WO2008026084A2 - A method of producing outer panels of white goods - Google Patents

A method of producing outer panels of white goods Download PDF

Info

Publication number
WO2008026084A2
WO2008026084A2 PCT/IB2007/052052 IB2007052052W WO2008026084A2 WO 2008026084 A2 WO2008026084 A2 WO 2008026084A2 IB 2007052052 W IB2007052052 W IB 2007052052W WO 2008026084 A2 WO2008026084 A2 WO 2008026084A2
Authority
WO
WIPO (PCT)
Prior art keywords
stage
coating
hot
thermoplastic plate
varnish
Prior art date
Application number
PCT/IB2007/052052
Other languages
French (fr)
Other versions
WO2008026084B1 (en
WO2008026084A3 (en
Inventor
Halil Turan
Halil Pekmen
Original Assignee
Vestel Beyaz Esya Sanayi Ve Ticaret A.S.
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 Vestel Beyaz Esya Sanayi Ve Ticaret A.S. filed Critical Vestel Beyaz Esya Sanayi Ve Ticaret A.S.
Publication of WO2008026084A2 publication Critical patent/WO2008026084A2/en
Publication of WO2008026084A3 publication Critical patent/WO2008026084A3/en
Publication of WO2008026084B1 publication Critical patent/WO2008026084B1/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/14—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers
    • B32B37/16—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers with all layers existing as coherent layers before laminating
    • B32B37/22—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers with all layers existing as coherent layers before laminating involving the assembly of both discrete and continuous layers
    • B32B37/223—One or more of the layers being plastic
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B38/00—Ancillary operations in connection with laminating processes
    • B32B38/12—Deep-drawing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B38/00—Ancillary operations in connection with laminating processes
    • B32B38/16—Drying; Softening; Cleaning
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/50—Properties of the layers or laminate having particular mechanical properties
    • B32B2307/584—Scratch resistance
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2310/00—Treatment by energy or chemical effects
    • B32B2310/04—Treatment by energy or chemical effects using liquids, gas or steam
    • B32B2310/0445—Treatment by energy or chemical effects using liquids, gas or steam using gas or flames
    • B32B2310/0454—Hot air
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2310/00—Treatment by energy or chemical effects
    • B32B2310/08—Treatment by energy or chemical effects by wave energy or particle radiation
    • B32B2310/0806—Treatment by energy or chemical effects by wave energy or particle radiation using electromagnetic radiation
    • B32B2310/0825—Treatment by energy or chemical effects by wave energy or particle radiation using electromagnetic radiation using IR radiation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2509/00—Household appliances
    • B32B2509/10—Refrigerators or refrigerating equipment

