US5030325A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of manufacturing gloss paper
Assignee: New Oji Paper Co Ltd
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Filing: 1989-06-21
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Granted: 1991-07-09
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Expires: 2009-06-21
Abstract
Abstract A method of manufacturing gloss coated paper by applying a coating composition containing a pigment and an adhesive on base paper. The pigment contains 5 to 40% by weight of satin white with an average particle diameter of 0.8 μm or below and an organic pigment with an average particle diameter of 0.1 to 1.0 μm and a glass transition point (Tg) of 40° C. or above. The weight ratio of the satin white to the organic pigment is from 0.2/1 to 5/1. The coating composition provides a coated paper with excellent gloss and smoothness.
Inventors
- 👤 Soichi Saji
- 👤 Tatsuya Nakabai
- 👤 Teruo Nakamura
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 19:27
CPC Classifications
D; D21; D21H; D21H19/00; D21H19/36; D21H19/44; D21H19/50; D21H19/38; D21H19/42; D21H19/56; D21H19/58; D21H19/60; D21H25/00; D21H25/04; D21H25/06
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
115 words
A method of manufacturing gloss coated paper comprising the steps of: coating a composition comprising a pigment and an adhesive on a base paper; drying said coated base paper; and finishing said dried, coated paper, said pigment comprising 5 to 40% by weight of satin white particles and particles of an organic pigment, said satin white particles having an average particle diameter of 0.1 to 0.8 microns and said organic pigment particles having an average particle diameter of 0.1 to 1.0 microns and a glass transition point (Tg) of 40° C. or higher, said satin white being contained in said pigment in a weight ratio of 0.2/1 to 5/1 with respect to said organic pigment.
Claim 2
Independent Claim
115 words
A method of manufacturing gloss coated paper comprising the steps of: coating a composition comprising a pigment and an adhesive on a base paper; drying said coated base paper; and finishing said dried, coated paper, said pigment comprising 5 to 40% by weight of satin white particles and particles of an organic pigment, said satin white particles having an average particle diameter of 0.1 to 0.8 microns and said organic pigment particles having an average particle diameter of 0.1 to 1.0 microns and a glass transition point (Tg) of 40° C. or higher, said satin white being contained in said pigment in a weight ratio of 0.2/1 to 5/1 with respect to said organic pigment.
Claim 3
Dependent Claim
38 words
A method of manufacturing gloss coated paper according to claim 1, wherein said finishing comprises supplying said dried, coated paper through a nip consisting of a metal roll heated to at least 100° C. and an elastic roll.
Claim 4
Dependent Claim
35 words
A method of manufacturing gloss coated paper according to claim 1, wherein the average particle diameter of the satin white is 0.3 microns and the average particle size of the organic pigment is 0.5 microns.
Claim 5
Dependent Claim
35 words
A method of manufacturing gloss coated paper according to claim 1, wherein the average particle diameter of the satin white is 0.5 microns and the average particle size of the organic pigment is 0.25 microns.
References Cited (Backward Citations)
US4064304A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1994-07-08 | 1995-01-07 | 1995-07-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-07-08 | 1999-01-07 | 1999-07-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-07-08 | 2003-01-07 | 2003-07-09 | $7700.00 | Window Closed / Lapsed |