Ultra premium bath tissue
First Claim
Patent Images
1. A method of ply bonding a multi-ply tissue product, comprising:
- providing a first cellulosic tissue web;
providing a second cellulosic tissue web;
at least one of said cellulosic webs being bearing a plurality of marks in a pattern, said marks being chosen from the group consisting of;
an embossed pattern;
wire marks from a drying fabric;
wire marks from an imprinting fabric;
wire marks from a forming fabric;
creping fabric marks from a creping fabric;
printed designs and watermarks;
forming a ply bonded roll by combining said cellulosic tissue webs in a nip comprised of a plurality of knurled ply-bonding wheels bearing against an anvil roll, each said knurled ply-bonding wheel having a cylindrical face bearing a plurality of spicules arrayed in a meandering path thereupon, pressing said knurled ply-bonding wheels against said anvil with sufficient pressure to adhere the plies to each other in the regions between the spicules and the anvil roll.
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0 Petitions
Accused Products
Abstract
Visibility of ply-bonding created by glassining spot embossing on decorative pattern embossed tissue products is provided by obscuring the glassined spot embosses by distributing them along a meandering path through the decorative pattern, obscuring the edges of the glassined spot embosses by providing a gradual transition therefrom and combinations of the two techniques.
148 Citations
153 Claims
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1. A method of ply bonding a multi-ply tissue product, comprising:
- providing a first cellulosic tissue web;
providing a second cellulosic tissue web;
at least one of said cellulosic webs being bearing a plurality of marks in a pattern, said marks being chosen from the group consisting of;
an embossed pattern;
wire marks from a drying fabric;
wire marks from an imprinting fabric;
wire marks from a forming fabric;
creping fabric marks from a creping fabric;
printed designs and watermarks;
forming a ply bonded roll by combining said cellulosic tissue webs in a nip comprised of a plurality of knurled ply-bonding wheels bearing against an anvil roll, each said knurled ply-bonding wheel having a cylindrical face bearing a plurality of spicules arrayed in a meandering path thereupon, pressing said knurled ply-bonding wheels against said anvil with sufficient pressure to adhere the plies to each other in the regions between the spicules and the anvil roll.
- providing a first cellulosic tissue web;
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2. A multi-ply cellulosic tissue comprising:
- an outer ply bearing a pattern of marks chosen from the group consisting of;
an embossed pattern;
wire marks from a drying fabric;
wire marks from an imprinting fabric;
wire marks from a forming fabric;
creping fabric marks from a creping fabric;
printed designs and watermarks;
in a first pattern and an inner ply joined to said outer ply by a plurality of spot embosses arrayed in a meandering path interspersed amongst said first pattern. - View Dependent Claims (3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
- an outer ply bearing a pattern of marks chosen from the group consisting of;
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17. A method of manufacturing a knurled ply-bonding wheel having spicules arranged on a sinuous path around the periphery thereof, comprising:
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a) providing a generally cylindrical metallic blank having a radius and a thickness; b) forming a plurality of ridges around the periphery of the generally cylindrical metallic blank; c) removing portions of the peripheral surface of the generally cylindrical metallic blank, leaving spicules arranged on a sinuous path around the periphery thereof. - View Dependent Claims (18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30)
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31. A knurled ply-bonding wheel having spicules arrayed on a sinuous path around the periphery thereof, comprising:
- a generally cylindrical metallic body;
a substantially continuous radially extending ribbon of metal projecting therefrom having a plurality of ridges of substantially uniform radial extent defined therein on a sinuous path around the periphery of said generally cylindrical metallic body. - View Dependent Claims (32, 33, 34, 35, 36, 37, 38, 39, 40)
- a generally cylindrical metallic body;
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41. A multi-ply tissue product comprising at least one ply bearing a pattern of marks chosen from the group consisting of:
- an embossed pattern;
wire marks from a drying fabric;
wire marks from an imprinting fabric;
wire marks from a forming fabric;
creping fabric marks from a creping fabric;
printed designs and watermarks; and
at least one other ply, said one ply being joined to said other ply by glassined spot embosses arranged on a meandering path interspersed with and obscured by marks on said one ply. - View Dependent Claims (42, 43, 44, 45, 46, 47, 48, 49)
