CN112585099A - Scratch masking coating solution for glass containers - Google Patents
Scratch masking coating solution for glass containers Download PDFInfo
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- CN112585099A CN112585099A CN201980054855.3A CN201980054855A CN112585099A CN 112585099 A CN112585099 A CN 112585099A CN 201980054855 A CN201980054855 A CN 201980054855A CN 112585099 A CN112585099 A CN 112585099A
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- 239000011521 glass Substances 0.000 title claims abstract description 67
- 238000000576 coating method Methods 0.000 title claims abstract description 63
- 239000011248 coating agent Substances 0.000 title claims abstract description 55
- 230000000873 masking effect Effects 0.000 title abstract description 17
- 239000000203 mixture Substances 0.000 claims abstract description 96
- 238000009472 formulation Methods 0.000 claims abstract description 62
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 52
- -1 sorbitan ester Chemical class 0.000 claims description 37
- ZORQXIQZAOLNGE-UHFFFAOYSA-N 1,1-difluorocyclohexane Chemical compound FC1(F)CCCCC1 ZORQXIQZAOLNGE-UHFFFAOYSA-N 0.000 claims description 29
- 239000001593 sorbitan monooleate Substances 0.000 claims description 28
- 235000011069 sorbitan monooleate Nutrition 0.000 claims description 28
- 229940035049 sorbitan monooleate Drugs 0.000 claims description 28
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 claims description 26
- 239000002480 mineral oil Substances 0.000 claims description 22
- 239000003921 oil Substances 0.000 claims description 20
- 238000000034 method Methods 0.000 claims description 19
- 235000010446 mineral oil Nutrition 0.000 claims description 18
- 239000000839 emulsion Substances 0.000 claims description 14
- 239000004094 surface-active agent Substances 0.000 claims description 10
- 238000004140 cleaning Methods 0.000 claims description 7
- 239000006096 absorbing agent Substances 0.000 claims description 6
- 238000011049 filling Methods 0.000 claims description 6
- 238000002360 preparation method Methods 0.000 claims description 6
- 239000000654 additive Substances 0.000 claims description 5
- JNYAEWCLZODPBN-JGWLITMVSA-N (2r,3r,4s)-2-[(1r)-1,2-dihydroxyethyl]oxolane-3,4-diol Chemical class OC[C@@H](O)[C@H]1OC[C@H](O)[C@H]1O JNYAEWCLZODPBN-JGWLITMVSA-N 0.000 claims description 4
- 239000003205 fragrance Substances 0.000 claims description 4
- 239000000314 lubricant Substances 0.000 claims description 4
- 239000000975 dye Substances 0.000 claims description 3
- LYCAIKOWRPUZTN-UHFFFAOYSA-N ethylene glycol Natural products OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 3
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 claims description 3
- 230000000844 anti-bacterial effect Effects 0.000 claims description 2
- 239000003899 bactericide agent Substances 0.000 claims description 2
- 239000003139 biocide Substances 0.000 claims description 2
- 239000003755 preservative agent Substances 0.000 claims description 2
- 239000000243 solution Substances 0.000 description 39
- 238000002156 mixing Methods 0.000 description 17
- 239000007921 spray Substances 0.000 description 10
- 239000007788 liquid Substances 0.000 description 7
- 238000005299 abrasion Methods 0.000 description 6
- 238000003860 storage Methods 0.000 description 6
- 239000007764 o/w emulsion Substances 0.000 description 5
- 239000012071 phase Substances 0.000 description 5
- 238000005191 phase separation Methods 0.000 description 5
- CFKMVGJGLGKFKI-UHFFFAOYSA-N 4-chloro-m-cresol Chemical compound CC1=CC(O)=CC=C1Cl CFKMVGJGLGKFKI-UHFFFAOYSA-N 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 239000008346 aqueous phase Substances 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 3
- 238000002372 labelling Methods 0.000 description 3
- 239000011253 protective coating Substances 0.000 description 3
- 229920006395 saturated elastomer Polymers 0.000 description 3
- 238000005507 spraying Methods 0.000 description 3
- XZIIFPSPUDAGJM-UHFFFAOYSA-N 6-chloro-2-n,2-n-diethylpyrimidine-2,4-diamine Chemical compound CCN(CC)C1=NC(N)=CC(Cl)=N1 XZIIFPSPUDAGJM-UHFFFAOYSA-N 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 2
- HVUMOYIDDBPOLL-XWVZOOPGSA-N Sorbitan monostearate Chemical compound CCCCCCCCCCCCCCCCCC(=O)OC[C@@H](O)[C@H]1OC[C@H](O)[C@H]1O HVUMOYIDDBPOLL-XWVZOOPGSA-N 0.000 description 2
- IJCWFDPJFXGQBN-RYNSOKOISA-N [(2R)-2-[(2R,3R,4S)-4-hydroxy-3-octadecanoyloxyoxolan-2-yl]-2-octadecanoyloxyethyl] octadecanoate Chemical compound CCCCCCCCCCCCCCCCCC(=O)OC[C@@H](OC(=O)CCCCCCCCCCCCCCCCC)[C@H]1OC[C@H](O)[C@H]1OC(=O)CCCCCCCCCCCCCCCCC IJCWFDPJFXGQBN-RYNSOKOISA-N 0.000 description 2
- 239000002199 base oil Substances 0.000 description 2
- 235000013361 beverage Nutrition 0.000 description 2
- 235000013373 food additive Nutrition 0.000 description 2
- 239000002778 food additive Substances 0.000 description 2
- 229930195733 hydrocarbon Natural products 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 230000000670 limiting effect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 230000009965 odorless effect Effects 0.000 description 2
- 229950008882 polysorbate Drugs 0.000 description 2
- 229920000136 polysorbate Polymers 0.000 description 2
- 238000006748 scratching Methods 0.000 description 2
