CA2103990C - Multi-coloured, patterned flooring and process of manufacture thereof - Google Patents
Multi-coloured, patterned flooring and process of manufacture thereofInfo
- Publication number
- CA2103990C CA2103990C CA002103990A CA2103990A CA2103990C CA 2103990 C CA2103990 C CA 2103990C CA 002103990 A CA002103990 A CA 002103990A CA 2103990 A CA2103990 A CA 2103990A CA 2103990 C CA2103990 C CA 2103990C
- Authority
- CA
- Canada
- Prior art keywords
- web
- colour
- flooring
- coloured
- fractions
- 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.)
- Expired - Lifetime
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/22—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of indefinite length
- B29C43/30—Making multilayered or multicoloured articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/58—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising fillers only, e.g. particles, powder, beads, flakes, spheres
- B29C70/64—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising fillers only, e.g. particles, powder, beads, flakes, spheres the filler influencing the surface characteristics of the material, e.g. by concentrating near the surface or by incorporating in the surface by force
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/22—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of indefinite length
- B29C43/24—Calendering
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2021/00—Use of unspecified rubbers as moulding material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2995/00—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds
- B29K2995/0018—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds having particular optical properties, e.g. fluorescent or phosphorescent
- B29K2995/002—Coloured
- B29K2995/0021—Multi-coloured
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/732—Floor coverings
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Composite Materials (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
- Floor Finish (AREA)
- Synthetic Leather, Interior Materials Or Flexible Sheet Materials (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
Abstract
ABSTRACT
A multi-coloured, patterned flooring consists of a web of a first colour and a differently coloured granulate which is embedded into the web in an essentially even distribution at least at the surface of the web. The web and the granulate are made of cross linkable elastomers.
The granulate includes at least two fractions of particles which have colours different from one another and from the web. The amounts and colours of the particles in the fractions are selected such that the mixed colour achievable upon homogeneous mixing of all components of the flooring essentially corresponds to the first colour. This permits the complete recycling of edge clippings and production left-overs for the manufacture of the same flooring without color deviations in the base material of the web. A process for the manufacture of this type of flooring is also disclosed.
A multi-coloured, patterned flooring consists of a web of a first colour and a differently coloured granulate which is embedded into the web in an essentially even distribution at least at the surface of the web. The web and the granulate are made of cross linkable elastomers.
The granulate includes at least two fractions of particles which have colours different from one another and from the web. The amounts and colours of the particles in the fractions are selected such that the mixed colour achievable upon homogeneous mixing of all components of the flooring essentially corresponds to the first colour. This permits the complete recycling of edge clippings and production left-overs for the manufacture of the same flooring without color deviations in the base material of the web. A process for the manufacture of this type of flooring is also disclosed.
Description
21~9!~0 MnLTI-COLOURED. PATTERNED FLOORING AND
PROCESS OF MANUFACTURE THEREOF
The lnvention relates to multi-coloured, patterned floorings and to a process for their manufacture. More particularly, the invention relates to floorings consisting of a web of a first colour and a granulate of different colour which is embedded into the web in an essentially even distribution at least at the surface of the web.
French Patent 1,167,760 describes a multi-coloured, patterned flooring of this type and a plurality of thermoplastic polymers usable therefor. The preferred thermoplastic material disclosed for use in the manufacture of that flooring is polyvinyl chloride (PVC). Further taught is a process for the manufacture of this type of flooring, especially when made of PVC, wherein at least two differently coloured fractions of a starting material are processed into a web of thermoplastic material by using a roller calander which includes two rollers of identical diameter rotating at the same speed in opposite directions. Coloured granulates are in that process embedded into the thermoplastic base material web.
The whole i~ later heated to at least the melting temperature of the base material and again compressed so that the base material encloses the particles on all sides.
It is a disadvantage of the floorings and manufacturing processes of the above type that production left-overs and the continuously produced clippings from the edge cutting operation include both base material and granulates of the respectively used colours and, thus, cannot be reused in the same manufacturing process either as base material or as colouring granulates. Furthermore, they can be used only to a limited extent in other recycled products.
