CA2503739A1 - Soft tissue products containing selectively treated fibers - Google Patents

Soft tissue products containing selectively treated fibers Download PDF

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Publication number
CA2503739A1
CA2503739A1 CA002503739A CA2503739A CA2503739A1 CA 2503739 A1 CA2503739 A1 CA 2503739A1 CA 002503739 A CA002503739 A CA 002503739A CA 2503739 A CA2503739 A CA 2503739A CA 2503739 A1 CA2503739 A1 CA 2503739A1
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CA
Canada
Prior art keywords
pulp fibers
tissue
tissue sheet
selectively
treated pulp
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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
CA002503739A
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French (fr)
Other versions
CA2503739C (en
Inventor
Thomas Gerard Shannon
James Daniel Lorenz
David Andrew Moline
Troy Michael Runge
Thomas Hampshire Schulz
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.)
Kimberly Clark Worldwide Inc
Original Assignee
Kimberly-Clark Worldwide, Inc.
Thomas Gerard Shannon
James Daniel Lorenz
David Andrew Moline
Troy Michael Runge
Thomas Hampshire Schulz
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Application filed by Kimberly-Clark Worldwide, Inc., Thomas Gerard Shannon, James Daniel Lorenz, David Andrew Moline, Troy Michael Runge, Thomas Hampshire Schulz filed Critical Kimberly-Clark Worldwide, Inc.
Publication of CA2503739A1 publication Critical patent/CA2503739A1/en
Application granted granted Critical
Publication of CA2503739C publication Critical patent/CA2503739C/en
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Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
    • D21H17/20—Macromolecular organic compounds
    • D21H17/33—Synthetic macromolecular compounds
    • D21H17/46—Synthetic macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • D21H17/59—Synthetic macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
    • D21H21/14—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties characterised by function or properties in or on the paper
    • D21H21/16—Sizing or water-repelling agents

Abstract

The present invention is a tissue product comprising at least one tissue sheet. Each tissue sheet comprises a first side and an opposing second side.
At least one tissue sheet comprises selectively treated pulp fiber treated with at least one hydrophobic chemical additive distributed non-uniformly in the z-direction within the tissue sheet. The tissue sheet has a % z-directional hydrophobic chemical additive gradient between the first side of the tissue sheet and the second side of the tissue sheet of about 20 % or greater.

Claims (121)

1. A tissue product comprising at least one tissue sheet, each tissue sheet comprises a first side and an opposing second side, wherein at least one tissue sheet comprises selectively treated pulp fiber treated with at least one hydrophobic chemical additive distributed non-uniformly in the z-direction within the tissue sheet such that the tissue sheet has a % z-directional hydrophobic chemical additive gradient between the first side of the tissue sheet and the second side of the tissue sheet of about 20% or greater.
2. The tissue product of Claim 1, wherein the tissue product is a single ply tissue product.
3. The tissue product of Claim 1, wherein the tissue product is a multi-ply tissue product comprising at least two plies.
4. The tissue product of Claim 1, wherein the selectively treated pulp fibers comprise long pulp fibers having a length of about 1.50 mm or greater.
5. The tissue product of Claim 4, the tissue product further comprising selectively non-treated pulp fibers.
6. The tissue product of Claim 5, wherein the selectively non-treated pulp fibers comprise short pulp fibers having a length of about 1.50 mm or less.
7. The tissue product of Claim 4, wherein the tissue sheet of the tissue product comprising the selectively treated pulp fiber further comprises the selectively non-treated pulp fiber.
8. The tissue product of Claim 1, wherein the selectively treated pulp fibers have been treated with a polysiloxane have the general structure of:

wherein:
each R1 - R8 moiety comprises independently an organofunctional group or mixtures thereof; and, y is an integer greater than 1.
9. The tissue product of Claim 8, wherein each R1 - R8 comprises independently a C1 or higher of alkyl groups, aryl groups, ethers, polyethers, polyesters, amines, imines, amides, or mixtures thereof.
10. The tissue product of Claim 1, wherein the polysiloxane pretreated pulp fibers in at least one layer have been treated with a amino functional polysiloxane having the general structure of:

wherein:
x and y are integers > 0;
the mole ratio of x to (x + y) is from about 0.005 percent to about 25 percent;

each R1 - R9 moiety comprises independently an organofunctional group or mixtures thereof; and, R10 comprises an amino functional moiety or mixtures thereof.
11. The tissue product of Claim 10, wherein each R1 - R9 moiety comprises independently a C1 or higher of alkyl groups, aryl groups, ethers, polyethers, polyesters, amides, or mixtures thereof.
12. The tissue product of Claim 1, wherein the polysiloxane pretreated pulp fibers have been treated with an amino functional polysiloxane having the general structure of:

wherein:
x and z are integers > 0;
y is an integer >=0;
the mole ratio of x to (x + y + z) is from about 0.05 percent to about 95 percent;
the mole ratio of y to (x+y+z) is from about 0 percent to about 25 percent;
each R0 - R9 comprises independently an organofunctional group or mixtures thereof;
R10 comprises an amino functional moiety or mixtures thereof; and, R11 comprises a hydrophilic functionality or mixtures thereof.
13. The tissue product of Claim 12, wherein each R0 - R9 moiety comprises independently a C1 or higher of alkyl groups, aryl groups, ethers, polyethers, polyesters, amines, imines, amides, substituted amides, or mixtures thereof.
14. The tissue product of Claim 12, wherein R10 comprises an amino functional moiety selected from a primary amine, secondary amine, tertiary amine, quaternary amine, unsubstituted amide, and mixtures thereof.
15. The tissue product of Claim 12, wherein R11 comprises a polyether functional group having the formula: -R12-(R13-O)a -(R14O)b -R15 wherein:

each R12, R13, and R14 comprises independently branched C1-4alkyl groups, linear C1-4 alkyl groups, or mixtures thereof;
R15 comprises H, C1-30 alkyl group, or mixtures thereof; and, a and b are integers of from about 1 to about 100.
16. The tissue product of Claim 1, wherein the first side of the tissue sheet having the highest a level of polysiloxane is about 3 atomic % Si or greater.
17. The tissue product of Claim 1, wherein the polysiloxane has a viscosity of about 25 centipose or greater.
18. The tissue product of Claim 1, wherein the hydrophobic chemical additive is delivered to the selectively treated pulp fibers as a neat hydrophobic chemical additive or as a mixture of neat hydrophobic chemical additives.
19. The tissue product of Claim 1, wherein the polysiloxane is topically applied to the tissue sheet of the tissue product.
20. The tissue product of Claim 1, wherein the polysiloxane is delivered to the tissue product as selectively treated pulp fibers.
21. The tissue product of Claim 1, wherein the selectively treated pulp fibers comprise short pulp fibers having a length of about 1.00 mm or less.
22. The tissue product of Claim 21, the tissue product further comprising selectively non-treated pulp fibers.
23. The tissue product of Claim 22, wherein the selectively non-treated pulp fibers comprise long pulp fibers having a length of about 2.00 mm or greater.
24. The tissue product of Claim 21, wherein the tissue sheet of the tissue product comprising the selectively treated pulp fiber further comprises the selectively non-treated pulp fiber.
25. The tissue product of Claim 1, wherein at least one of the hydrophobic chemical additive has a water solubility of about 3 g / 100 cc or less in deionized water.
26. The tissue product of Claim 5, wherein the total weight of the selectively treated pulp fibers relative to the total weight of the pulp fibers of the tissue sheet comprising the selectively treated pulp fibers and the selectively non-treated pulp fibers ranges from about 0.5% to about 90% on a dry fiber basis.
27. The tissue product of Claim 22, wherein the total weight of the selectively treated pulp fibers relative to the total weight of the pulp fibers of the tissue sheet comprising the selectively treated pulp fibers and the selectively non-treated pulp fibers ranges from about 0.5% to about 90% on a dry fiber basis.
28. The tissue product of Claim 1, wherein the amount of the hydrophobic chemical additive on the selectively treated pulp fibers ranges from about 0.01 % to about 10% by weight of the dry selectively treated pulp fibers.
29. The tissue product of Claim 1, wherein the amount of the hydrophobic chemical additive within the tissue sheet comprising the selectively treated pulp fibers ranges from about 0.01 % to about 5% by weight of the total dry fiber weight of the tissue sheet.
30. The tissue product of Claim 1, wherein the tissue product has a bulk of about 2 cm3 /
g or greater.
31. The tissue product of Claim 1, wherein the hydrophobic chemical additive comprises polysiloxanes, mineral oils, aloe vera oil and extracts, tocopherols, and polypropylene glycols.
32. A tissue sheet having a first side and an opposing second side comprising selectively treated pulp fibers treated with at least one hydrophobic chemical additive and selectively non-treated pulp fibers wherein the selectively treated pulp fibers constitute about 95% or less of the total weight of the tissue sheet.
33. The tissue sheet of Claim 32, wherein the selectively treated pulp fibers comprise long pulp fibers having a length of about 1.50 mm or greater.
34. The tissue sheet of Claim 33, the tissue product further comprising selectively non-treated pulp fibers.
35. The tissue sheet of Claim 34, wherein the selectively non-treated pulp fibers comprise short pulp fibers having a length of about 1.50 mm or less.
36. The tissue sheet of Claim 32, wherein the selectively treated pulp fibers have been treated with a polysiloxane have the general structure of:

wherein:
each R1 - R8 moiety comprises independently an organofunctional group or mixtures thereof; and, y is an integer greater than 1.
37. The tissue sheet of Claim 36, wherein each R1 - R8 comprises independently a C1 or higher of alkyl groups, aryl groups, ethers, polyethers, polyesters, amines, imines, amides, or mixtures thereof.
38. The tissue sheet of Claim 32, wherein the polysiloxane pretreated pulp fibers in at least one layer have been treated with a amino functional polysiloxane having the general structure of:

wherein:
x and y are integers > 0;
the mole ratio of x to (x + y) is from about 0.005 percent to about 25 percent;
each R1 - R9 moiety comprises independently an organofunctional group or mixtures thereof; and, R10 comprises an amino functional moiety or mixtures thereof.
39. The tissue sheet of Claim 38, wherein each R1 - R9 moiety comprises independently a C1 or higher of alkyl groups, aryl groups, ethers, polyethers, polyesters, amides, or mixtures thereof.
40. The tissue sheet of Claim 32, wherein the polysiloxane pretreated pulp fibers have been treated with an amino functional polysiloxane having the general structure of:

wherein:
x and z are integers > 0;
y is an integer >=0;
the mole ratio of x to (x + y + z) is from about 0.05 percent to about 95 percent;
the mole ratio of y to (x+y+z) is from about 0 percent to about 25 percent;
each R0 - R9 comprises independently an organofunctional group or mixtures thereof;

