CA2000365A1 - Adhesive paper tapes - Google Patents
Adhesive paper tapesInfo
- Publication number
- CA2000365A1 CA2000365A1 CA002000365A CA2000365A CA2000365A1 CA 2000365 A1 CA2000365 A1 CA 2000365A1 CA 002000365 A CA002000365 A CA 002000365A CA 2000365 A CA2000365 A CA 2000365A CA 2000365 A1 CA2000365 A1 CA 2000365A1
- Authority
- CA
- Canada
- Prior art keywords
- paper
- adhesive
- mean
- tape according
- tape
- 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.)
- Abandoned
Links
Classifications
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H27/00—Special paper not otherwise provided for, e.g. made by multi-step processes
-
- 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
- C09J7/21—Paper; Textile fabrics
-
- 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
- C09J2400/00—Presence of inorganic and organic materials
- C09J2400/20—Presence of organic materials
- C09J2400/28—Presence of paper
- C09J2400/283—Presence of paper in the substrate
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Adhesive Tapes (AREA)
- Paper (AREA)
- Wrappers (AREA)
Abstract
Abstract Adhesive paper tape, obtainable by impregnating and coating, by means of processes known per se, a paper which, immediately after the production process and still in the moist state, has been compressed between a rotat-ing roller and a rotating elastic web, and dried, or a paper which has been produced analogously to the Clupak process, or a paper which has a texture corresponding to that of the "Clupak brand of extensible papers" and which has - a mean weight of 45 - 80 g/m2, - a mean extensibility of 8 - 20%
- a mean maximum tensile strength of at least 35 N/15 mm and - a mean thickness of at most 0.13 mm.
- a mean maximum tensile strength of at least 35 N/15 mm and - a mean thickness of at most 0.13 mm.
Description
BEIERSDORF AG ~()5 ~
DESCRIP~ION
Adhe~ive paper ~ape~
The in~ention relates to adhesive paper tapes.
Adhesive paper tape~, which are nowadays used for the most diverse purposes ~painting~decorating masking tapes, high-temperature masking tape~, adhesive packaging tapes for electronic components, adhe~ive surface protec-tion tapes, adhe~ive packaging tape~, and the like)~ have the following di~advantagess - They are rough. The user, in particular a professional user, who mu~t frequently press these adhesive tape~
against thP substrate or rub them down, can ~uffer in~uries to the finger tips.
- Since a large quantity of adhe~ive, prLmer and release coat is used exclu~ively ~or ~illing tha crape ~old~ and, moreover, the finished adhe~ive tapes are ~hort-life products, the enYironment 1~ unnece~sarily polluted during disposal. ~part from this, the fabrication is extremely uneconomical.
- In the long-establi~hed crêping proce~ , a ~ ill moi3t paper web i~ cau~ed ~o $mpinge on a ~r~ping doctor. Thi3 produces the typical cr~pe folds and the pApers become thicker. Thick paper~ are, however, di~advantageous ~or some applications, for example adhesive masking in painting, since ~he height of the paint edge depend~ on tha thickness of ~he masking adhe~ive tape. A ~irtually invisible low paint edge is desired.
For a long time, there ha~ therefore been a demand ~or an adhesive paper tape which i~ as smooth a~
possible but nevertheles~ meet~ ~he ~ppli~ation tech-nology requirement~. ~
Paper and adhesiYe tape expert~ throughout ~he world ara endeavouring ~o o~erco~e the~e drawback~. One :
.
, .:
~ 3~
approach followed by many i~ the use of exten~ible, uncr~ped paper3, a~ de3cribed in US 3,503,594. In thi~
ca~e, the paper is pa~sed through between a ~teel/stone cylinder and a rubber-coated roller. A kind of cr~ping (superfine crêping) is obtained a~ a result o~ the different angular velocity of the two rollers. At the same tLme, the paper is compressed by the pres~ure of the rubber-coated roller and thus becomes les~ thicX. How-ever, such paper carriers have not been able ~o gain acceptance in practice and, even 18 years a~ter this US
patent was granted, the paper carriers of the commer-cially available adhesive paper tapes are produced.by the crêping doctor process~ This demon~trates that ~he extensibility range obtainable according to thi~ US
patent doe~ not meet, or does not adequately meet, the requirements of the application.
