A paper substrate having enhanced print density

Details A paper substrate having enhanced print density A paper substrate having enhanced print density

D - Textiles, Paper

21

H

D21H 21/16 (2006.01) D21H 21/18 (2006.01) D21H 17/07 (2006.01) D21H 17/28 (2006.01) D21H 17/36 (2006.01) D21H 17/45 (2006.01) D21H 19/44 (2006.01) D21H 21/30 (2006.01)

Patent

CA 2627050

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, 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 substate 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.

La présente invention concerne une composition d~encollage qui, une fois appliquée sur un substrat en papier, crée un substrat convenant de préférence à l~impression à jet d~encre, présentant une densité d~impression et une netteté d~impression accrues, un HST et/ou un temps de séchage de l~image réduits. En outre, le substrat présente idéalement une brillance accrue et une faible migration d~une couleur à l~autre. De plus, la présente invention porte sur un procédé de réduction de l~HST du substrat en papier par l~application de la composition d~encollage sur au moins l~une de ses surfaces. L~application se rapporte aussi aux procédés destinés à la fabrication et à l~utilisation de la composition d~encollage, ainsi qu~aux procédés destinés à la fabrication et à l~utilisation de papiers contenant la composition d~encollage.

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