US4100017A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multi-ply tissue product
Assignee: Procter and Gamble Co
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Filing: 1976-09-20
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Granted: 1978-07-11
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Expires: 1996-09-20
Abstract
Abstract Sanitary tissue products which are laminates formed from two dissimilar paper webs. When a web of low density, high bulk process paper is united with a web of conventional paper, a product possessing absorbency softness, flexibility, and bulk properties similar to those of a product comprising two webs of the low density, high bulk process paper is produced. Variations taught by the invention include the use of two paper webs having different creping characteristics to form the laminated sanitary tissue. The teachings of the invention can be extended to other products such as paper towels.
Inventors
- 👤 Thomas Joseph Flautt, Jr.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 02:30
CPC Classifications
B; B32; B32B; B32B7/00; B32B7/02; B32B29/00; B32B29/002; B32B29/005; A; A47; A47K; A47K10/00; A47K10/16; B31; B31F; B31F1/00; B31F1/07; B31F1/12; B31F1/122; B31F1/124; B32B29/06; D; D21; D21H; D21H27/00; D21H27/30; D21H27/40; B31F2201/00; B31F2201/07; B31F2201/0756; B32B2250/00; B32B2250/26; B32B2307/00; B32B2307/70; B32B2307/72; B32B2555/00; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24355; Y10T428/24446; Y10T428/24455; Y10T428/24463
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
133 words
A soft, absorbent paper product comprising at least two webs of paper, at least two of which webs are dissimilar, wherein at least one of said dissimilar webs is produced by a conventional papermaking process and has a random crepe pattern and a density of from 0.150 to 0.240 gm/cc and wherein at least one of said dissimilar webs is produced by a high bulk papermaking process and has a regularly repeating crepe pattern and a density of from about 0.070 to about 0.140 gm/cc; said paper product having a bending modulus substantially lower than the average of the bending moduli of a multi-ply paper product made entirely from paper produced by said conventional papermaking process and of a multi-ply paper product made entirely from paper produced by said high bulk papermaking process.
Claim 2
Dependent Claim
133 words
A soft, absorbent paper product comprising at least two webs of paper, at least two of which webs are dissimilar, wherein at least one of said dissimilar webs is produced by a conventional papermaking process and has a random crepe pattern and a density of from 0.150 to 0.240 gm/cc and wherein at least one of said dissimilar webs is produced by a high bulk papermaking process and has a regularly repeating crepe pattern and a density of from about 0.070 to about 0.140 gm/cc; said paper product having a bending modulus substantially lower than the average of the bending moduli of a multi-ply paper product made entirely from paper produced by said conventional papermaking process and of a multi-ply paper product made entirely from paper produced by said high bulk papermaking process.
Claim 3
Dependent Claim
73 words
The product of claim 1 wherein said high bulk papermaking process includes the steps of thermally predrying a substantially uncompacted moist web of papermaking fibers carried on an imprinting fabric to a consistency of from about 30 percent to about 98 percent, imprinting the knuckle pattern of said imprinting fabric into the thermally predried web during transfer to a creping drum, and creping the imprinted web from the surface of the creping drum.
Claim 4
Dependent Claim
134 words
A soft, absorbent paper product comprising at least two webs of paper, at least two of which webs are dissimilar, wherein at least one of said dissimilar webs is produced by a conventional papermaking process and has a random crepe pattern and a density of from about 0.170 to about 0.190 gm/cc and wherein at least one of said dissimilar webs is produced by a high bulk papermaking process and has a regularly repeating crepe pattern and a density from about 0.096 to about 0.124 gm/cc; said paper product having a bending modulus substantially lower than the average of the bending moduli of a multi-ply paper product made entirely from paper produced by said conventional papermaking process and of a multi-ply paper product made entirely from paper produced by said high bulk papermaking process.
Claim 5
Dependent Claim
134 words
A soft, absorbent paper product comprising at least two webs of paper, at least two of which webs are dissimilar, wherein at least one of said dissimilar webs is produced by a conventional papermaking process and has a random crepe pattern and a density of from about 0.170 to about 0.190 gm/cc and wherein at least one of said dissimilar webs is produced by a high bulk papermaking process and has a regularly repeating crepe pattern and a density from about 0.096 to about 0.124 gm/cc; said paper product having a bending modulus substantially lower than the average of the bending moduli of a multi-ply paper product made entirely from paper produced by said conventional papermaking process and of a multi-ply paper product made entirely from paper produced by said high bulk papermaking process.
Claim 6
Dependent Claim
73 words
The product of claim 3 wherein said high bulk papermaking process includes the steps of thermally predrying a substantially uncompacted moist web of papermaking fibers carried on an imprinting fabric to a consistency of from about 30 percent to about 98 percent, imprinting the knuckle pattern of said imprinting fabric into the thermally predried web during transfer to a creping drum, and creping the imprinted web from the surface of the creping drum.
Claim 7
Dependent Claim
100 words
A soft, absorbent paper product comprising a first web and a second web, wherein said first web has a random crepe pattern and a density of from about 0.150 to about 0.240 gm/cc and said second web has a regularly repeating crepe pattern and a density of from about 0.070 to about 0.140 gm/cc; said paper product having a bending modulus substantially lower than the average bending moduli of a two ply paper product made entirely from paper produced by a conventional papermaking process and a two-ply paper product made entirely from paper produced by a high bulk papermaking process.
