EP0304255A2 - Reibungsfläche für Verpackungsfolien oder dergleichen mit Reibungsflächen - Google Patents

Reibungsfläche für Verpackungsfolien oder dergleichen mit Reibungsflächen Download PDF

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Publication number
EP0304255A2
EP0304255A2 EP88307542A EP88307542A EP0304255A2 EP 0304255 A2 EP0304255 A2 EP 0304255A2 EP 88307542 A EP88307542 A EP 88307542A EP 88307542 A EP88307542 A EP 88307542A EP 0304255 A2 EP0304255 A2 EP 0304255A2
Authority
EP
European Patent Office
Prior art keywords
foil
friction surface
friction
coating
hot melt
Prior art date
Legal status (The legal status 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 status listed.)
Withdrawn
Application number
EP88307542A
Other languages
English (en)
French (fr)
Other versions
EP0304255A3 (de
Inventor
Matti Katila
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ahlstrom Corp
Original Assignee
Ahlstrom Corp
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 Ahlstrom Corp filed Critical Ahlstrom Corp
Publication of EP0304255A2 publication Critical patent/EP0304255A2/de
Publication of EP0304255A3 publication Critical patent/EP0304255A3/de
Withdrawn legal-status Critical Current

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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
    • B65D65/00—Wrappers or flexible covers; Packaging materials of special type or form
    • B65D65/38—Packaging materials of special type or form
    • B65D65/42—Applications of coated or impregnated materials

Definitions

  • the present invention relates to a friction foil of plastics, paper or like material, which is provided with a friction surface on the foil.
  • friction foils which include an adhesive surface but such are expensive, because a substantial area of adhesive is needed. Also, in dusty environments the adhesive surface becomes covered with impurities and dust and loses its good frictional qualities. A packaging foil with an adhesive surface is also difficult to pack and use.
  • the main purpose of the invention is to avoid or minimize said disadvantages.
  • the friction surface according to the invention is formed on a foil by a coating having thermo­plastic hot melt spot-like or some other figures made by means of a screening method.
  • the coating is preferably transparent or colourless, but it can also be coloured.
  • Hot melt is used 2-15 g/m2, most prefe­rably only about 3 g/m2.
  • the friction foil is usable as a finished product after a short cooling time, and it does not require an evaporation line for any solvents or an expensive method of packing, as do the friction surfaces coated with adhesive material.
  • the product does not have volatile sub­stances, such as solvents of dispersion glue.
  • the friction foil according to the invention is very economic to produce and therefore it can also be used as the packaging for inexpensive materials, such as large food product pack­ages, fertilizer sacks, timber covers, raw material sacks and bulk material packages.
  • the piling of food product packages is very difficult without a friction surface, and the products packaged therein may break if they fall.
  • the foil can also be used as an anti-skid device in the transport.
  • the coating in accordance with the invention is carried out by means of a screening method or like method, it is possible to coat the foil only on required parts, where­by the costs can be further diminished and thus it is also possible to print a text on the same foil after coating the foil with the friction surface.
  • Such is not possible, for example, for such friction surface, which is made by blowing chopped pieces of plastics foil during the production stage on the plastics foil.
  • the spreading unit for the hot melt can operate as a part of a press or as an extension of it, whereby the increase in the production costs to produce the friction surface is considerably small.
  • thermoplastic melt on a packaging foil is known as such and disclosed, for example, in Finnish patent publication 71263.
  • the coefficient of friction of totally smooth plastics foils of some plastics types is generally high, but even slight impurities, such as concrete dust, aggregate dust or pollen dust may reduce the friction coefficient considerably. With the sack packages it is not even possible to produce smooth surface which would be against each other.
  • the friction at least doubles when a coated foil according to the invention is against an uncoated foil, and when two friction foils are against each other, the total friction is even higher, and approaching, in the most preferable conditions, the value of 1
  • corundum as filling ma­terial of the thermoplastic melt, when the packing foil is thick, or, for example, calcium phosphate, magnesium silicate, silicon dioxide or combination thereof; the filling material is known as such from US patent publication 3,691,120.
  • the screening surface can be varied by a known method on the top and bottom surfaces, the total effect of which gives an advantageous binding as a result.
  • a foil 1 is coated with coating 2 comprising a plurality of conical projections of dots each having a flat top.
  • the dots are provided by means of a screening technique, as illustrated in Fig. 3.
  • a screening roll 3 is provided with cup-like recesses 4 and is partly immerged in a hot melt 6 contained in a vat 5. When the screening roll 3 rotates it raises hot melt from the vat, whereby the melt in the cups 4 is brought into communication with the foil 1 running between a press roll 7 and the screening roll 3, and the melt adheres on the surface of the foil forming a dot-like coating of projections.
  • a scraper 8 any excess hot melt is removed from the surface of the screening roll.
  • the screening cups are dimensioned in such a way that the hot melt forms projections on the foil surface, the height of which pro­jections is about 50-150 ⁇ m and which form the desired pattern.
  • a low density polythene foil the thickness of which was 0,2 mm, was coated using an apparatus according to Fig. 3 with hot melt mainly consisting of ethyl-vinyl acetate, the viscosity of which was 1000 cP in the temperature of 140° C.
  • the depth of the screening cups 4 was 0,12 mm and their diameter 1 mm.
  • the distance of the dot-like projections from each other was 4 mm.
  • the finished product may be used in the manufacture of sacks.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Wrappers (AREA)
  • Laminated Bodies (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
EP88307542A 1987-08-18 1988-08-15 Reibungsfläche für Verpackungsfolien oder dergleichen mit Reibungsflächen Withdrawn EP0304255A3 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI873577 1987-08-18
FI873577A FI82820C (fi) 1987-08-18 1987-08-18 Friktionsyta foer foerpackningsfolie eller annan yta.

