EP1523418A1 - Verfahren zur herstellung eines kunstoff enthaltenden materials mit muster versehener oberfläche, vorrichtung zur ausführung des verfahrens und hergestelltes material - Google Patents
Verfahren zur herstellung eines kunstoff enthaltenden materials mit muster versehener oberfläche, vorrichtung zur ausführung des verfahrens und hergestelltes materialInfo
- Publication number
- EP1523418A1 EP1523418A1 EP03762380A EP03762380A EP1523418A1 EP 1523418 A1 EP1523418 A1 EP 1523418A1 EP 03762380 A EP03762380 A EP 03762380A EP 03762380 A EP03762380 A EP 03762380A EP 1523418 A1 EP1523418 A1 EP 1523418A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- particles
- formations
- layer
- unit
- template
- 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.)
- Withdrawn
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/16—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by features of a layer formed of particles, e.g. chips, powder or granules
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B38/00—Ancillary operations in connection with laminating processes
- B32B38/0036—Heat treatment
- B32B38/004—Heat treatment by physically contacting the layers, e.g. by the use of heated platens or rollers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
- B32B7/04—Interconnection of layers
- B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
- B32B7/04—Interconnection of layers
- B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
- B32B7/14—Interconnection of layers using interposed adhesives or interposed materials with bonding properties applied in spaced arrangements, e.g. in stripes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B44—DECORATIVE ARTS
- B44C—PRODUCING DECORATIVE EFFECTS; MOSAICS; TARSIA WORK; PAPERHANGING
- B44C1/00—Processes, not specifically provided for elsewhere, for producing decorative surface effects
- B44C1/18—Applying ornamental structures, e.g. shaped bodies consisting of plastic material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/14—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers
- B32B37/24—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers with at least one layer not being coherent before laminating, e.g. made up from granular material sprinkled onto a substrate
- B32B2037/243—Coating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B38/00—Ancillary operations in connection with laminating processes
- B32B2038/0052—Other operations not otherwise provided for
- B32B2038/0076—Curing, vulcanising, cross-linking
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2305/00—Condition, form or state of the layers or laminate
- B32B2305/30—Fillers, e.g. particles, powders, beads, flakes, spheres, chips
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2471/00—Floor coverings
Definitions
- TITLE Method for producing a plastic-based, patterned surface material, a device for accomplishing the method and a surface material being produced by means of the method.
- the present invention relates to production of a plastic- based, patterned surface material, wherein a floor covering material primarily is intended, and a device for accomplishing the method and a coating material being produced by means of the method.
- a surface material such as floor covering and at least to its main part consisting of plastic is often provided with some form of patterning.
- This may be one of the following basic types: on the one hand printed patterns, where the pattern design is formed by means of some form of known pattern printing technigue, on the other hand "material patterns", where plastic masses of different colour or character are positioned against each other.
- the first-mentioned type is characterised in a great freedom as regards the selection of pattern, wherein imitating patterns as well as figure patterns and even diffuse images can be obtained.
- the drawback as regards this technique is that the pattern layer must be protected against wear and tear by means of application of a transparent wear layer. A wear layer - especially if it is thick - will disturb the outlook of the printed pattern and also influence some functional characteristics negatively.
- the second basic type is obtained by means of fragmentary mixture of differently coloured plastic masses or by means of admixing of granules or flakes with differing colour in a plastic mass of uniform colour.
- Heat compression and application of differently coloured thermoplastic granules and also aggregates forms part of this technique.
- the advantage as regards this technique is that a wear layer with a continuous pattern depth is obtained, where the product characteristics are not limited by any demands for a transparent wear layer.
- the drawback is a restriction to randomly created pattern designs with a limited range of variation.
- WO 9942288 Al Bibby
- DE 2037740 Knobel
- the patent document SE 428 449 mentions a plastic surface material with figurative granule deposits.
- the application of the granules is limited to predetermined areas which are covered by an adhesive plastic layer where the granules stick.
- the application of the adhesive layer must take place by means of a printing method before the granules are scattered over the surface.
- the granules which do not stick in the adhesive layer are removed by means of, for example, a suction effect.
- the step of procedure which involves application of an adhesive plastic layer on limited areas does not occur in the invention.