- an embossed pattern;
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50. A 3-ply sheet of cellulosic bath tissue bearing a plurality of billowy embosses comprising:
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a) an upper embossed ply bearing a plurality of groups of large emboss elements interspersed among regions comprising fields of smaller emboss elements; b) an intermediate ply displaced therefrom and bearing a substantially similar emboss pattern to said upper ply, such that the groups of large emboss elements of said emboss patterns only partially overlap; and c) a generally planar backing ply joined thereto, said three ply sheet of cellulosic bath tissue exhibiting; i) a basis weight of at least about 25 pounds per 3000 sq ft ream; ii) an opacity of at least about 72; iii) a caliper of at least about 4.2 mils per eight sheets per pound of basis weight; iv) a geometric mean of the deviation in the coefficient of friction of no more than about 0.6; and v) a geometric mean modulus of less than about 60. - View Dependent Claims (51, 52, 53, 54, 55, 56, 57, 58, 59, 60)
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61. A 3-ply sheet of cellulosic bath tissue bearing a plurality of billowy embosses comprising:
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a) an upper embossed ply bearing a plurality of groups of large emboss elements in fields of smaller emboss elements; b) an intermediate ply bearing a substantially similar emboss pattern to said upper ply and displaced therefrom, such that the groups of large emboss elements of said emboss patterns only partially overlap; and c) a generally planar backing ply joined thereto, said three ply sheet of cellulosic bath tissue exhibiting; i) a basis weight of at least about 25 pounds per 3000 sq ft ream; ii) an opacity of at least about 72; iii) a caliper of at least about 4 mils per eight sheets per pound of basis weight; iv) a geometric mean of the deviation in the coefficient of friction of no more than about 0.6; and v) a geometric mean modulus of less than about 60. - View Dependent Claims (62, 63, 64, 65, 66, 67, 68, 69, 70, 71)
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72. A multi-ply sheet of cellulosic bath tissue bearing a plurality of billowy embosses comprising:
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a) an upper embossed ply bearing a plurality of groups of large emboss elements in a field of micro emboss elements; b) an intermediate ply adjacent said upper ply bearing a substantially similar emboss pattern to said upper ply displaced therefrom, such that the groups of large emboss elements of said emboss patterns only partially overlap; and c) a generally planar backing ply joined thereto, said multi-ply sheet of cellulosic bath tissue exhibiting; i) a basis weight of at least about 25 pounds per 3000 sq ft ream; ii) an opacity of at least about 72; iii) a caliper of at least about 3 mils per eight sheets per pound of basis weight; iv) a geometric mean of the deviation in the coefficient of friction of no more than about 0.7; and v) a geometric mean modulus of less than about 60.
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73. A multi-ply sheet of cellulosic bath tissue bearing a plurality of billowy embosses comprising:
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a) an upper embossed ply bearing a plurality of groups of large emboss elements; b) an intermediate ply adjacent said upper ply bearing a substantially similar emboss pattern to said upper ply displaced therefrom, such that the groups of large emboss elements of said emboss patterns only partially overlap; and c) a generally planar backing ply joined thereto, said multi-ply sheet of cellulosic bath tissue exhibiting; i) a basis weight of at least about 25 pounds per 3000 sq ft ream; ii) an opacity of at least about 70; iii) a caliper of at least about 4 mils per eight sheets per pound of basis weight; iv) a geometric mean of the deviation in the coefficient of friction of no more than about 0.7; and v) a geometric mean modulus of less than about 60.
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74. A multi-ply sheet of cellulosic bath tissue bearing a plurality of billowy embosses comprising:
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a) an upper embossed ply bearing a plurality of groups of large emboss elements; b) an intermediate ply adjacent said upper ply bearing a substantially similar emboss pattern to said upper ply, displaced therefrom, such that the groups of large emboss elements of said emboss patterns only partially overlap; and c) a backing ply joined thereto, said multi-ply sheet of cellulosic bath tissue exhibiting; i) a basis weight of at least about 25 pounds per 3000 sq ft ream; ii) an opacity of at least about 70; iii) a caliper of at least about 4 mils per eight sheets per pound of basis weight; iv) a geometric mean of the deviation in the coefficient of friction of no more than about 0.7; and v) a geometric mean modulus of less than about 60; and vi) a TMI sidedness of less than about 0.6.