I Another approach is to reduce ~he paper weight.
An exampla of this attempt i~ a crêped paper made by Gessner, ~ruckm~hl, which has been on the market for a few years and ha~ the following properties:
- mean weight 40 g/m2 - mean thickness 0.12 0.13 mm - mean maximum tensile strength 38 N/15 mm - mean exten~ibility 11 - 15%
In commercially available adhesive paper tapes, the quantity of impregnating agent is usually about 50 - 6~% by weight of ~he raw fibre weight~ (In US 3,503,495, even 80% by weight of introduced Lmpreg-nating agent is mentioned). The lowex limit, when ex-ploiting all proce~s engineering refinements, would probably be 35% by weight. Even the paper made by Gessner proves to be ~uitable for the fu~her refining s~ages only with an introduction o~ a~ lea~t 55% by weight of impregnating agen~.
A crape paper produced ~y the cr~ping doctor proces~ shows, on one side, sharply pronounced cr~pe ~old~, but rounded cr~pe fold~ on ~he other ~ide. In order to give an impre~ion o~ les~ roughne~Y ~o a user, the ~ide having ~hs rounded ~ol~ing i3 a~ a rule provided ~n~
-with relea~e coat. Neverthele~s, the required quantity of relea~e coat normally amount~ to 6 -- 8 g/m~, ~inca a considerable part of the relea~e coat, still liquid (dissolved or disper~ed) during coating, flow~ into the spaces between the folds.
The same applies to an even greater extent to the primer, in particular since the latter i4 in mo~t cases applied to the rougher side.
Rough substra~es are also disadvantageous to the application of th~ adhesive composition, but the quantity of adhesive composition is also determined by factors other than the cr~pe folds alone.
It was thu~ the ob~ect to develop adhesive paper tapes without the obvious defects of the state of the art, and a process for the production thereof.
According to the i~vention, this object i~
achieved by microcrêped, impregnated and coated paper, including the "Clupak brand of exten~ible paper~ as expre3~ed in US 3,503,495. The coating materials can be selected from the group ~omprising primers, adhesive-repellent substances (relea~e coats) and self-adhesive compositions.
Nicrocraped papers, whi~h are known per ~e, are not produced in the conventional manner by means of craping doctor~ and show no cr~pe folds. Rather, the~e paper~ show - clearly visi~le only in magnification - an extremely fine fold pattern which i~ intertwined in many different ways and which can mo~t easily be compared with human fingerpxints. ~hey can be pro~uced by transporting moist paper webs between rotating rollers and rotating elastic web~ with contact pre~sure. In thi~ way, the paper webs are longitudinally compres~ed. Neverth~le~s, thin papers ~markedly thinner than 0.10 mm~ are obtain-able by thi~ proce3~, a~ described, ~or ~xample, in US 2,624,24~.
It ha~ been a~umed for a long time that micro-cr~ped paper of thi3 type cannot be proee~ed into adhesive paper ~apes (for ~xample VS 3,503,495, column 4, line 71 to column 5, line 20), ~ince ~bsorbenk paper .
~ . . :
- : .
;~S) ~ a~ fi q~J
would either ~ear when pa~3ed through the coating 3ystem or be no longer exten~ible after the coating process.
~ stoni hingly, ab~orbent microcrêped paper which have been produced by the process de~cribed above or S analogously thereto, or have a texture like the "Clupak brand o~ extensible pap~r3", and have the parameters - mean weight: 45~80 g/m2 - mean extensibility: 8-20~
- mean maximum tensile at lea~t 35 N115 mm strength:
- mean thickness: at mo~t 0.13 mm, are aasy to impregnate and to coat with primer, release coat and self-adhesive composition, without the pre~udi ces described becoming manife~. Moreover, the products fabricated in ~his way are markedly ~uperior to the conventional adhesive paper tapes.
Those papers are advantageous which are at most 0.12 mm thick at a weight of 70 - 80 g/m2.
Preferably, paper~ having the parameters - mean weight: 50~60 g/m~
- mean exten3ibility: 12-17~
- mean maximum tensile at least 35 N/15 mm ~trength:
- mean thickness: at most 0.10 mm, are selected.