It is now an ob~ect of the present disclosure to describe a flooring of the above general type which is of such a composition that the left overs and clippings produced during manufacture thereof are completely reuseable in the same product. It is another ob~ect of the disclosure to provide a process of manufacture for this type of flooring wherein all waste clippings can be recycled in the same manufacturing process and for the production of the same flooring.
2103~0 This object is achieved in a flooring wherein the base material of the web has a first colour and the granulate embedded therein con~ists of at least two fractions which are coloured differently from each other and from the first colour, whereby the amounts and colours of the individual granulate fractions are selected so that the colour achieved upon homogeneous mixing of all components in the finished flooring substantially corresponds to the first colour. This will allow clippings being reused as base material in the manufacture of the same flooring after homogeneous mixing thereof.
The flooring preferably has a thickness of l to 4 mm and includes a web of a first colour and a granulate embedded therein, wherein the granulate is essentially evenly distributed at least at the surface thereof. Both web and granulate are preferably made of elastomeric material which is cross linkable by vulcanization. The individually coloured areas in the web produced by embedding the granulate fractions therein have sharply defined edges. It is preferred that an area of 25 cm2 always includes approximately the same number of areas of each color. Preferably, the coloured areas embedded in the web are l to 25 cm2 in size. Smaller areas would not be optically appealing and values above 25 cm2 would no longer guarantee that even in flooring pieces as small as 25 cm2 sufficient amounts of different colours are present for the achievement of the colour of the web upon mixing.
All known vulcanizable elastomers suitable for use in floor coverings can be used in the flooring and process of the present invention, for example those elastomers having the standard designations SBR, NBR and EPTM or natural caoutchouc as well as mixtures thereof.
One embodiment of the present flooring which is especially preferred in view of the relationship between the amount of material used and the special dirt concealing effects and colour achieved has a pattern of three differently coloured areas in the web. This embodiment has an optically especially appealing pattern and the material requirements therefor are ~ustifiable.
In a preferred embodiment of the flooring of this invention the amounts and colours of the particles in the granulate fractions are coordinated such that the mixed colour achieved upon homogeneous mixture essentially corresponds to the first colour. With this embodiment, the . ~' ~' ' .
.
.
mixed colour of the web including the re-used clippings does not contribute to a new base colour. The mixed colour of homogeneously mixed clippingg i9 determined mainly by the multi-coloured particles in the fractions. Thus, the colour shade achievable with the recycled clippings can be exactly predetermined.
French Patent 1,167,760 discloses a process for the manufacture of a flooring made of thermoplastic materials only. However, the same process can be used for the manufacture of the present flooring which is made of vulcanizable material, whereby in both cases at least two differently coloured fractions of a starting material are first processed into a web by using a roller calander and then solidified. However, the present process is characterized in that the fractions are first processed into granulates of separate colour and ~hat the granulates are subsequently mixed, fed into the roller calander and compressed into the web. The inclusion of coloured areas into the web material is preferably carried out with conventional strew-on arrangements for comminuted raw mixtures in a continuous vulcanization machine or in a heated press at 160 to 190C and under pressure. The granulates are thereby so well embedded into the base plate that no separation between the strewed-on granulates and the base material can be observed along the granulate edges in a thorn bending test according to DIN 51 949, at a thorn diameter of 20 mm and a material thickness of 2 mm. Thus, the coloured particles form a single, gap free plane with the surface of the base plate. Preferably, between 80 and 450 g/m2 of coloured particles are strewn onto the web.
The particle slze is thereby selected so that the finished flooring includes discrete coloured areas of between 1 and 25 cm2. If one proceeds in such a way, surface portions of the flooring as small as 25 cm2 include approximately equal portions of the different colours used.
