Continuous filament yarn with pixel color effect

• US 5,715,584 A
• Filed: 03/25/1996
• Issued: 02/10/1998
• Est. Priority Date: 03/25/1996
• Status: Expired due to Term

• Current Assignee: Honeywell International Inc.
• Original Assignee: BASF Corporation (BASF SE)
• Inventors: Vickery, Leonard C. Jr., Wolstenholme, Ian, Thompson, Melvin R., Coons, Andrew M. III, King, Willis M.
• Primary Examiner(s): Falik, Andy
• Application Number:
  US08/622,196
• Time in Patent Office: 687 Days
• Field of Search: 28/140, 28/271, 28/276, 28/219, 28/220, 28/274, 28/258
• US Class Current: 28/140
• CPC Class Codes: D02G 1/161 yarn crimping air jets
• CPC Class Codes: D02G 1/165 characterised by the use of certain filaments or yarns
• CPC Class Codes: D02G 3/346 with coloured effects, i.e. by differential dyeing process
• CPC Class Codes: D02J 1/08 Interlacing constituent filaments without breakage thereof, e.g. by use of turbulent air streams

Abstract

Multiple (at least two) differently colored or colorable feed yarns are fed from their respective yarn packages to a multi-position interlacer manifold assembly. The feed yarns are maintained separate and apart from one another and are passed in this separated state through individual interlacer jets associated with the interlacer manifold assembly. The individual yarns are thereafter conveyed to a conventional yarn processing system (e.g., an apparatus known colloquially in the art as a "Gilbos" apparatus) where they are entangled with one another to provide a finished yarn in which the individual yarn components remain substantially coherent throughout the finished yarn. The individual interlaced yarns thus become entangled with one another when subjected to the yarn processing system without substantial inter-yarn blending or commingling occurring (which blending or commingling would thereby cause the constituent yarns to become nearly indistinguishable from one another). That is, each of the interlaced feed yarns will retain substantially its individual coherent identity in the final entangled yarn product so that its associated color is capable of being visually perceived along the length of the yarn--i.e., as color "pixels" in the yarn.

Claims

1. A process for making a continuous filament yarn product having or capable of having a pixel color effect, said process comprising the steps of:

(i) supplying at least first and second continuous filament feed yarns which are differently colored or colorable to an interlacer;

(ii) simultaneously, but independently, interlacing each said first and second feed yarns in said interlacer to obtain first and second interlaced yarns, respectively, each having spaced-apart nodes; and

subsequently

(iii) entangling the first and second interlaced yarns without substantial inter-yarn commingling to obtain a continuous filament yarn product in which each of said first and second interlaced yarns retains substantially its coherent identity in said yarn product, wherein

step (ii) includes contacting each of said first and second feed yarns with a flow of pressurized air which is periodically interrupted for up to about 50 milliseconds.

2. The process of claim 1, wherein step (ii) includes contacting each of said first and second feed yarns with pressurized air having a pressure of between about 10 psig to about 50 psig.

9. The process of claims 3 or 1, wherein step (i) includes supplying to said interlacer at least first and second bulked continuous filament carpet yarns as said first and second feed yarns.

10. The process of claim 9, wherein step (i) includes supplying to said interlacer at least first and second bulked continuous filament nylon-6 carpet yarns as said first and second feed yarns.

3. A process for making a continuous filament yarn product having or capable of having a pixel color effect, said process comprising the steps of:

(i) supplying at least first and second continuous filament feed yarns which are differently colored or colorable to an interlacer;

(ii) simultaneously, but independently, interlacing each said first and second feed yarns in said interlacer to obtain first and second interlaced yarns, respectively, each having spaced-apart nodes with a node harshness of less than 2.0; and

subsequently

(iii) entangling the first and second interlaced yarns without substantial inter-yarn commingling to obtain a continuous filament yarn product in which each of said first and second interlaced yarns retains substantially its coherent identity in said yarn product.

4. The process of claim 3, wherein step (ii) includes forming said nodes of said first and second interlaced yarns as regular nodes which are spaced apart by no more than 6 cms.