Definitions

  • This invention is related to a thermoplastic material, which can be subjected to hot or cold forming process, especially used in doors and outer panels of coolers such as refrigerator, freezer or other white goods and a production method for this material.
  • the subject matter of invention of the material production technique for the outer panels of white goods provides the visual and functional properties with other materials and reduces the costs much more compared to the methods currently used.
  • the acrylic-based, PMMA (Polymethyl Methacrylate)- and ABS (Acrylonitrile Butadine Styrene)-composed, multiple-layered plastic plate is substituted by any thermoplastic and in order to provide the same visual impression, an additive composed of a special dye and varnish mixture is applied thereon and a moisture barrier is also laminated on the back surface of the plate.
  • the published patent applications WO2006005090, WO2005042248, WO9902339 mention multiple-layered composite materials which are generated with the use of above-mentioned materials.
  • a HDPE High Density Polyethylene
  • a film with low moisture permeability which is laminated with hot combining or gluing method on the single-layered thermoplastic used in the present technique instead of HDPE but much more effective than HDPE.
  • This invention aims to develop a technique to solve the problems such as discoloration and moistening of thermoplastic material to be especially used in the outer panels of white goods, which can be subjected to hot or cold forming process.
  • Another aim of this invention is to develop a low-cost material as an alternative to the PMMA/ABS-based plastic plates which are currently subjected to forming in order to provide various esthetic factors in the cooler doors.
  • the other aim of this invention is to solve the moisture barrier to be generated on the material considered for the outer panels of white goods with a low-cost and easy-to-apply method.
  • Another aim of this invention is to ensure the production of a material which will be an alternative to the materials obtained with the methods used in the prior art and has the same visual impression but more functional.
  • the subject matter invention of material which is considered for the outer panels of white goods has a multi-layered structure and the production stages are performed as follows.
  • the powder or the wet dye is applied on one side of a thermoplastic plate and the plate is entirely dried through infrared light source, hot air blowing, furnacing, natural convection or other known methods apart from these.
  • a moisture barrier is generated by laminating a film layer, which does not permeate moisture to the uncoated lower side of the thermoplastic plate, with hot combining or gluing method.
  • thermoplastic plate can be subjected to a forming process and converted into a desired form after or before any of said these two stages.
  • a forming process hot or cold forming methods can be applied. It is also possible to apply both forming processes together.
  • the moisture barrier can be a film laminated with PA (Polyamide) - and PE (Polyethylene)-based hot combining method, an aluminum layer laminated with hot combining or gluing method, and another material with low moisture permeability.
  • PA Polyamide
  • PE Polyethylene
  • thermoplastic plate and curing varnish after the first stage described above, as an optional intermediate stage, processes of coating varnish on the thermoplastic plate and curing varnish through the application of ultraviolet light with a wavelength less than 380 nm and a flux greater than 1 mW/cm 2 for maximum 60 seconds can also be performed.
  • thermoplastic plate after the first stage described above, yet as an optional another intermediate stage, the thermoplastic plate can be coated with a titanium dioxide- or polyurethane-added polymer layer which is protective against fingerprints, scratches and bacteria, preventive against the contamination of the surface, gives hydrophobic or hydrophilic property based on the surface, actual area or request.
  • a titanium dioxide- or polyurethane-added polymer layer which is protective against fingerprints, scratches and bacteria, preventive against the contamination of the surface, gives hydrophobic or hydrophilic property based on the surface, actual area or request.
  • This intermediate stage is applied after the varnish coating stage if above-mentioned varnish coating stage is applied.
  • thermoplastic plate can be converted into the desired form by being subjected to a forming process before or after any of these intermediate stages.
  • a forming process hot or cold forming methods can be applied. It is also possible to apply both forming processes together.

Landscapes

  • Laminated Bodies (AREA)
  • Refrigerator Housings (AREA)
  • Finishing Walls (AREA)

Abstract

With the present method, the production stages of a material with multi-layered structure to be used for the outer panels of white goods are explained. In the first stage, a dye is applied on one side of a thermoplastic plate and the plate is dried. In the second stage, a moisture barrier is generated by laminating a film layer, which does not permeate moisture to the uncoated lower side of the thermoplastic plate, with hot combining or gluing method. After the first stage, as an intermediate stage, processes of coating varnish on the thermoplastic plate and curing varnish by applying ultraviolet light; after that or as another intermediate stage, coating a protective layer against fingerprints, scratches and bacteria and then drying can be applied. The thermoplastic plate is subjected to the forming process and converted into a desired form after or before any of said stages.