- 230000002393 scratching effect Effects 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- 239000001587 sorbitan monostearate Substances 0.000 description 2
- 235000011076 sorbitan monostearate Nutrition 0.000 description 2
- 239000002202 Polyethylene glycol Substances 0.000 description 1
- 206010040880 Skin irritation Diseases 0.000 description 1
- 239000004147 Sorbitan trioleate Substances 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- 150000001335 aliphatic alkanes Chemical class 0.000 description 1
- 125000001931 aliphatic group Chemical group 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 235000013405 beer Nutrition 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000004581 coalescence Methods 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 239000010779 crude oil Substances 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 239000003599 detergent Substances 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 230000001804 emulsifying effect Effects 0.000 description 1
- 150000002170 ethers Chemical class 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000005429 filling process Methods 0.000 description 1
- 238000005189 flocculation Methods 0.000 description 1
- 230000016615 flocculation Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 241000411851 herbal medicine Species 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 239000012669 liquid formulation Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 239000004058 oil shale Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 239000003209 petroleum derivative Substances 0.000 description 1
- 229920000570 polyether Polymers 0.000 description 1
- 229920001223 polyethylene glycol Polymers 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000036556 skin irritation Effects 0.000 description 1
- 231100000475 skin irritation Toxicity 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 229940035044 sorbitan monolaurate Drugs 0.000 description 1
- 229940035048 sorbitan monostearate Drugs 0.000 description 1
- 239000001589 sorbitan tristearate Substances 0.000 description 1
- 235000011078 sorbitan tristearate Nutrition 0.000 description 1
- 229960004129 sorbitan tristearate Drugs 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D191/00—Coating compositions based on oils, fats or waxes; Coating compositions based on derivatives thereof
-
- 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
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/04—Oxygen-containing compounds
- C08K5/10—Esters; Ether-esters
- C08K5/101—Esters; Ether-esters of monocarboxylic acids
- C08K5/103—Esters; Ether-esters of monocarboxylic acids with polyalcohols
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/02—Emulsion paints including aerosols
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/20—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes for coatings strippable as coherent films, e.g. temporary coatings strippable as coherent films
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Geochemistry & Mineralogy (AREA)
- Dispersion Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Paints Or Removers (AREA)
- Surface Treatment Of Glass (AREA)
- Detergent Compositions (AREA)
Abstract
The present invention relates to formulations for improving the appearance of glass surfaces, particularly the exterior surfaces of glass containers. More particularly, the present invention relates to a scratch-off masking coating solution for glass bottles that enhances appearance.
Description
The present invention relates to formulations for improving the appearance of glass surfaces, particularly the exterior surfaces of glass containers. More particularly, the present invention relates to a scratch-off masking coating solution for glass bottles that enhances appearance.
Glass articles, such as recyclable bottles, are processed many times during manufacturing, inspection, filling, shipping, cleaning, and the like. During such processing, the bottles are contacted with various mechanical devices (e.g., conveyor belts, inspection devices, and the like) and with other glass containers (e.g., bottles, cans, and the like) and surfaces (e.g., boxes, racks, and the like). This high degree of contact leads to damage by cracking, scratching, or other imperfections of the surface.
The use of scratch or abrasion masking agents on glass containers is known. Such masking agents desirably mask wear and exhibit acceptable durability and surface properties. Desirable properties of the wear masking agent include water resistance and durability, while being non-toxic and removable in alkaline bottle cleaning operations.
The variety of designs for the handling, cleaning and filling operations of glass bottles results in limitations in the applicability of prior art coating methods. The protective coating is applied to glass containers in a glass plant during the manufacturing process in a hot end (hot end) process and/or a cold end (cold end) process. In single-use glass containers, such protective coatings are sufficient to protect against abrasion during the life of the container.
For recyclable glass containers that can be cleaned and refilled (e.g., 20 to 60 or more times), the original protective coating applied at the glass plant is washed away and loses protection. As the number of recycling cycles increases, wear also increases, which results in an undesirable appearance.
