CA2442187A1 - Process and apparatus for creating color effects in extrudable material - Google Patents

Process and apparatus for creating color effects in extrudable material Download PDF

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Publication number
CA2442187A1
CA2442187A1 CA002442187A CA2442187A CA2442187A1 CA 2442187 A1 CA2442187 A1 CA 2442187A1 CA 002442187 A CA002442187 A CA 002442187A CA 2442187 A CA2442187 A CA 2442187A CA 2442187 A1 CA2442187 A1 CA 2442187A1
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CA
Canada
Prior art keywords
color
band
stream
static mixer
viscous material
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
Application number
CA002442187A
Other languages
French (fr)
Other versions
CA2442187C (en
Inventor
Marie-Christine Piedboeuf
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Pelican International Inc
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Pelican International Inc
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Filing date
Publication date
Application filed by Pelican International Inc filed Critical Pelican International Inc
Priority to CA2442187A priority Critical patent/CA2442187C/en
Publication of CA2442187A1 publication Critical patent/CA2442187A1/en
Application granted granted Critical
Publication of CA2442187C publication Critical patent/CA2442187C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/07—Flat, e.g. panels
    • B29C48/08—Flat, e.g. panels flexible, e.g. films
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
    • B01F25/40—Static mixers
    • B01F25/42—Static mixers in which the mixing is affected by moving the components jointly in changing directions, e.g. in tubes provided with baffles or obstructions
    • B01F25/43—Mixing tubes, e.g. wherein the material is moved in a radial or partly reversed direction
    • B01F25/431—Straight mixing tubes with baffles or obstructions that do not cause substantial pressure drop; Baffles therefor
    • B01F25/4314—Straight mixing tubes with baffles or obstructions that do not cause substantial pressure drop; Baffles therefor with helical baffles
    • B01F25/43141—Straight mixing tubes with baffles or obstructions that do not cause substantial pressure drop; Baffles therefor with helical baffles composed of consecutive sections of helical formed elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
    • B01F25/40—Static mixers
    • B01F25/42—Static mixers in which the mixing is affected by moving the components jointly in changing directions, e.g. in tubes provided with baffles or obstructions
    • B01F25/43—Mixing tubes, e.g. wherein the material is moved in a radial or partly reversed direction
    • B01F25/431—Straight mixing tubes with baffles or obstructions that do not cause substantial pressure drop; Baffles therefor
    • B01F25/4316—Straight mixing tubes with baffles or obstructions that do not cause substantial pressure drop; Baffles therefor the baffles being flat pieces of material, e.g. intermeshing, fixed to the wall or fixed on a central rod
    • B01F25/43161—Straight mixing tubes with baffles or obstructions that do not cause substantial pressure drop; Baffles therefor the baffles being flat pieces of material, e.g. intermeshing, fixed to the wall or fixed on a central rod composed of consecutive sections of flat pieces of material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/80—Forming a predetermined ratio of the substances to be mixed
    • B01F35/81—Forming mixtures with changing ratios or gradients
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/16—Articles comprising two or more components, e.g. co-extruded layers
    • B29C48/17—Articles comprising two or more components, e.g. co-extruded layers the components having different colours
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/16—Articles comprising two or more components, e.g. co-extruded layers
    • B29C48/17—Articles comprising two or more components, e.g. co-extruded layers the components having different colours
    • B29C48/175—Articles comprising two or more components, e.g. co-extruded layers the components having different colours comprising a multi-coloured single component, e.g. striated, marbled or wood-like patterned
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/16—Articles comprising two or more components, e.g. co-extruded layers
    • B29C48/18—Articles comprising two or more components, e.g. co-extruded layers the components being layers
    • B29C48/19—Articles comprising two or more components, e.g. co-extruded layers the components being layers the layers being joined at their edges
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/362—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using static mixing devices
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/49—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using two or more extruders to feed one die or nozzle
    • B29C48/495—Feed-blocks

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Dispersion Chemistry (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)

Abstract

A process for creating color effects in extrudable material, such as plastic. The process includes the steps of providing a first flow of viscous material of a first color and a second flow of viscous material of a second color, the second color being different from the first color. Next, the first and second flows are combined to form a stream of viscous material, where the stream is characterized by a first band of the first color and a second band of the second color, the second band being adjacent to the first band. The stream of viscous material is fed through a static mixer such that, upon exiting the static mixer, the stream is further characterized by a third band of a third color, the third color being different from the first and second colors, the third band being located between the first and second bands.

