WO1999062645A1 - Vitreous surface and coating process therefor - Google Patents
Vitreous surface and coating process therefor Download PDFInfo
- Publication number
- WO1999062645A1 WO1999062645A1 PCT/AU1999/000425 AU9900425W WO9962645A1 WO 1999062645 A1 WO1999062645 A1 WO 1999062645A1 AU 9900425 W AU9900425 W AU 9900425W WO 9962645 A1 WO9962645 A1 WO 9962645A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- coating
- vitreous surface
- ammonium bifluoride
- vitreous
- glass
- Prior art date
Links
- 238000000576 coating method Methods 0.000 title claims abstract description 61
- 239000011248 coating agent Substances 0.000 claims abstract description 54
- 238000000034 method Methods 0.000 claims abstract description 37
- MIMUSZHMZBJBPO-UHFFFAOYSA-N 6-methoxy-8-nitroquinoline Chemical compound N1=CC=CC2=CC(OC)=CC([N+]([O-])=O)=C21 MIMUSZHMZBJBPO-UHFFFAOYSA-N 0.000 claims abstract description 16
- 238000001035 drying Methods 0.000 claims abstract description 9
- 239000007788 liquid Substances 0.000 claims abstract description 7
- 239000011521 glass Substances 0.000 claims description 35
- 239000003054 catalyst Substances 0.000 claims description 10
- 239000004698 Polyethylene Substances 0.000 claims description 6
- -1 polyethylene Polymers 0.000 claims description 6
- 229920000573 polyethylene Polymers 0.000 claims description 6
- 239000007921 spray Substances 0.000 claims description 5
- 229920001730 Moisture cure polyurethane Polymers 0.000 abstract description 12
- 239000011527 polyurethane coating Substances 0.000 abstract description 5
- 238000006748 scratching Methods 0.000 abstract 1
- 230000002393 scratching effect Effects 0.000 abstract 1
- 239000000243 solution Substances 0.000 description 9
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 description 7
- 239000000463 material Substances 0.000 description 6
- 238000012360 testing method Methods 0.000 description 6
- 239000000203 mixture Substances 0.000 description 4
- 239000012748 slip agent Substances 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 229910017665 NH4HF2 Inorganic materials 0.000 description 2
- 150000001412 amines Chemical group 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 230000001627 detrimental effect Effects 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 238000007639 printing Methods 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 238000004088 simulation Methods 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 230000001464 adherent effect Effects 0.000 description 1
- 239000002318 adhesion promoter Substances 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 235000013361 beverage Nutrition 0.000 description 1
- 239000012159 carrier gas Substances 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 239000012459 cleaning agent Substances 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 239000012948 isocyanate Substances 0.000 description 1
- 150000002513 isocyanates Chemical class 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- QPJSUIGXIBEQAC-UHFFFAOYSA-N n-(2,4-dichloro-5-propan-2-yloxyphenyl)acetamide Chemical compound CC(C)OC1=CC(NC(C)=O)=C(Cl)C=C1Cl QPJSUIGXIBEQAC-UHFFFAOYSA-N 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- XOLBLPGZBRYERU-UHFFFAOYSA-N tin dioxide Chemical compound O=[Sn]=O XOLBLPGZBRYERU-UHFFFAOYSA-N 0.000 description 1
- 229910001887 tin oxide Inorganic materials 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C17/00—Surface treatment of glass, not in the form of fibres or filaments, by coating
- C03C17/001—General methods for coating; Devices therefor
- C03C17/003—General methods for coating; Devices therefor for hollow ware, e.g. containers
- C03C17/005—Coating the outside
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
- B08B3/04—Cleaning involving contact with liquid
- B08B3/08—Cleaning involving contact with liquid the liquid having chemical or dissolving effect
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C17/00—Surface treatment of glass, not in the form of fibres or filaments, by coating
- C03C17/28—Surface treatment of glass, not in the form of fibres or filaments, by coating with organic material
- C03C17/32—Surface treatment of glass, not in the form of fibres or filaments, by coating with organic material with synthetic or natural resins
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D7/00—Compositions of detergents based essentially on non-surface-active compounds
- C11D7/02—Inorganic compounds
- C11D7/04—Water-soluble compounds
- C11D7/10—Salts
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C2218/00—Methods for coating glass
- C03C2218/30—Aspects of methods for coating glass not covered above
- C03C2218/31—Pre-treatment
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D2111/00—Cleaning compositions characterised by the objects to be cleaned; Cleaning compositions characterised by non-standard cleaning or washing processes
- C11D2111/10—Objects to be cleaned
- C11D2111/14—Hard surfaces
- C11D2111/18—Glass; Plastics
Definitions
- the present invention relates to a composition and a method for removing polymeric coatings from vitreous surfaces and the subsequent application of a decorative coating to the cleaned surface.