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75. A multi-ply sheet of bath tissue,
a) comprising at least three plies of tissue, b) at least two of said plies bearing an emboss pattern imparted in the same embossing nip comprising: -
i) an array of cells generated by an intersecting lattice, the generators of said lattice each being defined by a sinuous linear array of spot embosses; ii) a plurality of said cells being filled with a group of large curvilinear emboss elements, said group having lateral and longitudinal dimensions between about 25% up to about 85% of the corresponding longitudinal and lateral dimensions of said cells; and iii) an array of microembosses inside said cells defining a field around said group of large embosses, the depth of the microembosses being no more than about 85% of the depth of the elements in the group of large curvilinear emboss elements; at least one of said plies bearing an emboss pattern imparted in the same embossing nip being an interior ply of said multi-ply sheet of tissue, c) a third ply of tissue, being an exterior ply of said sheet of multi-ply tissue, exhibiting a substantial absence of emboss elements projecting from the plane thereof in the direction exterior to said multi-ply tissue; i) the fibers in an interior ply of said multi-ply sheet of bath tissue having an average coarseness to length ratio, C/Lz, exceeding the average coarseness to length ratio of the fibers in at least one exterior ply of said multi-ply bath tissue by at least about 0.2. - View Dependent Claims (76, 77, 78, 79, 80, 81, 82, 83)
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84. A roll of 3-ply sheets of cellulosic bath tissue having 3 plies of tissue joined together and having an exterior tail, comprising:
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a) an upper-ply bearing a pattern of marks chosen from the group consisting of;
an embossed pattern;
wire marks from a drying fabric;
wire marks from an imprinting fabric;
wire marks from a forming fabric;
fabric creping marks from a creping fabric;
printed designs and watermarks;b) an intermediate ply mechanically joined to said upper embossed ply by a plurality of entanglement/glassining regions coincident with at least some of said marks in said pattern; and c) a generally planar backing ply mechanically joined to said intermediate ply by said plurality of entanglement/glassining regions extending over less than about 1% of the area of said sheet, d) the exterior tail of said roll being folded and adhesively bonded to itself at a first location and to the underlying layer in said roll at a second location, the distance between the first location and the second location being less than the length of tissue in said tail between said first and second locations. - View Dependent Claims (85, 86, 87)
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88. A three-ply sheet of cellulosic bath tissue bearing a plurality of embosses comprising:
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a) an upper embossed ply bearing a pattern comprising a plurality spot marks in a first pattern chosen from the group consisting of;
an embossed pattern;
wire marks from a drying fabric;
wire marks from an imprinting fabric;
wire marks from a forming fabric;
fabric creping marks from a creping fabric;
printed designs and watermarks;b) an intermediate ply, and c) a backing ply joined thereto, d) said intermediate ply and said backing ply being joined to said upper embossed ply by a plurality of spot embosses arrayed in a meandering path interspersed amongst said first pattern. - View Dependent Claims (89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102)
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103. A 3-ply sheet of cellulosic bath tissue bearing a plurality of billowy embosses comprising:
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a) an upper embossed ply bearing a plurality of groups of large emboss elements interspersed among regions comprising fields of smaller emboss elements; b) an intermediate ply displaced therefrom and bearing a substantially similar emboss pattern to said upper ply, such that the groups of large emboss elements of said emboss patterns only partially overlap, the groups of large emboss elements on said intermediate ply are longitudinally displaced from the groups of large emboss elements on said other embossed ply by a distance of at least about 10% but no more than about three fourths the length of said groups of large emboss elements; and c) a generally planar backing ply joined thereto.
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104. A 3-ply sheet of cellulosic bath tissue bearing a plurality of billowy embosses comprising:
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a) an upper embossed ply bearing a plurality of groups of large emboss elements interspersed among regions comprising fields of smaller emboss elements; b) an intermediate ply displaced therefrom and bearing a substantially similar emboss pattern to said upper ply, such that the groups of large emboss elements of said emboss patterns only partially overlap, the groups of large emboss elements on said intermediate ply are longitudinally displaced from the groups of large emboss elements on said other embossed ply by a distance of at least about 10% but no more than about three fourths the length of said groups of large emboss elements; and c) a backing ply joined thereto, a plurality of any bosses on said backing ply projecting inwardly.
