EP0202124A2 - Formulating pasty materials - Google Patents
Formulating pasty materials Download PDFInfo
- Publication number
- EP0202124A2 EP0202124A2 EP86303700A EP86303700A EP0202124A2 EP 0202124 A2 EP0202124 A2 EP 0202124A2 EP 86303700 A EP86303700 A EP 86303700A EP 86303700 A EP86303700 A EP 86303700A EP 0202124 A2 EP0202124 A2 EP 0202124A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- tube
- container
- pasty
- extruded
- mixing
- 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
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B44—DECORATIVE ARTS
- B44D—PAINTING OR ARTISTIC DRAWING, NOT OTHERWISE PROVIDED FOR; PRESERVING PAINTINGS; SURFACE TREATMENT TO OBTAIN SPECIAL ARTISTIC SURFACE EFFECTS OR FINISHES
- B44D3/00—Accessories or implements for use in connection with painting or artistic drawing, not otherwise provided for; Methods or devices for colour determination, selection, or synthesis, e.g. use of colour tables
- B44D3/06—Implements for stirring or mixing paints
- B44D3/08—Implements for stirring or mixing paints for liquid or semi-liquid paints
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B44—DECORATIVE ARTS
- B44D—PAINTING OR ARTISTIC DRAWING, NOT OTHERWISE PROVIDED FOR; PRESERVING PAINTINGS; SURFACE TREATMENT TO OBTAIN SPECIAL ARTISTIC SURFACE EFFECTS OR FINISHES
- B44D3/00—Accessories or implements for use in connection with painting or artistic drawing, not otherwise provided for; Methods or devices for colour determination, selection, or synthesis, e.g. use of colour tables
- B44D3/003—Methods or devices for colour determination, selection or synthesis, e.g. use of colour tables
Definitions
- the tube and graduations may be integral, or separate.
- the tube may be a rigid plastics or glass tube with graduations marked on it. This is, however, not preferred. It is much preferable to use as the tube a thin walled, even bore plastics tube from which material may be ejected by pinching the tube flat at one point and then moving the pinch toward the material in the tube whereon it is moved along the tube and out of its end, and to provide the graduations on a tube holder, e.g. of rigid plastics or glass. This enables accurate graduations to be used.
- the holder may be, e.g. an outer tube into which the plastics tube may be slid. Graduations may also printed or embossed on a thin walled plastics tube, but this is less preferred.
- the tube is conveniently of round cross-section, though other cross-sections could be used. Different cross-sections of tubes may be used for formulating different total quantities of materials.
- the graduations may vary to suit the system in question, a convenient system being graduations from 0 to 100 divided into 10 units each of 10 graduations.
- the length of the tube may be any convenient length, for example 10 cm to 25 cm.
Abstract
Description
- This invention relates to formulating pasty materials and to apparatus for use in doing so. It is of particular value in colour mixing, but it can be used for analogous systems where it is desired to mix two or more pasty materials together in controlled proportions to make an appropriate formulation.
- Many paints are customarily available in pasty form. Mixing paint of a particular colour is generally done by eye. This is a satisfactory process for small scale work such as, e.g. making an oil painting but it is unsatisfactory for many graphic arts and commercial purposes, particularly if a match to a particular colour is desired. Even though in the hands of a skilled person, a close match may be obtained, an exact match is very difficult to achieve, particularly having regard to the fact that the colour of the wet paint is different from the colour of the paint when it is dry, particularly with water-based systems.
- Even if the user is assisted by some sort of mixing or formulation guide, he or she has no easy and accurate method of measuring the relative volumes of material necessary and subsequently mixing them evenly to give the desired final colour. U.K. Specification 2106794 proposes a system for measuring accurately small quantities of viscous coloured liquids for use in paint formulation, but such a system is impractical for doing colour formulation. It is effectively useful only for tinting white or neutral bases to alter the colour slightly.
