP 2014062084W WO 2014181752 A1 WO2014181752 A1 WO 2014181752A1
Authority
WO
WIPO (PCT)
Prior art keywords
wrap film
tooth
saw blade
storage box
film storage
Prior art date
Application number
PCT/JP2014/062084
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
美子 佐々木
Original Assignee
旭化成ケミカルズ株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 旭化成ケミカルズ株式会社 filed Critical 旭化成ケミカルズ株式会社
Priority to CN201480024826.XA priority Critical patent/CN105246789B/zh
Priority to JP2015515859A priority patent/JP6132906B2/ja
Publication of WO2014181752A1 publication Critical patent/WO2014181752A1/ja

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D83/00—Containers or packages with special means for dispensing contents
    • B65D83/08—Containers or packages with special means for dispensing contents for dispensing thin flat articles in succession
    • B65D83/0805—Containers or packages with special means for dispensing contents for dispensing thin flat articles in succession through an aperture in a wall
    • B65D83/0811—Containers or packages with special means for dispensing contents for dispensing thin flat articles in succession through an aperture in a wall with means for assisting dispensing
    • B65D83/0841—Containers or packages with special means for dispensing contents for dispensing thin flat articles in succession through an aperture in a wall with means for assisting dispensing and for cutting interconnected articles

Definitions

  • the present invention relates to a wrap film storage box that is generally used for direct packaging of food in general households and food sales businesses, and more particularly to a saw blade used in a wrap film storage box.
  • a wrap film storage box in which a wound wrap film is stored in a storage chamber of a columnar box main body as shown in FIG. 1 is known.
  • Various types of columnar boxes for example, a cylindrical shape or a triangular to octagonal polygonal columnar shape are known.
  • the wrap film is drawn out from the wound wrap film in the box body, and is cut by, for example, a saw blade attached to the back surface of the front wall of the lid of the box body.
  • a metal blade is generally used for the saw blade attached to the current commercial storage box.
  • the shape design of conventional metal saw blades has been carefully selected from the three viewpoints of safety that does not damage fingers etc., advanced cutting performance, and sustainability of the cutting performance, and the processing accuracy is meticulous. Careful process management is carried out, so in these respects, consumers are highly marketed as highly rated as “excellent”.
  • the storage box as described above “the wrap film is torn in the vertical, horizontal and diagonal directions (unintended directions)”.
  • This kind of defective phenomenon is common in, for example, wrap films having a vinylidene chloride resin thickness of 8 to 15 ⁇ m.
  • the situation where this defective phenomenon occurs is when the temporary attachment portion for temporarily attaching the end portion of the wrap film is formed in the storage box.
  • the wrap film is longitudinally, transversely, diagonally (unintentional direction) from the traces of the tooth blades on the edge of the wrap film. It has been torn.
  • the cause of this failure phenomenon is that, as a measure to completely prevent the end of the drawn wrap film from rolling back into the storage box, the temporary fastening part has been increased in locking strength. It is in making it difficult to remove the stopped wrap film.
  • the wrap film is easily peeled off by lowering the locking strength of the temporary fastening portion, the phenomenon that the end portion of the wrap film rewinds increases and the end portion of the wrap film sticks to the wound wrap film. Therefore, a defective phenomenon in which the wrap film is torn in an unintended direction occurs on the surface of the wound wrap film, and the location of the occurrence only moves, which cannot be a drastic measure against this problem.
  • the present invention has been made in view of such a point, and the saw blade has a high cutting performance, and the wrap film can suppress the wrap film from being split longitudinally, laterally, and obliquely (in an unintended direction) from the cut end portion.
  • the object is to provide a film storage box.
  • a wrap having a box main body for storing a cylindrical wound wrap film, and a saw blade provided along the longitudinal direction of the box main body for cutting the wrap film drawn from the box main body.
  • the saw blade includes a plurality of tooth crests arranged in the longitudinal direction of the box body and a flat portion connecting adjacent tooth crests, and each tooth crest is a tooth from a tooth tip to a tooth.