Description

DESCRIPTION
A METHOD OF PRODUCING OUTER PANELS OF WHITE GOODS
Technical Field
This invention is related to a thermoplastic material, which can be subjected to hot or cold forming process, especially used in doors and outer panels of coolers such as refrigerator, freezer or other white goods and a production method for this material.
Prior Art
There are solutions present for the use of a plastic material which can replace the metal sheet currently used in the front doors of white goods such as coolers and which is suitable for producers who would like to use various esthetic designs in white goods due to the easiness of forming with thermoform method. These solutions are the plastic plates which are produced through the co-extrusion of PMMA and ABS plastics. This structure which is produced multiple-layered where each layer provides different visual and functional property in order to be able to replace the metal sheet is very costly when compared to metal sheet.
The subject matter of invention of the material production technique for the outer panels of white goods provides the visual and functional properties with other materials and reduces the costs much more compared to the methods currently used. With the invention, the acrylic-based, PMMA (Polymethyl Methacrylate)- and ABS (Acrylonitrile Butadine Styrene)-composed, multiple-layered plastic plate is substituted by any thermoplastic and in order to provide the same visual impression, an additive composed of a special dye and varnish mixture is applied thereon and a moisture barrier is also laminated on the back surface of the plate. For example, in the prior art, the published patent applications WO2006005090, WO2005042248, WO9902339 mention multiple-layered composite materials which are generated with the use of above-mentioned materials. For the moisture solution, a HDPE (High Density Polyethylene)-based layer which is placed beneath the PMMA/ABS is used. In the subject matter of the technique, the moisture transition is prevented with a film with low moisture permeability, which is laminated with hot combining or gluing method on the single-layered thermoplastic used in the present technique instead of HDPE but much more effective than HDPE.
Aim of the invention
This invention aims to develop a technique to solve the problems such as discoloration and moistening of thermoplastic material to be especially used in the outer panels of white goods, which can be subjected to hot or cold forming process.
Another aim of this invention is to develop a low-cost material as an alternative to the PMMA/ABS-based plastic plates which are currently subjected to forming in order to provide various esthetic factors in the cooler doors.
The other aim of this invention is to solve the moisture barrier to be generated on the material considered for the outer panels of white goods with a low-cost and easy-to-apply method.
Another aim of this invention is to ensure the production of a material which will be an alternative to the materials obtained with the methods used in the prior art and has the same visual impression but more functional.
Disclosure of Invention
The subject matter invention of material which is considered for the outer panels of white goods has a multi-layered structure and the production stages are performed as follows.
In the first stage, the powder or the wet dye is applied on one side of a thermoplastic plate and the plate is entirely dried through infrared light source, hot air blowing, furnacing, natural convection or other known methods apart from these. In the second stage, a moisture barrier is generated by laminating a film layer, which does not permeate moisture to the uncoated lower side of the thermoplastic plate, with hot combining or gluing method.
The thermoplastic plate can be subjected to a forming process and converted into a desired form after or before any of said these two stages. As this forming process, hot or cold forming methods can be applied. It is also possible to apply both forming processes together.
The moisture barrier can be a film laminated with PA (Polyamide) - and PE (Polyethylene)-based hot combining method, an aluminum layer laminated with hot combining or gluing method, and another material with low moisture permeability.
In an alternative embodiment of the invention, after the first stage described above, as an optional intermediate stage, processes of coating varnish on the thermoplastic plate and curing varnish through the application of ultraviolet light with a wavelength less than 380 nm and a flux greater than 1 mW/cm2 for maximum 60 seconds can also be performed.
In another alternative embodiment of the invention, after the first stage described above, yet as an optional another intermediate stage, the thermoplastic plate can be coated with a titanium dioxide- or polyurethane-added polymer layer which is protective against fingerprints, scratches and bacteria, preventive against the contamination of the surface, gives hydrophobic or hydrophilic property based on the surface, actual area or request. By adhering the property of this coating, the surface is entirely dried with infrared light source, hot air blowing, furnacing, natural convection or similar methods. This intermediate stage is applied after the varnish coating stage if above-mentioned varnish coating stage is applied.
If above-mentioned intermediate stages are used in the present manufacturing method, the thermoplastic plate can be converted into the desired form by being subjected to a forming process before or after any of these intermediate stages. As this forming process, hot or cold forming methods can be applied. It is also possible to apply both forming processes together.

