EP1215975A1 - Method for producing a shoe - Google Patents
Method for producing a shoeInfo
- Publication number
- EP1215975A1 EP1215975A1 EP00964209A EP00964209A EP1215975A1 EP 1215975 A1 EP1215975 A1 EP 1215975A1 EP 00964209 A EP00964209 A EP 00964209A EP 00964209 A EP00964209 A EP 00964209A EP 1215975 A1 EP1215975 A1 EP 1215975A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- shoe
- plasma jet
- adhesive
- pretreated
- glued
- 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- Withdrawn
Links
Classifications
-
- A—HUMAN NECESSITIES
- A43—FOOTWEAR
- A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
- A43B9/00—Footwear characterised by the assembling of the individual parts
- A43B9/12—Stuck or cemented footwear
-
- A—HUMAN NECESSITIES
- A43—FOOTWEAR
- A43D—MACHINES, TOOLS, EQUIPMENT OR METHODS FOR MANUFACTURING OR REPAIRING FOOTWEAR
- A43D25/00—Devices for gluing shoe parts
- A43D25/20—Arrangements for activating or for accelerating setting of adhesives, e.g. by using heat
Definitions
- the invention relates to a method for producing a shoe, in particular a sports shoe, or individual components of a shoe, wherein the components of the shoe, in particular the shoe upper and the outsole, are bonded to one another and at least one of the surfaces to be bonded before the adhesive is applied pretreated.
- the adhesiveness is also reduced by the additives, some of which migrate from the inside to the surface of the plastic and in this way additionally impair the adhesiveness.
- additives include lubricants such as fatty acid amides or the silicone oils or stearates used as mold release agents in the injection molding process.
- Another reason for the poor adhesiveness of some plastics is due to their non-polar surfaces when a polar adhesive such as. B. an adhesive based on polyurethane should be used. From these few examples it can be seen that the poor adhesiveness can have different causes for each of the various combinations of a specific plastic and a specific adhesive.
- the surfaces to be bonded are pretreated in the prior art before the adhesive is applied.
- Applying such a primer has several serious disadvantages.
- the substances are generally harmful to health and therefore require a great deal of effort to protect the workforce.
- the application, the drying and the reaction take a long time and special work spaces and require a relatively large amount of personnel.
- plastics are generally mentioned, highly fluorinated polymers, e.g. B. PTFE, and metal surfaces, e.g. B. aluminum.
- the plasma jet mentioned is generated by blowing a working gas, in particular air, under normal pressure and at normal temperature through an electric arc.
- the so-called plasma jet is then obtained when the working gas emerges from the arc. It is not certain whether this is actually a plasma in the actual sense, namely a gas that is at least partially split into ions and electrons. It is essential, however, that this jet is suitable for pretreating plastic surfaces.
- the invention is therefore based on the object of saving work steps in the process of the type mentioned, only low investment costs should be necessary and, if possible, work should be solvent-free.
- the pretreatment only the surface to be glued should be pretreated, and the handling should be simple.
- the pretreatment process should be able to be carried out continuously and automatically.
- the apparatus used for this should take up little space so that existing production lines can be easily converted.
- This object is achieved according to the invention with the method mentioned at the outset by generating a plasma jet under normal pressure and using pretreated the surface to be glued to the jet.
- the plasma jet is directed onto the surface and in particular is moved over the surface.
- the linear plasma jet described in the last-mentioned document is used, since this z. B. in the pretreatment of outsoles allows uniform irradiation of the entire sole surface without the sole edges are pretreated. If, on the other hand, a single fixed plasma jet is used, a rather punctiform pretreatment of the surface to be bonded is achieved.
- the surface of foamed ethylene vinyl acetate (“diecut EVA”) cut from a block is pretreated exclusively with the plasma jet. It has been shown that additional treatment with solvents or primers is not necessary.
- the adhesive e.g. B. a reactive hot melt adhesive can still be applied after 14 days without the adhesive quality deteriorating. In a tear test, the tear does not occur within the adhesive, but within the ethylene vinyl acetate.
- the EVA must be washed or roughened, treated with a primer and dried. If a hot melt adhesive is used, the EVA must also be preheated in a last step. According to the invention, these steps are no longer necessary.
- the surface of thermoplastic rubber is pretreated exclusively with the plasma jet and the adhesive is applied to the optionally preheated surface.
- Preheating the surface is only necessary when using hot melt adhesives.
- this material must be treated with a halogenated solvent or a corresponding gas and with a primer which contains polyurethane in a solvent.
- the surface of injection molded (“injection molded") foamed ethylene vinyl acetate for the pretreatment is first roughened mechanically or with a solvent, or the surface is allowed to swell. The surface is then treated with the plasma jet. In this case, the relatively smooth surface must be partially roughened before the plasma treatment. Organic solvents or alkaline solutions can be used as solvents.
- the adhesive e.g. B. the reactive hot melt adhesive can be applied.
- the surface must be washed with a solvent, a UV primer applied, irradiated with ultraviolet light, and finally a primer which contains polyurethane in a solvent must be used.
- the solvent is dispensed with, and two working steps can be saved. Exemplary embodiments of the invention and comparative examples are explained in more detail below. The method according to the invention was applied to the following exemplary materials, each test being carried out several times:
- TR sole material standard test material based on styrene-butadiene-styrene rubber (SBSR) from the PFI Institute (testing and research institute for shoe manufacture e.V.)