This guarantees that when the colour of the base web is achievable with a mixture of about equal portions of the coloured, strewed-on particles, edge clippings and left-overs generated during the manufacturing process can be recycled in the same process, since the first colour of the base plate will be achieved during the intense mixing in the extruder or on the mixing and rolling press used in the manufacture of the web.
Consequently, multi-coloured waste and clippings produced durlng manufacture of the present flooring can be completely recycled in line to 210~.~90 the same manufacture and process and, which is especially important, in varying amounts without colour deviations in the final product. The process provides for a sharp edged, gap-free embedding under pressure of the coloured granulates into the web.
.
,, . .-: , :
PROCESS OF MANUFACTURE THEREOF
The lnvention relates to multi-coloured, patterned floorings and to a process for their manufacture. More particularly, the invention relates to floorings consisting of a web of a first colour and a granulate of different colour which is embedded into the web in an essentially even distribution at least at the surface of the web.
French Patent 1,167,760 describes a multi-coloured, patterned flooring of this type and a plurality of thermoplastic polymers usable therefor. The preferred thermoplastic material disclosed for use in the manufacture of that flooring is polyvinyl chloride (PVC). Further taught is a process for the manufacture of this type of flooring, especially when made of PVC, wherein at least two differently coloured fractions of a starting material are processed into a web of thermoplastic material by using a roller calander which includes two rollers of identical diameter rotating at the same speed in opposite directions. Coloured granulates are in that process embedded into the thermoplastic base material web.
The whole i~ later heated to at least the melting temperature of the base material and again compressed so that the base material encloses the particles on all sides.
It is a disadvantage of the floorings and manufacturing processes of the above type that production left-overs and the continuously produced clippings from the edge cutting operation include both base material and granulates of the respectively used colours and, thus, cannot be reused in the same manufacturing process either as base material or as colouring granulates. Furthermore, they can be used only to a limited extent in other recycled products.
It is now an ob~ect of the present disclosure to describe a flooring of the above general type which is of such a composition that the left overs and clippings produced during manufacture thereof are completely reuseable in the same product. It is another ob~ect of the disclosure to provide a process of manufacture for this type of flooring wherein all waste clippings can be recycled in the same manufacturing process and for the production of the same flooring.
2103~0 This object is achieved in a flooring wherein the base material of the web has a first colour and the granulate embedded therein con~ists of at least two fractions which are coloured differently from each other and from the first colour, whereby the amounts and colours of the individual granulate fractions are selected so that the colour achieved upon homogeneous mixing of all components in the finished flooring substantially corresponds to the first colour. This will allow clippings being reused as base material in the manufacture of the same flooring after homogeneous mixing thereof.
The flooring preferably has a thickness of l to 4 mm and includes a web of a first colour and a granulate embedded therein, wherein the granulate is essentially evenly distributed at least at the surface thereof. Both web and granulate are preferably made of elastomeric material which is cross linkable by vulcanization. The individually coloured areas in the web produced by embedding the granulate fractions therein have sharply defined edges. It is preferred that an area of 25 cm2 always includes approximately the same number of areas of each color. Preferably, the coloured areas embedded in the web are l to 25 cm2 in size. Smaller areas would not be optically appealing and values above 25 cm2 would no longer guarantee that even in flooring pieces as small as 25 cm2 sufficient amounts of different colours are present for the achievement of the colour of the web upon mixing.
All known vulcanizable elastomers suitable for use in floor coverings can be used in the flooring and process of the present invention, for example those elastomers having the standard designations SBR, NBR and EPTM or natural caoutchouc as well as mixtures thereof.
One embodiment of the present flooring which is especially preferred in view of the relationship between the amount of material used and the special dirt concealing effects and colour achieved has a pattern of three differently coloured areas in the web. This embodiment has an optically especially appealing pattern and the material requirements therefor are ~ustifiable.
In a preferred embodiment of the flooring of this invention the amounts and colours of the particles in the granulate fractions are coordinated such that the mixed colour achieved upon homogeneous mixture essentially corresponds to the first colour. With this embodiment, the . ~' ~' ' .
