EP3056264A1 - Procédé de teinture et machine de coloration - Google Patents
Procédé de teinture et machine de coloration Download PDFInfo
- Publication number
- EP3056264A1 EP3056264A1 EP15155116.5A EP15155116A EP3056264A1 EP 3056264 A1 EP3056264 A1 EP 3056264A1 EP 15155116 A EP15155116 A EP 15155116A EP 3056264 A1 EP3056264 A1 EP 3056264A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- paint
- paste
- complementary
- tinting
- base
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 38
- 239000003973 paint Substances 0.000 claims abstract description 153
- 239000000203 mixture Substances 0.000 claims abstract description 63
- 230000000295 complement effect Effects 0.000 claims abstract description 59
- 239000000049 pigment Substances 0.000 claims abstract description 37
- 238000002360 preparation method Methods 0.000 claims abstract description 36
- 239000003086 colorant Substances 0.000 claims abstract description 30
- 239000000945 filler Substances 0.000 claims description 9
- 239000004615 ingredient Substances 0.000 claims description 7
- 239000007788 liquid Substances 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 2
- 238000012546 transfer Methods 0.000 claims description 2
- 238000007796 conventional method Methods 0.000 description 5
- 239000000047 product Substances 0.000 description 4
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 3
- 238000010561 standard procedure Methods 0.000 description 3
- 239000000470 constituent Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000654 additive Substances 0.000 description 1
- 239000003139 biocide Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000004590 computer program Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008447 perception Effects 0.000 description 1
- XOFYZVNMUHMLCC-ZPOLXVRWSA-N prednisone Chemical compound O=C1C=C[C@]2(C)[C@H]3C(=O)C[C@](C)([C@@](CC4)(O)C(=O)CO)[C@@H]4[C@@H]3CCC2=C1 XOFYZVNMUHMLCC-ZPOLXVRWSA-N 0.000 description 1
- 239000004408 titanium dioxide Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F33/00—Other mixers; Mixing plants; Combinations of mixers
- B01F33/80—Mixing plants; Combinations of mixers
- B01F33/84—Mixing plants with mixing receptacles receiving material dispensed from several component receptacles, e.g. paint tins
- B01F33/846—Mixing plants with mixing receptacles receiving material dispensed from several component receptacles, e.g. paint tins using stored recipes for determining the composition of the mixture to be produced, i.e. for determining the amounts of the basic components to be dispensed from the component receptacles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F2101/00—Mixing characterised by the nature of the mixed materials or by the application field
- B01F2101/30—Mixing paints or paint ingredients, e.g. pigments, dyes, colours, lacquers or enamel
Definitions
- the present invention relates to a tinting method and tinting machine for preparation of ready-to-use paint mixtures.
- 'Tinting' refers to automatic preparation of a paint having a selected color (e.g. a color having a designated symbol/number, and selected from a colors list prepared by a commercial paint company). Said preparation is mainly performed by entering a designated symbol/number referring to said selected color to a tinting machine (usually operated using a computer); then the tinting machine introduces pre-determined or calculated amounts of several liquid constituents into a paint container (e.g. a paint can) automatically and the liquid constituents in the container are mixed; thus a paint mixture is obtained automatically.
- a paint container e.g. a paint can
- Commonly regarded properties of a paint mixture include pH, density (unit of which is e.g. g/mL), gloss, hiding power (unit of which is e.g.
- a paint mixture prepared for a symbol/number selected from a list shall exhibit properties around expected values. For instance, color of two paint samples having same symbol/number/product code (i.e. two samples obtained from two individual preparations of same paint product), from several paint cans which are prepared on different days or using different tinting machines, should not be perceived (e.g. by consumer) considerably different from each other.
- the difference between two colors is quantified as 'delta E' (dE). Color differences with dE values lower than 1 are considered as just noticeable, or barely noticeable or practically not noticeable, thus such dE values for two individual paint samples are required to be below 1.
- Tinting machines and methods in state of the art provide preparation of ready-to-sell paint mixtures in containers (e.g sealable paint cans).
- containers e.g sealable paint cans.
- a customer orders a can of paint with color selected from a list where different colors are listed in respective symbols/numbers/product codes, and the customer decides also the size of the container, e.g. a sealable paint container for containing up to a maximum 15 liters paint.
- an operator enters the color selection and size to a tinting machine usually over a digital interface or a computer program interface.