Noreover, it i~ advantageou3 to use papers which are sufficiently impregnated already at an impregnating agent introduction of 15~, relative to the weigh~ of the raw paper.
With~n the Ycope of the ln~en~ion, the paper thickne~ and the paper weight can be Yaried in such a way that the most diver~e field~ of application are covered. Thu~, a heavy ~ape i~ advantageously ~ultable a~
a packaging tape for electronic components. A ligh~, thin tape i~ out~tandingly suitable a~ an adhe~ive masking tape for painting work.
Suitable impregnating agent~ are in principle all commerically a~aila~l~ compo~ition~, and preferably polyacrylate-containing disper~ion3 or SBR la~ex are '.
, -:
, , '' ' - s -u~ed, for example Acronal 590D (~ASF) or Butofan 490D
(sASF). Polyvinyl acetate latice~ are al~o suitable. It can be advan~ageou~ ~o admix s~abilizers to the impreg-nating agent.
S The selection of the primer, of the release coat and of the adhesive compositions is not critical.
Suitable release coat~ are preferably polyacrylates such a~ PrLmal 253 (Rohm ~ Haas), SBR latice~, polyvinyl aceta~es, silicones or fluorohydrocarbons.
Preferably, centrifuged latices, particularly preferably mixed with the conventional s~abilizers, are selected as ~he prLmers.
Advantageous adhesive composition~ are poly-acrylates, SIS rubbers, SBS rubbers, polyisobutylenes and natural rubbers, each in con~unction with natural or synthetic resins.
Final making-up i~ carried out by impregna~ing the microcr~ped paper with the impregnating agent and then coating it. Advantageously, adhesi~e tape~ are coated on one side or on both side~ with the primer composition and pro~ided, on one side with a final layer of adhe~ive-repellent ~ubstance (release coat) and, on the othar side, with a final layer o~ a self-adhesive composition.
The finally mad~-up paper can then be rolled up on tube~ and packaged.
~- Cutting to 8ize iS carried out before or after final make-up, depending on the requirement~ and the technical condition~.
Example 1 In ~hi~ example, a general-purpose adhesive tape i~ described which can be u~ed a~ a packaging ~ape for electronic component~, as high-temperature masking tape and as normal painting/decorating adhe-qive ~ap~.
The carrier used ~ a paper produced by a pro~e~
analogous to the Clupak proce~ and ha~ing ~he following characteri~tic propertie~
- mean weight 5605~g/~2 - mean thickn~s~ 0.09 mm :'~
... .
znn~ fi~
- mean maximum ~ensile strength 48 N/15 mm - mean exten~ibility 17 i 2~.
A quantity of impregnating agent which is adeqsate for the subsequent processing ~tages, but also from applica~ion technology aspects, was reached a~ 8 g/m2, that is to say 14.2% by weigh~ relative to the raw paper weight. The impregnating agent used was Acronal SOOD. Commercially available centrifuged latex ~erved as the primer. The quantity of release coat can be reduced to 1 - 2 g/m2 without difficulties and without lo~s of release properties.
The thickness of the fini3hed adhesive tape i~
O.11 - O.115 mm. The maximum tensile strength i~ -74 N/lS mm and, at 15 - 19%, the ~xtension corresponds to that of the raw paper.
In spite o the high exten~ion value~, the adhesive paper tape according to the invention i8 almost as smooth as uncr~ped papers, and the smoothness quality wa~ also greatly improved by the process according to the invention.
2xampl~ 2 In this example, an adheYive tape is described which can be used as a general-purpose pain~ing/decorat-ing adhesive tape.
The carrier used is again a paper produced by a proce~s analogous to the Clupak process and having the following characteristic properties:
- mean weight 55.6 ~/m2 - mean thicknes~ 0.09 mm - mean maximum tensile strength 49.6 ~/15 mm `- mean extensibility 15 + 1%.
The optimum quantity of impregnating agent wa~
found to be 15 - 18 g/m2. This corresponds to 30% by weight, relative to the raw paper weightO Here again, Acronal 500D wa~ used a~ the impregnating agent~ Commer-cially ~vailable centrifuged latex served as ~he prim~r.
The quantity of relea~e coat (Primal 2533 can likewi~e be reduced to 1 - 2 g/m2 without difficulties and without lo~s of relea~e propertie~ in a release ;
. ' ' .