Claims (37)

1. A process for creating color effects in extrudable material, said process comprising:
a) providing a first flow of viscous material of a first color;
b) providing a second flow of viscous material of a second color, said second color being different from said first color;
c) combining said first flow and said second flow to form a stream of viscous material, said stream being characterized by a first band of said first color and a second band of said second color, said second band being adjacent to said first band;
d) feeding said stream through a static mixer such that, upon exiting the static mixer, said stream is further characterized by a third band of a third color, said third color being different from said first and second colors.
2. A process as defined in claim 1, wherein said third band is located between said first band and said second band.
3. A process as defined in claim 1, wherein said third color is a mix of said first and second colors.
4. A process as defined in claim 1, wherein said static mixer is operative to mix together a portion of each of said first and second bands for generating said third band.
5. A process as defined in claim 1, wherein said first, second and third bands of said stream form horizontal layers.
6. A process as defined in claim 1, wherein said first, second and third bands of said stream form vertical layers.
7. A process as defined in claim 1, wherein said first, second and third bands of said stream form concentric layers.
8. A process as defined in claim 1, wherein said static mixer includes a helical mixer.
9. A process as defined in claim 1, wherein, upon exiting the static mixer, said stream is further characterized by at least one additional band located between said third band and either one of said first and second bands.
10. A process as defined in claim 9, wherein said at least one additional band is characterized by a color selected from the group consisting of: said first color; said second color; a blend of said first and second colors; a blend of said first and third colors; and a blend of said second and third colors.
11. A process as defined in claim 10, wherein said at least one additional band provides for a gradation in color from either one of said first and second colors to said third color.
12. A process as defined in claim 1, wherein, once said stream has exited said static mixer, said process includes the step of forming said stream of viscous material into a sheet.
13. A process as defined in claim 1, wherein, once said stream has exited said static mixer, said process includes the step of forming said stream of viscous material into a tube.
14. A process as defined in claim 1, wherein said viscous material is viscous plastic.
15. A process for manufacturing a sheet from extrudable material, said process comprising:
a) providing a first flow of viscous material of a first color;
b) providing a second flow of viscous material of a second color, said second color being different from said first color;
c) combining said first flow and said second flow to form a stream of viscous material, said stream being characterized by a first band of said first color and a second band of said second color, said second band being adjacent to said first band;
d) feeding said stream through a static mixer such that, upon exiting the static mixer, said stream is further characterized by a third band a third color, said third color being different from said first and second colors, said third band being located between said first and second bands;
e) upon the exit of said stream from the static mixer, feeding said stream through a die for forming a sheet of material characterized by a gradation of color.
16. The use of the process of claim 15 to manufacture plastic articles characterized by color gradation effects.
17. The use of the process of claim 15 to manufacture plastic kayaks characterized by color gradation effects.
18. A system for creating color effects in extrudable material, said system comprising:
a) a first extruder for providing a first flow of viscous material of a first color;
b) a second extruder for providing a second flow of viscous material of a second color, the second color being different from the first color;
c) a feed block for combining said first and second flows into a stream of viscous material, said stream being characterized by a first band of said first color and a second band of said second color, said second band being adjacent to said first band;
d) a static mixer for receiving said stream from said feed block, said static mixer operative to partially mix said first and second bands of said stream such that, upon exiting said static mixer, said stream is further characterized by a third band of a third color, said third color being different from said first and second colors, said third band being located between said first and second bands.
19. A system as defined in claim 18, wherein said feed block is operative to position said first and second flows in horizontal layers.
20. A system as defined in claim 18, wherein said feed block is operative to position said first and second flows in vertical layers.
21. A system as defined in claim 18, wherein said feed block is operative to position said first and second flows in concentric rings.
22. A system as defined in claim 18, wherein said static mixer includes a helical mixer.
23. A system as defined in claim 18, further comprising at least one additional extruder for providing at least one additional flow of viscous material.
24. A system as defined in claim 18, wherein upon exiting said static mixer, said stream is further characterized by at least one additional band located between said third band and either one of said first and second bands.
25. A system as defined in claim 24, wherein said at least one additional band is characterized by a color selected from the group consisting of: said first color; said second color; a blend of said first and second colors; a blend of said first and third colors; and a blend of said second and third colors.
26. A system as defined in claim 24, wherein said at least one additional band provides for a gradation in color from either one of said first and second colors to said third color.
27. A system as defined in claim 18, further comprising a die for receiving said stream from said static mixer, said die operative to form said stream of viscous material into a sheet.
28. A system as defined in claim 18, further comprising a die for receiving said stream from said static mixer, said die operative to form said stream of viscous material into a tube.
29. A system as defined in claim 18, wherein said viscous material is viscous plastic.
30. An apparatus for creating color effects in extruded material, said apparatus comprising:
a) an input for receiving a stream of viscous material, said stream being characterized by a first band of a first color and a second band of a second color, said second band being adjacent to said first band;
b) a static mixer operative to mix at least a portion of said first band with at least a portion of said second band such that, upon exiting said static mixer, said stream is further characterized by a third band of a third color, said third color being different from said first and second colors, said third band being located between said first and second bands.
31. An apparatus as defined in claim 30, wherein said static mixer includes a helical mixer.
32. An apparatus as defined in claim 30, wherein upon exiting said static mixer, said stream is further characterized by at least one additional band located between said third band and either one of said first and second bands.
33. An apparatus as defined in claim 32, wherein said at least one additional band is characterized by a color selected from the group consisting of: said first color; said second color; a blend of said first and second colors; a blend of said first and third colors; and a blend of said second and third colors.
34. An apparatus as defined in claim 33, wherein said at least one additional band provides for a gradation in color from either one of said first and second colors to said third color.
35. A system for creating color effects in extrudable material, said system comprising:

a) a first extruder for providing a first flow of viscous material of a first color;
b) a second extruder for providing a second flow of viscous material of a second color, the second color being different from the first color;
c) a feed block for combining said first and second flows into a stream of viscous material, said stream being characterized by a first band of said first color and a second band of said second color, said second band being adjacent to said first band;
d) a static mixer for receiving said stream from said feed block, said static mixer operative to partially mix said first and second bands of said stream such that, upon exiting said static mixer, said stream is further characterized by a third band of a third color, said third color being different from said first and second colors;
e) a combining device for combining said stream characterized by a third color with at least one additional stream of viscous material provided by at least one additional extruder.
36. A system for creating color effects as defined in claim 35, wherein said combining device forms a co-extruded stream having at least two layers.
37. A system for creating color effects as defined in claim 36, wherein said system further comprises molding said stream having at least two layers into a final form.
CA2442187A 2003-09-23 2003-09-23 Process and apparatus for creating color effects in extrudable material Expired - Lifetime CA2442187C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA2442187A CA2442187C (en) 2003-09-23 2003-09-23 Process and apparatus for creating color effects in extrudable material

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Application Number Priority Date Filing Date Title
CA2442187A CA2442187C (en) 2003-09-23 2003-09-23 Process and apparatus for creating color effects in extrudable material

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CA2442187A1 true CA2442187A1 (en) 2005-03-23
CA2442187C CA2442187C (en) 2010-11-16

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010066457A1 (en) * 2008-12-10 2010-06-17 Technische Universiteit Eindhoven Static mixer comprising a static mixing element, method of mixing a fluid in a conduit and a formula for designing such a static mixing element
US10525613B2 (en) 2015-12-23 2020-01-07 Pelican International Inc. Process, apparatus and system for creating extrudable material having color effects and products made with extrudable material created with same
US11660782B2 (en) 2018-04-23 2023-05-30 Pelican International Inc. Process, apparatus and system for creating extruded material having color effects and products made with extruded material created with same

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010066457A1 (en) * 2008-12-10 2010-06-17 Technische Universiteit Eindhoven Static mixer comprising a static mixing element, method of mixing a fluid in a conduit and a formula for designing such a static mixing element
US10525613B2 (en) 2015-12-23 2020-01-07 Pelican International Inc. Process, apparatus and system for creating extrudable material having color effects and products made with extrudable material created with same
US11660782B2 (en) 2018-04-23 2023-05-30 Pelican International Inc. Process, apparatus and system for creating extruded material having color effects and products made with extruded material created with same

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Publication number Publication date
CA2442187C (en) 2010-11-16

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Effective date: 20230925