  • the inclination and the flat part are connected in an arc shape, the inclination of the tooth side of the box body part and the flat part
  • the radius of curvature R2 of the arc between the end side inclination and the flat portion is 0.36 ⁇ ((H1 + H2) / 2) (H1, H2 is the height of the tooth crest with respect to the flat surface and satisfies the condition of R2 ⁇ 0.55 ⁇ ((H1 + H2) / 2).
  • the height is H1
  • the lower height is H2
  • there is only one type of tooth height the height is H1 and H2)
  • a wrap film storage box (2)
  • the radius of curvature R1 of the arc between the inclination on the center side of the tooth ridge and the flat portion, and the radius of curvature R2 of the arc between the inclination on the box end side of the tooth ridge and the flat portion By setting so as to satisfy the predetermined condition, when the wrap film first bites into the wrap film and the wrap film breaks, and the breaks of the wrap film by the adjacent tooth tips are connected to each other, those breaks may be shifted from each other.
  • the wrap film storage box A shown in FIG. 1 is an example of a rectangular columnar shape that is widely marketed and widely used.
  • a wrap film storage box A includes a rectangular parallelepiped storage portion M formed by a front plate 1, a bottom plate 2, a rear plate 3, and a side plate 4, and a rear plate 3 of the storage portion M.
  • a lid plate 5 connected in a direction covering the opening of the storage portion from the side edge, a lid cover piece 6 extending from the side edge of the lid plate 5 in a direction covering the front plate 1, and a lid portion N formed by the side plates 7 is provided.
  • the box main-body part 10 which accommodates the cylindrical winding wrap film R in the inside is provided.
  • the box body portion 10 is provided with a saw blade K for cutting the wrap film F drawn from the wound wrap film R stored in the storage portion M.
  • the saw blade K is, for example, a long rectangle, and is provided along the longitudinal direction of the box body 10 at the tip of the lid cover piece 6.
  • the front plate 1 is provided with a temporary fastening portion Q for temporarily fastening an end portion of the wrap film F.
  • FIG. 2 is an overall view of the saw blade K.
  • the saw blade K is attached symmetrically about the center line CL of the box body 10 and is formed between both ends (end lines) EL in the longitudinal direction of the box body 10.
  • the saw blade K includes a plurality of tooth teeth 20 arranged in the longitudinal direction of the box body 10 and a flat portion 21 that connects adjacent tooth teeth 20.
  • Each tooth crest 20 is inclined toward the center line CL side and the end line EL side of the box body portion 10 from the tooth tip toward the tooth root, and the inclined portion 22 and the flat portion 21 are connected in an arc shape.
  • FIG. 4 shows an example of a saw blade K having a symmetrical tooth profile 20
  • FIG. 5 shows that the tooth profile 20 is inclined toward the center line CL (the tooth tip of the tooth 20 is on the center line CL side).
  • 6 shows an example of a saw blade K.
  • FIG. 6 is a saw in which the shape of the tooth crest 20 is inclined toward the end line EL side in the longitudinal direction (the tooth tip of the tooth crest 20 faces the end line EL side).
  • An example of the blade K is shown.
  • FIG. 7 shows an example of a saw blade K having two types of tooth teeth 20 having different heights.
  • the radius of curvature R1 of the arc between the inclined portion 22 on the center line CL side of the tooth peak 20 and the flat portion 21 is 0.36 ⁇ ((H1 + H2) / 2) ⁇ R1 ⁇ 0.55 ⁇ ((H1 + H2) / 2), the curvature radius R2 of the arc between the inclined portion 22 on the end line EL side of the tooth peak 20 and the flat portion 21 is 0.36 ⁇ ((H1 + H2) / 2) ⁇ R2 ⁇ 0. .55 ((H1 + H2) / 2) is satisfied.
  • H1 and H2 are the heights of the tooth ridges 20 with respect to the flat surface 21, and when there are two types of tooth ridge heights, the higher one is H1 and the lower one is H2.
  • H1 and H2 When there is only one type of tooth crest height, the heights are designated as H1 and H2. When the heights of H1 and H2 are different, when the wrap film F bites into the saw blade K, the timing of biting is different, and when the ruptures of the wrap film F are connected to each other at the flat portion 21, the breaks may shift from each other. H1 and H2 are preferably the same height.
  • the tooth tip bites into the wrap film F first, and the wrap film F breaks, and then the wrap film F formed by the adjacent tooth tip.