- composition and process of the present invention find a particular application in the removal of polyethylene coatings applied to glass surfaces.
- Glass containers such as food jars and bottles for wine and other beverages are manufactured in vast numbers.
- the outer surface of the glass to receive a final coating with a slip agent which results in the glass having a low friction surface, enabling greater ease of handling of the final product.
- the slip agent is applied in the form of a coating typically consisting of a polyethylene film which is applied to the glass surface following treatment with a tin oxide primer. Without such a slip coating the surface of the glass is relatively rough with a high coefficient of friction and adjacent surfaces rubbing against one another cling together. This can produce an unacceptable degree of scuffing of a surface, and also causes difficulty with handling large numbers of glass items. Moreover, the scuffed glass surface has an unattractively rough appearance.
- the glass furthermore, has a more attractive scuff free appearance which is generally preferred.
- the scuffing of the bottles has also been found to have a detrimental effect on the ultimate strength of the bottles. There are therefore many sound reasons for the adoption of the coating process by glass manufacturers.
- bottle transfers or printing would not remain intact on the glass during rough handling and therefore would be rejected as a commercial proposition.
- compositions and methods whereby the polymeric coating applied as a slip coating to vitreous surfaces can be chemically removed.
- a method of removing a polyethylene coating from a vitreous surface characterized in that the method comprises the steps of:
- the thickness of the polyethylene slip coating applied to most commercial glass bottles is in the range 75-1 OO ⁇ m.
- the coating is removed by the process outlined above sufficiently to allow the application of an adherent decorative coating to the surface.
- the use of the process provides a number of advantages when compared with the baking off process outlined above.
- the process is considerably less energy intensive and does not expose the surface to the high and possibly damaging temperatures which are used in the baking off process.
- ammonium bifluoride provides advantages over other potential glass cleaning agents, for example, hydrofluoric acid (H 2 F 2 ).
- Hydrofluoric acid attacks glass surfaces very aggressively, to the extent that it would not be possible to remove the polyethylene coating off a glass surface without additionally dissolving a portion of the article itself. This could possibly be detrimental to the structure and strength of the bottle. It has been found that the surface of the glass is affected only to a limited extent by the solutions used in the process of the present invention.
- hydrofluoric acid There are further disadvantages to the use of hydrofluoric acid relating to difficulties in handling, storage and waste disposal of the material.
- the solution of ammonium bifluoride is an aqueous solution, the ammonium bifluoride being present in a concentration of 2-10% weight for weight, and more preferably in the weight range 4 to 8% weight for weight.
- the solution of ammonium bifluoride is maintained in contact with the surface to be cleaned for a period of 5-60 seconds.
- the ammonium bifluoride solution is maintained at a temperature of between 25 and 50 ° C.
- film residue and bifluoride solution can be satisfactorily removed with several spray rinses for a period of between 5 and 90 seconds at a pressure of between 20-200kPa at a flow rate of 1-5 litres of rinse water per bottle per minute (in the case of standard wine bottles). This is followed by a standing period to allow all waste material to drain prior to drying.
- the drying stage can be conducted at ambient temperature, and preferably includes a source of high velocity low pressure air.
- the polymerisable coating material is preferably a polyurethane pre-polymer curable at room temperatures.
- the pre-polymer coating material can be applied in a single stage as an atomised mixture of the pre-polymer with an appropriate vaporous catalytic amine bearing carrier gas.
- the pre-polymer coating material can be applied to the surface in a spraying process and subsequently cured by exposing the coated surface to a catalyst bearing vapour in a separate curing stage.
- the polyurethane pre-polymer coating is applied in the form of a single component moisture curable liquid pre- polymer.
- the pre-polymer coating may contain, in addition to an isocyanate pre-polymer, other components such as pigments, solvents, and slip agents (silicones) and adhesion promoters.
- the polymer is applied in a spraying process in which the liquid pre-polymer is coated onto the surface.
- the curing of the polymer can be achieved in a catalyst vaporous chamber having a humidity of up to 40-70% and containing an amine catalyst vapour, at a concentration of 1000-3000ppm, and a temperature of 25-40°C.