- the tinting machine automatically loads a constant amount of a base into the can. Said constant amount is pre-programmed into the machine for each can size selection, such that total volume of a paint mixture does not exceed the capacity of the can.
- one or more pigment pastes can be added into the can for obtainment of the selected color upon mixing the base and pigment paste(s).
- the added amount(s) of the pigment paste(s) are calculated beforehand and pre-programmed into the machine for each can size selection, such that for a certain paint color, paint mixtures prepared in having different sizes contain different respective amounts of bases, and respectively different amounts of pigment paste(s) are required for obtainment of said certain color for each can size i.e. for each base amount. It is obvious that, in order to prepare paint mixtures of different colors, different amounts of pigment paste(s) are to be mixed with a certain volume of a base.
- Primary object of the present invention is to overcome the abovementioned shortcomings of the prior art.
- Another object of the present invention is to provide a tinting method wherein volumetric consistency by preparation of paint mixtures is achieved for a paint of any color.
- Yet another object of the present invention is to provide a tinting apparatus wherein volumetric consistency by preparation of paint mixtures is achieved for a paint of any color.
- the present invention proposes a tinting machine pre-programmed for preparation of paint mixtures of various target colors in a paint container having a size selected from a set of various sizes designated for various target volumes of paint mixtures, which target volumes being pre-programmed to said tinting machine; said paint container being pre-loaded with a base having a certain volumetric amount designated in accordance with said size, and said tinting machine comprising a plurality of pigment paste reservoirs for containing pigment pastes having various colors, and for transferring said pigment pastes into paint containers; wherein the tinting machine further comprises a complementary paste reservoir for containing a complementary paste and for transferring said complementary paste into paint containers, such that, in use, the complementary paste is dispersed in a pre-programmed complementary volumetric amount and thereby same final volume of paint mixture is obtained, said final volume is equal to the target volume, and is valid for paint mixtures of all colors.
- the present invention further proposes a tinting method for preparation of paint mixtures having a final volume, which is valid for all colors.
- the present invention proposes a tinting method and machine for preparation of ready-to-use paint mixtures.
- the present invention proposes a tinting method and machine for preparation of paint mixtures in consistent volumetric amounts, regardless of the color of a ready-to-sell can of paint.
- Volumetric amount of a paint mixture to be filled into a paint can is pre-determined such that said amount does not exceed the capacity of the paint can; and various respective volumetric amounts are to be pre-determined for each size of paint cans for use in tinting.
- a tinting machine according to the present invention can be set for preparing paint mixtures to be sold in paint cans in various sizes. In accordance with customer order, a respective paint can having suitable size is selected for loading with paint mixture using the tinting method and machine according to the present invention.
- a target color pre-programmed to a tinting machine is entered and a selected can size is input to the tinting machine.
- a can to be used with the tinting method and machine according to the present invention is pre-loaded with a base having a pre-determined volume designated for the size of the can. Said pre-determined volume of base is same for a respective size of paint can, which is to be loaded with paint mixture having a color pre-programmed into the tinting machine.
- a pre-programmed amount of pigment paste(s) is introduced into the paint can for provision of target color to the paint mixture.
- the target color may necessitate introduction of one or more pigment paste of pre-calculated volumetric ratio(s) over base, i.e. pre-programmed amounts of said pigment paste(s) are mixed with base having pre-determined base volumes, where applicable.
- Consistent volume in final product i.e. in the ready-to-sell paint mixture, is obtained by introduction of an amount of a complementary paste into the paint can. Said amount varies for each target color and each can size; and is pre-determined and pre-programmed to the tinting machine; such that paint can having a certain size input/entered into the tinting machine, contains a consistent volume of paint mixture regardless of the target color.
- Provision of such volumetric consistency is especially of greater importance for paints prepared using a base providing low transparency, and moderate-to-high hiding power to the paints. That is because such high hiding power and low transparency is obtained with titanium dioxide (TiO 2 ) content of a base, which is a significant cost item in paint preparations; and paint preparations with high titanium dioxide content are difficult to remedy in case of ending up with an undesired color.