  • the breaks are connected, the breaks are not shifted from each other, and the wrap film F corresponding to the flat portion 21 of the saw blade K is prevented from being scratched or cracked.
  • it is possible to suppress tearing that occurs vertically, horizontally, and obliquely (in an unintended direction) from the cut end of the wrap film F.
  • it can prevent that the cutting performance of the saw blade K falls at that time.
  • the wrap film F is broken by each tooth tip. At this time, the wrap film F is cracked in the flat portion 21 and the wrap film F after being cut is split vertically, laterally, and obliquely (in an unintended direction) from the cut end portion. .
  • the curvature radius R1 and the curvature radius R2 are preferably the same curvature radius.
  • the length L2 of the flat portion 21 between the tooth teeth 20 is preferably in the range of 0.15 mm to 0.30 mm. More preferably, the length L2 of the flat portion 21 is in the range of 0.15 mm or more and 0.25 mm or less. When the length L2 of the flat portion 21 is within this range, a phenomenon that the wrap film F tears in an unintended direction is less likely to occur.
  • a flat part shows the part in which the height difference in the flat part 21 is 0.05 mm or less.
  • the saw blade K is formed using a thin metal plate such as tinplate.
  • the thickness of the saw blade K is preferably in the range of 0.15 mm to 0.30 mm.
  • burrs 8 may be raised at the cutting edge of the saw blade K on the side in contact with the wrap film F.
  • the burr 8 is erected, when the wrap film F is cut, the burr 8 easily bites into the wrap film F, and the cutting performance is improved.
  • the thickness of the saw blade K is less than 0.15 mm, the rigidity for cutting the wrap film F cannot be secured, and if it exceeds 0.30 mm, the wrap film F has teeth when cutting the wrap film F. The tip becomes difficult to bite and the cutting performance decreases.
  • Examples of the material of the wrap film F include polyvinylidene chloride, polyvinyl chloride, polyethylene, polymethylpentene, polyethylene / nylon / polyethylene, and the like. Polyvinylidene chloride is most preferable in terms of good cutting properties.
  • Examples of the material of the saw blade K include polyester, polyethylene, polypropylene, polystyrene, acetal resin, polyphenylene sulfide, PEEK (polyether ether ketone resin), PES (polyether sulfone resin), PPS (polyphenylene sulfide), and the like. be able to.
  • Example 1 In the first embodiment, as shown in FIG. 4, the saw blade is symmetrical with respect to the center line CL, and the tooth teeth 20 having a substantially isosceles triangle are installed in the entire lateral width of the box body 10. K was used. In the saw blade K, the radii of curvature R1 and R2 between the inclined portion 22 of the tooth ridge 20 and the flat portion 21 are 0.25 mm, and the length L2 of the flat portion 21 between the tooth ridges 20 is 0.21 mm. Using the wrap film storage box equipped with this saw blade K, cutting performance, end face strength (stripping strength at the end of the cut film), vertical tear trouble during recovery work (longitudinal tear after trouble occurs) according to the evaluation criteria described later Ease of care).
  • the teeth 20 are symmetrical with respect to the center line CL, and the tooth teeth 20 of substantially isosceles triangles having different sizes are alternately arranged in the entire width of the box body 10.
  • the arranged saw blade K was used.
  • the radii of curvature R1 and R2 of the arc between the inclined portion 22 and the flat portion 21 of the tooth crest 20 are in the range of 0.20 mm or more and 0.30 mm or less.
  • the length L2 of the flat part 21 between the tooth teeth 20 is 0.15 mm or more and 0.26 mm or less.
  • the radius of curvature R1 and R2 of the arc between the inclined portion 22 and the flat portion 21 of the tooth crest 20 is in the range of 0.15 mm to 0.60 mm, and the radius of curvature on the center line CL side is R1 is smaller than the radius of curvature R2 on the end line EL side.
  • the length L2 of the flat part 21 between the tooth teeth 20 is 0.02 mm or more and 0.24 mm or less.
  • the curvature radii R1 and R2 of the arc between the inclined portion 22 and the flat portion 21 of the tooth crest 20 are in the range of 0.15 mm or more and 0.60 mm or less, and the curvature radius on the center line CL side is R1 is larger than the radius of curvature R2 on the end line EL side. Moreover, the length L2 of the flat part 21 between the tooth teeth 20 is 0.02 mm or more and 0.24 mm or less.