Masking solutions can be used to improve the appearance of the bottle. Ideally, the masking solution should be food grade-like, not cause any skin irritation, and not attack the label applied on the container, however, this is not always the case. Furthermore, it was observed that some masking formulations showed phase separation during storage, especially during warm conditions. In case of formulation phase separation, the composition of the prepared coating solution will show high variation in the concentration of the ingredients, since small amounts from the bulk are mixed from time to time with the solvent (water) used for preparing the coating solution. This will have a large impact on the effectiveness of the applied solution and will cause a risk of producing a product that is not suitable for sale, since the coating does not reach too high a coating load, which results in an unacceptable feel and/or appearance. Therefore, there is a need for homogeneous formulations that have good storage stability, are food contact-like, and show homogeneity on storage. Today, commercially available products do not meet all these criteria.
It is therefore a primary object of the present invention to provide a stable formulation for preparing the following solutions: the solution is to be applied onto containers and in particular onto recyclable containers, in order to refresh or mask the white reflective bands (frayed bands) that appear at the contact areas of the containers with the containers (or other containers with equipment or surfaces) after several trips (trip, passes) of the recyclable glass containers, due to the intense (intense) contact of the glass with the glass (or, as explained before, glass with equipment and the like), mainly during the filling process.
It is another object of the present invention to provide a coating process comprising the step a) of applying the solution as described above to the surface of a glass container (e.g. a bottle). The process allows the visual aspect of such containers to be repaired, as the presence of the wear strip severely detracts from the appearance of the container.
It has now surprisingly been found that the above objects are met, wholly or partly, with the particular formulations of the invention, which will now be described in more detail below.
In the present invention, when a range is referred to as "from x to y" or "x to y," it is intended to include the upper and lower limits of that range, which is equivalent to at least x and up to y.
Accordingly, the present invention relates to improved formulations and improved processes for masking containers.
According to a first aspect, the present invention relates to a formulation comprising:
-at least mineral oil;
-at least a sorbitan ester;
-2 to 20% by weight of water, hydrogen peroxide, or mixtures thereof, preferably higher than 3 to 20% by weight of water, hydrogen peroxide, or mixtures thereof, relative to the weight of the sorbitan ester; the water optionally comprises up to 30% by weight of hydrogen peroxide relative to the content of water.
By "mineral oil" it is understood one or more alkanes (aliphatic and/or cyclic) coming from mineral sources, in particular from petroleum distillates. Mineral oils may be the product of crude oil refining, and may also be extracted from coal, wood, and oil shale. Preferred mineral oils are saturated C8-C22 hydrocarbons, which are linear or branched or naphthenic oils. Particularly preferred are saturated C8-C14 hydrocarbons.
The mineral oil of the present invention may be liquid at temperatures above (above) -5 ℃, more preferably at temperatures above 0 ℃ and even more preferably at temperatures above 10 ℃.
Preferably, the mineral oil is colorless.
Preferably, the mineral oil is odorless, and more preferably colorless and odorless.
Preferably, the mineral oil of the invention is classified as E905 a, as defined by regulation No. (EC) 1333/2008 for food additives at 2008, 12, 16 of the european parliament and council.
Preferably, the mineral oil has a viscosity of less than 100mpa.s, preferably less than 50mpa.s at 20 ℃. A low viscosity is preferred, since, in the case of high viscosities, the mobility on the glass surface is limited. In addition, the high viscosity results in a more greasy feel.
The viscosity can be measured using a Brookfield viscometer equipped with a spindle at a temperature of 20 ℃ for 1000s-1The shear rate of (a) was measured.
Preferably, for safety reasons, the mineral oil has a flash point higher than 150 ℃, more preferably higher than 160 ℃ and even more preferably higher than 175 ℃. Preferably, the at least one mineral oil is selected from: catenex T121 (supplier: Shell), Sipmed 20 (supplier: SIP), Pioneer 2055 (supplier: Klaus Dahleke), Purity base oil 1020 (supplier: Petro Canada), Puretol 11D (supplier: Petro Canada), Blandol XT (supplier: Sonneborn), and mixtures thereof.
Preferably, the formulation comprises from 75 to 94 wt%, preferably from 80 to 90 wt% mineral oil, based on the weight of the formulation.
Preferably, the at least one sorbitan ester (alkoxylated or not alkoxylated) is selected from the group consisting of sorbitan monostearate, sorbitan tristearate, sorbitan monolaurate, ethoxylated sorbitan ester (polysorbate), propoxylated sorbitan ester, sorbitan monooleate and combinations thereof. Preferably, the at least one sorbitan ester is a monooleate, alone or in combination with at least one other sorbitan ester.
Since the formulation is in the present invention a coating for glass containers in the food and beverage industry, the surfactant is preferably selected from sorbitan esters listed in sections E491 to E496 of european food additive list E number.
Preferably, the sorbitan ester is an alkoxylated sorbitan ester, more preferably an ethoxylated sorbitan ester and/or a propoxylated sorbitan ester, and even more preferably an ethoxylated sorbitan ester.
