NO135369B - - Google Patents
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- Publication number
- NO135369B NO135369B NO4960/73A NO496073A NO135369B NO 135369 B NO135369 B NO 135369B NO 4960/73 A NO4960/73 A NO 4960/73A NO 496073 A NO496073 A NO 496073A NO 135369 B NO135369 B NO 135369B
- Authority
- NO
- Norway
- Prior art keywords
- scratches
- carrier material
- tape
- longitudinal direction
- adhesive tape
- Prior art date
Links
- 239000000463 material Substances 0.000 claims description 24
- 239000004033 plastic Substances 0.000 claims description 14
- 239000000853 adhesive Substances 0.000 claims description 8
- 230000001070 adhesive effect Effects 0.000 claims description 8
- 239000002390 adhesive tape Substances 0.000 claims description 8
- 239000011230 binding agent Substances 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 7
- 239000004821 Contact adhesive Substances 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 claims description 3
- 238000006748 scratching Methods 0.000 claims description 3
- 230000002393 scratching effect Effects 0.000 claims description 3
- 239000012876 carrier material Substances 0.000 claims 8
- 238000007790 scraping Methods 0.000 description 3
- 239000011888 foil Substances 0.000 description 2
- 238000004806 packaging method and process Methods 0.000 description 2
- 239000004627 regenerated cellulose Substances 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 238000010292 electrical insulation Methods 0.000 description 1
- 230000000873 masking effect Effects 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
- B26D1/00—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J7/00—Adhesives in the form of films or foils
- C09J7/20—Adhesives in the form of films or foils characterised by their carriers
- C09J7/22—Plastics; Metallised plastics
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Forests & Forestry (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Adhesive Tapes (AREA)
Description
Kontaktheftende klebebånd med forbedret avrivbarhet, Contact adhesive tape with improved peelability,
samt fremgangsmåte til dets fremstilling. as well as the method for its production.
Nærværende oppfinnelse vedrorer kontakthef tende klebebånd med forbedret avrivbarhet, bestående av et bær erma ter i ale av"'strukket eller ikke strukket plastmateriale med et på dette anbragt bindemiddel. The present invention relates to contact adhesive tape with improved peelability, consisting of a carrier made of stretched or unstretched plastic material with a binder placed on it.
Kontaktheftende klebebånd eller tape fremstilles av flere forskjellige materialer for forskjellige formål, slik som kontor-bruk, emballering, maskering, elektrisk isolering m.v. Båndene består av en bærer med på denne anbragt bindemiddel. Den anvendte bærer kan utgjores av et plastmateriale, f.eks. PVC, polyester, polyolefiner, m.fl. eller av et annet baneformet materiale, slik som regenerert cellulosefolie, papir eller tek-stilmateriale. Som bindemiddel anvendes oftest klebemiddel av forskjellige slag. Contact adhesive tape or tape is made from several different materials for different purposes, such as office use, packaging, masking, electrical insulation, etc. The tapes consist of a carrier with a binder placed on it. The carrier used can be made of a plastic material, e.g. PVC, polyester, polyolefins, etc. or of another web-shaped material, such as regenerated cellulose foil, paper or tek-style material. Adhesives of various kinds are most often used as binders.
Plastmaterialene er i ikke-strukket tilstand meget toyelige, In the unstretched state, the plastic materials are very malleable,
og hvis et ikke toyelig bånd onskes, er det i dette tilfelle nodvendig at det anvendte materiale for-strekkes, f.eks. i for-holdet 1:1 - 1:3. Tykkelsen av materialet for strekkingen velges da slik at den onskede sluttykkelse fås. Det for-strukkede materiale forsynes så med hensiktsmessig bindemiddel, skjæres i lengderetningen til onsket båndbredde og opprulles til ruller av passende storrelse. and if a non-twinable band is desired, in this case it is necessary that the material used be pre-stretched, e.g. in the ratio 1:1 - 1:3. The thickness of the material for stretching is then chosen so that the desired final thickness is obtained. The pre-stretched material is then supplied with a suitable binder, cut lengthwise to the desired strip width and rolled into rolls of suitable size.