Claim 8
Dependent Claim
100 words
A soft, absorbent paper product comprising a first web and a second web, wherein said first web has a random crepe pattern and a density of from about 0.150 to about 0.240 gm/cc and said second web has a regularly repeating crepe pattern and a density of from about 0.070 to about 0.140 gm/cc; said paper product having a bending modulus substantially lower than the average bending moduli of a two ply paper product made entirely from paper produced by a conventional papermaking process and a two-ply paper product made entirely from paper produced by a high bulk papermaking process.
Claim 9
Dependent Claim
77 words
The product of claim 5 wherein said second web is produced by a process which includes the steps of thermally predrying a substantially uncompacted moist web of papermaking fibers carried on an imprinting fabric to a consistency of from about 30 percent to about 98 percent, imprinting the knuckle pattern of said imprinting fabric into the thermally predried web during transfer to a creping drum, and creping the imprinted web from the surface of the creping drum.
Claim 10
Dependent Claim
30 words
The paper product according to claim 5, wherein said first web is produced by a conventional papermaking process and said second web is produced by a high bulk papermaking process.
Claim 11
Dependent Claim
37 words
The paper product according to claim 7 wherein said first web has a density of from about 0.170 to about 0.190 gm/cc and said second web has a density of from about 0.096 to about 0.124 gm/cc.
Claim 12
Dependent Claim
75 words
The paper product according to claim 7 wherein said high bulk papermaking process includes the steps of thermally predrying a substantially uncompacted moist web of papermaking fibers carried on an imprinting fabric to a consistency of from about 30 percent to about 98 percent, imprinting the knuckle pattern of said imprinting fabric into the thermally predried web during transfer to a creping drum and creping the imprinted web from the surface of the creping drum.
Claim 13
Dependent Claim
102 words
A soft, absorbent paper product comprising a first web and a second web wherein said first web has a random crepe pattern and a density of from about 0.170 to about 0.190 gm/cc and said second web has a regularly repeating crepe pattern and a density of from about 0.096 to about 0.124 gm/cc; said paper product having a bending modulus substantially lower than the average of the bending moduli of a two-ply paper product made entirely from paper produced by a conventional papermaking process and of a two-ply paper product made entirely from paper produced by a high bulk papermaking process.
Claim 14
Dependent Claim
102 words
A soft, absorbent paper product comprising a first web and a second web wherein said first web has a random crepe pattern and a density of from about 0.170 to about 0.190 gm/cc and said second web has a regularly repeating crepe pattern and a density of from about 0.096 to about 0.124 gm/cc; said paper product having a bending modulus substantially lower than the average of the bending moduli of a two-ply paper product made entirely from paper produced by a conventional papermaking process and of a two-ply paper product made entirely from paper produced by a high bulk papermaking process.
Claim 15
Dependent Claim
77 words
The product of claim 10 wherein said second web is produced by a process which includes the steps of thermally predrying a substantially uncompacted moist web of papermaking fibers carried on an imprinting fabric to a consistency of from about 30 percent to about 98 percent, imprinting the knuckle pattern of said imprinting fabric into the thermally predried web during transfer to a creping drum, and creping the imprinted web from the surface of the creping drum.
Claim 16
Dependent Claim
133 words
A soft absorbent paper product comprising three webs of paper, at least two of which webs are dissimilar, wherein at least one of said dissimilar webs is produced by a conventional papermaking process and has a random crepe pattern and a density of from about 0.150 to about 0.240 gm/cc and wherein at least one of said dissimilar webs is produced by a high bulk papermaking process and has a regularly repeating crepe pattern and a density of from about 0.070 to about 0.140 gm/cc; said paper product having a bending modulus substantially lower than the average of the bending moduli of a multi-ply paper product made entirely from paper produced by said conventional papermaking process and of a multi-ply paper product made entirely from paper produced by said high bulk papermaking process.
Claim 17
Dependent Claim
133 words
A soft absorbent paper product comprising three webs of paper, at least two of which webs are dissimilar, wherein at least one of said dissimilar webs is produced by a conventional papermaking process and has a random crepe pattern and a density of from about 0.150 to about 0.240 gm/cc and wherein at least one of said dissimilar webs is produced by a high bulk papermaking process and has a regularly repeating crepe pattern and a density of from about 0.070 to about 0.140 gm/cc; said paper product having a bending modulus substantially lower than the average of the bending moduli of a multi-ply paper product made entirely from paper produced by said conventional papermaking process and of a multi-ply paper product made entirely from paper produced by said high bulk papermaking process.
Claim 18
Dependent Claim
48 words
The paper product of claim 12 wherein said web produced by said conventional papermaking process has a density of from about 0.170 to about 0.190 gm/cc and said web produced by by said high bulk papermaking process has a density of from about 0.096 to about 0.124 gm/cc.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-07-10 | 1982-01-09 | 1982-07-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-07-10 | 1986-01-09 | 1986-07-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-07-10 | 1990-01-09 | 1990-07-11 | $7700.00 | Window Closed / Lapsed |