Preferably, the at least one ethoxylated sorbitan ester is selected from the group consisting of ethoxylated sorbitan monostearate, ethoxylated sorbitan tristearate, ethoxylated sorbitan monolaurate, ethoxylated sorbitan ester (polysorbate), ethoxylated propoxylated sorbitan ester, ethoxylated sorbitan monooleate and combinations thereof. Preferably, the at least one ethoxylated sorbitan ester is an ethoxylated monooleate alone or together with at least one other sorbitan ester (alkoxylated or not alkoxylated).
Preferably, the sorbitan is selected from:
sorbitan monooleate 5EO (Sorbitan Mono Oleate 5EO) (SMO-5EO)
A mixture of Sorbitan monooleate (Sorbitan Mono Oleate) (SMO) and Sorbitan monooleate 20EO (Sorbitan Mono Oleate 20EO) (SMO-20EO),
-or mixtures thereof.
Sorbitan monooleate 5EO (SMO-5EO) is particularly preferred.
Sorbitan monooleate 5EO (SMO-5EO) is used as SURFALLINE
Commercially available (from Arkema).
Sorbitan Monooleate (SMO) is available as Span
Commercially available (from Croda). Sorbitan monooleate 20EO (SMO-20EO) is available as SURFALLINE
(from Arkema) or Tween
Commercially available (from Croda).
Preferably, the mixture of sorbitan monooleate and sorbitan monooleate 20EO comprises from 35 to 60% by weight sorbitan monooleate and from 40 to 65% by weight sorbitan monooleate 20EO (relative to the total weight of the mixture), preferably from 40 to 55% by weight sorbitan monooleate and from 45 to 60% by weight sorbitan monooleate 20EO (relative to the total weight of the mixture), and even more preferably from 45 to 50% by weight sorbitan monooleate and from 50 to 55% by weight sorbitan monooleate 20EO (relative to the total weight of the mixture).
Preferably, the at least one sorbitan ester has an HLB of from 8 to 12, preferably from 9 to 11, and even more preferably from 9.5 to 10.5. When the formulation comprises more than one surfactant, it is to be understood that the surfactant as a whole should have an HLB of from 8 to 12, preferably from 9 to 11, and even more preferably from 9.5 to 10.5.
Preferably, the formulation comprises 6 to 20 wt.%, preferably 10 to 20 wt.% of the sorbitan ester, based on the weight of the formulation.
Preferably, the formulation of the invention comprises from 2 to 20% by weight of water, preferably from above 3 to 20% by weight of water, relative to the weight of the sorbitan ester; the water optionally comprises up to 30% by weight of hydrogen peroxide relative to the content of water.
Preferably, the formulation of the invention comprises from 2 to 20% by weight of water, preferably from above 3 to 20% by weight of water, relative to the weight of the sorbitan ester. The formulation of the invention comprises from 0.12% to 4% by weight of water, preferably from above 0.18% to 4% by weight of water, relative to the total weight of the formulation; the water optionally comprises up to 30% by weight of hydrogen peroxide relative to the content of water.
When the water contains hydrogen peroxide, the content of hydrogen is preferably up to 30% by weight (relative to the content of water), more preferably, the content of hydrogen is preferably up to 20% by weight (relative to the content of water).
Water is particularly preferred.
Preferably, the water is demineralized water.
Alternatively, hydrogen peroxide is used, which allows to avoid coloration of the solution.
Advantageously, the hydrogen peroxide of the present invention is in liquid form.
Specifically, the formulations of the present invention comprise:
-at least one mineral oil having a viscosity lower than 100mpa.s, preferably lower than 50mpa.s at 20 ℃;
-at least a sorbitan ester selected from:
sorbitan monooleate 5EO (SMO-5EO),
-a mixture of sorbitan monooleate and sorbitan monooleate 20EO,
-or mixtures thereof
-2% to 20% by weight of water, preferably higher than 3% up to 20% of water, with respect to the sorbitan ester.
Particularly preferred formulations of the invention comprise:
-from 75 to 94% by weight, preferably from 80 to 90% by weight, of at least one mineral oil having a viscosity at 20 ℃ lower than 100mpa.s, preferably lower than 50mpa.s, relative to the weight of the formulation;
-6 to 20% by weight, preferably 10 to 20% by weight, of a sorbitan ester selected from:
sorbitan monooleate 5EO (SMO-5EO)
-a mixture of sorbitan monooleate and sorbitan monooleate 20EO,
-or mixtures thereof
-2 to 20% by weight of water, preferably higher than 3 to 20% by weight of water, with respect to the sorbitan ester.
The formulation of the present invention may comprise one or more additional additives, preferably selected from the group consisting of biocides, bactericides, preservatives, ester alcohols, glycol ethers, dyes, emulsion destabilizers, fragrances, odorants, UV absorbers, light absorbers, impact absorbers, surfactants other than sorbitan esters, oils other than mineral oils, and the like.