- the present invention relates to plastic-based surface materials with all-through patterns in the wear layer being provided with a pattering being formed by means of applying of particles to a basic mass.
- similar materials as well as methods and devices for the production of said materials are previously known.
- these types of material have a limitation. If only random patternings are used, the possibilities are limited for various manufacturers to provide an individual appearance character to the material.
- the object of the invention is to provide a controlled patterning procedure based on scattering of granules to a substrate where no risk of a misfit between different pattern elements occur and where an even amount of granules over the whole surface is secured, thus securing an even thickness for the final product.
- the object of the invention is achieved by means of particles being applied on the surface of the material in controlled formations, which can be made more or less diffuse to their contours while intermediate areas are provided with particles of another character than the ones which were applied first.
- the particles can be either embedded in a transparent matrix or applied on a thin tacky layer. In the later case the particles will be pressed together in the finishing operations and will constitute the wear layer of the product.
- Fig. 1 shows a schematic view of a device for accomplishing the method according to the invention
- Figs. 2 and 3 show cross-sections on an enlarged scale through a material, which has been produced in accordance with the method, in two different forms; and Figs. 4 and 5 show the appearance of the material surface, which is patterned, after various steps of the procedure.
- the device which is shown in Fig. 1 is intended for forming a pattern being accomplished in accordance with the invention on the surface of a produced substrate.
- the substrate is formed by a web with a supporting layer of, for example, glass fibre and on this a gelled plastic layer such as polyvinyl chloride being applied on the supporting layer by means of coating and then gelled by means of heating.
- a gelled plastic layer such as polyvinyl chloride
- the substrate here defined with the reference numeral 1
- the substrate is applied in the form of a long web from a material roll 2 and fed by means of feed rollers 3 to a supporting structure 4.
- a coating unit 6 for an adhesive plastic mass such as a plastisol
- a unit 7 being provided for laying down particles in the adhesive layer by means of a template.
- the template shall lay down the particles in an intended pattern formation and to such a quantity that the adhesive surface essentially becomes covered with particles within intended areas so that the adhesive capacity is eliminated there.
- suction unit 8 for removing surplus of particles from those being laid down by means of the unit 7, after which there follows a unit 9 for scattering particles over the whole surface of the substrate and followed by a unit 10 for suction away of surplus of particles formed in that connection.
- the substrate now being coated and provided with particles, is fed further over a heated roll 12, which heats up and presses the material against an underlying roll 13.
- a turning roll 14 the material, which now is completed, is fed further to a reeling coil 15 in order to form a material roll 16.
- the material can be given a finishing treatment in various known manners.
- the surface can be lacquered and the material can be reheated and surface embossed.
- the coating unit 6 can consist of a trough in which the semi-liquid plastic mass is filled and which has a slit- formed web and a doctor blade being provided over the surface of the substrate and over its full width, which results in an even deposit on the substrate 1 being fed forward.
- the template unit 7 can consist of a cylinder 20, which extends over the width of the substrate and which is rotary around an axle 21.
- the cylinder has a wall which is provided with screened openings 23, by means of which the template is formed. This is designed in order to provide a laying-down of particles in a fixed pattern.
- the particles are fed into the cylinder between the shielding element 22 and are applied on the adhesive layer, which has been coated by means of the coating unit, within the area of the slit which is formed by the screening elements 22.
- the cylinder is rotated with a peripherical speed, which corresponds with the feeding speed of the substrate or, alternatively, with a speed difference which is adjusted to provide an increase or a decrease of the dimension of the laid-down particle formations in the direction of motion of the substrate in relation to the respective template opening dimension.
- the particles fall out through the openings 23 in the cylinder's wall, which in form and size are adjusted to provide the desired formation of the particle laying-down.
- the scattering unit 9 can be constructed as a trough with a lower opening 24 extending over the width of the substrate, through which particles, which have been fed into the trough, are scattered over the width of the substrate.
- the feeding and the scattering of the particles are facilitated by means of the fact that the trough or a device at its lower opening is provided with a vibrating movement.
- the substrate is formed into the finished surface material through the various steps of procedure, which are accomplished by means of the described units of the device.