- The problems referred to above are compounded in the case of colour matching or colour proofing systems in which it is desired not only to produce a given colour, but also to produce a specific mixed volume of that colour, e.g. sufficient to cover a proofing sheet completely but without leaving any material excess and without incomplete coverage at any point.
- We have now found that the disadvantages noted above may be avoided and accurate formulation of pasty materials obtained using a sequential extrusion technique as explained below.
- In accordance with the first feature of the present invention there is provided a method of formulating pasty materials together which comprises extruding successively given amounts of pasty material from a storage container into a tube, there being associated with the tube a set of graduations which are used to estimate the given amounts, ejecting the total quantity of pasty material from the tube, and mixing the same to homogeneity. Preferably mixing takes place in a container from which the homogeneous mixture can subsequently be extruded.
- The present invention also provides apparatus for carrying out the method including a set of containers each adapted to contain a pasty material and each having a first extrusion nozzle, a tube adapted to fit on each first extrusion nozzle, means for estimating the amount of material so extruded, means for ejecting material extended into the tube from the tube, a container for the receipt of such ejected material, and means for stirring or mixing to homogeneity material in the container. Preferably the container has a lid or cap capable of being fitted on the container and provided with a second extrusion nozzle from which the mixture in the container may be extruded. This may be achieved by making the container cylindrical with a movable bottom which may be moved towards the container lid like a piston to extrude material from the container through the second nozzle.
- The tube and graduations may be integral, or separate. For example, the tube may be a rigid plastics or glass tube with graduations marked on it. This is, however, not preferred. It is much preferable to use as the tube a thin walled, even bore plastics tube from which material may be ejected by pinching the tube flat at one point and then moving the pinch toward the material in the tube whereon it is moved along the tube and out of its end, and to provide the graduations on a tube holder, e.g. of rigid plastics or glass. This enables accurate graduations to be used. The holder may be, e.g. an outer tube into which the plastics tube may be slid. Graduations may also printed or embossed on a thin walled plastics tube, but this is less preferred.
- The tube for receipt of the pasty material may be so shaped and dimensioned that it is simply a press fit over the nozzles of the various containers of different materials. Alternatively a suitable adaptor may be used to effect a relatively fluid-tight seal between one end of the tube and the nozzle. Tubes of different sizes may be provided for formulating relatively small or relatively large quantities of pasty material together. Generally the bore of the tube used will be from 0.5 to 2.0 times the size of the outlet nozzle from the tube of pasty material, and the total internal volume of the tube will be a fixed volume in the range from 2 to 10 ml.
- In use of such apparatus, the tube is placed over the first nozzle and material extruded into it up to a desired graduation. The tube is then removed, placed over the next nozzle and further extrusion of material into the end of the tube over the nozzle then takes place until the free surface of the pasty material in the tube has reached the next appropriate graduation. This process is repeated until all of the ingredients of the formulation have been inserted into the tube, whereafter the tube is emptied.
- The tube is conveniently of round cross-section, though other cross-sections could be used. Different cross-sections of tubes may be used for formulating different total quantities of materials. The graduations may vary to suit the system in question, a convenient system being graduations from 0 to 100 divided into 10 units each of 10 graduations. The length of the tube may be any convenient length, for example 10 cm to 25 cm.
- The major advantage of the system is that it enables the consistent and accurate formulation of uniform quantities, e.g. 5 ml each time, of mixed pasty material. By separating the graduations from the tube itself, e.g. printing them on a tube holder or outer tube, consistency and accuracy can be achieved economically. In addition, the tube can be a disposable item which, once the successive amounts of material extruded into it have been ejected, can simply be discarded. The ejector may be e.g. a simple plastics moulding which may then be used as a stirrer to mix the ejected material to homogeneity and then itself be thrown away. Even the mixing container may be disposable if desired.