- a polyurethane coating would need to be exposed to the catalyst vapour for a minimum of 50 seconds and subsequently allowed to cure for a minimum of 4 minutes.
- the catalyst vapour chamber it is advantageous if the catalyst vapour is circulated so as to effectively bombard the surface coating with catalyst vapour.
- the surface coating produced by this process is typically 15-20 ⁇ m thick and, as described below, forms a secure bond to a glass surface for use as a bottle coating. Decorative colours and finishes can be incorporated into the coating.
- the coating is also screen printable.
- the effectiveness of the removal process can be gauged by comparing the adhesion of decorative coatings applied to bottles which have not undergone the cleaning process described hereinabove with the adhesion of a coating on bottles which have been through a cleaning process.
- the glass coating removal process was carried out using a 5% ammonium bifluoride solution in which the bottles were immersed for approximately 15 seconds at 35°C. The bottles were subsequently subjected to several spray rinses for up to 60s at a water pressure of 20-200kPa and a flow rate of 1 -5L of water per bottle per minute.
- the bottles were dried at room temperature in a high velocity low pressure air stream.
- the polyurethane coating was applied to bottles in both groups (a) and (b).
- a liquid pre-polymer was applied to each bottle surface the pre-polymer being subjected to airing in a catalyst vapour to form a polyurethane surface coating of 15-20 microns over the bottle surface.
- the bottles were allowed to stand overnight before testing.
- Bottles in group (a) were found to have a lacerated coating at the bottle/bottle and bottle/packaging contact points during the first hour of testing.
- the bottles in group (b) were found to have a coating intact after 3 hours. This is an acceptable industry benchmark.
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Geochemistry & Mineralogy (AREA)
- Inorganic Chemistry (AREA)
- Wood Science & Technology (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Surface Treatment Of Glass (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
- Cleaning By Liquid Or Steam (AREA)
- Cleaning In General (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP99924593A EP1098716A1 (en) | 1998-06-03 | 1999-06-02 | Vitreous surface and coating process therefor |
NZ508338A NZ508338A (en) | 1998-06-03 | 1999-06-02 | Process for removing coating from vitreous surface using ammonium bifluoride |
AU41243/99A AU736417B2 (en) | 1998-06-03 | 1999-06-02 | Vitreous surface and coating process therefor |
JP2000551894A JP2002516807A (en) | 1998-06-03 | 1999-06-02 | Vitreous surface and coating process of the vitreous surface |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AUPP3862 | 1998-06-03 | ||
AUPP3862A AUPP386298A0 (en) | 1998-06-03 | 1998-06-03 | Vitreous surface and coating process |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1999062645A1 true WO1999062645A1 (en) | 1999-12-09 |
Family
ID=3808107
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/AU1999/000425 WO1999062645A1 (en) | 1998-06-03 | 1999-06-02 | Vitreous surface and coating process therefor |
Country Status (7)
Country | Link |
---|---|
EP (1) | EP1098716A1 (en) |
JP (1) | JP2002516807A (en) |
CN (1) | CN1304339A (en) |
AU (1) | AUPP386298A0 (en) |
NZ (1) | NZ508338A (en) |
WO (1) | WO1999062645A1 (en) |
ZA (1) | ZA200006864B (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6733836B2 (en) * | 2000-11-28 | 2004-05-11 | Arthur Bourne | Vitreous surface and coating process therefore |
EP3375762A1 (en) * | 2017-03-17 | 2018-09-19 | Anheuser-Busch InBev S.A. | A glass container having an inkjet printed image and a method for the manufacturing thereof |
EP3375763A1 (en) * | 2017-03-17 | 2018-09-19 | Anheuser-Busch InBev S.A. | A glass container having an inkjet printed image and a method for the manufacturing thereof |
EP3455180B1 (en) | 2016-05-12 | 2021-11-17 | Anheuser-Busch InBev S.A. | A glass container having an inkjet printed image and a method for the manufacturing thereof |
