Claims
- 1. A process for the manufacture of a hydrophilic, humectant, soft, pliant single-ply or multi-ply absorbent paper which process comprises:providing a moving foraminous support, providing a headbox; forming a nascent web by depositing furnish upon said foraminous support;providing partly through air drying means operatively connected to said moving foraminous support to receive said nascent web and for dewatering of said nascent web and partly through air drying the wet web and providing a Yankee dryer operatively connected to said air drying means and adapted to receive and dry the partially dried nascent web; supplying a furnish to said headbox comprising: cellulosic papermaking fiber consisting essentially of recycle fiber, hardwood fiber, softwood fiber, and mixtures thereof, and up to 50% synthetic fiber and adding a softener having a melting point of about 0 to 40° C. wherein the softener comprises an imidazoline moiety formulated with organic compounds having a weight average molecular weight of about 60 to 1500 selected from the group consisting of alkoxylated aliphatic polyols, alkoxylated aliphatic diols, aliphatic polyols, aliphatic diols and a mixture of these wherein the amount of softener added is about 1 to 10 pounds per ton of furnish but, within these parameters the addition of the softener is controlled to achieve a ratio of average particle size of dispersed softener to average fiber diameter in the range of about 0.01 to 15 percent; forming a nascent web by depositing said furnish on said moving foraminous support adding an organic permanent wet strength agent or a temporary wet strength agent, the amount of wet strength agent added per ton of furnish is about 1 to 30 pounds, provided that the wet strength agent having no charge is sprayed during or after drying while the wet strength agent having a charge is added during the wet end paper making process; partially through air drying the web; transferring said nascent web to said Yankee dryer, adhering said web to said Yankee dryer, creping said web from said Yankee dryer; recovering a creped, dried absorbent paper product.
- 2. A process for the manufacture of a hydrophilic, humectant, soft, pliant single-ply or multi-ply absorbent napkin which process comprises:providing a moving foraminous support, providing a headbox; forming a nascent web by depositing furnish upon said foraminous support;providing partly through air drying means operatively connected to said moving foraminous support to receive said nascent web and for dewatering of said nascent web and partly through air drying the wet web and providing a Yankee dryer operatively connected to said wet pressing means and said air drying means and adapted to receive and dry the partially dried nascent web; supplying a furnish to said headbox comprising: cellulosic papermaking fiber consisting essentially of recycle fiber, hardwood fiber, softwood fiber, and mixtures thereof, and up to 50% synthetic fiber, and adding a softener having a melting range of 0-40° C. wherein the softener comprises an imidazoline moiety formulated with organic compounds having a weight average molecular weight of about 60 to 1500 selected from the group consisting of alkoxylated aliphatic polyols, alkoxylated aliphatic diols, aliphatic polyols, aliphatic diols and a mixture of these wherein the amount of softener added is about 1 to 10 pounds per ton of furnish but within these parameters the addition of the softener is controlled to achieve a ratio of average particle size of dispersed softener to average fiber diameter in the range of about 0.01 to about 15 percent; forming a nascent web by depositing said furnish on said moving foraminous support adding an organic permanent wet strength agent or a temporary wet strength agent, the amount of wet strength agent added per ton of furnish is about 1 to 20 pounds, provided that the wet strength agent having no charge is sprayed during or after drying while the wet strength agent having a charge is added during the wet end paper making process; partially through air drying the web; transferring said nascent web to said Yankee dryer, adhering said web to said Yankee dryer, creping said web from said Yankee dryer; recovering a creped, dried absorbent napkin having a serpentine configuration.
- 3. A process for the manufacture of a hydrophilic, humectant, soft, pliant single ply or multi ply absorbent bathroom tissue which process comprises:providing a moving foraminous support, providing a headbox; forming a nascent web by depositing furnish upon said foraminous support;providing partially through air drying means operatively connected to said moving foraminous support to receive said nascent web and for dewatering of said nascent web and partly through air drying the wet web and providing a Yankee dryer operatively connected to said wet pressing means and said air drying means and adapted to receive and dry the partially dried nascent web; supplying a furnish to said headbox comprising: cellulosic papermaking fiber consisting essentially of recycle fiber, hardwood fiber, softwood fiber, and mixtures thereof, and up to 50% synthetic fiber, and adding a softener having a melting range of about 0°-40° C. wherein the softener comprises an imidazoline moiety formulated with organic compounds having a weight average molecular weight of about 60 to 1500 selected from the group consisting of alkoxylated aliphatic polyols, alkoxylated aliphatic diols, aliphatic polyols, aliphatic diols and a mixture of these wherein the amount of softener added is about 1 to 10 pounds per ton of furnish but within these parameters the addition of the softener is controlled to achieve a ratio of average particle size of dispersed softener to average fiber diameter in the range of about 0.01 to 15 percent; forming a nascent web by depositing said furnish on said moving foraminous support adding an organic permanent or temporary wet strength agent, the amount of wet strength agent added per ton of furnish is about 1 to 20 pounds, provided that the wet strength agent having a charge is added during the wet end paper making process while the wet strength agent having no charge is sprayed on the Yankee after creping or just before creping; partially through air drying the web; transferring said nascent web to said Yankee dryer, adhering said web to said Yankee dryer, creping said web from said Yankee dryer; recovering a creped, dried absorbent bathroom tissue having a serpentine configuration.