Klebebånd av vanlig type med f.eks. regenerert cellulosefolie Adhesive tape of the usual type with e.g. regenerated cellulose foil
som bærer er som kjent lette å rive av ved hjelp av konvensjo-nelle holdere, hvilke for formålet er forsynt med en tannet kant. Klebebånd av plastmateriale har derimot den ulempe at de er meget vanskelige å rive av, hvis ikke skarpe verktoy anvendes, hvilke gir en bruddanvisning slik at båndet kan rives av. Spesielt besværlig blir problemet ved bånd av plastmateri- which supports are known to be easy to tear off with the help of conventional holders, which are provided with a toothed edge for the purpose. Adhesive tapes made of plastic material, on the other hand, have the disadvantage that they are very difficult to tear off, unless sharp tools are used, which provide a break indication so that the tape can be torn off. The problem becomes particularly troublesome with bands of plastic material.
ale som er for-strukket i lengderetningen. Her er ikke bare en bruddanvisning som f.eks. perforering, tilstrekkelig for at en jevn tverravrivning skal fås, idet båndet deler seg ikke bare i tverretningen, men også mer eller mindre i lengderetningen. Dette gjor klebebåndene ubrukelige for mange av deres tilsiktede formål. ale which is pre-stretched in the longitudinal direction. Here is not just a breaking instruction such as e.g. perforation, sufficient for a uniform transverse tear to be obtained, the band splitting not only in the transverse direction, but also more or less in the longitudinal direction. This renders the adhesive tapes useless for many of their intended purposes.
.Ifolge nærværende oppfinnelse elimineres nu de foran angitte ulemper, og et klebebånd fås som er lett avrivbart i tverretningen hvor som helst langsefter sin lengde. Båndets strekk-holdfasthet nedsettes imidlertid bare ubetydelig, og ihvert- .According to the present invention, the aforementioned disadvantages are now eliminated, and an adhesive tape is obtained which is easily tearable in the transverse direction anywhere along its length. However, the tape's tensile strength is only slightly reduced, and each
f$ll aldri så langt at den kommer under de minimumsverdier som kan ansees å gjelde for forskjellige båndtyper.Oppfinnelsen vedrører et klebebånd og en fremgangsmåte som angitt i kravene. f$ll never so far that it falls below the minimum values that can be considered to apply to different types of tape. The invention relates to an adhesive tape and a method as stated in the claims.
Ifolge oppfinnelsen oppnås de angitte fordeler ved at banen av plastmateriale forsynes med i det vesentlige parallelle riper According to the invention, the specified advantages are achieved by providing the web of plastic material with essentially parallel scratches
i en retning i det vesentlige vinkelrett på båndets lengderetning. Disse riper tjener som bruddanvisninger, og de bor altså strekke seg stort sett vinkelrett på det endelige bånds lende-retning. Det er selvsagt også av betydning at ripene ligger så tett at båndet kan avrives hvor som helst langsefter sin lengde. Ripene behover ikke å ha noen betydelig dybde, idet en dybde in a direction substantially perpendicular to the longitudinal direction of the tape. These scratches serve as break indications, and they should therefore extend largely perpendicular to the longitudinal direction of the final strip. It is of course also important that the scratches are so close that the tape can be torn off anywhere along its length. The scratches need not have any significant depth, as a depth
på 2-5 um har vist seg å være 'tilstrekkelig for at de angitte fordeler skal oppnås. of 2-5 µm has been shown to be sufficient for the stated benefits to be achieved.
Det er selvsagt mulig å ripe plastmaterialet på begge sider, It is of course possible to scratch the plastic material on both sides,
men dette medforer ingen spesielle fordeler, og kan istedet på-virke strekkholdfastheten i ufordelaktig retning. but this brings no particular advantages, and can instead affect the tensile strength in an unfavorable direction.
Den nodvendige ripetetthet er avhengig av den tilsiktede endelige anvendelse for båndet, og det er innlysende at et kraftig bånd for grovere emballeringsbruk ikke behover å kunne avrives med like stor noyaktighet som et bånd for mere presisjonsbetonte anvendelser. En ripetetthet på minst 1 ripe pr. mm opptil ca. 10 pr. mm og hoyere har vist seg å være hensiktsmessig. The necessary scratch resistance depends on the intended final use for the tape, and it is obvious that a strong tape for rougher packaging use does not need to be able to tear off with as much accuracy as a tape for more precision-oriented applications. A scratch density of at least 1 scratch per mm up to approx. 10 per mm and higher have proven to be appropriate.
