IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0288465
(2011-11-03)
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등록번호 |
US-8465622
(2013-06-18)
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발명자
/ 주소 |
- Huang, Yan C.
- Singh, Kapil M.
- Shelmidine, David B.
- Becker, Jeff R.
- Fosco, Paul J.
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출원인 / 주소 |
- International Paper Company
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대리인 / 주소 |
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인용정보 |
피인용 횟수 :
1 인용 특허 :
118 |
초록
▼
The present invention relates to a sizing composition that, when applied to paper substrate, creates a substrate, preferably suitable for inkjet printing, having increased print density, enhanced print mottle, as well as print sharpness, low HST, and/or image dry time, the substrate preferably havin
The present invention relates to a sizing composition that, when applied to paper substrate, creates a substrate, preferably suitable for inkjet printing, having increased print density, enhanced print mottle, as well as print sharpness, low HST, and/or image dry time, the substrate preferably having high brightness and reduced color-to-color bleed as well. In addition, the present invention relates to a method of reducing the HST of a paper substrate by applying the sizing composition to at least one surface thereof. Further, the application relates to methods of making and using the sizing composition, as well as methods of making and using the paper containing the sizing composition.
대표청구항
▼
1. A sizing composition, comprising at least one pigmentat least one binder;at least one cationic nitrogen containing organic species having one or more quaternary ammonium functional groups and selected from the group consisting of: polymers and copolymers of diallyldimethyl ammonium chloride (DADM
1. A sizing composition, comprising at least one pigmentat least one binder;at least one cationic nitrogen containing organic species having one or more quaternary ammonium functional groups and selected from the group consisting of: polymers and copolymers of diallyldimethyl ammonium chloride (DADMAC); copolymers of vinyl pyrrolidone (VP) with quaternized diethylaminoethylmethacrylate (DEAMEMA); and poly[oxyethylene(dimethyliminio)ethylene(dimethyliminio)ethylene]dichlorides;at least one inorganic salt; andat least one wetting agent. 2. The sizing composition according to claim 1, comprising at least one pigmentat least two binders;at least one cationic nitrogen containing organic species having one or more quaternary ammonium functional groups;at least one inorganic salt; andat least one wetting agent. 3. The sizing composition according to claim 2, wherein the at least two binders are polyvinyl alcohol and starch. 4. The sizing composition according to claim 3, wherein the polyvinyl alcohol and starch are present at a starch/polyvinyl alcohol weight ratio of from 8/1 to 1/1. 5. The sizing composition according to claim 4, wherein the total binder is present at an amount ranging at least 20 wt %, based upon the total weight of the solids in of the composition. 6. The sizing composition according to claim 4, further comprising from 20 to 40 wt % based on the total weight of the solids in the composition of an optical brightening agent. 7. The sizing composition according to claim 4, further comprising an optical brightening agent. 8. The sizing composition according to claim 7, wherein the optical brightening agent is cationic. 9. The sizing composition according to claim 1, comprising at least one pigment at an amount of at least 30 wt % based upon the total weight of the solids in of the compositionat least one binder at an amount of at least 20 wt % based upon the total weight of the solids in of the composition;at least one cationic nitrogen containing organic species having one or more quaternary ammonium functional groups at an amount ranging from 1 to 20 wt % based upon the total weight of the solids in of the composition;at least one inorganic salt at an amount ranging from 0.5 to 5 wt % based upon the total weight of the solids in of the composition, andat least one wetting agent at an amount ranging from 0.5 to 20 wt % based upon the total weight of the solids. 10. The sizing composition according to claim 9, comprising at least two binders wherein the at least two binders are starch and polyvinyl alcohol at a weight ratio of from 8/1 to 1/1 starch/polyvinyl alcohol; andan optical brightening agent. 11. The sizing composition according to claim 1, wherein the sizing composition further comprises an optical brightening agent. 12. The sizing composition according to claim 11, wherein the optical brightening agent is cationic. 13. The sizing composition according to claim 1, wherein the at least one inorganic salt comprises at least one cationic metal selected from the group consisting of sodium, calcium and magnesium. 14. The sizing composition according to claim 1, wherein the at least one wetting agent has an HLB value of from 4 to 10. 15. The sizing composition according to claim 14, wherein the at least one wetting agent is at least one of: pyrrolidone; caprylyl pyrrolidone; or lauryl pyrrolidone. 16. The sizing composition according to claim 1, wherein the at least one wetting agent is non-ionic. 17. The sizing composition according to claim 1, wherein the at least one pigment is selected from the group consisting of clay and starch. 18. The sizing composition according to claim 1, wherein the at least one wetting agent has an HLB value of from 12 to 20. 19. The sizing composition according to claim 18, wherein the at least one wetting agent has an HLB value of from 12 to 18. 20. The sizing composition according to claim 18, wherein the at least one wetting agent has an HLB value of from 14 to 20. 21. The sizing composition according to claim 18, wherein the at least one wetting agent is at least one of: an alkoxylate; or an alcohol alkoxylate. 22. The sizing composition according to claim 21, wherein the at least one wetting agent is at least one linear alcohol alkoxylate. 23. The sizing composition according to claim 1, wherein the at least one cationic nitrogen containing organic species having one or more quaternary ammonium functional groups is selected from the group consisting of: polymers and copolymers of diallyldimethyl ammonium chloride (DADMAC).
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