- Once the homogeneous mix has been made, it may be used in any desired fashion, e.g. applied with a brush, palette knife, sponge or other applicator to the desired article or surface. In the case of colour proofing systems, the material may be laid down as a bead of pasty material along one edge of a suitable substrate and then coated across that substrate using a drawdown bar. Even coating may be assisted by laying down an even bead, e.g. by extrusion via a container lid using a movable container base as a piston, as noted above.
- The method and apparatus of the present invention may be used in a wide variety of mixing and formulating applications for graphic arts and analogous purposes. In addition to use in colour matching or colour proofing systems noted above, the invention is of value in mixing non-photosensitised materials, for example gouache paints, e.g. acrylic based gouache, and for mixing printing inks, either silk screen or lithographic, e.g. offset inks, or other pasty ink types.
- The invention is illustrated with reference to the formulation of colour ink materials for use in a colour proofing system and with reference to the accompanying drawings in which:
- Figure 1 shows a first extrusion step.
- Figure 2 shows a second extrusion step.
- Figure 3 shows a final extrusion step.
- Figure 4 shows the ejection of material from the tube into a container.
- Figure 5 illustrates the mixing of the material in the container to homogeneity, and
- Figure 6 is a cross-section through the mixed material in the container showing the container lid in position.
- In a practical colour proofing system a number of colour-based materials may be used, but for simplicity of illustration the case is considered of the production of a somewhat de-saturated orange coating, for example, to produce the colour PANTONE 164 (PANTONE is a Registered Trade Mark).
- In order to do this, the user must first look up the desired formula in a formulation book. We take as a simplified example that the formulation calls for three parts of red base material, three parts of yellow base material and four parts of white base material.
- The base materials are provided in squeeze tubes 1 of substantially conventional type consisting of a lead/aluminium
alloy foil tube 2 having integrally formed at its top an externally screw-threadedextrusion nozzle 4, on to which an internally threaded closure cap 3 is normally applied. Such tubes are convenient, but not essential. The pasty material may be stored in any other convenient container with an extrusion nozzle, e.g. a plastics squeeze bottle or a plastics bottle or jar, fitted with a pump in its lid for extruding pasty material when operated. This last is useful if there is a tendency for the paste, on standing to become inhomogeneous, as the pump can be used as a stirrer before dispensing starts. - A flexible thin-
walled tube 5 is a press fit over the external threaded surface of thenozzle 4. Tube 5 is a transparent tube of polyvinyl chloride having an internal diameter of 6 mm and a wall thickness of 0.5 mm. It is surrounded on its exterior by a methacrylate plastics transparent tube 6 having a scale of graduations 7 on it. Tube 5 is a snug fit inside tube 6 so that once inserted there is little tendency to axial movement between the two. Withinner tube 5 press fitted over thenozzle 4, thetube 2 is squeezed to extrude colour material into thetube 5 up to the 30 units graduation marking. The assembly of inner andouter tubes 5, 6 is then pulled off and placed on thenext tube 2, i.e. as shown in Figure 2. Further material is now squeezed into thetube 5 from thetube 2 shown in Figure 2 until the rising surface of pasty material intube 5 reaches the graduation mark 60. - The two