Preferably, the additional additives do not affect the homogeneity of the solution. Such additives may be added in the formulation and/or in the ready-to-use coating solution and/or in the aqueous phase or water used to form the coating solution. According to a preferred embodiment, the formulation used in the present invention does not contain any additives and preferably consists in a mixture of at least one mineral oil, at least one sorbitan ester (such as those previously described) and water.
Preferably, the mineral oil and sorbitan ester of the present invention are mutually soluble.
Moreover, the preferred formulations are liquid formulations, solid formulations are not convenient as scratch masking coatings.
The invention also relates to a process for the preparation of a formulation as defined above, comprising the step of mixing, in any order, at least one oil as defined above, at least one surfactant as defined above and water as defined above to obtain a formulation.
Preferably, the formulation of the present invention is used to prepare a coating solution (also known as coating dilution), which is preferably an emulsion. Thus, according to another aspect, the present invention relates to the use of a formulation according to any one of the preceding claims for the preparation of a coating solution. The invention also relates to a coating solution comprising a formulation as defined above.
The coating solution may comprise polyethylene glycol, alcohols, ethers, glycol ethers, polyethers, and mixtures thereof.
Preferably, the coating solution is in the form of an oil-in-water emulsion, wherein the oil phase comprises, preferably consists of, a formulation as defined hereinbefore.
In the present invention, an "oil-in-water emulsion" is understood to have an aqueous continuous phase in which an oil phase is dispersed or emulsified, wherein the oil phase comprises the formulation of the present invention.
Typically, the coating solution is prepared by mixing the formulation as defined above with water.
Preferably, the aqueous phase is water.
The formulation of the present invention may be provided as a concentrate which is mixed with water by the end user to form a coating solution (preferably an emulsion), or the formulation of the present invention may be provided as a ready-to-use coating solution (which has been prepared by mixing it with water).
The invention therefore also relates to a process for the preparation of a coating solution comprising the step of mixing a formulation as defined above with an aqueous phase, preferably water.
The invention also covers a coating solution prepared by mixing water with at least one surfactant as defined above and then adding and mixing at least one oil as defined above, or a coating solution prepared by mixing water with at least one oil as defined above and then adding and mixing at least one surfactant as defined above.
In other words, the coating solution to be applied to the glass surface can be prepared by: at least one oil, at least one surfactant and water are mixed in any order to obtain a coating solution. The invention therefore also relates to a process for the preparation of a coating solution, comprising the following steps: at least one oil, at least one surfactant, and water are mixed in any order to obtain a coating solution. The preferred concentration of the formulation (oil phase) in the coating solution is from about 2 to 20 wt%, preferably from about 3 to 10 wt%, more preferably from 3 to 8 wt% of the total weight of the coating solution.
When the coating solution is an oil-in-water emulsion, the mixing energy dedicated to the preparation of the aforementioned oil-in-water emulsion should be set such that the emulsion is stable for a period of time ranging from seconds to hours, and preferably for a period of time suitable for providing a homogeneous working liquid to the applicator. Thus, the time period depends on the flow line, the applicator, and the like.
"stable emulsion over a period of time" means: during a time period ranging from seconds to hours, and preferably for a time period suitable for providing a homogeneous working liquid to the applicator, no macroscopic phase separation occurs between the oil and the water (almost complete breaking of the emulsion). The emulsions of the present invention have limited stability, meaning that the emulsion will break over a time scale much longer than a few hours, and preferably after a period of time suitable to provide a homogeneous working fluid to the applicator. However, a slight coalescence of oil droplets, or a slight flocculation, or a slight creaming (creaming) may already start to occur at the microscopic level during a time period ranging from seconds to hours and during a time period suitable for providing a still homogeneous working liquid to the applicator.
Any mixing means may be employed to achieve an oil-in-water emulsion from water and the aforementioned formulation. Typical mixers or emulsifying devices are those known in the art and, as non-limiting examples, dynamic mixers, static mixers, ultrasonic mixing devices, pumps, and the like may be mentioned.
According to a further aspect, the present invention relates to the use of a formulation or coating solution as defined above as a scratch-masking coating on a glass surface.
According to a further aspect, the invention relates to a coating process comprising the following step a): the formulation or coating solution as defined above (preferably the coating solution as defined above) is applied to the glass surface.
The coating process of the present invention involves masking scratches and abrasions on the glass surface, especially the surface of glass containers, which adversely affect their commercial value. For example, scratching or abrasion on glass bottles (especially on recyclable glass bottles for beverages) results in an undesirable hazy or white appearance, which reduces the value of the bottle. The process of the present invention provides a coating for glass containers that masks such scratches or abrasions.
The glass surface is preferably a glass container surface, and more preferably a recyclable glass bottle.
The emulsion (i.e., the formulation of the present invention or the coating solution of the present invention) may be supplied via a method selected from spraying, dipping, or any other contacting method (wiping (sponge) and the like). Spray application is preferred.
In other words, the coating applicator may be a brush, a capillary, a sponge (sponge), a fiber, or the like. In this case, the coating material is applied to the surface of the container via the contact area between the coating applicator and the container surface.
