EP1129791A2 - Procédé pour fabriquer des revêtements antiadhésifs - Google Patents

Procédé pour fabriquer des revêtements antiadhésifs Download PDF

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Publication number
EP1129791A2
EP1129791A2 EP01103042A EP01103042A EP1129791A2 EP 1129791 A2 EP1129791 A2 EP 1129791A2 EP 01103042 A EP01103042 A EP 01103042A EP 01103042 A EP01103042 A EP 01103042A EP 1129791 A2 EP1129791 A2 EP 1129791A2
Authority
EP
European Patent Office
Prior art keywords
adhesive
web
plasma
adhesive layers
low
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.)
Granted
Application number
EP01103042A
Other languages
German (de)
English (en)
Other versions
EP1129791A3 (fr
EP1129791B1 (fr
Inventor
Olaf Dr. Görbig
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.)
Tesa SE
Original Assignee
Beiersdorf AG
Tesa SE
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 Beiersdorf AG, Tesa SE filed Critical Beiersdorf AG
Publication of EP1129791A2 publication Critical patent/EP1129791A2/fr
Publication of EP1129791A3 publication Critical patent/EP1129791A3/fr
Application granted granted Critical
Publication of EP1129791B1 publication Critical patent/EP1129791B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D1/00—Processes for applying liquids or other fluent materials
    • B05D1/62—Plasma-deposition of organic layers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D5/00—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures
    • B05D5/08—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures to obtain an anti-friction or anti-adhesive surface