  • Comparative Example 14 In this comparative example 14, a saw blade K as shown in FIG. 5 is used, and the saw blade K is symmetric about the center line CL, and the tooth tip of the saw blade K is located on the center line CL side. It is suitable.
  • the radius of curvature R1 of the arc between the inclined portion 22 and the flat portion 21 of the tooth peak 20 is 0.45 mm and R2 is 0.25 mm, and the length of the flat portion 21 between the tooth teeth 20 is long.
  • the length L2 is 0.17 mm.
  • the spread angle ⁇ of the tooth crest 20 is 49.2 degrees.
  • Comparative Examples 15 and 16 In this comparative example, a saw blade K as shown in FIG. 6 is used. The saw blade K is symmetric about the center line CL, and the tooth tip of the saw blade K faces the end line EL side. Yes.
  • the radius of curvature R1 of the arc between the inclined portion 22 and the flat portion 21 of the tooth 20 is 0.25 mm and R2 is 0.45 mm, and the length of the flat portion 21 between the teeth 20 is as follows. L2 is 0.17 mm.
  • the curvature radius R1 of the arc on the center line CL side between the inclined portion 22 and the flat portion 21 of the tooth ridge 20 is 0.25 mm
  • the curvature radius R2 of the arc on the end line EL side is 0.60 mm
  • the length L2 of the flat portion 21 between the tooth teeth 20 is 0.09 mm.
  • the spread angle ⁇ of the tooth tip of the tooth crest 20 is 49.2 degrees.
  • Comparative Examples 17 to 20 In Comparative Examples 17 to 20, a saw blade K as shown in FIG. 7 is used, and the saw blade K is symmetric with respect to the center line CL. Two kinds of teeth of the tooth crest 20 having a low height H2 are alternately provided.
  • the radius of curvature R1 and R2 of the arc between the inclined portion 22 and the flat portion 21 of the tooth crest 20 is in the range of 0.15 mm or more and 0.35 mm or less.
  • the length L2 of the flat part 21 between is 0.00 mm or more and 0.32 mm or less.
  • each of the saw blades K in the above examples and comparative examples is the shape shown in FIGS. 4 to 7, as shown in Table 1 of FIG.
  • Each saw blade K in the above examples and comparative examples is a wrap film storage box (length: about 31 cm, width: 4 cm) used in “Saran Wrap” (registered trademark) manufactured and sold by Asahi Kasei Home Products Corporation. A paper box having a height of 5 cm and a height of 4.5 cm. Then, the polyvinylidene chloride wrap film accommodated in the wrap film storage box was actually cut.
  • evaluation criteria and results The evaluation methods and evaluation scales used in the examples of the present invention are as follows, and the evaluation results and pass / fail ( ⁇ : pass, x: fail) are shown in FIG.
  • the wrap film F is pulled out from the wrap film storage box A at a speed of 1 m / min, and the angle formed between the storage box A (the saw blade K of the lid piece 6) and the end of the wrap film F is 50.
  • the normal wrap film F is cut sequentially from one end to the other end of the saw blade K, and the wrap film F is saw blade while maintaining the parallel relationship between the storage box A and the wrap film F.
  • the measured value of the cut energy in each storage box A is shown in FIG. 9 (the second decimal place is rounded off).
  • Examples 1 to 7 and Comparative Examples 1 to 3, and 5 to 15 are acceptable, but Comparative Examples 4 and 16 to 20 are deemed unacceptable because cutting energy is high and cutting performance is poor.
  • the cutting performance deteriorates when two kinds of teeth of different sizes are alternately provided because the cutting energy of Comparative Examples 17 to 20 is high.
  • the wrap film storage box A of the present invention has the cutting strength of the conventional (commercially available) product, and the tear strength at the end of the cut wrap film F is 1 of the conventional (commercially available) product. It has the effect of increasing by 5 times.
  • the cut end portion of the wrap film F is brought into close contact with the wound wrap film R and the wrap film F is peeled off from the end with a cello tape (registered trademark), “longitudinal, lateral, oblique directions (unintended directions )
  • the wrap film is torn. ”It has the effect of reducing the vertical tear occurrence rate to 1/2 or less of the conventional (commercially available) product.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Cartons (AREA)
  • Details Of Rigid Or Semi-Rigid Containers (AREA)
PCT/JP2014/062084 2013-05-09 2014-05-01 ラップフィルム収納箱 WO2014181752A1 (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN201480024826.XA CN105246789B (zh) 2013-05-09 2014-05-01 保鲜膜收纳箱
JP2015515859A JP6132906B2 (ja) 2013-05-09 2014-05-01 ラップフィルム収納箱