Claims

1. A method of producing a multi-layered material, containing a thermoplastic plate, to be used in doors and outer panels of coolers such as refrigerator, freezer or other white goods, characterized in that in order to prevent the moistening and discoloration of doors or panels, it comprises the following stages: i. in the first stage, the powder or the wet dye is applied on one side of a thermoplastic plate and the plate is entirely dried; ii. in the second stage, a moisture barrier is generated by laminating a film layer, which does not permeate moisture to the uncoated lower side of the thermoplastic plate, with hot combining or gluing method.
2. A method according to claim 1 , wherein the thermoplastic plate can be subjected to a forming process and converted into a desired form after or before any of said stages.
3. A method according to claim 2, wherein as said forming process, hot forming method is applied.
4. A method according to claim 2, wherein as said forming process, cold forming method is applied.
5. A method according to claim 2, wherein as said forming process, hot and cold forming methods are applied together.
6. A method according to claim 1 , wherein the moisture barrier mentioned in the second stage is a film which is laminated with polyamide- and polyethylene-based hot combining.
7. A method according to claim 1 , wherein the moisture barrier mentioned in the second stage is an aluminum layer.
8. A method according to claim 1 , wherein the drying process performed in the first stage is made with an infrared light source.
1
9. A method according to claim 1 , wherein the drying process performed in the first stage is made with hot air blowing.
10. A method according to claim 1 , wherein the drying process performed in the first stage is made with furnacing.
11. A method according to claim 1 , wherein the drying process performed in the first stage is made with natural convection.
12. A method according to claim 1 , wherein after the first stage, as an intermediate stage, processes of coating varnish on the thermoplastic plate and curing varnish are performed.
13. A method according to claim 12, wherein for varnish curing process, an ultraviolet light with a wavelength less than 380 nm and a flux greater than 1 mW/cm2 is applied for not more than 60 seconds on the varnish.
14. A method according to claim 1 , wherein after the first stage, as an intermediate stage, the thermoplastic plate is coated with a layer which is protective against fingerprints, scratches and bacteria, preventive against the contamination of the surface, gives hydrophobic or hydrophilic property based on the surface, actual area or request.
15. A method according to claim 14, wherein said layer is a titanium dioxide- added polymer material.
16. A method according to claim 14, wherein said layer is a polyurethane-added polymer material.
17. A method according to claim 14, wherein an infrared light source is used to dry said coating.
18. A method according to claim 14, wherein the hot air blowing method is used to dry said coating.
19. A method according to claim 14, wherein the furnacing method is used to dry said coating.
20. A method according to claim 14, wherein the natural convection method is used to dry said coating.
21. A method according to claim 14, wherein said intermediate stage is applied after the varnish coating stage if the varnish coating stage is applied.
22. A method according to claims 12 and 14, wherein the thermoplastic plate can be subjected to a forming process and converted into a desired form after or before any of said intermediate stages.
23. A method according to claim 22, wherein as said forming process, hot forming method is applied.
24. A method according to claim 22, wherein as said forming process, cold forming method is applied.
25. A method according to claim 22, wherein as said forming process, hot and cold forming methods are applied together.
PCT/IB2007/052052 2006-08-29 2007-05-31 A method of producing outer panels of white goods WO2008026084A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
TR2006/04671A TR200604671A1 (en) 2006-08-29 2006-08-29 Production method for white goods exterior panels.
TRTR200604671 2006-08-29

Publications (3)

Publication Number Publication Date
WO2008026084A2 true WO2008026084A2 (en) 2008-03-06
WO2008026084A3 WO2008026084A3 (en) 2008-05-08
WO2008026084B1 WO2008026084B1 (en) 2008-07-10

Family

ID=38657819

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2007/052052 WO2008026084A2 (en) 2006-08-29 2007-05-31 A method of producing outer panels of white goods

Country Status (2)

Country Link
TR (1) TR200604671A1 (en)
WO (1) WO2008026084A2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8864251B2 (en) 2012-07-31 2014-10-21 Whirlpool Corporation Hydrophilic structures for condensation management in refrigerator appliances
US8926032B2 (en) 2012-07-31 2015-01-06 Whirlpool Corporation Hydrophilic structure for condensation management on the movable mullion of a refrigerator

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0446486A2 (en) * 1990-03-16 1991-09-18 Degussa Aktiengesellschaft Thermal insulation element
WO1999016657A1 (en) * 1997-09-17 1999-04-08 Ab Volvo Load-carrying vehicle roof and method for its manufacture
DE19908584A1 (en) * 1999-02-27 2000-09-07 Innoform Entwicklungs Und Vert Plate element, in particular, for furniture construction and/or for use as a lining element in various fields comprises a core of hard plastic foam, and decorated or deco-ratable cover layers with a specified tearing strain
DE19915311A1 (en) * 1999-04-03 2000-10-05 Bayer Ag Vacuum insulating panel, especially for refrigerators, has a microporous core encased in a 7-layer plastic foil with a polyolefin sealing layer, a gas barrier, a polyolefin layer and a metallised polymer layer
WO2003047857A1 (en) * 2001-11-30 2003-06-12 General Electric Company Multilayer articles comprising resorcinol arylate polyester and method for making thereof

