Control of volatile carbonyl compound in compositions used in printing, printing methods and resulting printed structure
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
B32B-023/02
B32B-023/00
출원번호
US-0776044
(2004-02-09)
발명자
/ 주소
Rozynov,Boris Vasilyevich
Coyle,William J.
Wood,Willard E.
Beaverson,Neil J.
출원인 / 주소
Graphic Packaging Corporation
Cellresin Technologies, LLC
대리인 / 주소
Merchant &
인용정보
피인용 횟수 :
2인용 특허 :
63
초록▼
Volatile organic compounds containing carbonyl groups can be released by lithographic printing materials including inks, fountain solutions and printed materials. Volatile organic compounds containing carbonyl groups can also have a serious negative impact on the taste or odor of staple materials su
Volatile organic compounds containing carbonyl groups can be released by lithographic printing materials including inks, fountain solutions and printed materials. Volatile organic compounds containing carbonyl groups can also have a serious negative impact on the taste or odor of staple materials such as foodstuffs. The volatile materials can be retained in the lithographic compositions and printed materials can be trapped in the printed materials using an improved reactive technology involving a chemically reactive trap for such volatile carbonyl containing compounds.
대표청구항▼
We claim: 1. A printed, reduced odor packaging material having an interior surface and an exterior surface, the packaging material comprising: (a) a substrate layer having a uniform thickness; (b) a printable layer formed on the exterior of the substrate layer, the printable layer comprising a prin
We claim: 1. A printed, reduced odor packaging material having an interior surface and an exterior surface, the packaging material comprising: (a) a substrate layer having a uniform thickness; (b) a printable layer formed on the exterior of the substrate layer, the printable layer comprising a print residue; and (c) a reactive composition, the composition comprising a bisulfite, a hydrazide, a hydrazine, a triazine, a triazole, an imidazoline, or a semicarbazide, capable of reacting with a volatile organic carbonyl compound arising from the residue, to substantially reduce release of the carbonyl compound from the packaging material. 2. The packaging material of claim 1 wherein the substrate comprises a paper or paperboard substrate layer and the printable layer comprises a clay layer. 3. The packaging material of claim 2 wherein the reactive composition is formed in a layer exterior to the paper or paperboard layer. 4. The packaging material of claim 1 wherein the volatile organic compound arises from an ink residue. 5. The packaging material of claim 1 wherein the volatile organic compound arises from a fountain solution. 6. The packaging material of claim 2 wherein the paper layer comprises paper with a thickness of about 50 to 305 μm. 7. The packaging material of claim 2 wherein the paperboard layer comprises paperboard with a thickness of 305 to 1015 μm. 8. The packaging material of claim 1 wherein the packaging material comprises an acrylic layer. 9. The packaging material of claim 3 wherein the hydrazide compound comprises an aromatic hydrazide. 10. The packaging material of claim 9 wherein the aromatic hydrazide comprises benzoic hydrazide. 11. The packaging material of claim 3 wherein the reactive composition also comprises urea. 12. The packaging material of claim 3 wherein the reactive composition comprises a mixture of urea and benzoic hydrazide. 13. The packaging material of claim 3 wherein the reactive composition comprises an alkali metal bisulfite. 14. The packaging material of claim 8 having an exterior acrylic layer with a thickness of 2 to 35 microns. 15. The packaging material of claim 1 wherein the packaging material comprises a paper layer having a thickness of about 50 to 1200 micrometers, a printable clay layer having a thickness of about 10 to 100 micrometers, an ink layer introduced on and into the clay layer in an amount of about 0.5 to 6 grams of ink per square meter of the package material. 16. The packaging material of claim 1 wherein the volatile organic carbonyl compound comprises a C5-9 aldehyde or mixture thereof. 17. A printed, reduced odor packaging material, having an exterior surface and an interior surface, comprising a source of a volatile organic carbonyl compound and comprising a paper substrate having a thickness of about 50 to 1200 micrometers, a layer comprising printable clay having a thickness of about 10 to 100 micrometers, the clay comprising a residue from an ink introduced on and into the clay in an amount of about 0.5 to 6 grams of ink per square meter of the package material or from a fountain solution introduced on and into the clay layer in an amount of about 25 to 4000 milligrams of solution per square meter of the package material; and a reactive composition, the composition comprising a bisulfite, a hydrazide, a hydrazine, a triazine, a triazole, an imidazoline, or a semicarbazide, capable of reacting with a volatile organic carbonyl compound arising from the residue, to substantially reduce release of the carbonyl compound from the packaging material. 18. The packaging material of claim 17 wherein the carbonyl compound is an aldehyde. 19. The packaging material of claim 17 wherein the paper substrate comprises paperboard with a thickness of 400 to 800 micrometers. 20. The packaging material of claim 17 wherein the cellulosic layer comprises paper with a thickness of 150 to 250 micrometers. 21. The packaging material of claim 17 wherein the hydrazide compound comprises an aromatic hydrazide. 22. The packaging material of claim 21 wherein the aromatic hydrazide comprises benzoic hydrazide. 23. The packaging material of claim 17 wherein the reactive composition also comprises urea. 24. The packaging material of claim 17 wherein the reactive composition comprises an alkali metal bisulfite. 25. The packaging material of claim 17 having an exterior acrylic layer. 26. The packaging material of claim 17 wherein the volatile organic carbonyl compound comprises a C5-9 aldehyde or mixtures thereof.
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이 특허에 인용된 특허 (63)
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