.
.
mixed colour of the web including the re-used clippings does not contribute to a new base colour. The mixed colour of homogeneously mixed clippingg i9 determined mainly by the multi-coloured particles in the fractions. Thus, the colour shade achievable with the recycled clippings can be exactly predetermined.
French Patent 1,167,760 discloses a process for the manufacture of a flooring made of thermoplastic materials only. However, the same process can be used for the manufacture of the present flooring which is made of vulcanizable material, whereby in both cases at least two differently coloured fractions of a starting material are first processed into a web by using a roller calander and then solidified. However, the present process is characterized in that the fractions are first processed into granulates of separate colour and ~hat the granulates are subsequently mixed, fed into the roller calander and compressed into the web. The inclusion of coloured areas into the web material is preferably carried out with conventional strew-on arrangements for comminuted raw mixtures in a continuous vulcanization machine or in a heated press at 160 to 190C and under pressure. The granulates are thereby so well embedded into the base plate that no separation between the strewed-on granulates and the base material can be observed along the granulate edges in a thorn bending test according to DIN 51 949, at a thorn diameter of 20 mm and a material thickness of 2 mm. Thus, the coloured particles form a single, gap free plane with the surface of the base plate. Preferably, between 80 and 450 g/m2 of coloured particles are strewn onto the web.
The particle slze is thereby selected so that the finished flooring includes discrete coloured areas of between 1 and 25 cm2. If one proceeds in such a way, surface portions of the flooring as small as 25 cm2 include approximately equal portions of the different colours used.
This guarantees that when the colour of the base web is achievable with a mixture of about equal portions of the coloured, strewed-on particles, edge clippings and left-overs generated during the manufacturing process can be recycled in the same process, since the first colour of the base plate will be achieved during the intense mixing in the extruder or on the mixing and rolling press used in the manufacture of the web.
Consequently, multi-coloured waste and clippings produced durlng manufacture of the present flooring can be completely recycled in line to 210~.~90 the same manufacture and process and, which is especially important, in varying amounts without colour deviations in the final product. The process provides for a sharp edged, gap-free embedding under pressure of the coloured granulates into the web.
.
,, . .-: , :
Claims (5)
1. A multi-coloured, patterned flooring having a thickness of 1 to 4 mm, comprising a web having a first colour and a granulate of different colour which is embedded into the web in an essentially even distribution at least at the surface of the web, the web and the granulate being made of cross-linkable elastomers and the granulate including at least two fractions of particles which have a colour different from one another and from the web, whereby the amounts and colours of the particles in the fractions are selected so that the mixed colour achieved upon homogeneous mixing of all components in the flooring essentially corresponds to the first colour.
2. A flooring as defined in claim 1, wherein the pattern of the flooring includes areas of three different colours.
3. A flooring as defined in claim 1 or 2, wherein the amounts and colours of the particles in the fractions are coordinated such that the mixed colour achieved upon homogeneous mixing of the particles in the fractions essentially corresponds to the first colour.
4. A process for the manufacture of a multi-coloured, patterned flooring of cross linkable elastomers as defined in claim 1 or 2, wherein the web is made by processing at least two differently coloured fractions of a starting material into granulates of separate colour, mixing the granulates, compressing the mixed granulates into a web by using a roller calander and solidifying the web by subsequent vulcanization.