- 4. A process for the manufacture of a hydrophilic, humectant, soft, pliant single ply or multi ply absorbent paper which process comprises:providing a moving foraminous support, providing a headbox; forming a nascent web by depositing furnish upon said foraminous support;providing wet pressing means operatively connected to said moving foraminous support to receive said nascent web and for dewatering of said nascent web; providing a Yankee dryer operatively connected to said wet pressing means adapted to receive and dry the partially dry nascent web; supplying a furnish to said headbox comprising: cellulosic papermaking fiber consisting essentially of recycle fiber, hardwood fiber, softwood fiber, and mixtures thereof, and up to 50% synthetic fiber and adding a softener having a melting range of about 0-40° C. wherein the softener comprises an imidazoline moiety formulated with organic compounds having a weight average molecular weight of about 60 to 1500 selected from the group consisting of alkoxylated aliphatic diols, aliphatic diols, aliphatic polyols, alkoxylated aliphatic polyols, and a mixture of these compounds wherein the amount of softener added is about 1 to 10 pounds per ton of furnish but within these parameters the addition of the softener is controlled to achieve a ratio of average particle size of dispersed softener to average fiber diameter in the range of about 0.01 to 15 percent; forming a nascent web by depositing said furnish on said moving foraminous support adding an organic permanent or temporary wet strength agent, the amount of wet strength agent added per ton of furnish is about 1 to 30 pounds, provided that the wet strength agent having no charge is sprayed during or after drying while the wet strength agent having a charge is added during the wet end paper making process; wet pressing said nascent web; transferring said nascent web to said Yankee dryer, adhering said web to said Yankee dryer, creping said web from said Yankee dryer; recovering a creped, dried absorbent paper product.
- 5. A process for the manufacture of a hydrophilic, humectant, soft, pliant single ply or multi ply bathroom tissue which process comprises:providing a moving foraminous support, providing a headbox; forming a nascent web by depositing furnish upon said foraminous support;providing wet pressing means operatively connected to said moving foraminous support to receive said nascent web and for dewatering of said nascent web by overall compaction thereof; and providing a Yankee dryer operatively connected to said wet pressing means to receive said nascent web and for drying said web; supplying a furnish to said headbox comprising: cellulosic papermaking fiber consisting essentially of recycle fiber, hardwood fiber, softwood fiber, and mixtures thereof, and up to 50% synthetic fiber and adding a softener having a melting range of about 0-40° C. wherein the softener comprises an imidazoline moiety formulated with organic compounds having a weight average molecular weight of about 60 to 1500 selected from the group consisting of alkoxylated aliphatic polyols, alkoxylated aliphatic diols, aliphatic polyols, aliphatic diols and a mixture of these wherein the amount of softener added is about 1 to 10-pounds per ton of furnish but within these parameters the addition of the softener is controlled to achieve a ratio of average particle size of dispersed softener to average fiber diameter in the range of about 0.01 to 15 percent, forming a nascent web by depositing said furnish on said moving foraminous support adding an organic permanent or temporary wet strength agent, the amount of wet strength agent added per ton of furnish is about 1 to 20 pounds, provided that the wet strength agent having no charge is sprayed during or after drying while the wet strength agent having a charge is added during the wet end paper making process; wet pressing said nascent web; transferring said nascent web to said Yankee dryer, adhering said web to said Yankee dryer, creping said web from said Yankee dryer; recovering a creped, dried bathroom tissue.
- 6. The process of claim 4 or claim 5 wherein the imidazoline moiety is of the following formula: wherein X is an anion and R is selected from the group of saturated and unsaturated paraffinic moieties having a carbon chain length of C11 to C19 and R1 is selected from paraffinic moieties having a carbon chain length of C1-C3.
- 7. The process of claim 6 wherein X is selected from the group consisting of methyl and ethyl sulfate.
- 8. The process of claim 6 wherein X is chloride ion.
- 9. The process of claim 6 wherein the synthetic fiber is selected from the group consisting of the following polymers: polyethylene, polypropylene, polyester, polyamide, polyacrylic and mixtures of these.
- 10. The process of claim 9 wherein R has an average chain length of C16-C19.
- 11. The process of claim 9 wherein the diol is 2,2,4 trimethyl 1,3 pentane diol (TMPD).
- 12. The process of claim 9 wherein the alkoxylated diol is TMPD-(EO)n wherein n is an integer from 1 to 7 inclusive.
- 13. The process of claim 12 wherein alkoxylated diol is ethoxylated 2,2,4 trimethyl 1,3 pentane diol (TMPD-EO).
- 14. The process of claim 5 wherein the process of adding the softener is controlled to achieve a ratio of the average particle size of the dispersed softener to the average fiber diameter in the range of about 0.3 to 5 percent.
RELATED APPLICATIONS
This application is a division of application Ser. No. 09/264,575 filed Mar. 8, 1999, which is a continuation-in-part of Ser. No. 08/851,657, filed May 6, 1997, now U.S. Pat. No. 6,017,418, which is a continuation-in-part of Ser. No. 08/770,929, filed Dec. 23, 1996, now abandoned.
US Referenced Citations (8)
Continuation in Parts (2)
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Number |
Date |
Country |
Parent |
08/851657 |
May 1997 |
US |
Child |
09/264575 |
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US |
Parent |
08/770929 |
Dec 1996 |
US |
Child |
08/851657 |
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US |