Publications (2)

Publication Number Publication Date
EP0304255A2 true EP0304255A2 (de) 1989-02-22
EP0304255A3 EP0304255A3 (de) 1990-01-31

Family

ID=8524909

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88307542A Withdrawn EP0304255A3 (de) 1987-08-18 1988-08-15 Reibungsfläche für Verpackungsfolien oder dergleichen mit Reibungsflächen

Country Status (12)

Country Link
EP (1) EP0304255A3 (de)
JP (2) JPH02501630A (de)
KR (1) KR920010542B1 (de)
CN (1) CN1031979A (de)
AU (1) AU605630B2 (de)
CA (1) CA1304633C (de)
DK (1) DK42690D0 (de)
FI (1) FI82820C (de)
IN (1) IN171719B (de)
NZ (1) NZ225857A (de)
PT (1) PT88290A (de)
WO (1) WO1989001446A1 (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999001613A1 (en) * 1997-06-30 1999-01-14 Upm-Kymmene Oyj Heat sealable cover material with friction surface
EP1529539A1 (de) * 2003-10-31 2005-05-11 Ethicon, Inc. Sterilisierungverpackung mit reibungsverstärkendem Material
US7328707B2 (en) * 1998-07-06 2008-02-12 Boston Scientific Scimed, Inc. Implant system and method for bulking tissue

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3007045B1 (fr) * 2013-06-12 2015-09-04 Endupack Feuille antiderapante
HUP1600341A2 (en) * 2016-05-26 2017-11-28 Flexinnova Kft Antislip flexible materials and methods for their making and use
HUP1600340A2 (en) 2016-05-26 2017-11-28 Flexinnova Kft Antislip, heat sealable plastic flexible packaging bag and method and apparatus for its production
CN107021284A (zh) * 2017-04-14 2017-08-08 合肥悦兰信息技术有限公司 一种医疗器械真空包装袋
CN111378307B (zh) * 2020-04-28 2022-05-06 邦弗特新材料股份有限公司 一种具有特殊凸点结构的uv涂层及其制备方法
DE102023211362A1 (de) * 2023-11-15 2025-05-15 BSH Hausgeräte GmbH Haushaltsgerätsystem mit einem Haushaltsgerät und einer Verpackung mit lokalen rutschhemmenden Bereichen

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2917223A (en) * 1955-10-19 1959-12-15 Cromwell Paper Co Non-slip bag
CH471009A (de) * 1967-03-16 1969-04-15 Achermann W Antigleit-Hilfsmittel für über- oder nebeneinander liegende Gegenstände, insbesondere für im Stapel zu transportierende und zu lagernde Verpackungen wie Schachteln usw.
FR2080004A5 (en) * 1970-02-19 1971-11-12 Johnson & Johnson Thermoplastic film or sheet with ribs for - container production
DE2008687A1 (en) * 1970-02-25 1971-09-09 Schlayer Polydress GmbH, 7410 Reut hngen Non-slip plastic foils
DE2043418A1 (en) * 1970-09-02 1972-03-16 Marburger Tapetenfabrik J.B. Schäefer GmbH &Co KG, 3570 Kirchhain Plastics strip material - with embossed pattern of foamed plastic on one or both faces
SE413077B (sv) * 1976-09-10 1980-04-14 Kraft Pak Ab Framstellning av teckningsemballage med strev yta genom sammanklistring av en plastbana och en pappersbana
FI66152C (fi) * 1977-03-21 1984-09-10 Wiik & Hoeglund Metod foer att goera foerpackningar halkfria
US4253562A (en) * 1979-07-23 1981-03-03 Vandenberg John D Display packaging for soft merchandise
CA1186863A (en) * 1981-04-21 1985-05-14 Jarl-Erik Jofs Non-slip plastic film
JPS5815497A (ja) * 1981-07-21 1983-01-28 Sharp Corp パルスモ−タの駆動方法
JPS6051871A (ja) * 1983-08-31 1985-03-23 Canon Inc 画像形成装置
SE451019B (sv) * 1984-06-06 1987-08-24 Icopal Ab Plastfolie med halkskydd och anvendning av denna som overteckningsskydd for virkestravar

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999001613A1 (en) * 1997-06-30 1999-01-14 Upm-Kymmene Oyj Heat sealable cover material with friction surface
US7328707B2 (en) * 1998-07-06 2008-02-12 Boston Scientific Scimed, Inc. Implant system and method for bulking tissue
EP1529539A1 (de) * 2003-10-31 2005-05-11 Ethicon, Inc. Sterilisierungverpackung mit reibungsverstärkendem Material

Also Published As

Publication number Publication date
AU2269988A (en) 1989-03-09
JPH07865U (ja) 1995-01-06
KR890701444A (ko) 1989-12-20
IN171719B (de) 1992-12-19
PT88290A (pt) 1989-06-30
NZ225857A (en) 1990-11-27
WO1989001446A1 (en) 1989-02-23
FI873577A0 (fi) 1987-08-18
CA1304633C (en) 1992-07-07
JPH02501630A (ja) 1990-06-07
AU605630B2 (en) 1991-01-17
DK42690A (da) 1990-02-16
DK42690D0 (da) 1990-02-16
CN1031979A (zh) 1989-03-29
FI873577L (fi) 1989-02-19
FI82820C (fi) 1991-04-25
FI82820B (fi) 1991-01-15
EP0304255A3 (de) 1990-01-31
KR920010542B1 (ko) 1992-12-05

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