Pre-treatment coating
AssigneeHewlett-Packard Development Company, L.P.
InventorsJason Swei, Haigang Chen, Bor-Jiunn Niu
Life of this patent
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Abstract
The present disclosure provides pre-treatment compositions and related methods. As such, a pre-treatment coating for a print medium can include an evaporable solvent, a matrix, and a wax. The matrix can include from 50 wt % to 80 wt % of a fixer and from 5 wt % to 20 wt % of a low Tg latex. The wax can be present at from 5 wt % to 30 wt %. The weight percentages of the matrix and the wax are based on a total amount present in the pre-treatment coating after removal of the solvent.
Claims15
A pre-treatment coating for an uncoated print medium, comprising:
- an evaporable solvent;
- a matrix, including:
- from 50 wt % to 80 wt % of a fixer, and
- from 5 wt % to 20 wt % of a low Tg latex;
- and
- a wax at from 5 wt % to 30 wt %,
- wherein weight percentages of the matrix and the wax are based on a total amount present in the pre-treatment coating after removal of the evaporable solvent.
A printable medium, comprising:
- an uncoated media substrate;
- and
- a pre-treatment coating applied to the uncoated media substrate to form a the printable medium, the pre-treatment coating, comprising:
- a matrix, including:
- from 50 wt % to 80 wt % of a fixer, and
- from 5 wt % to 20 wt % of a low Tg latex;
- and
- wax particles present at from 5 wt % to 30 wt %, the wax particles having an average particle size from 0.5 μm to 50 μm, and wherein at least a portion of the wax particles have a particle size that is greater than a thickness of the matrix applied to the media substrate.
A method of providing a durable coating to an uncoated print medium, comprising:
- coating an uncoated media substrate with a pre-treatment coating, the pre-treatment coating including:
- solvent,
- a matrix including fixer and low Tg latex, and
- wax particles;
- and
- drying the pre-treatment coating to remove the solvent such that the matrix is reduced to a thickness, wherein at least a portion of the wax particles have a particle size that is greater than the thickness of the matrix.
Dependencies are inferred from the claim text.