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105. A method of ply bonding a multi-ply tissue product, comprising:
- providing a first cellulosic tissue web;
providing a second cellulosic tissue web;
at least one of said cellulosic webs being bearing a pattern of marks chosen from the group consisting of;
an embossed pattern;
wire marks from a drying fabric;
wire marks from an imprinting fabric;
wire marks from a forming fabric;
creping fabric marks from a creping fabric;
printed designs and watermarks;
forming a rewound roll by combining said cellulosic tissue webs in a nip comprised of a plurality of knurled ply-bonding wheels bearing against an anvil roll, each said knurled ply-bonding wheel having a cylindrical face bearing a plurality of glassining elements arranged in a path thereupon, said glassining elements having a central peak and adjacent shoulders, the height of each shoulder declining from the height of the peak by no more than half the distance from the peak over a length of at least about 0.04″
. - View Dependent Claims (106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 118, 119)
- providing a first cellulosic tissue web;
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120. A multi-ply cellulosic tissue comprising:
- an outer ply bearing a pattern of marks chosen from the group consisting of;
an embossed pattern;
wire marks from a drying fabric;
wire marks from an imprinting fabric;
wire marks from a forming fabric;
creping fabric marks from a creping fabric;
printed designs and watermarks;
in a first pattern and an inner ply joined to said outer ply by a plurality of spot embosses arrayed on a path interspersed amongst said first pattern, said spot embosses comprising an elongated central region and a pair of shoulders extending away from said elongated central region generally in the cross direction and extending upwardly toward the surface of said multi-ply cellulosic tissue at an angle of less than 30°
. - View Dependent Claims (121, 122, 123, 124, 125, 126, 127, 128, 129, 130, 131, 132)
- an outer ply bearing a pattern of marks chosen from the group consisting of;
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133. A multi-ply tissue product comprising at least one ply bearing a pattern of marks chosen from the group consisting of:
- an embossed pattern;
wire marks from a drying fabric;
wire marks from an imprinting fabric;
wire marks from a forming fabric;
creping fabric marks from a creping fabric;
printed designs and watermarks; and
at least one other ply, said one ply being joined to said other ply by glassined spot embosses arranged on a meandering path interspersed with and obscured by marks on said one ply, each said glassined spot emboss being elongate in shape with the long dimension thereof being between 0.02″ and
0.1″
, the width thereof being between 0.002 and 0.015″
, with the long dimension of said peak being at an angle of between 20° and
40°
from the machine direction and two of said shoulders adjoining the narrows of said elongate region and extending generally in the cross-machine direction decline from the height of said peak at angles less than 20°
over a length of at least about 0.08″
while two of said shoulders adjoining the length of said elongate region and extending generally in the machine direction between peaks decline at angles of greater than 20°
, forming valleys between said peaks, the width of each said valley being between about 0.05″ and
0.25″
. - View Dependent Claims (134, 135, 136, 137, 138, 139, 140, 141)
- an embossed pattern;
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142. A method of ply bonding a multi-ply tissue product, comprising:
- providing a first cellulosic tissue web;
providing a second cellulosic tissue web;
at least one of said cellulosic webs being bearing a plurality of marks in a pattern, said marks being chosen from the group consisting of;
an embossed pattern;
wire marks from a drying fabric;
wire marks from an imprinting fabric;
wire marks from a forming fabric;
creping fabric marks from a creping fabric;
printed designs and watermarks;
forming a ply bonded roll by combining said cellulosic tissue webs in a nip comprised of a plurality of knurled ply-bonding wheels bearing against an anvil roll, each said knurled ply-bonding wheel having a cylindrical face bearing a plurality of spicules arrayed thereupon in a pattern, pressing said knurled ply-bonding wheels against said anvil with sufficient pressure to adhere the plies to each other in the regions between the spicules and the anvil roll.
- providing a first cellulosic tissue web;
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143. A method of ply bonding a multi-ply tissue product, comprising:
- providing a first cellulosic tissue web;
providing a second cellulosic tissue web;
at least one of said cellulosic webs being bearing a plurality of marks, said marks being chosen from the group consisting of;
an embossed pattern;
wire marks from a drying fabric;
wire marks from an imprinting fabric;
wire marks from a forming fabric;
creping fabric marks from a creping fabric;
printed designs and watermarks;
forming a ply bonded roll by combining said cellulosic tissue webs in a nip comprised of a plurality of knurled ply-bonding wheels bearing against an anvil roll, each said knurled ply-bonding wheel having a face bearing a plurality of spicules arrayed in a meandering path thereupon, pressing said knurled ply-bonding wheels against said anvil with sufficient pressure to adhere the plies to each other in the regions between the spicules and the anvil roll, the area in which said plies adhere to each other being less than 1%, 0.1% or 0.05% of the area of the tissue.
- providing a first cellulosic tissue web;
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144. A multi-ply cellulosic tissue comprising:
- an outer ply bearing a pattern of marks chosen from the group consisting of;
an embossed pattern;
wire marks from a drying fabric;
wire marks from an imprinting fabric;
wire marks from a forming fabric;
creping fabric marks from a creping fabric;
printed designs and watermarks;
in a first pattern and an inner ply joined to said outer ply by a plurality of spot embosses arrayed in a meandering path interspersed amongst said first pattern the area in which said plies are joined to each other being less than 1%, 0.1% or 0.05% of the area of the tissue. - View Dependent Claims (145, 146, 147, 148, 149, 150, 151, 152, 153)
- an outer ply bearing a pattern of marks chosen from the group consisting of;
Specification