R10 comprises an amino functional moiety or mixtures thereof; and, R11 comprises a hydrophilic functionality or mixtures thereof.
41. The tissue sheet of Claim 40, wherein each R0 - R9 moiety comprises independently a C1 or higher of alkyl groups, aryl groups, ethers, polyethers, polyesters, amines, imines, amides, substituted amides, or mixtures thereof.
42. The tissue sheet of Claim 40, wherein R10 comprises an amino functional moiety.
selected from a primary amine, secondary amine, tertiary amine, quaternary amine, unsubstituted amide, and mixtures thereof.
43. The tissue sheet of Claim 40, wherein R11 comprises a polyether functional group having the formula: -R12-(R13-O)a -(R14O)b -R15 wherein:
each R12, R13, and R14 comprises independently branched C1-4 alkyl groups, linear C1-4 alkyl groups, or mixtures thereof;
R15 comprises H, C1-30 alkyl group, or mixtures thereof; and, a and b are integers of from about 1 to about 100.
44. The tissue sheet of Claim 32, wherein the side of the tissue sheet having the highest level of polysiloxane is about 3 atomic % Si or greater.
45. The tissue sheet of Claim 32, wherein the polysiloxane has a viscosity of about 25 centipose or greater.
46. The tissue sheet of Claim 32, wherein the hydrophobic chemical additive is delivered to the selectively treated pulp fibers as a neat hydrophobic chemical additive or as a mixture of neat hydrophobic chemical additives.
47. The tissue sheet of Claim 32, wherein the polysiloxane is topically applied to the tissue sheet.
48. The tissue sheet of Claim 32, wherein the polysiloxane is delivered to the tissue sheet as selectively treated pulp fibers.
49. The tissue sheet of Claim 32, wherein the selectively treated pulp fibers comprise short pulp fibers having a length of about 1.00 mm or less.
50. The tissue sheet of Claim 49, the tissue product further comprising selectively non-treated pulp fibers.
51 . The tissue sheet of Claim 50, wherein the selectively non-treated pulp fibers comprise long pulp fibers having a length of about 2.00 mm or greater.
52. The tissue sheet of Claim 32, wherein at least one of the hydrophobic chemical additive has a water solubility of about 3g / 100 cc or less in deionized water
53. The tissue sheet of Claim 32, wherein the total weight of the selectively treated pulp fibers relative to the total weight of the pulp fibers of the tissue sheet comprising the selectively treated pulp fibers and the selectively non-treated pulp fibers ranges from about 0.5° to about 90% on a dry fiber basis.
54. The tissue sheet of Claim 32, wherein the amount of the hydrophobic chemical additive on the selectively treated pulp fibers ranges from about 0.01 % to about 10% by weight of the dry selectively treated pulp fibers.
55. The tissue sheet of Claim 32, wherein the amount of the hydrophobic chemical additive within the tissue sheet comprising the selectively treated pulp fibers ranges from about 0.01% to about 5% by weight of the total dry fiber weight of the tissue sheet.
56. The tissue sheet of Claim 32, wherein the tissue product has a bulk of about 2 cm3 /
g or greater.
57. The tissue sheet of Claim 32, wherein the hydrophobic chemical additive comprises polysiloxanes, mineral oils, aloe vera oil and extracts, tocopherols, and polypropylene glycols.
58. The tissue sheet of Claim 32, wherein the tissue sheet is converted into a tissue product.
59. The tissue sheet of Claim 58, wherein the tissue product is a single ply tissue product.
60. The tissue sheet of Claim 58, wherein the tissue product is a multi-ply tissue product comprising at least two plies.
61. A method of making a tissue sheet that comprises a first side, an opposing second side, and selectively treated pulp fibers treated with at least one hydrophobic chemical additive comprising:

(a) forming a first aqueous suspension of pulp fibers comprising pulp fibers selectively treated with at least one hydrophobic chemical additive;

(b) forming at least a second aqueous suspension of pulp fibers wherein the second aqueous suspension of pulp fibers comprise selectively non-treated pulp fibers;

(c) depositing the first and second aqueous suspensions of pulp fibers onto a forming fabric to form a wet layered tissue sheet; and, (d) dewatering the wet layered tissue sheet to form a dewatered layered tissue sheet, wherein the selectively treated pulp fibers are distributed non-uniformly in the z-direction within the tissue sheet such that the tissue sheet has a % z-directional hydrophobic chemical additive gradient between the first side of the tissue sheet and the second side of the tissue sheet of about 20% or greater.
62. The method of Claim 61, further comprising forwarding the first aqueous suspension of pulp fibers to a stratified headbox having at least two layers such that the first aqueous suspension of pulp fiber is directed to one of the outside layers of the stratified headbox.
63. The method of Claim 62, further comprising forwarding the second aqueous suspension of pulp fibers to the other outside layer of the stratified headbox thereby forming a layered wet tissue sheet comprising one outer layer comprising hydrophobic chemical additive selectively treated pulp fibers and the other outer layer comprising non-treated pulp fibers.
64. The method of Claim 61, wherein a tissue product comprising the tissue sheet is a single ply tissue product.
65. The method of Claim 61, wherein a tissue product comprising the tissue sheet is a multi-ply tissue product comprising at least two plies.
66. The method of Claim 61, wherein the selectively treated pulp fibers comprise long pulp fibers having a length of about 1.50 mm or greater.
67. The method of Claim 66, the tissue product further comprising selectively non-treated pulp fibers.
68. The method of Claim 67, wherein the selectively non-treated pulp fibers comprise short pulp fibers having a length of about 1.50 mm or less.
69. The method of Claim 66, wherein the tissue sheet further comprises the selectively non-treated pulp fiber.
70. The method of Claim 61, wherein the selectively treated pulp fibers have been treated with a polysiloxane have the general structure of:

wherein:

each R1 - R8 moiety comprises independently an organofunctional group or mixtures thereof; and, y is an integer greater than 1.
71. The method of Claim 70, wherein each R1 - R8 comprises independently a C1 or higher of alkyl groups, aryl groups, ethers, polyethers, polyesters, amines, imines, amides, or mixtures thereof.
72. The method of Claim 61, wherein the polysiloxane is an amino functional polysiloxane.
73. The method of Claim 61, wherein the polysiloxane has the general structure:

wherein:

x and y are integers > 0;

the mole ratio of x to (x + y) is from about 0.005 percent to about 25 percent;

each R1 - R9 moiety comprises independently an organofunctional group or mixtures thereof; and, R10 comprises an amino functional moiety or mixtures thereof.
74. The method of Claim 73, wherein each R1 - R9 moiety comprises independently a C1 or higher of alkyl groups, aryl groups, ethers, polyethers, polyesters, amides, or mixtures thereof.
75. The method of Claim 61, wherein the polysiloxane has the general structure of:

wherein:

x and z are integers > 0;

y is an integer >=0;

the mole ratio of x to (x + y + z) is from about 0.05 percent to about 95 percent;

the mole ratio of y to (x+y+z) is from about 0 percent to about 25 percent;

each R0 - R9 comprises independently an organofunctional group or mixtures thereof;

R10 comprises an amino functional moiety or mixtures thereof; and, R11 comprises a hydrophilic functionality or mixtures thereof.
76. The method of Claim 75, wherein each R0 - R9 moiety comprises independently a C1 or higher of alkyl groups, aryl groups, ethers, polyethers, polyesters, amines, imines, amides, substituted amides, or mixtures thereof.
77. The method of Claim 75, wherein R10 comprises an amino functional moiety selected from a primary amine, secondary amine, tertiary amine, quaternary amine, unsubstituted amide, and mixtures thereof.
78. The method of Claim 75, wherein R11 comprises a polyether functional group having the formula: -R12-(R13-O)a-(R14O)b-R15 wherein:

each R12, R13, and R14 comprises independently branched C1-4alkyl groups, linear C1-4 alkyl groups, or mixtures thereof;

R15 comprises H, C1-30 alkyl group, or mixtures thereof; and, a and b are integers of from about 1 to about 100.
79. The method of Claim 61, wherein the side of the tissue sheet having the highest level of polysiloxane is about 3 atomic % Si or greater.
80. The method of Claim 61, wherein the polysiloxane has a viscosity of about centipose or greater.
81. The method of Claim 61, wherein the hydrophobic chemical additive is delivered to the selectively treated pulp fibers as a neat hydrophobic chemical additive or as a neat mixture of hydrophobic chemical additives.
82. The method of Claim 61, wherein the polysiloxane is delivered to the tissue product as selectively treated pulp fibers.
83. The method of Claim 61, wherein the selectively treated pulp fibers comprise short pulp fibers having a length of about 1.00mm or less.
84. The method of Claim 83, wherein the selectively non-treated pulp fibers comprise long pulp fibers having a length of about 2.00 mm or greater.
85. The method of Claim 61, wherein at least one of the hydrophobic chemical additive has a water solubility of about 3 g / 100 cc or less in deionized water
86. The method of Claim 61, wherein the total weight of the selectively treated pulp fibers relative to the total weight of the pulp fibers of the tissue sheet comprising the selectively treated pulp fibers and the selectively non-treated pulp fibers ranges from about 0.5% to about 90% on a dry fiber basis.
87. The method of Claim 61, wherein the amount of the hydrophobic chemical additive on the selectively treated pulp fibers ranges from about 0.01 % to about 10%
by weight of the dry selectively treated pulp fibers.
88. The method of Claim 61, wherein the amount of the hydrophobic chemical additive within the tissue sheet comprising the selectively treated pulp fibers ranges from about 0.01 % to about 5% by weight of the total dry fiber weight of the tissue sheet.
89. The method of Claim 61, wherein the tissue product has a bulk of about 2 cm3 / g or greater.
90. The method of Claim 61, wherein the hydrophobic chemical additive comprises polysiloxanes, mineral oils, aloe vera oil and extracts, tocopherols, and polypropylene glycols.
91. The method of Claim 61, further comprising drying the dewatered layered tissue sheet to form a dried layered tissue sheet.
92. The method of Claim 61, wherein the wherein the selectively treated pulp fibers constitute about 95% or less of the total weight of the tissue sheet.
93. The method of Claim 61, wherein the wherein the first aqueous suspension of pulp fibers may further comprise selectively non-treated pulp fibers.
94. The method of Claim 61, wherein the wherein the first and second aqueous suspensions of pulp fibers are be deposited onto the forming fabric such that a layer of the selectively treated pulp fibers of the first aqueous suspension of pulp fibers is adjacent to a layer of the selectively non-treated pulp fibers of the second aqueous suspension of pulp fibers.
95. A method of making a tissue sheet that comprises a first side, an opposing second side, and selectively treated pulp fibers treated with at least one hydrophobic chemical additive comprising:

(a) forming at least one aqueous suspension of pulp fibers wherein the aqueous suspension of pulp fibers comprises selectively treated pulp fibers treated with a hydrophobic chemical additive and selectively non-treated pulp fibers;

(b) depositing the aqueous suspension of pulp fibers onto a forming fabric to form a wet tissue sheet;

(c) dewatering the wet tissue sheet to form a dewatered tissue sheet;

(d) drying the dewatered tissue sheet to form a dried tissue sheet; and, (e) optionally converting the dried tissue sheet to form a tissue product wherein the tissue sheet comprises a first side, an opposing second side, and the selectively treated pulp fibers such that the selectively treated pulp fibers constitute about 95% or less of the total weight of the tissue sheet.
96. The method of Claim 95, wherein the selectively treated pulp fibers comprise long pulp fibers having a length of about 1.50 mm or greater.
97. The method of Claim 96, wherein the selectively non-treated pulp fibers comprise short pulp fibers having a length of about 1.50 mm or less.
98. The method of Claim 95, wherein the selectively treated pulp fibers have been treated with a polysiloxane have the general structure of:

wherein:

each R1 - R8 moiety comprises independently an organofunctional group or mixtures thereof; and, y is an integer greater than 1.
99. The method of Claim 98, wherein each R1 - R8 comprises independently a C1 or higher of alkyl groups, aryl groups, ethers, polyethers, polyesters, amines, imines, amides, or mixtures thereof.
100. The method of Claim 95, wherein the polysiloxane is an amino functional polysiloxane.
101. The method of Claim 95, wherein the polysiloxane has the general structure:

wherein:

x and y are integers > 0;

the mole ratio of x to (x + y) is from about 0.005 percent to about 25 percent;

each R1 - R9 moiety comprises independently an organofunctional group or mixtures thereof; and, R10 comprises an amino functional moiety or mixtures thereof.
102. The method of Claim 101, wherein each R1 - R9 moiety comprises independently a C1 or higher of alkyl groups, aryl groups, ethers, polyethers, polyesters, amides, or mixtures thereof.
103. The method of Claim 95, wherein the polysiloxane has the general structure of:

wherein:

x and z are integers > 0;

y is an integer >=0;

the mole ratio of x to (x + y + z) is from about 0.05 percent to about 95 percent;

the mole ratio of y to (x+y+z) is from about 0 percent to about 25 percent;

each R0 - R9 comprises independently an organofunctional group or mixtures thereof;

R10 comprises an amino functional moiety or mixtures thereof; and, R11 comprises a hydrophilic functionality or mixtures thereof.
104. The method of Claim 103, wherein each R0 - R9 moiety comprises independently a C1 or higher of alkyl groups, aryl groups, ethers, polyethers, polyesters, amines, imines, amides, substituted amides, or mixtures thereof.
105. The method of Claim 103, wherein R10 comprises an amino functional moiety selected from a primary amine, secondary amine, tertiary amine, quaternary amine, unsubstituted amide, and mixtures thereof.
106. The method of Claim 103, wherein R11 comprises a polyether functional group having the formula: -R12-(R13-O)a-(R14O)b-R15 wherein:

each R12, R13, and R14 comprises independently branched C1-4alkyl groups, linear C1-4 alkyl groups, or mixtures thereof;