- TiO 2 titanium dioxide
- the properties of the complementary paste are to be compatible with those of the base, and those of the mixture of base and pigment paste(s). This can be achieved with a complementary paste having following preferred features:
- the complementary paste preferably comprises following ingredients in following weight percentages with respect to the total weight of the compensation paste:
- the paints with target colors which are light colors (i.e. having a L-value of 85 or higher, with regard to CIELab's lightness scale ranging the lightness between 0 and 100) prepared with admixing of pre-programmed amounts of pigment pastes ranging between 0 and 4% (v/v), more preferably between 0% and 3.5%, based on base volume, wherein the base having a high hiding power (i.e. 98% and higher, at 7 m 2 /L).
- light colors i.e. having a L-value of 85 or higher, with regard to CIELab's lightness scale ranging the lightness between 0 and 100
- pre-programmed amounts of pigment pastes ranging between 0 and 4% (v/v), more preferably between 0% and 3.5%, based on base volume, wherein the base having a high hiding power (i.e. 98% and higher, at 7 m 2 /L).
- said amount of pigment paste ranges between 3% and 6% (v/v), more preferably between 3.5% and 5% (v/v) based on base volume, wherein the base having a moderate hiding power (i.e. a hiding power thereof is at least 50% and lower than 98%, at 7 m 2 /L).
- Table 1 The volumetric amounts of ingredients used by preparation of samples 1 to 8 prepared according to above explained conventional tinting method are shown in Table 1.
- Columns 1 to 4 of Table 1 respectively correspond to sample ID numbers each having a respective target color, base volumes (L), total pigment paste volumes (L) to achieve the respective target colors, and total volume of samples obtained by mixing said bases with pigment pastes.
- final volumes of paint mixtures prepared according to the conventional method differ between target colors. Table 1.
- Table 2 The volumetric amounts of ingredients used by preparation of samples 1' to 8' prepared with to the method according to the present invention are shown in Table 2.
- Columns 1 to 5 of Table 2 respectively correspond to sample ID numbers each having a respective target color, base volumes (L), total pigment paste volumes (L) to achieve the respective target colors, complementary paste volumes (L) introduced for achieving a standard sample final volume for each sample; and total volume of samples obtained by mixing said bases with pigment pastes.
- final volumes of paint mixtures prepared with the method according to the present invention is valid for each target color, thus a consistent target volume is achieved for each sample.
- Table 2 Table 2.
- samples 1' to 8' have the same composition, thus in each of said samples a single complementary paste formulation was employed.
- Each sample ID number (1-8 or 1'-8') corresponds to another target color, and it was tested if samples prepared according to the present invention (samples 1' to 8') show properties comparable with samples prepared using conventional method (samples 1 to 8).
- dE color difference measured according to the version of DIN6174 valid in 1 February 2015
- hiding power measured according to the latest Turkish standard method TS EN ISO 6504-3 valid in 1 February 2015
- gloss measured using Micro TRI Glossmeter by BYK Gardner, according to the latest Turkish standard method TS 4318 EN ISO 2813 valid in 1 February 2015
- whiteness measured according to the latest Turkish standard method TS 7169 valid in 1 February 2015.
- Color differences (dE values) obtained for each corresponding sample pair e.g. samples 1 and 1'
- Table 3 The dE values being in the lower part of the interval 0 and 1 (i.e.
- Tables 4 and 5 comparatively show average values of several properties of samples prepared using conventional method, and average values of those properties after adding and mixing of complementary paste in a volumetric ratio of 1% based on the volumes of said samples prepared using conventional method.
- the samples 1 to 4 are interior paints, and samples 5 to 8 are exterior paints.
- Tables (Table 4 and 5) are prepared separately, since bases employed in preparation of interior and exterior paints are different. Admixing of complementary paste into samples 1-8 in a volumetric ratio of 1% with respect to based on the volumes of said samples prepared using conventional method did maintain the property values acceptable. Table 4. Effects of admixing complementary paste on sample properties (for samples 1 to 4).
- the present invention proposes a tinting machine pre-programmed for preparation of paint mixtures of various target colors in a paint container having a size selected from a set of various sizes designated for various target volumes of paint mixtures, which target volumes being pre-programmed to said tinting machine; said paint container being pre-loaded with a base having a certain volumetric amount designated in accordance with said size, and said tinting machine comprising a plurality of pigment paste reservoirs for containing pigment pastes having various colors, and for transferring said pigment pastes into paint containers; wherein the tinting machine further comprises a complementary paste reservoir for containing a complementary paste and for transferring said complementary paste into paint containers, such that, in use, the complementary paste is dispersed in a pre-programmed complementary volumetric amount and thereby same final volume of paint mixture is obtained, said final volume is equal to the target volume, and is valid for paint mixtures of all colors.