~!?'(~ fi~
- 7 _ system analogous to that in Example lo The ~ini~hed adhesive ~ape with a ~tandard polyisobutylene adhesive composition ha~ a thickne~ of only 0.125 - 0.135 mm at an adhesive composition weight of 55 g/m2. The maxLmum ten~ile strength is 73.5 ~/15 mm and, at 15 - 16~, the exten~ion corresponds to the raw paper.
- , .
- . ~ . :
.
DESCRIP~ION
Adhe~ive paper ~ape~
The in~ention relates to adhesive paper tapes.
Adhesive paper tape~, which are nowadays used for the most diverse purposes ~painting~decorating masking tapes, high-temperature masking tape~, adhesive packaging tapes for electronic components, adhe~ive surface protec-tion tapes, adhe~ive packaging tape~, and the like)~ have the following di~advantagess - They are rough. The user, in particular a professional user, who mu~t frequently press these adhesive tape~
against thP substrate or rub them down, can ~uffer in~uries to the finger tips.
- Since a large quantity of adhe~ive, prLmer and release coat is used exclu~ively ~or ~illing tha crape ~old~ and, moreover, the finished adhe~ive tapes are ~hort-life products, the enYironment 1~ unnece~sarily polluted during disposal. ~part from this, the fabrication is extremely uneconomical.
- In the long-establi~hed crêping proce~ , a ~ ill moi3t paper web i~ cau~ed ~o $mpinge on a ~r~ping doctor. Thi3 produces the typical cr~pe folds and the pApers become thicker. Thick paper~ are, however, di~advantageous ~or some applications, for example adhesive masking in painting, since ~he height of the paint edge depend~ on tha thickness of ~he masking adhe~ive tape. A ~irtually invisible low paint edge is desired.
For a long time, there ha~ therefore been a demand ~or an adhesive paper tape which i~ as smooth a~
possible but nevertheles~ meet~ ~he ~ppli~ation tech-nology requirement~. ~
Paper and adhesiYe tape expert~ throughout ~he world ara endeavouring ~o o~erco~e the~e drawback~. One :
.
, .:
~ 3~
approach followed by many i~ the use of exten~ible, uncr~ped paper3, a~ de3cribed in US 3,503,594. In thi~
ca~e, the paper is pa~sed through between a ~teel/stone cylinder and a rubber-coated roller. A kind of cr~ping (superfine crêping) is obtained a~ a result o~ the different angular velocity of the two rollers. At the same tLme, the paper is compressed by the pres~ure of the rubber-coated roller and thus becomes les~ thicX. How-ever, such paper carriers have not been able ~o gain acceptance in practice and, even 18 years a~ter this US
patent was granted, the paper carriers of the commer-cially available adhesive paper tapes are produced.by the crêping doctor process~ This demon~trates that ~he extensibility range obtainable according to thi~ US
patent doe~ not meet, or does not adequately meet, the requirements of the application.
I Another approach is to reduce ~he paper weight.
An exampla of this attempt i~ a crêped paper made by Gessner, ~ruckm~hl, which has been on the market for a few years and ha~ the following properties:
- mean weight 40 g/m2 - mean thickness 0.12 0.13 mm - mean maximum tensile strength 38 N/15 mm - mean exten~ibility 11 - 15%
In commercially available adhesive paper tapes, the quantity of impregnating agent is usually about 50 - 6~% by weight of ~he raw fibre weight~ (In US 3,503,495, even 80% by weight of introduced Lmpreg-nating agent is mentioned). The lowex limit, when ex-ploiting all proce~s engineering refinements, would probably be 35% by weight. Even the paper made by Gessner proves to be ~uitable for the fu~her refining s~ages only with an introduction o~ a~ lea~t 55% by weight of impregnating agen~.
A crape paper produced ~y the cr~ping doctor proces~ shows, on one side, sharply pronounced cr~pe ~old~, but rounded cr~pe fold~ on ~he other ~ide. In order to give an impre~ion o~ les~ roughne~Y ~o a user, the ~ide having ~hs rounded ~ol~ing i3 a~ a rule provided ~n~
-with relea~e coat. Neverthele~s, the required quantity of relea~e coat normally amount~ to 6 -- 8 g/m~, ~inca a considerable part of the relea~e coat, still liquid (dissolved or disper~ed) during coating, flow~ into the spaces between the folds.
