Supercontracting fiber textiles

Patent metadata

Field	Value
Publication number	US-2018282937-A1
Application number	US-201815920306-A
Country	US
Kind code	A1
Filing date	Mar 13, 2018
Priority date	Mar 10, 2017
Publication date	Oct 4, 2018
Grant date	—

Abstract

The present disclosure relates generally to pre-treating textiles and methods of preparing textiles in a pre-treated state. Specifically, the present disclosure relates to pre-treating textiles comprising recombinant protein fibers.

First claim

What is claimed is:

1 . A method of making a recombinant protein textile in a greige state before pre-treatment, comprising:
a. providing a yarn comprising a plurality of recombinant protein fibers, wherein said recombinant protein fibers supercontract upon exposure to water; and b. generating a textile from said yarn, wherein said textile has a structure suitable for generating a pre-treated textile product with desirable properties after pre-treatment of said textile to induce supercontraction of said plurality of recombinant protein fibers.

2 .- 20 . (canceled)

21 . A method of pre-treating a textile, comprising:
a. providing a textile comprising yarn comprising a plurality of recombinant protein fibers, wherein said textile is in a greige state; and b. exposing said textile to a solution comprising water or alcohol, wherein said exposure shrinks the textile, thereby providing a pre-treated textile.

22 . The method of claim 21 , further comprising placing said textile in a mold or on a 3 dimensional structure to constrain the shrinking of said textile during said pre-treatment, thereby generating a desired final textile shape.

23 .- 24 . (canceled)

25 . The method of claim 21 , wherein said exposure of said textile to said solution shrinks the area of said textile by more than 20%, or more than 25%, or more than 30%, or more than 35%, or more than 40%, or more than 45%, or from 20% to 60%, or from 20% to 50%, or from 20% to 40%, or from 20% to 30%, or from 30% to 60%, or from 30% to 50%, or from 30% to 40%, or from 40% to 60%, or from 40% to 50%.

26 . The method of claim 21 , wherein said exposure of said textile to said solution shrinks by different amounts in the width and length, wherein the amount of shrinkage in the width, or the length, is from 5% to 50%, or from 10% to 50%, or from 15% to 50%, or from 20% to 50%, or from 25% to 50%, or from 5% to 40%, or from 10% to 40%, or from 15% to 40%, or from 20% to 40%, or from 25% to 40%.

27 .- 28 . (canceled)

29 . The method of claim 21 , wherein tension is applied to said textile during said exposure of said textile to said solution.

30 . The method of claim 29 , wherein said tension is from 1 to 100 MPa, or from 20 to 80 MPa, or from 30 to 70 MPa, or from 40 to 60 MPa, or greater than 60 MPa, or greater than 100 MPa.

31 . The method of claim 21 , wherein said textile is exposed to water at a temperature at a temperature below 50° C., or below 45° C., or below 40° C., or below 35° C., or below 30° C., or is exposed to water at a temperature of from 15° C. to 50° C., or from 15° C. to 45° C., or from 15° C. to 40° C., or from 15° C. to 35° C., or from 15° C. to 30° C., or from 15° C. to 25° C., or at approximately 20° C.

32 . The method of claim 21 , wherein said solution is greater than 99%, greater than 90%, greater than 80%, greater than70%, or greater than 60% water or alcohol, or a mixture thereof.

33 .- 36 . (canceled)

37 . The method of claim 21 , wherein said method further comprises drying said textile after said exposure of said textile to water.

38 . The method of claim 37 , wherein drying is performed at a temperature from 15° C. to 50° C., or from 15° C. to 45° C., or from 15° C. to 40° C., or from 15° C. to 35° C., or from 15° C. to 30° C., or from 15° C. to 25° C., or at approximately 20° C.

39 . The method of claim 0 , wherein tension is applied to said textile during drying.

40 . (canceled)

41 . The method of claim 21 , wherein said pre-treated textile is resistant to shrinkage or machine washable as compared to before said pre-treatment.

42 .- 51 . (canceled)

52 . The method of claim 21 , wherein said textile comprises a microknit or a microweave after said pre-treatment.

53 . The method of claim 21 , wherein said yarn comprises an outer sheath comprising the recombinant protein fiber, wherein the outer sheath comprises a greater twist as compared to a twist in a center core of the filament yarn; and wherein the mean dernier of the recombinant protein fiber is less than 5.

54 . (canceled)

55 . The method of claim 21 , wherein said recombinant protein fibers comprise a recombinant silk protein.

56 . The method of claim 55 , wherein said recombinant silk protein comprises repeat units, wherein each repeat unit has at least 95% sequence identity to a sequence that comprises from 2 to 20 quasi-repeat units, each quasi-repeat unit having a composition comprising [GGY-{GPG-X 1 ]n 1 -GPS-(A)n 2 ] (SEQ ID NO: 3), wherein for each quasi-repeat unit: X 1 is independently selected from the group consisting of SGGQQ (SEQ ID NO: 4), GAGQQ (SEQ ID NO: 5), GQGPY (SEQ ID NO: 6), AGQQ (SEQ ID NO: 7), and SQ; and n 1 is from 4 to 8, and n 2 is from 6 to 10.

57 . The method of claim 55 , wherein said recombinant silk protein comprises 2 or more concatenated repeats of SEQ ID NO: 1 or circularly permuted variants thereof.

58 .- 69 . (canceled)

70 . A textile comprising yarn comprising a plurality of recombinant protein fibers, wherein said textile has been supercontracted.

71 .- 76 . (canceled)

77 . The textile of claim 70 , wherein said plurality of recombinant protein fibers comprise a recombinant silk protein, wherein said recombinant silk protein comprises 2 or more concatenated repeats of SEQ ID NO: 1 or circularly permuted variants thereof.

78 .- 79 . (canceled)

Assignees

• Bolt Threads Inc

Inventors

• Bainbridge Jamie Mcausland
• Wray Lindsay
• Heinrich Mitchell
• Kittleson Joshua
• Breslauer David N

Classifications

• D10B2211/04

  Silk · CPC title

• D02G3/38

  Threads in which fibres, filaments, or yarns are wound with other yarns or filaments, {e.g. wrap yarns, i.e. strands of filaments or staple fibres are wrapped by a helically wound binder yarn; (D02G3/32 takes precedence)}; (covering endless core threads with fibres by using open-end spinning techniques D01H4/00) · CPC title

• D06M13/144 Primary

  Alcohols; Metal alcoholates (D06M13/11 takes precedence) · CPC title

• D06B3/10

  of fabrics (D06B3/24, D06B3/28, D06B3/32 take precedence; jiggers D06B3/32) · CPC title

• D04B1/14

  Other fabrics or articles characterised primarily by the use of particular thread materials · CPC title