- the complementary paste has a pH value ranging between 7 and 9; and the quotient of hiding powers of base and of the complementary paste is within the range between 0.9 and 1.1.
- the complementary paste is aqueous, and comprises 50 to 70 weight percent of filler with respect to the total weight of the compensation paste.
- the base is optionally for interior paints, or for exterior paints.
- the base is a first base having a hiding power of at least 98%, or a second base having a hiding power of at least 50% and lower than 98%.
- the present invention further proposes a tinting method for preparation of a ready-to-sell liquid paint mixture in a paint container, said paint mixture having a target color pre-programmed into a tinting machine programmed for preparation of various paint mixtures having different target colors and one or more target volumes by implementing the method comprising the steps of:
- one or more pigment paste is automatically introduced into the paint container prior to or during the step c), and the amount of introduced complementary paste is pre-programmed such that the final volume of the ingredients inside the paint container is equal to target volume, by being the sum of volumetric amounts of pigment paste and base is equal to the difference between the target volume and the volumetric amount of the base.
- the complementary paste has a pH value ranging between 7 and 9; and the quotient of hiding powers of base and of the complementary paste is within the range between 0.9 and 1.1.
- the complementary paste is preferably aqueous and comprises 50 to 70 weight percent of filler with respect to the total weight of the compensation paste.
- a first base is used for preparation of interior paints
- a second base is used for preparation of exterior paints.
- the base used in the method according to the present invention is selected from a first base having a hiding power of at least 98%, and a second base having a hiding power of at least 50% and lower than 98%.
- the volumetric amount of pigment pastes preferably range between 0 and 4%, more preferably between 0 and 3.5% based on volume of the first base; and when said second base is used, the volumetric amount of pigment pastes range between 3% and 6%, more preferably between 3.5% and 5% based on volume of the second base.
- the complementary paste is an aqueous mixture comprising 50 to 70 weight percent of filler with respect to the total weight of said compensation paste.
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Paints Or Removers (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP15155116.5A EP3056264B1 (fr) | 2015-02-13 | 2015-02-13 | Procédé de teinture et machine de coloration |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP15155116.5A EP3056264B1 (fr) | 2015-02-13 | 2015-02-13 | Procédé de teinture et machine de coloration |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3056264A1 true EP3056264A1 (fr) | 2016-08-17 |
EP3056264B1 EP3056264B1 (fr) | 2023-05-10 |
Family
ID=52469696
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP15155116.5A Active EP3056264B1 (fr) | 2015-02-13 | 2015-02-13 | Procédé de teinture et machine de coloration |
Country Status (1)
Country | Link |
---|---|
EP (1) | EP3056264B1 (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109173827A (zh) * | 2018-09-17 | 2019-01-11 | 郑州三华科技实业有限公司 | 汽车修补漆重量体积混合调色方法 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0427497A1 (fr) * | 1989-11-06 | 1991-05-15 | Dunn-Edwards Corporation | Procédé pour mélanger de la peinture |
US5460297A (en) * | 1992-03-05 | 1995-10-24 | Abcc/Tech Corp. | Paint tinting apparatus |
US20050092386A1 (en) * | 2003-10-30 | 2005-05-05 | Kaufhold Kenneth R. | Combination gravimetric and volumetric dispenser for multiple fluids |
-
2015
- 2015-02-13 EP EP15155116.5A patent/EP3056264B1/fr active Active
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0427497A1 (fr) * | 1989-11-06 | 1991-05-15 | Dunn-Edwards Corporation | Procédé pour mélanger de la peinture |
US5460297A (en) * | 1992-03-05 | 1995-10-24 | Abcc/Tech Corp. | Paint tinting apparatus |
US20050092386A1 (en) * | 2003-10-30 | 2005-05-05 | Kaufhold Kenneth R. | Combination gravimetric and volumetric dispenser for multiple fluids |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109173827A (zh) * | 2018-09-17 | 2019-01-11 | 郑州三华科技实业有限公司 | 汽车修补漆重量体积混合调色方法 |
Also Published As
Publication number | Publication date |
---|---|
EP3056264B1 (fr) | 2023-05-10 |
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