5. The process of claim 4, wherein step (ii) includes forming said nodes of said first and second interlaced yarns which are unequally spaced apart along the length of the first and second interlaced yarns.

6. The process of claim 5, wherein step (ii) includes substantially misaligning the nodes of said first interlaced yarn with the nodes of said second interlaced yarn.

7. The process of claim 3, wherein step (ii) includes contacting each of said first and second feed yarns with a substantially steady state flow of pressurized air.

8. The process of claim 7, wherein step (ii) includes contacting each of said first and second feed yarns with pressurized air having a pressure of between about 10 psig to about 50 psig.

11. The process of claim 3, wherein step (ii) includes passing each of said first and second feed yarns simultaneously through individual interlacer jets associated with a multi-jet interlacer manifold assembly.

12. The process of claim 11, wherein step (ii) includes supplying each of said interlacer jets with a substantially steady state flow of pressurized air having a pressure between about 10 psig to about 50 psig.

13. The process of claim 11, wherein step (ii) includes supplying each of said interlacer jets with a substantially steady state flow of pressurized air having a pressure between about 10 psig to about 50 psig, and periodically interrupting the steady state flow of pressurized air supplied to the interlacer jets for up to about 50 milliseconds.

14. The process of claim 3, wherein step (iii) includes entangling the first and second interlaced yarns so that said yarn product has a yarn harshness of less than about 100.

15. Apparatus for forming a continuous filament yarn product having or capable of having a pixel color effect, comprising:

a creel for supplying first and second feed yarns;

an interlacer for simultaneously independently interlacing each of said first and second feed yarns to obtain first and second interlaced yarns, respectively, each having spaced-apart nodes; and

a yarn entangler for entangling the first and second interlaced yarns without substantial inter-yarn commingling to obtain a continuous filament yarn product in which each of said first and second interlaced yarns retain substantially its coherent identity.

16. The apparatus of claim 15, wherein said interlacer includes an interlacer manifold assembly having multiple interlacer jets each for receiving and interlacing a respective one of said first and second feed yarns.

17. The apparatus of claim 16, wherein said interlacer jets include a jet body, a passageway formed through said jet body, and a fluid inlet port formed substantially perpendicularly to said passageway.

18. The apparatus of claim 17, wherein said interlacer includes a main supply port for supplying pressurized fluid to each of said fluid inlet ports of said interlacer jets.

19. The apparatus of claim 17, wherein said interlacer jet is formed of relatively larger and smaller diameter cylindrical passageways oriented end-to-end.

20. A continuous filament yarn product having or capable of having a pixel color effect comprised of at least two interlaced differently colored or colorable yarns each having spaced apart nodes with a node harshness of less than about 2.0, said at least two interlaced yarns being entangled with one another without substantial inter-yarn commingling such that each of said at least two interlaced yarns retains substantially its respective coherent identity in said yarn product.

21. The yarn product of claim 20, having a yarn harshness of less than about 100.

22. The yarn product of claim 20, wherein said nodes of said at least two interlaced yarns are regular nodes which are spaced apart by no more than 6 cms.

23. The yarn product of claim 22, wherein the nodes of said at least two interlaced yarns are unequally spaced-apart.

24. The yarn product of claim 23, wherein the nodes of a first one of said interlaced yarns are misaligned with the nodes of a second one of said interlaced yarns.

25. A carpet which includes tufts of a continuous filament yarn product having or capable of having a pixel color effect comprised of at least two interlaced differently colored or colorable yarns each having spaced apart nodes with a node harshness of less than about 2.0, said at least two interlaced yarns being entangled with one another without substantial inter-yarn commingling such that each of said at least two interlaced yarns retains substantially its respective coherent identity in said yarn product.

26. The carpet of claim 25, wherein the yarn product has a yarn harshness of less than about 100.

27. The carpet of claim 25, wherein said nodes of said at least two interlaced yarns are regular nodes which are spaced apart by no more than 6 cms.

28. The carpet of claim 27, wherein the nodes of said at least two interlaced yarns are unequally spaced apart.

29. The carpet of claim 28, wherein the nodes of a first one of said interlaced yarns are misaligned with the nodes of a second one of said interlaced yarns.