Process of using paper containing alkaline sizing agents with improved conversion capability
AssigneeHercules Incorporated
InventorsKyle J. Bottorff, Clement Linus Brungardt, David Howard Dumas, Susan Merrick Ehrhardt, John Charles Gast, Jian-Jian Zhang
Life of this patent
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Abstract
Fine paper that is sized with a 2-oxetanone alkaline sizing agent and that does not encounter machine feed problems in high speed converting or reprographic machines, including continuous forms bond paper and adding machine paper, processes for converting the paper into envelopes, continuous forms bond paper and adding machine paper, and paper products of the processes.
Claims134
A process of using fine paper made under alkaline conditions in high speed precision converting or reprographic operations wherein the improvement comprises that the fine paper has been sized with a 2-oxetanone sizing agent that is not solid at 25.degree. C. and the process of high speed precision converting or reprographic operations is carried out with at least one result selected from the group consisting of:
- a. Running the paper in the form of continuous forms bond paper on a high speed continuous forms laser printer with a rate of billowing in inches of increase per second .times.10,000 less than or equal to about 5 after ten minutes of running time;
- b. Running the paper in the form of reprographic cut paper on a high speed laser printer or copier with causing misfeeds or jams at a rate of 5 or less in 10,000;
- c. Processing the paper on a photocopy machine at a rate of at least 58 sheets per minute;
- d. Converting paper to a standard perforated continuous form on a continuous forms press at press speed of at least about 1775 feet per minute;
- and
- e. Converting the paper into at least about 900 envelopes per minute.
A process of using fine paper made under alkaline conditions in high speed precision converting or reprographic operations wherein the improvement comprises that the fine paper has been sized with a 2-oxetanone sizing agent that has irregularities in the chemical structure of one or more of its hydrocarbon chains and the process of high speed precision converting or reprographic operations is carried out with at least one result selected from the group consisting of:
- a. Running the paper in the form of continuous forms bond paper on a high speed continuous forms laser printer with a rate of billowing in inches of increase per second .times.10,000 less than or equal to about 5 after ten minutes of running time;
- b. Running the paper in the form of reprographic cut paper on a high speed laser printer or copier with causing misfeeds or jams at a rate of 5 or less in 10,000;
- c. Processing the paper on a photocopy machine at a rate of at least 58 sheets per minute;
- d. Converting paper to a standard perforated continuous form on a continuous forms press at press speed of at least about 1775 feet per minute;
- and
- e. Converting the paper into at least about 900 envelopes per minute.
A process of using fine paper made with a sizing agent under alkaline conditions in high speed precision converting or reprographic operations wherein the improvement comprises that at least 70% by weight of the sizing agent is a 2-oxetanone sizing agent having a single 2-oxetanone ring made from at least one fatty acid selected from the group consisting of oleic, linoleic, dodecenoic, tetradecenoic, hexadecenoic, octadecadienoic, octadecatrienoic, eicosenoic, eicosatetraenoic, docosenoic and docosapentaenoic acids, and mixtures of them, the fine paper is internally sized at a size addition rate of at least about 0.5 pounds/ton with the sizing agent, and the process of high speed precision converting or reprographic operations is carried out with at least one result selected from the group consisting of:
- a. Running the paper in the form of continuous forms bond paper on a high speed continuous forms laser printer with a rate of billowing in inches of increase per second .times.10,000 less than or equal to about 5 after ten minutes of running time;
- b. Running the paper in the form of reprographic cut paper on a high speed laser printer or copier with causing misfeeds or jams at a rate of 5 or less in 10,000;
- c. Processing the paper on a photocopy machine at a rate of at least 58 sheets per minute;
- d. Converting paper to a standard perforated continuous form on a continuous forms press at press speed of at least about 1775 feet per minute;
- and
- e. Converting the paper into at least about 900 envelopes per minute.
A process of using fine paper made under alkaline conditions in high speed precision converting or reprographic operations wherein the improvement comprises that the fine paper is internally sized at a size addition rate of at least about 0.5 pounds/ton with a 2-oxetanone sizing agent that is made from a dicarboxylic acid selected from the group consisting of sebacic and azelaic acids and a fatty acid selected from the group consisting of oleic, linoleic, dodecenoic, tetradecenoic, hexadecenoic, octadecadienoic, octadecatrienoic, eicosenoic, eicosatetraenoic, docosenoic and docosapentaenoic acids, and mixtures of them, and the process of high speed precision converting or reprographic operations is carried out with at least one result selected from the group consisting of:
- a. Running the paper in the form of continuous forms bond paper on a high speed continuous forms laser printer with a rate of billowing in inches of increase per second .times.10,000 less than or equal to about 5 after ten minutes of running time;
- b. Running the paper in the form of reprographic cut paper on a high speed laser printer or copier with causing misfeeds or jams at a rate of 5 or less in 10,000;
- c. Processing the paper on a photocopy machine at a rate of at least 58 sheets per minute;
- d. Converting paper to a standard perforated continuous form on a continuous forms press at press speed of at least about 1775 feet per minute;
- and
- e. Converting the paper into at least about 900 envelopes per minute.
A process of using continuous forms bond paper made under alkaline conditions on a high speed, continuous-forms laser printer wherein the improvement comprises that the paper having a given basis weight and is sized at a given level with a 2-oxetanone sizing agent that is not solid at 25.degree. C. has a rate of billowing at least 10% less than that produced when running, on the same printer, a roll of continuous forms bond paper having the same basis weight and sized at the same level with an alkyl ketene dimer size made from a mixture of stearic and palmitic acids, after 10 minutes of running time.
A process of using reprographic cut paper made under alkaline conditions on a high speed sheet-fed copier wherein the improvement comprises that the paper has a given basis weight and is sized at a given level with a 2-oxetanone sizing agent that is not solid at 25.degree. C., and the process is carried out at a rate of about 58 sheets per minute with at least about 50% fewer double-feeds or jams than the number of double-feeds or jams caused when running, on the same copier, sheets of paper having the said basis weight and sized at the level with an alkyl ketene dimer size made from a mixture of stearic and palmitic acids.
A process comprising converting paper to a standard perforated continuous form on a continuous forms press wherein the improvement comprises that the paper has a given basis weight and is sized at a given level with a 2-oxetanone sizing agent that is not solid at 25.degree. C., at a press speed at least 3% higher than paper having the said basis weight and sized at the said level with an alkyl ketene dimer size made from a mixture of stearic and palmitic acids.
A process of converting a roll of envelope paper into envelopes wherein the improvement comprises that the paper has a given basis weight and is sized at a given level with a 2-oxetanone sizing agent that is not a solid at 25.degree. C. wherein the paper is converted into at least 3% more envelopes per minute on a envelope folder than paper having the said basis weight and sized at the said level with an alkyl ketene dimer size made from a mixture of stearic and palmitic acids can be converted on the same envelope folder.
Dependencies are inferred from the claim text.