Definitions

  • the invention relates to a method for producing anti-adhesive coatings on a web-shaped material and the use of anti-adhesive coatings, especially with adhesive tapes.
  • Anti-adhesive layers against pressure-sensitive adhesives are used on sheet-like materials, for example on adhesive tapes or release materials, in order to achieve adequate reversibility of an adhesive bond. This is often particularly problematic in the case of adhesive tapes, since in general special separating forces and residue-free detachment between the adhesive and the back of the backing or separating material are required. In addition, in many cases there should be no material transfer, in particular no silicone transfer, from the anti-adhesive coating to the adhesive compared to PSAs.
  • Anti-adhesive layers against PSAs can be used, for example, as wet chemical Coating from solution (solvent or water) is applied, a subsequent drying and / or crosslinking is necessary.
  • This networking can be done, for example, thermally or by radiation.
  • anti-adhesive layers against PSAs which are wet-chemical applied usually entails high costs because of the equipment of the sheet material with a primer a complete additional Coating process means.
  • Another problem is when a certain separation force, for example of an adhesive film on its own back with none of the known methods can be achieved economically.
  • the adhesives produced in this way show anti-adhesives Layers generally transfer a material onto the adhesive that is in them with Contact comes.
  • Low-pressure plasma polymerization is not used to produce PSAs anti-adhesive layers applied to sheet-like materials, though already a variety of different applications for similar low pressure plasma processes exist. Examples are the coating of plastic bottles with permeation barrier layers or the scratch-resistant coating of plastic surfaces.
  • the object of the invention is to avoid the disadvantages of the prior art, at least diminish.
  • the task is solved by a process for producing anti-adhesive layers on a web-shaped material, as characterized in more detail in the main claim is.
  • the subclaims relate to particularly advantageous embodiments of the procedure.
  • the invention further encompasses the use of the antiadhesive Layers.
  • the invention relates to a method for producing anti-adhesive Layers on a sheet material by means of low pressure plasma polymerization can be applied to the sheet material by the sheet material is continuously passed through a plasma zone in which a low-pressure plasma is present is.
  • Important process parameters that affect the process of depositing the PSAs Anti-adhesive layers and thus control the layer properties are the compounds used to form the low pressure plasma or Carrier or the additional gases, the gas or gas mixture pressure during the Coating and the electrical discharge used for plasma excitation.
  • the variation the process parameter is used to optimize and adapt the opposite PSAs of antiadhesive layers to the technical boundary conditions in the respective application.
  • Coating is preferably carried out at a gas pressure or gas mixture pressure of 10 -3 to 20 mbar.
  • the unwinding station of the web-like material, the rewinding station and the plasma zone are in a vacuum chamber (batch operation) or that web-like material is guided through the plasma zone by means of vacuum locks, which is referred to as a so-called air-to-air operation.
  • Organosilicon compounds in particular are used to form the low-pressure plasma such as hexamethyldisiloxane, hexamethyldisilazane and / or tetraethylorthosilicate or perfluorinated hydrocarbons such as perfluomonan and / or perfluoropropene or Mixtures such as hexamethyldisiloxane with trifluoromethane and / or tetrafluoromethane are used.
  • hexamethyldisiloxane hexamethyldisilazane and / or tetraethylorthosilicate
  • perfluorinated hydrocarbons such as perfluomonan and / or perfluoropropene
  • Mixtures such as hexamethyldisiloxane with trifluoromethane and / or tetrafluoromethane are used.
  • Non-polymerizable gases such as noble gases and / or nitrogen are preferably used as carrier or additional gases. Additional and carrier gases are used to control the layer deposition and in particular to increase the uniformity and stability of the plasma.
  • Plastic sheets, foam carriers, Fabric carrier, non-woven carrier or paper carrier used.
  • agent according to the invention has proven to be particularly advantageous Process produced anti-adhesive layers against PSAs with one-sided Adhesive tapes to reduce adhesion as a back coating of the carrier exposed. These are also particularly suitable on the separating material, which is used to cover the adhesive coating.
  • Various forms of electrical discharge can be used for plasma excitation become. This is preferably done by kHz, MHz or GHz discharge.
  • Crucial for the selection of the form of excitation are the procedural boundary conditions, for example necessary coating speed or gas mixture pressure, during the coating.
  • a particular advantage of the method compared to the prior art is the possibility the process of layer deposition and thus that of PSAs Control the anti-adhesive effect of the coatings by varying the process parameters to be able to. This enables an optimal adaptation of the layer properties to the respective application.
  • Another advantage of the novel process is the absence of solvents and the Possibility of using substances from a health or environmental point of view are to be avoided.
  • a major advantage of the adhesives produced with the method compared to PSAs anti-adhesive layers is the fact that no material transfer from the opposite PSA anti-adhesive layer on the adhesive brought into contact with it takes place.
  • the thermal load on the sheet materials is due to the used Low pressure plasma low, so that especially temperature sensitive Materials such as polyethylene, polypropylene or foams coated without damage can be.
  • Another advantage is the high long-term stability of the new types compared to PSAs anti-adhesive layers, as they are highly cross-linked due to the new process and are thermally stable.
  • the anti-adhesive coatings formed by means of plasma polymerization in particular for adhesive backs and release materials are accordingly made solvent-free, show no transition of material compared to PSAs.
  • the web-shaped material 1 is from an unwinding station 2 through the Plasma coating zone 3 moves.
  • the plasma coating zone 3 through Limits 8 is separated from the rest of the vacuum chamber 7, which are used to form of the low-pressure plasma required connections initiated via a feed 4.
  • the plasma excitation and thus the fragmentation of the compounds takes place via a high-frequency alternating field, which is applied between the electrodes 5 and 6.
  • electrode 5 is designed as an earthed chill roll and thus also serves for transport of the sheet material 1.
  • Electrodes 10, 11 are formed flat, and the web-like material 1 is non-contact passed through the electrode gap.
  • the selection of the respective electrode arrangement depends on the specific application from. In the case of plasma excitation by means of GHz discharge, the electrodes are replaced by appropriate GHz couplings to replace.
  • a polyester film transparent, 500 mm wide and with a thickness of 25 ⁇ m an anti-adhesive layer against PSAs by means of low-pressure plasma polymerization upset.
  • the coating takes place accordingly in a system 1 with a hexamethyldisiloxane flow of 10 g / h at a process pressure of 1 mbar.
  • the film is passed through the plasma zone at a speed of 10 m / min (Length 200 mm), so that a coating time of 1.2 s results.
  • the plasma excitation takes place by means of kHz discharge.
  • a double-sided test tape which consists of a foamed carrier and equipped with an acrylate pressure sensitive adhesive is, in a width of 2 cm to that produced with the invention glued to PSA anti-adhesive layer, on which Backside reinforced with PVC film and rolled on (80 mm diameter, 2 kg Weight, is rolled back and forth over the adhesive tape five times at approx. 10 m / min).
  • the test of the separating force between the test adhesive tape and that against PSAs anti-adhesive layer is done by means of a traction machine at a Speed of 300 mm / min at an angle of 180 °.
  • the separation force between the Test adhesive tape and that according to the invention with an anti-adhesive against PSAs Layered film is 0.52 N / cm.
  • the opposite PSAs In this example, the antiadhesive effect is below that of conventional ones Carbamat lacquers is achieved and as required on the back of the tape become.