The same applies to an even greater extent to the primer, in particular since the latter i4 in mo~t cases applied to the rougher side.
Rough substra~es are also disadvantageous to the application of th~ adhesive composition, but the quantity of adhesive composition is also determined by factors other than the cr~pe folds alone.
It was thu~ the ob~ect to develop adhesive paper tapes without the obvious defects of the state of the art, and a process for the production thereof.
According to the i~vention, this object i~
achieved by microcrêped, impregnated and coated paper, including the "Clupak brand of exten~ible paper~ as expre3~ed in US 3,503,495. The coating materials can be selected from the group ~omprising primers, adhesive-repellent substances (relea~e coats) and self-adhesive compositions.
Nicrocraped papers, whi~h are known per ~e, are not produced in the conventional manner by means of craping doctor~ and show no cr~pe folds. Rather, the~e paper~ show - clearly visi~le only in magnification - an extremely fine fold pattern which i~ intertwined in many different ways and which can mo~t easily be compared with human fingerpxints. ~hey can be pro~uced by transporting moist paper webs between rotating rollers and rotating elastic web~ with contact pre~sure. In thi~ way, the paper webs are longitudinally compres~ed. Neverth~le~s, thin papers ~markedly thinner than 0.10 mm~ are obtain-able by thi~ proce3~, a~ described, ~or ~xample, in US 2,624,24~.
It ha~ been a~umed for a long time that micro-cr~ped paper of thi3 type cannot be proee~ed into adhesive paper ~apes (for ~xample VS 3,503,495, column 4, line 71 to column 5, line 20), ~ince ~bsorbenk paper .
~ . . :
- : .
;~S) ~ a~ fi q~J
would either ~ear when pa~3ed through the coating 3ystem or be no longer exten~ible after the coating process.
~ stoni hingly, ab~orbent microcrêped paper which have been produced by the process de~cribed above or S analogously thereto, or have a texture like the "Clupak brand o~ extensible pap~r3", and have the parameters - mean weight: 45~80 g/m2 - mean extensibility: 8-20~
- mean maximum tensile at lea~t 35 N115 mm strength:
- mean thickness: at mo~t 0.13 mm, are aasy to impregnate and to coat with primer, release coat and self-adhesive composition, without the pre~udi ces described becoming manife~. Moreover, the products fabricated in ~his way are markedly ~uperior to the conventional adhesive paper tapes.
Those papers are advantageous which are at most 0.12 mm thick at a weight of 70 - 80 g/m2.
Preferably, paper~ having the parameters - mean weight: 50~60 g/m~
- mean exten3ibility: 12-17~
- mean maximum tensile at least 35 N/15 mm ~trength:
- mean thickness: at most 0.10 mm, are selected.
Noreover, it i~ advantageou3 to use papers which are sufficiently impregnated already at an impregnating agent introduction of 15~, relative to the weigh~ of the raw paper.
With~n the Ycope of the ln~en~ion, the paper thickne~ and the paper weight can be Yaried in such a way that the most diver~e field~ of application are covered. Thu~, a heavy ~ape i~ advantageously ~ultable a~
a packaging tape for electronic components. A ligh~, thin tape i~ out~tandingly suitable a~ an adhe~ive masking tape for painting work.
Suitable impregnating agent~ are in principle all commerically a~aila~l~ compo~ition~, and preferably polyacrylate-containing disper~ion3 or SBR la~ex are '.
, -:
, , '' ' - s -u~ed, for example Acronal 590D (~ASF) or Butofan 490D
(sASF). Polyvinyl acetate latice~ are al~o suitable. It can be advan~ageou~ ~o admix s~abilizers to the impreg-nating agent.
S The selection of the primer, of the release coat and of the adhesive compositions is not critical.
Suitable release coat~ are preferably polyacrylates such a~ PrLmal 253 (Rohm ~ Haas), SBR latice~, polyvinyl aceta~es, silicones or fluorohydrocarbons.
Preferably, centrifuged latices, particularly preferably mixed with the conventional s~abilizers, are selected as ~he prLmers.