- Test specimens with a length of 120 mm and a width of 30 mm were punched from these test materials. Without further pretreatment, the surface of these test specimens was pretreated using normal pressure plasma.
- the plasma pretreatment system System PlasmaTreat® from Agrodyn Hochhardstechnik GmbH was used. The treatment was carried out using the RD 1013 rotary unit, using the FG 1001 generator and the HTR 2001 high-voltage transformer.
- the distance between the surface to be treated and the outlet of the plasma jet from the RD 1013 rotary unit was 10 mm. Only in the case of the foamed ("injection molded") EVA materials was the surface additionally roughened by grinding in a further experiment before the plasma treatment.
- test bonding of these pretreated materials was carried out in accordance with DIN EN 522 (adhesives for leather and shoe materials, strength of the bonds) and DIN EN 1392 (solvent and dispersion adhesives, test methods for measuring the strength of bonds under specified conditions) against test leather (double split chrome leather standard test material from the Satra Institute).
- the reactive polyurethane hot melt adhesive Macroplast QR 8116 developed by Henkel KGaA was used as the adhesive. This adhesive was applied over the entire surface to the substrates using a slot die, the surface temperature being approximately 60 ° C., and was activated, set and pressed in accordance with EN 1392.
- peeling tests were carried out using a PFI tearing machine.
- the composites described above were clamped and pulled apart at an angle of 180 ° at a speed of 100 mm / min.
- the forces required to separate the bond during the peeling tests were recorded and averaged after the end of the measurement.
Landscapes
- Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE1999146785 DE19946785A1 (en) | 1999-09-29 | 1999-09-29 | Method of making a shoe |
DE19946785 | 1999-09-29 | ||
PCT/EP2000/009185 WO2001022843A1 (en) | 1999-09-29 | 2000-09-20 | Method for producing a shoe |
Publications (1)
Publication Number | Publication Date |
---|---|
EP1215975A1 true EP1215975A1 (en) | 2002-06-26 |
Family
ID=7923786
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP00964209A Withdrawn EP1215975A1 (en) | 1999-09-29 | 2000-09-20 | Method for producing a shoe |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP1215975A1 (en) |
DE (1) | DE19946785A1 (en) |
WO (1) | WO2001022843A1 (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ITBO20040180A1 (en) * | 2004-03-31 | 2004-06-30 | Mario Ciucani | METHOD FOR THE APPLICATION OF GLUE ON A SURFACE OF AN ARTICLE |
CN103190737A (en) * | 2012-01-10 | 2013-07-10 | 汪腊新 | Atmospheric plasma surface treatment automation device used in footwear industry |
DE102012010246B3 (en) * | 2012-05-24 | 2013-10-02 | Heraeus Noblelight Gmbh | Process for making shoes or parts of shoes |
US20190177912A1 (en) * | 2017-12-13 | 2019-06-13 | Nike, Inc. | Method and system for plasma treatment |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5682827A (en) * | 1979-12-11 | 1981-07-06 | Mitsubishi Petrochem Co Ltd | Surface treatment of propylene composite resin molded article |
DE3713178A1 (en) * | 1987-04-17 | 1988-11-03 | Bayer Ag | METHOD FOR PRODUCING A COMPOSITE SYSTEM FROM A RUBBER-ELASTIC MATERIAL AND A POLYURETHANE FOAM LAYER |
FR2692276A1 (en) | 1992-06-12 | 1993-12-17 | Bostik Sa | Improving adhesion of polyolefin surfaces e.g. sport shoe soles - by coating with soln. of chlorinated polymer and titanate, esp. for treating sports shoe intermediate layers |
DE19532412C2 (en) * | 1995-09-01 | 1999-09-30 | Agrodyn Hochspannungstechnik G | Device for surface pretreatment of workpieces |
DE29805999U1 (en) | 1998-04-03 | 1998-06-25 | Agrodyn Hochspannungstechnik G | Device for the plasma treatment of surfaces |
WO2000001528A1 (en) * | 1998-07-07 | 2000-01-13 | Metroline Industries, Inc. | Methods for plasma modification of substrates |
-
1999
- 1999-09-29 DE DE1999146785 patent/DE19946785A1/en not_active Ceased
-
2000
- 2000-09-20 WO PCT/EP2000/009185 patent/WO2001022843A1/en not_active Application Discontinuation
- 2000-09-20 EP EP00964209A patent/EP1215975A1/en not_active Withdrawn
Non-Patent Citations (1)
Title |
---|
See references of WO0122843A1 * |
Also Published As
Publication number | Publication date |
---|---|
WO2001022843A1 (en) | 2001-04-05 |
DE19946785A1 (en) | 2001-04-26 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
17P | Request for examination filed |
Effective date: 20020320 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE |
|
17Q | First examination report despatched |
Effective date: 20030805 |
|
RBV | Designated contracting states (corrected) |
Designated state(s): AT BE CH CY DE FR GB IT LI |
|
GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
|
RBV | Designated contracting states (corrected) |
Designated state(s): DE FR GB IT |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
18D | Application deemed to be withdrawn |
Effective date: 20060211 |