- the coating by means of the unit 6, the substrate is provided with a layer of adhesive plastic mass, such as a plastisol, over the entire width of the substrate.
- Fig. 4 shows a section of the substrate's surface after the respective step of procedure.
- Fig. 4 shows particles 27 having been laid down by means of the template unit as small triangles.
- Fig. 4 shows the formations 25 as squares with intermediate areas 26 forming a grid.
- Fig. 4 shows the step after the passage of the suction unit, which implies that the remaining particles 27 are those which have stuck in a layer in the adhesive plastic mass thereby forming the formations 25.
- the particles are spherical or spheroid thermoplastic particles.
- Particle diameter is chosen in the range 0.3-5.0 mm. The choice depends on which thickness the pressed particle layer constituting the wear layer of the finished product is aimed to have.
- the particles are coloured but they may also partly be transparent.
- a uniform size of the selected spherical particles is preferred. This ensures that the final product will have an even thickness. It is however also possible e.g. to use a smaller particle size in one kind of the pattern areas. In this case the final product thickness will be lower in these areas, thus creating a relief effect to the surface of the finished product.
- a "particle colour” may consist of a mixture of particles in different colour tones. Other particles than thermoplastic plastic particles can also be utilized. Thus, a "particle colour” may contain particles of coloured quartz or carborundum, completely or in a mixture together with thermoplastic plastic particles, if one wishes to provide the finished product with anti-slip characteristics or electrically conducting characteristics by means of particles made of a conductive material.
- the adhesive plastisol layer on the substrate 1 can be provided with various thicknesses and will subsequently obtain different significance in the finished product.
- the layer is made thin in relation to the particle size, the thermoplastic particles which have stuck during pressing and heating will be deformed so that they meet each other without intervals, see the cross-section through the material in Fig. 2.
- the particles here defined with the reference numeral 44, form nearly the entire wearing layer and the adhesive mass, here 45, does not contribute at all, or only to an insignificant part, to the appearance of the material.
- the adhesive layer 45 is made thicker, the particles 44 will be pressed down into this with maintained form during pressing and heating, see Fig. 3. In that respect, the adhesive layer will be visible in the intervals between the particles. Both embodiments are within the scope of the invention. In the last-mentioned case, the adhesive layer is suitably made transparent. In this case, there is also the possibility to enrichen the pattern design by means of a printed pattern on the substrate.
- the substrate After the suction unit 10, the substrate, together with its coating of plastic mass and particles, is fed around the heated roll 12 after first having passed the nip between this roll and the roll 13. During the compression of the material web between the rolls 12 and 13, the particles are pressed together in the as yet viscous plastic layer and are integrated into this.
- the plastic layer is heated up into curing, so that the material course stretches out from the chaining roll 14 as a finished coating material in the form of a long course which is reeled up on the coil 15 and gradually can be taken out from the device in the form of a material roll of for possible additional surface treatment in accordance with what has been previously mentioned.
- the particle size is big compared with the thickness of the tacky plastisol layer there may be a need of more pressure rollers 13 along the periphery of the heated roll to melt and flatten the surface.
- this process can be made in a heat air oven followed by an embossing calander in a way that is well known in the trade.
- An important basic principle of the invention is the fact that formations of a first particle type are deposited by means of the template on limited surface sections of the adhesive plastic layer, which results in that the capacity of the adhesive layer in these formations to retain additional particles is essentially revoked. In this manner, the effect is obtained that a particle layer which has been scattered over the entire surface only will stick in areas between the areas which already have been covered with particles.
- the formations of the particles which have been applied lastly are formed without the need of having to take any particular measures for distributing the particles over the surface, which makes the method as well as the device for its accomplishment simpler than if it had been necessary to put on various formations of particles with repeated template laying-down with the maintenance of necessary pattern fit.
- the method also secures that, the entire surface becomes covered by one even layer of particles without any variations. Furthermore, the object which is associated with the invention is achieved, namely that the controlled particle laying-down in certain sections results in said advantages of continuously patterned wear layers with their favourable qualities as regards wear and tear without being reduced to the pattern limitation, which this type of flooring previously has had.