Som foran angitt bor ripene være stort sett vinkelrette på As stated above, the scratches should be mostly perpendicular to
båndets lengderetning. Med dette menes at deres retning så lite som mulig bor avvike fra den vinkelrette retning, og i ethvert tilfelle ikke med mer enn ca. 45°. Fortrinnsvis bor ikke avvik-elsen være storre enn ca. 30°, og helst ikke storre enn ca. 10°. the longitudinal direction of the tape. This means that their direction should deviate as little as possible from the perpendicular direction, and in any case not by more than approx. 45°. Preferably, the deviation should not be greater than approx. 30°, and preferably no greater than approx. 10°.
Det strukkede og ripede plastmateriale kan belegges med klebemiddel på den ripede eller den ikke ripede side. Det har imidlertid vist seg å være fordelaktigst å anbringe klebemiddelet på den ripede side, eftersom det da fester meget bedre og til og med gir en utmerket god vedhefting selv om materialets overflate ikke er behandlet ved hjelp av koronautladning. Denne behandling anses ellers å være nodvendig for å oppnå god vedhefting av klebemiddelet. Derved faller altså ett av prosesstrinnene ved fremstilling av kontaktheftende klebebånd hort. Ved at klebemiddelet anbringes på den ripede side elimineres også den av ripene frem-kalte lysbryting, som ellers gir båndet et grått utseende. Det belagte bånd viser ingen synlige spor av ripingen som utfores for påleggingen av klebemiddelet. The stretched and scratched plastic material can be coated with adhesive on the scratched or unscratched side. However, it has been found to be most advantageous to place the adhesive on the scratched side, since it then adheres much better and even provides an excellent adhesion even if the surface of the material has not been treated by means of corona discharge. This treatment is otherwise considered necessary to achieve good adhesion of the adhesive. Thereby, one of the process steps in the production of adhesive adhesive tape falls short. By placing the adhesive on the scratched side, the light refraction caused by the scratches is also eliminated, which otherwise gives the tape a gray appearance. The coated tape shows no visible traces of the scratching which is carried out for the application of the adhesive.
Ripingen utfores ved hjelp av et ripende verktoy, som bringes The scraping is carried out using a scraping tool, which is brought
til å passere over tverretningen av båndmaterialet. Hvis ripingen utfores mens båndmaterialet kontinuerlig mates frem, må altså verktbyet passere i tverretningen så raskt i forhold til bevegelsen i lengderetningen, at båndene blir praktisk talt vinkelrette på lengderetningen. En hensiktsmessig måte å ripe plastbanen på er å la et slipebånd under et visst trykk mot banen raskt passere denne i tverretningen, mens plastbanen for- to pass across the transverse direction of the tape material. If the scraping is carried out while the strip material is continuously fed forward, the tool city must therefore pass in the transverse direction so quickly in relation to the movement in the longitudinal direction, that the strips become practically perpendicular to the longitudinal direction. An appropriate way to scratch the plastic web is to allow a sanding belt under a certain pressure against the web to quickly pass it in the transverse direction, while the plastic web
holdsvis langsomt fores frem i lengderetningen. Slipebåndet inneholder pulver av et slipemiddel med egnet kornstorrelse, respectively slowly fed forward in the longitudinal direction. The sanding belt contains powder of an abrasive with a suitable grain size,
som av fagmannen lett kan bestemmes ved enkle forsok. Det er innlysende at også apparatur med spesielle skjære- eller rive-organ kan anordnes. Det viktige er imidlertid at ripene hele tiden ligger så tett at båndet kan rives av hvor som helst langsefter sin lengde. which can be easily determined by the person skilled in the art by simple experiments. It is obvious that equipment with special cutting or tearing means can also be arranged. The important thing, however, is that the scratches are always so close together that the tape can be torn off anywhere along its length.
