Pre-treatment coating
AssigneeHewlett-Packard Development Company, L.P.
InventorsBor-Jiunn Niu, Jason Swei, Haigang Chen, Sandeep K Bangaru
Life of this patent
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Abstract
The present disclosure provides pre-treatment coatings, media substrates, and related methods. As such, a pre-treatment coating can include an evaporable solvent, a matrix, and a wax. The matrix can include a binder and a fixer, and the wax can include wax particles dispersed within the matrix. At least a portion of the wax particles can have a particle size that is greater than a thickness of the matrix when the pre-treatment coating is applied to a media substrate at a basis weight from 0.5 gsm to 20 gsm and the evaporable solvent removed.
Claims18
A pre-treatment coating, comprising:
- an evaporable solvent;
- a matrix coating including a binder and a fixer;
- and
- a wax including wax particles dispersed within the matrix, wherein the wax particles are present at from 11 wt % to 17 wt % based on the total weight of the pre-treatment coating after removal of the evaporable solvent,
- wherein at least a portion of the wax particles have a particle size that is greater than a thickness of the matrix when the pre-treatment coating is applied to a media substrate at a basis weight ranging from 0.5 gsm to 20 gsm and the evaporable solvent removed.
A printable medium, comprising:
- a media substrate;
- and
- a pre-treatment coating applied to the media substrate, the pre-treatment coating, comprising:
- a matrix, including:
- a fixer, and
- a binder;
- and
- wax particles having an average particle size from 100 nm to 100 μm, wherein the wax particles are present at from 11 wt% to 17 wt% based on the total weight of the pre-treatment coating;
- wherein at least a portion of the wax particles have a particle size that is larger than a thickness of the matrix.
A method of providing a durable coating to a print medium, comprising:
- coating a substrate with a pre-treatment coating, comprising:
- an evaporable solvent;
- a matrix including a fixer and a binder, and
- a wax including wax particles, wherein the wax particles are present at from 11 wt % to 17 wt % based on the total weight of the pre-treatment coating after removal of the evaporable solvent;
- and
- drying the pre-treatment coating by removing the evaporable 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.