Preferably, during step a), the glass container is at ambient temperature, i.e. at a temperature of from 5 to 40 ℃.
The emulsion was applied to the outer surface of the glass container.
The emulsion may be applied to at least a portion of the outer surface of the glass container, or the entire outer surface of the glass container.
When the process is for coating glass containers, it may further comprise at least one, preferably two, more preferably three, more preferably four, and even more preferably all of the following steps before step a):
1) preparing a formulation or coating solution as defined previously;
2) cleaning the glass container to be coated;
3) applying a lubricant on one or more portions of the glass container or on the entire outer surface of the glass container;
4) filling and capping the glass container; and
5) the glass container was labeled.
If at least two steps are performed, they are preferably performed in the order (from 1 to 5) as indicated above.
The cleaning of the glass container can be carried out according to any method known in the art and for example using water, preferably hot water. The water may comprise one or more detergents, for example an alkali (such as sodium hydroxide).
After cleaning, at least one lubricant may also be applied to the outer surface of the glass container. Such lubricants are known in the art, for example as supplied by Arkema
500。
The glass containers are then filled and capped, again according to known methods, with a cold, warm or hot liquid, preferably a hot liquid.
The labelling can be effected before or after step a).
Thus, the step of labeling may be accomplished prior to the step of scratch-masking coating.
Step a) may be the last step before newly cleaned, refilled and labeled glass containers are again marketed and sold to customers.
No special equipment is required to carry out the process of the invention, which means that any and all known equipment in the art is convenient for the use and process of the invention.
The equipment of the present application typically includes mixing and storage vessels, pumps, delivery and feed lines, spray equipment, and control and monitoring equipment.
Preferably, the apparatus comprises: one or more mixing vessels; a metering and circulating pump; a mixing unit (which may be the pump itself); a circulation pipe; application devices, such as spray devices; and the like.
The device may also comprise control means aimed at monitoring the application process of the scratch-masking emulsion. Such control means may be, for example, optical means which detect the presence of the container in front of the applicator and/or the presence and quantity of fraying bands or scratches in order to apply a minimum amount of emulsion on the container for optimum efficacy. According to a preferred aspect, the control device is monitored via a computer which can interact with the dosing pump and the applicator.
Still according to a preferred embodiment, the aforementioned device can be incorporated into a "scratch-off shelter" cabinet that can be easily adapted to existing filling lines that include the necessary equipment for washing, filling, capping and labelling glass containers, typically recyclable glass bottles.
The invention also relates to a glass surface, preferably a glass container, and even more preferably a glass bottle, obtainable by the process of the invention. The glass surface obtainable by the process of the invention provides good masking, improves the tactile experience (especially reducing the possibility of greasy touch (change) when applied in excess) and does not show label sensitivity (i.e. no extraction of dye from the print and no deformation of the label).
The invention is illustrated in more detail in the following non-limiting examples.
Examples
The following examples were carried out as follows:
the parameters fixed are as follows:
-mixing conditions, power and mixing time;
-the conditions of the bottle;
-spray conditions, spray volume, spray tool conditions;
-the amount of diluted water used for the coating solution;
-storage conditions.
More precisely:
concentration of formulation in aqueous coating solution (wt%): 5.0-7.5;
hardness of water: 3 ℃ DH;
-bottle temperature: 20 ℃;
-spray amount per bottle: 0.5mL per vial (upper fray zone only);
-storage conditions: room temperature, 1 hour;
-a mixing device:
this was continued for 5 minutes at 20% stirring power.
The following conditions were used to apply the various formulations:
-spray gun (application gun): air-guided spray coating (P)Guiding air2 bar, PSpraying of paint1.5 bar);
-spray pattern: horizontal;
-spray volume: 0.5mL, directed only at the shoulder wear zone;
-bottle rotation: plus or minus 30 rpm;
-bottle type: coca
25cL；
-number of bottles: 5 pieces of the Chinese herbal medicines.
1) Improved properties of the compositions of the invention
-the compositions tested were:
-composition a:
140
composition 1 (according to the invention): 84% by weight of Blankol XT, 15% by weight of Surfaline SE-81 and 1% by weight of water
A. coating Properties
At 24 hours after application, the bottles were inspected for scratch masking efficacy by visually observing the shoulder abrasion bands of the bottles. For each vial, a label from 0 to 5 is given:
for masking efficiency, "0" means no coating and "5" means 100% masked;
for the tactile experience, "0" means a greasy appearance with visible droplets and "5" means instructing a pleasant glassy appearance.
The results are the sum of the markings obtained from the 3 coated bottles and are shown in table 1 below.
TABLE 1
These results show that the compositions of the present invention provide better masking than commercially available compositions and, in addition, improve the tactile experience (especially reducing the likelihood of a greasy touch when applied in excess (chance)).
Label sensitivity:
will be provided with
The BEER label was placed between filter papers and saturated with 10 wt.% of composition a and 1. The wet label placed between the filter papers was held between the two glass sheets for 24 hours.