Det er også mulig å anbringe ripeverktoyet slik at det fores It is also possible to position the scratching tool so that it is lined
frem i en skrå vinkel i forhold til båndmaterialets lengderet- forward at an oblique angle in relation to the longitudinal direction of the tape material
ning. Ved tilpasning av verktoyets fremforingshastighet, den skrå vinkel og båndmaterialets fremmatningshastighet til hver- nothing. By adapting the tool feed speed, the bevel angle and the band material feed speed to each
andre kan man som sluttresultat oppnå, at de utformede riper ligger vinkelrett i forhold til båndmaterialets lengderetning. others, the final result can be that the designed scratches are perpendicular to the longitudinal direction of the tape material.
Denne tilpasning kan lett gjennomfores av fagmannen. This adaptation can easily be carried out by the person skilled in the art.
Oppfinnelsen er ikke avhengig av hvilket spesielt plastmateri- The invention does not depend on which particular plastic material
ale som anvendes, eller om dette er strukket eller ikke struk- ale used, or whether this is stretched or not
ket, idet de angitte fordeler oppnås i samtlige tilfeller. Det er imidlertid innlysende at fordelene blir mest markante for strukkede plastmaterialer, da ulempene tidligere har vært storst her. ket, as the stated benefits are achieved in all cases. However, it is obvious that the advantages are most marked for stretched plastic materials, as the disadvantages have previously been greatest here.
Claims (7)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE7300292A SE382222B (en) | 1973-01-10 | 1973-01-10 | CONTACT ADHESIVE STICKER WITH IMPROVED RIPABILITY AND PROCEDURE FOR MANUFACTURE OF THIS. |
Publications (2)
Publication Number | Publication Date |
---|---|
NO135369B true NO135369B (en) | 1976-12-20 |
NO135369C NO135369C (en) | 1977-03-30 |
Family
ID=20316287
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NO4960/73A NO135369C (en) | 1973-01-10 | 1973-12-27 | CONTACT ADHESIVE ADHESIVE WITH IMPROVED RIPABILITY, AS WELL AS PROCEDURE FOR ITS MANUFACTURE. |
Country Status (11)
Country | Link |
---|---|
BE (1) | BE809459A (en) |
CA (1) | CA1033990A (en) |
CH (1) | CH588545A5 (en) |
DE (1) | DE2400629A1 (en) |
DK (1) | DK137802B (en) |
FI (1) | FI57970C (en) |
FR (1) | FR2213332B1 (en) |
GB (1) | GB1429451A (en) |
NL (1) | NL7400123A (en) |
NO (1) | NO135369C (en) |
SE (1) | SE382222B (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5626928A (en) * | 1990-10-11 | 1997-05-06 | R.A. Adhesive Products Limited | Adhesive in the form of a film |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3663343A (en) * | 1970-05-11 | 1972-05-16 | By Buk Co | Composite pressure sensitive adhesive sheet structure and process of making the same |
-
1973
- 1973-01-10 SE SE7300292A patent/SE382222B/en unknown
- 1973-12-27 NO NO4960/73A patent/NO135369C/en unknown
-
1974
- 1974-01-03 GB GB29274A patent/GB1429451A/en not_active Expired
- 1974-01-04 NL NL7400123A patent/NL7400123A/xx not_active Application Discontinuation
- 1974-01-04 DK DK5374AA patent/DK137802B/en unknown
- 1974-01-07 FI FI35/74A patent/FI57970C/en active
- 1974-01-07 BE BE139575A patent/BE809459A/en unknown
- 1974-01-08 DE DE2400629A patent/DE2400629A1/en not_active Withdrawn
- 1974-01-08 FR FR7400549A patent/FR2213332B1/fr not_active Expired
- 1974-01-08 CA CA189,695A patent/CA1033990A/en not_active Expired
- 1974-01-09 CH CH25474A patent/CH588545A5/xx not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
FR2213332A1 (en) | 1974-08-02 |
CH588545A5 (en) | 1977-06-15 |
DK137802C (en) | 1978-10-09 |
FI57970C (en) | 1980-11-10 |
DE2400629A1 (en) | 1974-07-11 |
NO135369C (en) | 1977-03-30 |
FR2213332B1 (en) | 1977-08-26 |
FI57970B (en) | 1980-07-31 |
BE809459A (en) | 1974-05-02 |
GB1429451A (en) | 1976-03-24 |
SE382222B (en) | 1976-01-19 |
NL7400123A (en) | 1974-07-12 |
CA1033990A (en) | 1978-07-04 |
DK137802B (en) | 1978-05-08 |
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