CN114749418A (en) * | 2022-04-13 | 2022-07-15 | 安徽光智科技有限公司 | Film removing process for plastic coated lens |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2009138367A1 (en) * | 2008-05-14 | 2009-11-19 | Basf Se | Method for coating glass, polyethylene or polyester containers, and suitable aqueous formulations for said coating method |
EP3243805A1 (en) * | 2016-05-12 | 2017-11-15 | Anheuser-Busch InBev S.A. | A glass container having an inkjet printed image and a method for the manufacturing thereof |
CN110527347A (en) * | 2018-05-23 | 2019-12-03 | 深圳市裕展精密科技有限公司 | Strip agent and the strip method for using the strip agent |
CN110665927B (en) * | 2019-09-16 | 2021-09-21 | 湖北久之洋红外系统股份有限公司 | Nondestructive cleaning process of optical glass for laser system |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3650960A (en) * | 1969-05-06 | 1972-03-21 | Allied Chem | Etching solutions |
GB1302796A (en) * | 1970-10-23 | 1973-01-10 | ||
US4921626A (en) * | 1989-08-23 | 1990-05-01 | Automark Corporation | Glass etching composition and method of making |
-
1998
- 1998-06-03 AU AUPP3862A patent/AUPP386298A0/en not_active Abandoned
-
1999
- 1999-06-02 NZ NZ508338A patent/NZ508338A/en unknown
- 1999-06-02 EP EP99924593A patent/EP1098716A1/en not_active Withdrawn
- 1999-06-02 CN CN99806974A patent/CN1304339A/en active Pending
- 1999-06-02 JP JP2000551894A patent/JP2002516807A/en active Pending
- 1999-06-02 WO PCT/AU1999/000425 patent/WO1999062645A1/en not_active Application Discontinuation
-
2000
- 2000-11-23 ZA ZA200006864A patent/ZA200006864B/en unknown
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3650960A (en) * | 1969-05-06 | 1972-03-21 | Allied Chem | Etching solutions |
GB1302796A (en) * | 1970-10-23 | 1973-01-10 | ||
US4921626A (en) * | 1989-08-23 | 1990-05-01 | Automark Corporation | Glass etching composition and method of making |
Cited By (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6733836B2 (en) * | 2000-11-28 | 2004-05-11 | Arthur Bourne | Vitreous surface and coating process therefore |
US11739024B2 (en) * | 2016-05-12 | 2023-08-29 | Anheuser-Busch Inbev S.A. | Glass container having an inkjet printed image and a method for the manufacturing thereof |
EP3455180B1 (en) | 2016-05-12 | 2021-11-17 | Anheuser-Busch InBev S.A. | A glass container having an inkjet printed image and a method for the manufacturing thereof |
BE1025712B1 (en) * | 2017-03-17 | 2019-06-18 | Anheuser-Busch Inbev S.A. | GLASS CONTAINER COMPRISING AN INKJET PRINTED IMAGE AND A METHOD OF PRODUCING IT |
WO2018167257A1 (en) | 2017-03-17 | 2018-09-20 | Anheuser-Busch Inbev S.A. | A glass container having an inkjet printed image and a method for the manufacturing thereof |
BE1025711B1 (en) * | 2017-03-17 | 2019-06-18 | Anheuser-Busch Inbev S.A. | Glass container comprising an inkjet printed image and a method for producing it |
WO2018167260A1 (en) | 2017-03-17 | 2018-09-20 | Anheuser-Busch Inbev S.A. | A glass container having an inkjet printed image and a method for the manufacturing thereof |
CN110494403A (en) * | 2017-03-17 | 2019-11-22 | 安海斯-布希英博有限公司 | The glass container and its manufacturing method of image with ink jet printing |
EP3375763A1 (en) * | 2017-03-17 | 2018-09-19 | Anheuser-Busch InBev S.A. | A glass container having an inkjet printed image and a method for the manufacturing thereof |
US20230116920A1 (en) * | 2017-03-17 | 2023-04-20 | Anheuser-Busch Inbev S.A. | Glass Container Having an Inkjet Printed Image and a Method for the Manufacturing Thereof |
US11660898B2 (en) | 2017-03-17 | 2023-05-30 | Anheuser-Busch Inbev S.A. | Glass container having an inkjet printed image and a method for the manufacturing thereof |
EP3375762A1 (en) * | 2017-03-17 | 2018-09-19 | Anheuser-Busch InBev S.A. | A glass container having an inkjet printed image and a method for the manufacturing thereof |
CN114749418A (en) * | 2022-04-13 | 2022-07-15 | 安徽光智科技有限公司 | Film removing process for plastic coated lens |
Also Published As
Publication number | Publication date |
---|---|
CN1304339A (en) | 2001-07-18 |
EP1098716A1 (en) | 2001-05-16 |
ZA200006864B (en) | 2001-09-04 |
AUPP386298A0 (en) | 1998-06-25 |
NZ508338A (en) | 2002-10-25 |
JP2002516807A (en) | 2002-06-11 |
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