For each vial, a label from 0 to 5 is given:
for smear, "5" means no smear and "0" means high smear;
for ghosting (ghost), "5" means no ghost impression and "0" means a strong ghost impression.
The results are set forth in Table 2 below:
TABLE 2
| Formulations | Wiping dirty | Double images | Sigma score |
| Composition A | 3 | 0 | 3 |
| Composition 1 | 5 | 3 | 8 |
2) Stabilization Using Blandol XT
The following compositions were prepared as described above and tested for their stability at room temperature, 40 ℃ and 0 ℃.
The results are shown in tables 3 and 4 below.
TABLE 3
TABLE 4
These results show that the compositions of the present invention do not exhibit phase separation at room temperature conditions, 40 ℃ and 0 ℃.
3) Stability with other oils
The same experiment was repeated with other oils:
a composition comprising 85 wt% oil, 15 wt% SURFALINE SE81 and 1% water was prepared as previously described.
The following oils were tested:
TABLE 5
| Suppliers of goods | Trade name | Viscosity (mPa.s) at 20 DEG C |
| SIP | SIPMED 20 | 44 |
| Shell | Catenex T121 | 42 |
| Risella X45 | 15 | |
| Petro Canada | Puretol 11D Bulk | 42 |
| Purity 1020 base oil | 47 | |
| Sonneborn | Parol | 170 |
No separation was observed at room temperature conditions, 0 ℃ and 40 ℃ except for the Parol oil, which had a viscosity of 170mpa.s, in the case of the Parol oil, phase separation was observed for all these temperatures.
4) Composition comprising hydrogen peroxide
Examples 1 and 2 were reproduced, however, in compositions 1 to 8, hydrogen peroxide was used instead of water. Results similar to those of examples 1 and 2 were obtained.
Claims (14)
1.A formulation comprising:
-at least mineral oil;
-at least a sorbitan ester;
-2 to 20% by weight of water, hydrogen peroxide, or a mixture thereof, preferably higher than 3% to 20% by weight of water, hydrogen peroxide, or a mixture thereof, relative to the weight of sorbitan ester; the water optionally comprises up to 30% by weight of hydrogen peroxide relative to the content of water.
2. Formulation according to claim 1, wherein the mineral oil has a viscosity of less than 100mpa.s, preferably less than 50mpa.s at 20 ℃.
3. Formulation according to any one of claims 1 or 2, comprising from 75 to 94% by weight, preferably from 80 to 90% by weight, of mineral oil, relative to the weight of the formulation.
4. A formulation according to any one of the preceding claims, wherein the sorbitan ester is selected from:
sorbitan monooleate 5EO,
-a mixture of sorbitan monooleate and sorbitan monooleate 20EO,
-or mixtures thereof.
5. A formulation according to any one of the preceding claims, comprising from 6 to 20 wt%, preferably from 10 to 20 wt%, of the sorbitan ester, based on the weight of the formulation.
6. A formulation according to any one of the preceding claims, wherein said at least sorbitan ester has an HLB of from 8 to 12, preferably from 9 to 11, and even more preferably from 9.5 to 10.5.
7. The formulation according to any one of the preceding claims, further comprising one or more additional additives, preferably selected from biocides, bactericides, preservatives, ester alcohols, glycol ethers, dyes, emulsion destabilizers, fragrances, odorants, UV absorbers, light absorbers, impact absorbers, surfactants other than sorbitan esters, oils other than mineral oils, and the like.
8. Use of a formulation according to any of the preceding claims for the preparation of a coating solution.
9. A coating solution comprising the formulation of any one of the preceding claims 1-7.
10. The coating solution of claim 9, wherein the concentration of the formulation defined in any one of claims 1-8 is from about 2 to 20 wt%, preferably from about 3 to 10 wt%, of the total weight of the coating solution.
11. Use of the formulation according to any one of claims 1 to 7 or the coating solution as defined in claim 9 or 10 as a scratch-masking coating on a glass surface.
12. Coating process comprising at least step a): applying a formulation as defined in any one of claims 1 to 7 or a coating solution as defined in any one of claims 9 or 10 to a glass surface.
13. The coating process as defined in claim 12 for coating glass containers, which coating process comprises at least one, preferably two, more preferably three, more preferably four, and even more preferably all of the following steps before step a):
1) preparing a formulation as defined in any one of claims 1 to 8 or a coating solution as defined in claim 9 or 10;
2) cleaning the glass container to be coated;
3) applying a lubricant on one or several parts of the glass container or on the entire outer surface of the glass container;
4) filling and covering the glass container; and
5) the glass containers were labeled.