R15 comprises H, C1-30 alkyl group, or mixtures thereof; and, a and b are integers of from about 1 to about 100.
107. The method of Claim 95, wherein the side of the tissue sheet having the highest level of polysiloxane is about 3 atomic % Si or greater.
108. The method of Claim 95, wherein the polysiloxane has a viscosity of about centipose or greater.
109. The method of Claim 95, wherein the hydrophobic chemical additive is delivered to the selectively treated pulp fibers as a neat hydrophobic chemical additive or as a neat mixture of hydrophobic chemical additives.
110. The method of Claim 95, wherein the polysiloxane is delivered to the tissue product as selectively treated pulp fibers.
111. The method of Claim 95, wherein the selectively treated pulp fibers comprise short pulp fibers having a length of about 1.00 mm or less.
112. The method of Claim 111, wherein the selectively non-treated pulp fibers comprise long pulp fibers having a length of about 2.00 mm or greater.
113. The method of Claim 95, wherein at least one of the hydrophobic chemical additive has a water solubility of about 3 g / 100 cc or less in deionized water
114. The method of Claim 95, wherein the total weight of the selectively treated pulp fibers relative to the total weight of the pulp fibers of the tissue sheet comprising the selectively treated pulp fibers and the selectively non-treated pulp fibers ranges from about 0.5% to about 90% on a dry fiber basis.
115. The method of Claim 95, wherein the amount of the hydrophobic chemical additive on the selectively treated pulp fibers ranges from about 0.01 % to about 10%
by weight of the dry selectively treated pulp fibers.
116. The method of Claim 95, wherein the amount of the hydrophobic chemical additive within the tissue sheet comprising the selectively treated pulp fibers ranges from about 0.01 % to about 5% by weight of the total dry fiber weight of the tissue sheet.
117. The method of Claim 95, wherein the tissue product has a bulk of about 2 cm3 / g or greater.
118. The method of Claim 95, wherein the hydrophobic chemical additive comprises polysiloxanes, mineral oils, aloe vera oil and extracts, tocopherols, and polypropylene glycols.
119. The method of Claim 95, wherein a tissue product comprises the tissue sheet.
120. The method of Claim 119, wherein the tissue product is a single ply tissue product.
121. The method of Claim 119, wherein the tissue product is a multi-ply tissue product comprising at least two plies.
CA2503739A 2002-11-06 2003-10-22 Soft tissue products containing selectively treated fibers Expired - Fee Related CA2503739C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US10/289,835 2002-11-06
US10/289,835 US6964725B2 (en) 2002-11-06 2002-11-06 Soft tissue products containing selectively treated fibers
PCT/US2003/033633 WO2004044318A2 (en) 2002-11-06 2003-10-22 Soft tissue products containing selectively treated fibers

Publications (2)

Publication Number Publication Date
CA2503739A1 true CA2503739A1 (en) 2004-05-27
CA2503739C CA2503739C (en) 2012-07-31

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CA2503739A Expired - Fee Related CA2503739C (en) 2002-11-06 2003-10-22 Soft tissue products containing selectively treated fibers

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US (1) US6964725B2 (en)
EP (1) EP1558810B2 (en)
AU (1) AU2003286628B2 (en)
CA (1) CA2503739C (en)
DE (1) DE60336412D1 (en)
MX (1) MXPA05004175A (en)
TW (1) TW200422490A (en)
WO (1) WO2004044318A2 (en)

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EP1558810B2 (en) 2019-09-18
WO2004044318A3 (en) 2004-09-16
MXPA05004175A (en) 2005-06-08
CA2503739C (en) 2012-07-31
AU2003286628B2 (en) 2008-04-10
EP1558810A2 (en) 2005-08-03
DE60336412D1 (en) 2011-04-28
EP1558810B1 (en) 2011-03-16
US20040084165A1 (en) 2004-05-06
WO2004044318A2 (en) 2004-05-27
US6964725B2 (en) 2005-11-15

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