Advantageous adhesive composition~ are poly-acrylates, SIS rubbers, SBS rubbers, polyisobutylenes and natural rubbers, each in con~unction with natural or synthetic resins.
Final making-up i~ carried out by impregna~ing the microcr~ped paper with the impregnating agent and then coating it. Advantageously, adhesi~e tape~ are coated on one side or on both side~ with the primer composition and pro~ided, on one side with a final layer of adhe~ive-repellent ~ubstance (release coat) and, on the othar side, with a final layer o~ a self-adhesive composition.
The finally mad~-up paper can then be rolled up on tube~ and packaged.
~- Cutting to 8ize iS carried out before or after final make-up, depending on the requirement~ and the technical condition~.
Example 1 In ~hi~ example, a general-purpose adhesive tape i~ described which can be u~ed a~ a packaging ~ape for electronic component~, as high-temperature masking tape and as normal painting/decorating adhe-qive ~ap~.
The carrier used ~ a paper produced by a pro~e~
analogous to the Clupak proce~ and ha~ing ~he following characteri~tic propertie~
- mean weight 5605~g/~2 - mean thickn~s~ 0.09 mm :'~
... .
znn~ fi~
- mean maximum ~ensile strength 48 N/15 mm - mean exten~ibility 17 i 2~.
A quantity of impregnating agent which is adeqsate for the subsequent processing ~tages, but also from applica~ion technology aspects, was reached a~ 8 g/m2, that is to say 14.2% by weigh~ relative to the raw paper weight. The impregnating agent used was Acronal SOOD. Commercially available centrifuged latex ~erved as the primer. The quantity of release coat can be reduced to 1 - 2 g/m2 without difficulties and without lo~s of release properties.
The thickness of the fini3hed adhesive tape i~
O.11 - O.115 mm. The maximum tensile strength i~ -74 N/lS mm and, at 15 - 19%, the ~xtension corresponds to that of the raw paper.
In spite o the high exten~ion value~, the adhesive paper tape according to the invention i8 almost as smooth as uncr~ped papers, and the smoothness quality wa~ also greatly improved by the process according to the invention.
2xampl~ 2 In this example, an adheYive tape is described which can be used as a general-purpose pain~ing/decorat-ing adhesive tape.
The carrier used is again a paper produced by a proce~s analogous to the Clupak process and having the following characteristic properties:
- mean weight 55.6 ~/m2 - mean thicknes~ 0.09 mm - mean maximum tensile strength 49.6 ~/15 mm `- mean extensibility 15 + 1%.
The optimum quantity of impregnating agent wa~
found to be 15 - 18 g/m2. This corresponds to 30% by weight, relative to the raw paper weightO Here again, Acronal 500D wa~ used a~ the impregnating agent~ Commer-cially ~vailable centrifuged latex served as ~he prim~r.
The quantity of relea~e coat (Primal 2533 can likewi~e be reduced to 1 - 2 g/m2 without difficulties and without lo~s of relea~e propertie~ in a release ;
. ' ' .
~!?'(~ fi~
- 7 _ system analogous to that in Example lo The ~ini~hed adhesive ~ape with a ~tandard polyisobutylene adhesive composition ha~ a thickne~ of only 0.125 - 0.135 mm at an adhesive composition weight of 55 g/m2. The maxLmum ten~ile strength is 73.5 ~/15 mm and, at 15 - 16~, the exten~ion corresponds to the raw paper.
- , .
- . ~ . :
.
Claims (9)
1. Adhesive paper tape, obtainable by impregnating and coating, by means of processes known per se, a paper which, immediately after the production process and still in the moist state, has been compressed between a rotat-ing roller and a rotating elastic web, and dried, or a paper which has been produced analogously to the Clupak process, or a paper which has a texture corresponding to that of the "Clupak brand of extensible papers" and which has - a mean weight of 45 - 80 g/m2, - a mean extensibility of 8 - 20%, - a mean maximum tensile strength of at least 35 N/15 mm and - a mean thickness of at most 0.13 mm.
2. Adhesive paper tape according to Claim 1, charac-terized in that, after impregnation, the paper is coated on one side or on both sides with a primer composition and is provided, on one side, with a final layer of adhesive-repellent substance (release coat) and, on the other side, with a final layer of a self-adhesive composition.