14. Glass surface obtainable by the process as defined in claim 12 or 13, preferably a glass container, and even more preferably a glass bottle.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR1874020 | 2018-12-21 | ||
| FR1874020A FR3090677B1 (en) | 2018-12-21 | 2018-12-21 | SCRATCH MASKING COATING SOLUTION FOR GLASS CONTAINERS |
| PCT/EP2019/086604 WO2020127922A1 (en) | 2018-12-21 | 2019-12-20 | Scratch masking coating solution for glass containers |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112585099A true CN112585099A (en) | 2021-03-30 |
| CN112585099B CN112585099B (en) | 2024-02-02 |
Family
ID=67107598
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201980054855.3A Active CN112585099B (en) | 2018-12-21 | 2019-12-20 | Scratch masking coating solution for glass containers |
Country Status (9)
| Country | Link |
|---|---|
| EP (1) | EP3898543A1 (en) |
| CN (1) | CN112585099B (en) |
| BR (1) | BR112021000925A2 (en) |
| CO (1) | CO2021004970A2 (en) |
| FR (1) | FR3090677B1 (en) |
| MX (1) | MX2021003257A (en) |
| PH (1) | PH12021550275A1 (en) |
| WO (1) | WO2020127922A1 (en) |
| ZA (1) | ZA202101058B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR3129673B1 (en) | 2021-12-01 | 2024-03-08 | Arkema France | Formulation for coating glass containers |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2839464A (en) * | 1954-02-16 | 1958-06-17 | Exxon Research Engineering Co | Textile oil |
| GB1150957A (en) * | 1967-07-04 | 1969-05-07 | Ball Brothers Co Inc | Lubricous Coating for Glass |
| US4370385A (en) * | 1979-07-18 | 1983-01-25 | Kirin Beer Kabushiki Kaisha | Masking of abrasion injury on glass articles |
| WO2007141475A2 (en) * | 2006-06-05 | 2007-12-13 | Reckitt & Benckiser (Uk) Limited | Emulsion compositions comprising a mineral oil and an oil soluble polymer usable as polishes and aerosols comprising the same |
| CN101724501A (en) * | 2008-10-31 | 2010-06-09 | Mexel工业公司 | Liquid and stable oil-in-water or water-in-oil emulsion with a vegetable oil or mineral oil base |
| CN102325731A (en) * | 2008-12-23 | 2012-01-18 | 阿肯马弗利辛恩公司 | Scratch masking coating for glass containers |
| CN102781865A (en) * | 2009-12-14 | 2012-11-14 | 阿肯马弗利辛恩公司 | Process for scratch masking of glass containers |
-
2018
- 2018-12-21 FR FR1874020A patent/FR3090677B1/en active Active
-
2019
- 2019-12-20 EP EP19828755.9A patent/EP3898543A1/en active Pending
- 2019-12-20 WO PCT/EP2019/086604 patent/WO2020127922A1/en unknown
- 2019-12-20 CN CN201980054855.3A patent/CN112585099B/en active Active
- 2019-12-20 MX MX2021003257A patent/MX2021003257A/en unknown
- 2019-12-20 BR BR112021000925-6A patent/BR112021000925A2/en unknown
-
2021
- 2021-02-04 PH PH12021550275A patent/PH12021550275A1/en unknown
- 2021-02-16 ZA ZA2021/01058A patent/ZA202101058B/en unknown
- 2021-04-19 CO CONC2021/0004970A patent/CO2021004970A2/en unknown
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2839464A (en) * | 1954-02-16 | 1958-06-17 | Exxon Research Engineering Co | Textile oil |
| GB1150957A (en) * | 1967-07-04 | 1969-05-07 | Ball Brothers Co Inc | Lubricous Coating for Glass |
| US4370385A (en) * | 1979-07-18 | 1983-01-25 | Kirin Beer Kabushiki Kaisha | Masking of abrasion injury on glass articles |
| WO2007141475A2 (en) * | 2006-06-05 | 2007-12-13 | Reckitt & Benckiser (Uk) Limited | Emulsion compositions comprising a mineral oil and an oil soluble polymer usable as polishes and aerosols comprising the same |
| CN101724501A (en) * | 2008-10-31 | 2010-06-09 | Mexel工业公司 | Liquid and stable oil-in-water or water-in-oil emulsion with a vegetable oil or mineral oil base |
| CN102325731A (en) * | 2008-12-23 | 2012-01-18 | 阿肯马弗利辛恩公司 | Scratch masking coating for glass containers |
| CN102781865A (en) * | 2009-12-14 | 2012-11-14 | 阿肯马弗利辛恩公司 | Process for scratch masking of glass containers |
Also Published As
| Publication number | Publication date |
|---|---|
| ZA202101058B (en) | 2023-10-25 |
| MX2021003257A (en) | 2021-05-12 |
| FR3090677A1 (en) | 2020-06-26 |
| PH12021550275A1 (en) | 2021-10-11 |
| EP3898543A1 (en) | 2021-10-27 |
| CN112585099B (en) | 2024-02-02 |
| BR112021000925A2 (en) | 2021-04-27 |
| WO2020127922A1 (en) | 2020-06-25 |
| FR3090677B1 (en) | 2021-11-19 |
| CO2021004970A2 (en) | 2021-04-30 |
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