tubes 5 and 6 are now removed and, as shown in Figure 3, placed on the nozzle of a corresponding whitebase containing container 2 from which a further 40 units of white material are extruded into thetube 5 to bring the free end face of pasty material up to the 100 mark. - The assembly of inner and
outer tubes 5, 6 is now removed from the third container of pasty material and theinner tube 5 removed from the outer tube 6. A disposable tube emptying and stirring tool denoted 10 in Figure 4 is now used to remove the pasty material (denoted 18) from inside the thin-walledflexible tube 5. Thetool 10 consists basically of a rigid strip of plastics material having a slot 11 andthroat 12 open at one end, itsother end 13 being plain. The transverse measurement of the slot 11 is such that thetube 5 can be introduced viathroat 12 into the slot 11 (arrow 16) but when so introduced, the walls of the slot 11 press the two sides of thetube 5 together. The tube is now pulled axially, pulling from its upper empty end, and accordingly as the slot 11 moves along the tube 5 (arrow 17), it pushes the material 18 in thetube 5 before it, so causingmaterial 18 to be extruded from the end of thetube 5. Following such extrusion,tube 5 is empty and collapsed flat, and is simply thrown away. Thematerial 18 is extruded fromtube 5 into a transparent,clear plastics container 20 which consists of a generallycylindrical section 21 having anexternal thread 22 at one end and aninternal flange 23 at the other, amovable base 24 seated on theflange 23 and, for later use, alid 25 having aninternal screw thread 26 and acentral dispensing orifice 27. - At this
stage lid 25 is not on thecontainer section 21 but themovable base 21 is in the position shown and thepasty material 18 is extruded fromtube 5 into the container. Using the plain end of thetube emptying tool 10, thepasty material 18 can now be blended by hand to homogeneity. It can easily be seen when homogeneity has been achieved, particularly having regard to the transparency of the walls of thecontainer 20. - When homogeneity has been achieved, the
lid 25 is screwed on to theexternal container thread 22 and the base 24 pushed towardslid 25 in order to move themixed pasty material 18 towards theorifice 27 and, with continued pushing upwards of thebase 24, to extrude it from theorifice 27. - In the colour proofing system under consideration, it is now relatively straightforward to extrude an even bead of
pasty material 18 from theorifice 27 in thelid 25 of the container and lay that bead across a sheet of colour test material. The bead is then distributed over the sheet of colour test material using, e.g. a draw-down coating bar, and the sheet may then be dried and put to use in the colour proofing or colour matching system in question. The formulation of the material drawn down is homogeneous because of the use of the intermediate container, and accurate because of the use of the formulation guide coupled with the graduations on the tube 6 while the individual components are being extruded into thetube 5. This enables very much more accurate colour matching to be obtained than using previous systems.
Claims (8)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT86303700T ATE59605T1 (en) | 1985-05-15 | 1986-05-15 | ASSEMBLING PASTE-LIKE MATERIALS. |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB8512275 | 1985-05-15 | ||
GB858512275A GB8512275D0 (en) | 1985-05-15 | 1985-05-15 | Formulating pasty materials |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0202124A2 true EP0202124A2 (en) | 1986-11-20 |
EP0202124A3 EP0202124A3 (en) | 1988-01-13 |
EP0202124B1 EP0202124B1 (en) | 1991-01-02 |
Family
ID=10579159
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP86303700A Expired - Lifetime EP0202124B1 (en) | 1985-05-15 | 1986-05-15 | Formulating pasty materials |
Country Status (7)
Country | Link |
---|---|
EP (1) | EP0202124B1 (en) |
JP (1) | JPS6219235A (en) |
AT (1) | ATE59605T1 (en) |
AU (1) | AU592340B2 (en) |
CA (1) | CA1287821C (en) |