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Plasma & Fusion (AREA)
  • Adhesive Tapes (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Treatments Of Macromolecular Shaped Articles (AREA)
EP01103042A 2000-03-01 2001-02-09 Procédé pour fabriquer des revêtements antiadhésifs Expired - Lifetime EP1129791B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10009856 2000-03-01
DE10009856A DE10009856A1 (de) 2000-03-01 2000-03-01 Verfahren zur Herstellung von antiadhäsiven Beschichtungen

Publications (3)

Publication Number Publication Date
EP1129791A2 true EP1129791A2 (fr) 2001-09-05
EP1129791A3 EP1129791A3 (fr) 2003-08-27
EP1129791B1 EP1129791B1 (fr) 2005-12-28

Family

ID=7633029

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01103042A Expired - Lifetime EP1129791B1 (fr) 2000-03-01 2001-02-09 Procédé pour fabriquer des revêtements antiadhésifs

Country Status (3)

Country Link
US (1) US6444274B2 (fr)
EP (1) EP1129791B1 (fr)
DE (2) DE10009856A1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1978067A1 (fr) * 2007-04-02 2008-10-08 Nitto Europe N.V Feuille antiadhésive
WO2016131984A1 (fr) * 2015-02-20 2016-08-25 Tesa Se Procédé pour réduire le caractère collant de la tranche d'un rouleau de ruban adhésif
DE102015226230A1 (de) 2015-12-21 2017-06-22 Tesa Se Transferband zur Reduzierung der Seitenkantenklebrigkeit eines Klebebandes
DE102015226317A1 (de) 2015-12-21 2017-06-22 Tesa Se Transferband mit Sicherheitsmerkmalen für die Seitenkante eines Klebebandes
WO2018010930A1 (fr) 2016-07-15 2018-01-18 Tesa Se Réduction de la pégosité des bords latéraux d'un rouleau de ruban adhésif
DE102017210066A1 (de) 2017-06-14 2018-12-20 Tesa Se Verfahren zur simultanen Plasmarandverkapselung von mindestens zwei Klebebandseiten

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8840970B2 (en) 2011-01-16 2014-09-23 Sigma Laboratories Of Arizona, Llc Self-assembled functional layers in multilayer structures
US9968963B2 (en) 2015-08-31 2018-05-15 Sigma Laboratories Of Arizona, Llc Functional coating

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5112025A (en) * 1990-02-22 1992-05-12 Tdk Corporation Molds having wear resistant release coatings
EP0841140A2 (fr) * 1996-11-12 1998-05-13 Bae Hyeock Chun Procédé pour améliorer les propriétés de démoulage d'un moule par traitement avec un plasma à basse température
EP0949013A2 (fr) * 1998-04-04 1999-10-13 Beiersdorf Aktiengesellschaft Procédure pour la fabrication d'une couche promotrice d'adhésion

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5112025A (en) * 1990-02-22 1992-05-12 Tdk Corporation Molds having wear resistant release coatings
EP0841140A2 (fr) * 1996-11-12 1998-05-13 Bae Hyeock Chun Procédé pour améliorer les propriétés de démoulage d'un moule par traitement avec un plasma à basse température
EP0949013A2 (fr) * 1998-04-04 1999-10-13 Beiersdorf Aktiengesellschaft Procédure pour la fabrication d'une couche promotrice d'adhésion

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1978067A1 (fr) * 2007-04-02 2008-10-08 Nitto Europe N.V Feuille antiadhésive
WO2016131984A1 (fr) * 2015-02-20 2016-08-25 Tesa Se Procédé pour réduire le caractère collant de la tranche d'un rouleau de ruban adhésif
US20180009002A1 (en) * 2015-02-20 2018-01-11 Tesa Se Method for reducing the winding level adhesiveness of an adhesive tape roll
DE102015226230A1 (de) 2015-12-21 2017-06-22 Tesa Se Transferband zur Reduzierung der Seitenkantenklebrigkeit eines Klebebandes
DE102015226317A1 (de) 2015-12-21 2017-06-22 Tesa Se Transferband mit Sicherheitsmerkmalen für die Seitenkante eines Klebebandes
DE102015226317B4 (de) * 2015-12-21 2017-10-12 Tesa Se Transferband mit Sicherheitsmerkmalen für die Seitenkante eines Klebebandes
WO2018010930A1 (fr) 2016-07-15 2018-01-18 Tesa Se Réduction de la pégosité des bords latéraux d'un rouleau de ruban adhésif
DE102016212971A1 (de) 2016-07-15 2018-01-18 Tesa Se Reduzierung der Seitenkantenklebrigkeit einer Klebebandrolle
DE102017210066A1 (de) 2017-06-14 2018-12-20 Tesa Se Verfahren zur simultanen Plasmarandverkapselung von mindestens zwei Klebebandseiten

Also Published As

Publication number Publication date
US20010019743A1 (en) 2001-09-06
EP1129791A3 (fr) 2003-08-27
EP1129791B1 (fr) 2005-12-28
DE50108498D1 (de) 2006-02-02
DE10009856A1 (de) 2001-09-06
US6444274B2 (en) 2002-09-03

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