- the pattern design can be made more or less diffuse until it approaches completely random patterns or, alternatively, that it can be made more distinct. This can be achieved by selecting particles for, on the one hand, the template laying-down and, on the other hand, the scattering with more ore less distinct difference in appearance and form and dimension within the scope of accommodation in the thickness of the finished layer.
- Another way of obtaining a less prominent pattern design is to deposit particles by means of the template in a large surplus, in addition to the quantity of particles which can stick in the mass within the surface sections being defined by the template, and to some extent let these particles be spread outside the contour which has been formed by the template. In that respect, it is possible to influence the accumulation of particles by means of air currents before the surplus is finally exhausted.
- Another way of spreading the particles being laid down by means of the template may be to vibrate the substrate.
- said suction of surplus of particles which is achieved by means of the unit 8, counteracts diffusion.
- the influence of the suction operation can be controlled by adjustment of suction power, the direction of the air current and placing of suction openings with adjusted distance from the template unit 7.
- An exclusion of the suction operation is also possible.
- the contours can be provided with a more or less diffuse character already in the scattering process, for example by means of the fact that the template, i.e. the wall to the cylinder 20, is kept at a certain distance from the substrate with the adhesive layer.
- the diffusion is also influenced by which type of template unit, i.e. the types represented by the unit 7, that is selected.
- the substrate which has been described above as a supporting layer forming part of the finished material
- variations are also possible.
- One such variation may be to form the plastic layer on a so-called release paper, which is removed from the plastic layer and does not form part of the finished product, which in that respect may consist entirely of one or several plastic layers.
- a glass-fibre non-woven (about 50g/m 2 ) is chosen as a carrier substrate.
- the carrier is coated with a layer of PVC plastisol with the following composition:
- the plastisol amount is adjusted so that the total thickness of the substrate after coating will be 0.7 mm.
- the coated substrate is forwarded in contact with a heated cylinder with a temperature of about 160°C.
- a second plastisol coat is then applied on top of the smooth surface, composition being the following:
- the substrate will afterwards be moved to reach a scattering device provided as here described to depose spherical particles, the same type as above but in another colour mix and scattered in excess over the whole surface.
- a second suction device will afterwards remove all particles that have not adhered to the tacky substrate.
- the substrate will now have a surface with figurative areas with different colour impression.
- the whole surface is covered with one excess layer of particles of equal size and no uncovered areas will occur.
- the substrate is brought to an hot-air oven at about 200°C where the tacky plastisol will gel and the whole construction will be soft and formable.
- a flat embossing calander will press the granules to an even layer.
- the first coat and the tacky coat are applied under controlled thickness and the granules are of equal size and evenly distributed in one layer the product will after embossing have a flat surface and an even thickness.
- the flat embossed particles together with the tacky plastisol layer will form the wear layer of the finished product. With the parameters chosen for tacky plastisol thickness and particle diameter the wear layer thickness will be substantially 0.7 mm.
- the product After the flat embossing the product is basically finished.
- a surface lacquer of a normal floor covering type can be applied.
- a plastisol coat an the backside of the product is also to apply a plastisol coat an the backside of the product to influence total thickness and to gel this layer.
- a release paper is coated with a PVC-plastisol of the following composition: ⁇ E-PVC 100 parts
- Thickness of the coat is substantially 1.3 mm.
- the substrate After coating the substrate is forwarded to pass a heated cylinder with surface temperature about 160°C where the coated plastisol will pregel.
- Thickness of the coat is adjusted to substantially 0.4 mm.
- the tacky substrate is then forwarded horizontally under a screen scatter equipment where a coloured mix of spherical PVC-particles with a diameter of substantially 1.0 mm are deposed onto the tacky substrate in a controlled figuration as by means of a template unit according to what is here described.
- a suction device will remove excess of particles.
- the substrate will then pass a scattering device where the whole surface is scattered in excess with spherical particles of another colour mix and with a particle diameter of 0.5 mm.
- a second suction device will remove particles that have been deposed on already particle covered areas and have not adhered.
- the product After the flat embossing the product will now have a different material amount in the areas scattered with 0.5 mm particles compared with the areas scattered with 1.0 mm particles. The difference will show up as a thickness difference which will give a regular relief to the surface. In addition the pressed particle structure in the areas with small particles will look different than areas with large particles.