5. A process for the manufacture of a multi-coloured patterned flooring of cross linkable elastomers as defined in claim 3, wherein the web is made by processing at least two differently coloured fractions of a starting material into granulates of separate colour, mixing the granulates, compressing the mixed granulates into a web by using a roller calander and solidifying the web by subsequent vulcanization.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE4226766A DE4226766C2 (en) | 1992-08-13 | 1992-08-13 | Multi-colored patterned flooring and process for its production |
| DEP4226766.8 | 1992-08-13 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2103990A1 CA2103990A1 (en) | 1994-02-14 |
| CA2103990C true CA2103990C (en) | 1999-02-02 |
Family
ID=6465449
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002103990A Expired - Lifetime CA2103990C (en) | 1992-08-13 | 1993-08-12 | Multi-coloured, patterned flooring and process of manufacture thereof |
Country Status (7)
| Country | Link |
|---|---|
| EP (1) | EP0582770B1 (en) |
| AT (1) | ATE145851T1 (en) |
| CA (1) | CA2103990C (en) |
| DE (2) | DE4226766C2 (en) |
| DK (1) | DK0582770T3 (en) |
| ES (1) | ES2096784T3 (en) |
| GR (1) | GR3022553T3 (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4405589C1 (en) * | 1994-02-22 | 1995-01-12 | Freudenberg Carl Fa | Floor covering having a multi-colour pattern and process for producing it |
| DE4426172C1 (en) * | 1994-07-23 | 1995-06-01 | Freudenberg Carl Fa | Multicoloured patterned rubber floor covering |
| DE19507113C1 (en) * | 1995-03-02 | 1996-02-15 | Freudenberg Carl Fa | Random patterned floor covering for sports halls |
| DE19527553C1 (en) * | 1995-07-27 | 1997-02-06 | Dlw Ag | Process for the production of homogeneous plastic flooring or sheets with non-directional color pattern |
| DE19649708C1 (en) * | 1996-11-29 | 1998-02-12 | Freudenberg Carl Fa | Rubber floor covering having characteristics varying smoothly |
| ATE510680T1 (en) * | 2002-08-13 | 2011-06-15 | Mondo Spa | METHOD FOR PRODUCING A FLOORING COVERING FROM ELASTOMERS AND FLOOR COVERING PRODUCED THEREFROM |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1167760A (en) * | 1956-06-25 | 1958-11-28 | Goodyear Tire & Rubber | Method for incorporating particles into a plastic sheet |
| DE2426714C3 (en) * | 1974-06-01 | 1978-12-14 | Dynamit Nobel Ag, 5210 Toisdorf | Method for feeding the starting materials into a screw press for producing a film web |
| DE3546215A1 (en) * | 1985-12-27 | 1987-07-02 | Dynamit Nobel Ag | METHOD FOR PRODUCING COLORED HOMOGENEOUS SURFACES FROM THERMOPLASTIC PLASTICS |
| FR2627518B1 (en) * | 1988-02-19 | 1990-12-07 | Gerland | RESILIENT FLOORING IN VULCANIZED ELASTOMER AND DECORATED IN MASS BY INCRUSTATION OF COLORED ELEMENTS AND METHOD OF MANUFACTURE THEREOF |
-
1992
- 1992-08-13 DE DE4226766A patent/DE4226766C2/en not_active Expired - Lifetime
-
1993
- 1993-02-09 DK DK93101997.0T patent/DK0582770T3/en active
- 1993-02-09 ES ES93101997T patent/ES2096784T3/en not_active Expired - Lifetime
- 1993-02-09 AT AT93101997T patent/ATE145851T1/en not_active IP Right Cessation
- 1993-02-09 EP EP93101997A patent/EP0582770B1/en not_active Expired - Lifetime
- 1993-02-09 DE DE59304654T patent/DE59304654D1/en not_active Expired - Lifetime
- 1993-08-12 CA CA002103990A patent/CA2103990C/en not_active Expired - Lifetime
-
1997
- 1997-02-12 GR GR970400243T patent/GR3022553T3/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| EP0582770B1 (en) | 1996-12-04 |
| ES2096784T3 (en) | 1997-03-16 |
| DE4226766C2 (en) | 1995-02-16 |
| EP0582770A1 (en) | 1994-02-16 |
| DE59304654D1 (en) | 1997-01-16 |
| DK0582770T3 (en) | 1997-04-01 |
| CA2103990A1 (en) | 1994-02-14 |
| GR3022553T3 (en) | 1997-05-31 |
| DE4226766A1 (en) | 1994-02-17 |
| ATE145851T1 (en) | 1996-12-15 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request |