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2013-099273 2013-05-09
JP2013099273 2013-05-09

Publications (1)

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WO2014181752A1 true WO2014181752A1 (ja) 2014-11-13

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PCT/JP2014/062084 WO2014181752A1 (ja) 2013-05-09 2014-05-01 ラップフィルム収納箱

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JP (1) JP6132906B2 (zh)
CN (1) CN105246789B (zh)
TW (1) TWI488776B (zh)
WO (1) WO2014181752A1 (zh)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10479550B2 (en) 2012-03-26 2019-11-19 Kraft Foods R & D, Inc. Packaging and method of opening
US10507970B2 (en) 2013-03-07 2019-12-17 Mondelez Uk R&D Limited Confectionery packaging and method of opening
US10513388B2 (en) 2013-03-07 2019-12-24 Mondelez Uk R&D Limited Packaging and method of opening

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020188899A1 (ja) * 2019-03-19 2020-09-24 株式会社クレハ 切断刃および包装容器

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05147645A (ja) * 1991-06-24 1993-06-15 Kouyoushiya:Kk 巻回フイルムの紙箱
JPH08175536A (ja) * 1994-12-26 1996-07-09 Asahi Chem Ind Co Ltd ラップフィルムの収納箱
JP3562867B2 (ja) * 1995-05-19 2004-09-08 旭化成ライフ＆リビング株式会社 ラップフイルム収納箱
JP2005187015A (ja) * 2003-12-26 2005-07-14 Takashi Kanda 安全性の優れたラップフィルム収納ケース
JP2006188285A (ja) * 2004-12-06 2006-07-20 Asahi Kasei Life & Living Corp ラップフィルム用収納箱
JP2007302346A (ja) * 2007-06-14 2007-11-22 Kureha Corp 包装用容器

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0642653U (ja) * 1992-06-08 1994-06-07 本州製紙株式会社 切歯付カートン
JPH0977055A (ja) * 1995-09-12 1997-03-25 Dainippon Printing Co Ltd ロール状長尺体の収納体
JP2746229B2 (ja) * 1995-10-30 1998-05-06 株式会社移動体通信先端技術研究所 パルス管冷凍機
US5839634A (en) * 1997-01-27 1998-11-24 The Procter & Gamble Co. Blade for severing sheet materials
US6520395B1 (en) * 1999-05-14 2003-02-18 Yoshikazu Takayama Wrap film supplier
JP5090778B2 (ja) * 2006-05-31 2012-12-05 株式会社クレハ 包装容器用の切断刃及びそれを有する包装容器
WO2008153012A1 (ja) * 2007-06-15 2008-12-18 Asahi Kasei Home Products Corporation フィルム用収納箱

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05147645A (ja) * 1991-06-24 1993-06-15 Kouyoushiya:Kk 巻回フイルムの紙箱
JPH08175536A (ja) * 1994-12-26 1996-07-09 Asahi Chem Ind Co Ltd ラップフィルムの収納箱
JP3565597B2 (ja) * 1994-12-26 2004-09-15 旭化成ライフ＆リビング株式会社 ラップフイルムの収納箱
JP3562867B2 (ja) * 1995-05-19 2004-09-08 旭化成ライフ＆リビング株式会社 ラップフイルム収納箱
JP2005187015A (ja) * 2003-12-26 2005-07-14 Takashi Kanda 安全性の優れたラップフィルム収納ケース
JP2006188285A (ja) * 2004-12-06 2006-07-20 Asahi Kasei Life & Living Corp ラップフィルム用収納箱
JP2007302346A (ja) * 2007-06-14 2007-11-22 Kureha Corp 包装用容器

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10479550B2 (en) 2012-03-26 2019-11-19 Kraft Foods R & D, Inc. Packaging and method of opening
US10507970B2 (en) 2013-03-07 2019-12-17 Mondelez Uk R&D Limited Confectionery packaging and method of opening
US10513388B2 (en) 2013-03-07 2019-12-24 Mondelez Uk R&D Limited Packaging and method of opening

Also Published As

Publication number Publication date
TWI488776B (zh) 2015-06-21
TW201507940A (zh) 2015-03-01
CN105246789B (zh) 2017-06-06
CN105246789A (zh) 2016-01-13
JPWO2014181752A1 (ja) 2017-02-23
JP6132906B2 (ja) 2017-05-24

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