DE (1) | DE3676341D1 (en) |
GB (1) | GB8512275D0 (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8944351B2 (en) | 2011-05-06 | 2015-02-03 | Saint-Gobain Abrasives, Inc. | Paint cup assembly with an outlet valve |
US9162240B2 (en) | 2004-12-16 | 2015-10-20 | Saint-Gobain Abrasives, Inc./Saint-Gobain Abrasie | Liquid container system for a spray gun |
US9586220B2 (en) | 2011-06-30 | 2017-03-07 | Saint-Gobain Abrasives, Inc. | Paint cup assembly |
US10035156B2 (en) | 2006-06-20 | 2018-07-31 | Saint-Gobain Abrasives, Inc. | Liquid supply assembly |
US10882064B2 (en) | 2011-12-30 | 2021-01-05 | Saint-Gobain Abrasives, Inc./Saint-Gobain Abrasifs | Convertible paint cup assembly with air inlet valve |
US11040360B2 (en) | 2006-06-20 | 2021-06-22 | Saint-Gobain Abrasives, Inc. | Liquid supply assembly |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2528530A (en) * | 1945-04-16 | 1950-11-07 | Paul Stiller | Paint container means and mixing preselected colored paints |
GB2039622A (en) * | 1979-01-26 | 1980-08-13 | Italiana Lapis Ed Affini Spa F | Dose dispensing syringe |
GB2065784A (en) * | 1979-12-17 | 1981-07-01 | Reynaud M | Piston Discharge Apparatus |
GB2106794A (en) * | 1981-10-03 | 1983-04-20 | Diycolor Limited | Mixing and dispensing viscous liquids |
-
1985
- 1985-05-15 GB GB858512275A patent/GB8512275D0/en active Pending
-
1986
- 1986-05-13 AU AU57379/86A patent/AU592340B2/en not_active Ceased
- 1986-05-14 CA CA000509104A patent/CA1287821C/en not_active Expired - Fee Related
- 1986-05-15 DE DE8686303700T patent/DE3676341D1/en not_active Expired - Fee Related
- 1986-05-15 JP JP61111765A patent/JPS6219235A/en active Pending
- 1986-05-15 EP EP86303700A patent/EP0202124B1/en not_active Expired - Lifetime
- 1986-05-15 AT AT86303700T patent/ATE59605T1/en not_active IP Right Cessation
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2528530A (en) * | 1945-04-16 | 1950-11-07 | Paul Stiller | Paint container means and mixing preselected colored paints |
GB2039622A (en) * | 1979-01-26 | 1980-08-13 | Italiana Lapis Ed Affini Spa F | Dose dispensing syringe |
GB2065784A (en) * | 1979-12-17 | 1981-07-01 | Reynaud M | Piston Discharge Apparatus |
GB2106794A (en) * | 1981-10-03 | 1983-04-20 | Diycolor Limited | Mixing and dispensing viscous liquids |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9162240B2 (en) | 2004-12-16 | 2015-10-20 | Saint-Gobain Abrasives, Inc./Saint-Gobain Abrasie | Liquid container system for a spray gun |
US10035156B2 (en) | 2006-06-20 | 2018-07-31 | Saint-Gobain Abrasives, Inc. | Liquid supply assembly |
US11040360B2 (en) | 2006-06-20 | 2021-06-22 | Saint-Gobain Abrasives, Inc. | Liquid supply assembly |
US11548018B1 (en) | 2006-06-20 | 2023-01-10 | Saint-Gobain Abrasives, Inc. | Liquid supply assembly |
US11679399B2 (en) | 2006-06-20 | 2023-06-20 | Saint-Gobain Abrasives, Inc. | Liquid supply assembly |
US8944351B2 (en) | 2011-05-06 | 2015-02-03 | Saint-Gobain Abrasives, Inc. | Paint cup assembly with an outlet valve |
US8998018B2 (en) | 2011-05-06 | 2015-04-07 | Saint-Gobain Abrasives, Inc. | Paint cup assembly with an extended ring |
US9335198B2 (en) | 2011-05-06 | 2016-05-10 | Saint-Gobain Abrasives, Inc. | Method of using a paint cup assembly |
US9586220B2 (en) | 2011-06-30 | 2017-03-07 | Saint-Gobain Abrasives, Inc. | Paint cup assembly |
US10882064B2 (en) | 2011-12-30 | 2021-01-05 | Saint-Gobain Abrasives, Inc./Saint-Gobain Abrasifs | Convertible paint cup assembly with air inlet valve |
Also Published As
Publication number | Publication date |
---|---|
EP0202124A3 (en) | 1988-01-13 |
EP0202124B1 (en) | 1991-01-02 |
DE3676341D1 (en) | 1991-02-07 |
ATE59605T1 (en) | 1991-01-15 |
CA1287821C (en) | 1991-08-20 |
AU592340B2 (en) | 1990-01-11 |
GB8512275D0 (en) | 1985-06-19 |
AU5737986A (en) | 1986-11-20 |
JPS6219235A (en) | 1987-01-28 |
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