3. Adhesive paper tape according to Claim 1 or 2, characterized in that the paper has - a mean weight of 50 - 60 g/m2, - a mean extensibility of 12 - 17%, - a mean maximum tensile strength of at least 35 N/15 mm and - a mean thickness of at most 0.10 mm.
4. Adhesive paper tape according to Claim 1, 2 or 3, characterized in that the impregnating agent is selected from the group comprising - polyacrylates - SBR latices and - polyvinyl acetate latices.
5. Adhesive paper tape according to one of Claims 1 - 4, characterized in that the release coats are selected from the group comprising the polyacrylates, SBR
latices, polyvinyl acetates, silicones and fluorohydrocarbons.
latices, polyvinyl acetates, silicones and fluorohydrocarbons.
6. Adhesive paper tape according to one of Claims 1 - 5, characterized in that the primers are selected from the group comprising the centrifuged latices.
Adhesive paper tape according to one of Claims 1 - 6, characterized in that the self-adhesive composi-tions are selected from the group comprising the - SIS rubbers, - SBS rubbers, - polyacrylates, - polyisobutylenes and - natural rubbers, each in conjunction with natural and/or synthetic resins.
8. Process for producing an adhesive paper tape according to one of Claims 1 - 7, characterized in that a paper which, immediately after the production process and still in the moist state, has been compressed with a rotating roller and a rotating elastic web, and dried, or a paper which has been produced analogously to the Clupak process, or a paper which has a texture corresponding to that of the "Clupak brand of extensible papers" and which has - a mean weight of 45 - 80 g/m2, - a mean extensibility of 8 - 20%
- a mean maximum tensile strength of at least 35 N/15 mm and - a mean thickness of at most 0.13 mm, is impregnated and coated, the coating materials being selected from the group comprising primers, adhesive repellent substances (release coats) and self-adhesive compositions.
- a mean maximum tensile strength of at least 35 N/15 mm and - a mean thickness of at most 0.13 mm, is impregnated and coated, the coating materials being selected from the group comprising primers, adhesive repellent substances (release coats) and self-adhesive compositions.
9. Use of an adhesive paper tape according to one of Claims 1 - 7 a an - adhesive tape, - packaging tape for small component - masking tape, - insulating tape - sealing tape.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE3835507A DE3835507A1 (en) | 1988-10-19 | 1988-10-19 | PAPIERKLEBEBAENDER |
| DEP3835507.8 | 1988-10-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2000365A1 true CA2000365A1 (en) | 1990-04-19 |
Family
ID=6365401
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002000365A Abandoned CA2000365A1 (en) | 1988-10-19 | 1989-10-10 | Adhesive paper tapes |
Country Status (6)
| Country | Link |
|---|---|
| EP (1) | EP0367965B1 (en) |
| JP (1) | JP2728220B2 (en) |
| AT (1) | ATE99751T1 (en) |
| CA (1) | CA2000365A1 (en) |
| DE (2) | DE3835507A1 (en) |
| ES (1) | ES2048803T3 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5496601A (en) * | 1994-02-14 | 1996-03-05 | Minnesota Mining And Manufacturing Company | Extensible flatback adhesive sheet |
Families Citing this family (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4211510C2 (en) * | 1992-04-06 | 1996-12-05 | Gessner & Co Gmbh | Recyclable printable packaging tape paper |
| JPH06264040A (en) * | 1993-03-17 | 1994-09-20 | Sekisui Chem Co Ltd | Self-adhesive kraft tape |
| DE4330362A1 (en) * | 1993-09-08 | 1995-03-09 | Beiersdorf Ag | Using a paper carrier |
| US5385783A (en) * | 1993-09-08 | 1995-01-31 | Tesa Tape Inc. | High temperature-resistant masking tape |