- Both the surface relief and the difference in outlook are optional ways to influence the outlook of the finished product .
- Example 3 This example describes a way to make spherical particles of uniform size.
- a dry blend with the following composition is produced: S-PVC 100 parts
- Plasticizer 25 parts Epoxidized Soya Bean Oil 5 parts Stabilizer (Ba-Zu type) 4 parts Lubricant 2 parts
- the dry blend is fed to an extruder which has in the outlet a micro granulating device.
- the device consists of a plate with fine holes and a high-speed rotating knife. Fine PVC-strings are extruded via the hole plate and cut by the rotating knife. By choosing the hole diameter and knife speed the size of the particles are influenced.
- the cut particles are cooled in water and will spontaneously get a spherical form. After cooling the particles are dried and ready for use.
- Such particles having an exact spherical form will, as a mass, have a low viscosity and will be very advantageous to the use in deposition of the particles in controlled figurations e.g. by means of a template unit and especially in scattering operations.
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Laminated Bodies (AREA)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE0202142 | 2002-07-09 | ||
SE0202142A SE0202142L (sv) | 2002-07-09 | 2002-07-09 | Förfarande för framställning av ett plastbaserat, mönstrat beläggningsmaterial, en anordning för genomförande av förfarandet och ett medelst förfarande framställt beläggningsmaterial |
PCT/CH2003/000460 WO2004005045A1 (en) | 2002-07-09 | 2003-07-08 | Method for producing a plastic-based, patterned surface material, a device for accomplishing the method and a surface material being produced by means of the method |
Publications (1)
Publication Number | Publication Date |
---|---|
EP1523418A1 true EP1523418A1 (de) | 2005-04-20 |
Family
ID=20288479
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP03762380A Withdrawn EP1523418A1 (de) | 2002-07-09 | 2003-07-08 | Verfahren zur herstellung eines kunstoff enthaltenden materials mit muster versehener oberfläche, vorrichtung zur ausführung des verfahrens und hergestelltes material |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP1523418A1 (de) |
AU (1) | AU2003243879A1 (de) |
SE (1) | SE0202142L (de) |
WO (1) | WO2004005045A1 (de) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SE529385C2 (sv) * | 2005-02-15 | 2007-07-24 | Forbo Project Vinyl Ab | Förfarande för golvtillverkning med termoplastiskt material |
WO2017172888A1 (en) * | 2016-03-30 | 2017-10-05 | 3M Innovative Properties Company | Article featuring a predetermined pattern of randomly distributed microspheres and methods of making the same |
CN106218296B (zh) * | 2016-08-05 | 2019-03-22 | 上海理工大学 | 一种小颗粒物快速装载装置 |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3049761A (en) * | 1956-03-07 | 1962-08-21 | Goodyear Tire & Rubber | Process for producing colored sheet material |
US3017714A (en) * | 1958-11-07 | 1962-01-23 | Bonafide Mills Inc | Method of making plastic terrazzo and resultant product |
US3239364A (en) * | 1959-11-18 | 1966-03-08 | Congoleum Nairn Inc | Process for producing decorative plastic surface coverings |
US4212691A (en) * | 1978-11-21 | 1980-07-15 | Congoleum Corporation | Methods and apparatus for making decorative inlaid types of resilient sheet materials and the like |
-
2002
- 2002-07-09 SE SE0202142A patent/SE0202142L/xx not_active Application Discontinuation
-
2003
- 2003-07-08 EP EP03762380A patent/EP1523418A1/de not_active Withdrawn
- 2003-07-08 WO PCT/CH2003/000460 patent/WO2004005045A1/en not_active Application Discontinuation
- 2003-07-08 AU AU2003243879A patent/AU2003243879A1/en not_active Abandoned
Non-Patent Citations (1)
Title |
---|
See references of WO2004005045A1 * |
Also Published As
Publication number | Publication date |
---|---|
AU2003243879A1 (en) | 2004-01-23 |
SE0202142D0 (sv) | 2002-07-09 |
WO2004005045A1 (en) | 2004-01-15 |
SE0202142L (sv) | 2004-01-10 |
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