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0446486A2 (en) * 1990-03-16 1991-09-18 Degussa Aktiengesellschaft Thermal insulation element
WO1999016657A1 (en) * 1997-09-17 1999-04-08 Ab Volvo Load-carrying vehicle roof and method for its manufacture
DE19908584A1 (en) * 1999-02-27 2000-09-07 Innoform Entwicklungs Und Vert Plate element, in particular, for furniture construction and/or for use as a lining element in various fields comprises a core of hard plastic foam, and decorated or deco-ratable cover layers with a specified tearing strain
DE19915311A1 (en) * 1999-04-03 2000-10-05 Bayer Ag Vacuum insulating panel, especially for refrigerators, has a microporous core encased in a 7-layer plastic foil with a polyolefin sealing layer, a gas barrier, a polyolefin layer and a metallised polymer layer
WO2003047857A1 (en) * 2001-11-30 2003-06-12 General Electric Company Multilayer articles comprising resorcinol arylate polyester and method for making thereof

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8864251B2 (en) 2012-07-31 2014-10-21 Whirlpool Corporation Hydrophilic structures for condensation management in refrigerator appliances
US8926032B2 (en) 2012-07-31 2015-01-06 Whirlpool Corporation Hydrophilic structure for condensation management on the movable mullion of a refrigerator
US9250007B2 (en) 2012-07-31 2016-02-02 Whirlpool Corporation Hydrophilic structures for condensation management in appliances

Also Published As

Publication number Publication date
TR200604671A1 (en) 2008-03-21
WO2008026084B1 (en) 2008-07-10
WO2008026084A3 (en) 2008-05-08

Similar Documents

Publication Publication Date Title
KR101956338B1 (en) Embossed and Hot-Melt Laminated Multi-Layered Composite Film
US9616643B2 (en) Embossed thermoplastic label
US20070020448A1 (en) Cavitated film structures
US7163727B2 (en) Multi-layer barrier film structure
US20080000581A1 (en) Preparation of laminated composite substrates using coated oriented polymeric film
ATE438503T1 (en) PACKAGING FILM
WO2009152427A8 (en) Method to produce matte and opaque biaxially oriented polylactic acid film
CA3011153A1 (en) Coated, oriented, linear, low-density, polyethylene films
JPH03140240A (en) Thermally laminatable, highly glossy multilayer film
US20110135807A1 (en) Multi-layer, substantially polyvinyl chloride- and polyolefin-free composite film
JP7236379B2 (en) Method for producing film, biaxially oriented polypropylene film
WO2009121784A3 (en) Security laminate having a security feature
BR0016838A (en) Multilayer oriented polypropylene films with modified core
WO2008026084A2 (en) A method of producing outer panels of white goods
DE502006007144D1 (en) Multilayer films with optical special effects and process for their production
CN109177402A (en) A kind of radium-shine BOPP precoating basement membrane and preparation method thereof
US7988894B2 (en) Method of making biaxially oriented polyolefin film for cold seal applications
CA2605363A1 (en) Permeable polypropylene film
US20080138595A1 (en) Mass repeatable thermoformable sheet such as which may be applied over a scrim material to produce a decorative and structural article
KR20080048445A (en) Interior sheet
CN108698367A (en) Improved pure white film for pressure-sensitive label
WO2017066779A1 (en) Metal coatings and co-extrusions
CA2323901C (en) Metallic composite material and method for the production thereof
JPS60240638A (en) Paper carton
OA12410A (en) Plastic film.

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 07736063

Country of ref document: EP

Kind code of ref document: A2

DPE1 Request for preliminary examination filed after expiration of 19th month from priority date (pct application filed from 20040101)
NENP Non-entry into the national phase in:

Ref country code: DE

NENP Non-entry into the national phase in:

Ref country code: RU

122 Ep: pct application non-entry in european phase

Ref document number: 07736063

Country of ref document: EP

Kind code of ref document: A2