| ES2155235T3 (en) * | 1997-01-07 | 2001-05-01 | Beiersdorf Ag | SELF-ADHESIVE PROTECTIVE TAPE. |
| DE10120148A1 (en) * | 2001-04-25 | 2003-02-27 | Tesa Ag | Stretchable masking tape |
| DE10316995A1 (en) * | 2003-04-11 | 2004-11-18 | Tesa Ag | Masking tape |
| DE102008034371A1 (en) | 2008-07-23 | 2010-01-28 | Tesa Se | paper tape |
| DE102009019849A1 (en) * | 2009-04-17 | 2010-10-21 | Tesa Se | Carrier material for pressure-sensitive adhesive tapes and process for its production |
| DE102009054955A1 (en) | 2009-09-18 | 2011-03-24 | Tesa Se | Adhesive tape with an adhesive based on acrylic esters |
| EP2386614A1 (en) | 2010-04-21 | 2011-11-16 | Neenah Gessner GmbH | Environmentally friendly adhesive tape paper and adhesive paper made from same |
| DE202010005924U1 (en) | 2010-04-21 | 2010-07-29 | Neenah Gessner Gmbh | Environmentally friendly adhesive tape and tape made from it |
| DE102010063597A1 (en) * | 2010-12-20 | 2012-06-21 | Tesa Se | Use (and preparation) of a creped polylactic acid film |
| DE102011085223A1 (en) | 2011-10-26 | 2013-05-02 | Tesa Se | Bio-based natural rubber compound and its use |
| DE102012207868A1 (en) | 2012-05-11 | 2013-11-14 | Tesa Se | Pressure-sensitive adhesive composition, useful in single- or double-sided adhesive tape and as a masking tape for temporarily covering a substrate, comprises natural rubber and/or adhesive resins as base polymer, and lignin |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB643413A (en) * | 1947-05-22 | 1950-09-20 | Minnesota Mining & Mfg | Improvements in or relating to adhesive-treated crepe paper and methods of making the same |
| FR1150746A (en) * | 1959-02-24 | 1958-01-17 | Henri Pouyet Ets | Improvement in connection boxes for electrical pipes, more specifically for field cables |
| US3483018A (en) * | 1966-11-07 | 1969-12-09 | Johnson & Johnson | Extensible adhesive tape |
| DE2809422C3 (en) * | 1978-03-04 | 1980-09-11 | Beiersdorf Ag, 2000 Hamburg | Process for the production of a stretchable, smooth or creped paper with high resistance to picking and splitting and its use as a carrier material for pressure-sensitive adhesive layers |
| JPS56400A (en) * | 1979-06-09 | 1981-01-06 | Tokai Pulp Kk | Antiislip paper and processed product |
| DE3015733C2 (en) * | 1980-04-24 | 1982-07-01 | Beiersdorf Ag, 2000 Hamburg | Process for the production of impregnated smooth or creped papers in one operation on the paper machine and their use as carrier material for pressure-sensitive adhesive layers |
| US4849278A (en) * | 1985-08-27 | 1989-07-18 | Kimberly-Clark Corporation | Flexible, durable, stretchable paper base web |
-
1988
- 1988-10-19 DE DE3835507A patent/DE3835507A1/en not_active Withdrawn
-
1989
- 1989-09-26 ES ES89117725T patent/ES2048803T3/en not_active Expired - Lifetime
- 1989-09-26 AT AT89117725T patent/ATE99751T1/en not_active IP Right Cessation
- 1989-09-26 DE DE89117725T patent/DE58906638D1/en not_active Expired - Fee Related
- 1989-09-26 EP EP89117725A patent/EP0367965B1/en not_active Expired - Lifetime
- 1989-10-10 CA CA002000365A patent/CA2000365A1/en not_active Abandoned
- 1989-10-17 JP JP1268303A patent/JP2728220B2/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5496601A (en) * | 1994-02-14 | 1996-03-05 | Minnesota Mining And Manufacturing Company | Extensible flatback adhesive sheet |
Also Published As
| Publication number | Publication date |
|---|---|
| EP0367965A2 (en) | 1990-05-16 |
| JPH02158678A (en) | 1990-06-19 |
| JP2728220B2 (en) | 1998-03-18 |
| EP0367965B1 (en) | 1994-01-05 |
| ATE99751T1 (en) | 1994-01-15 |
| DE3835507A1 (en) | 1990-04-26 |
| EP0367965A3 (en) | 1991-07-24 |
| DE58906638D1 (en) | 1994-02-17 |
| ES2048803T3 (en) | 1994-04-01 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| FZDE | Discontinued |