Three-dimensional printing with food contact compliant agents

A three-dimensional printing kit, comprising:

• a food contact compliant fusing agent that is jettable from a fluid jet printer, the food contact compliant fusing agent comprising:
• from about 70 wt % to about 96 wt % of water based on the total weight of the food contact compliant fusing agent;
• a food contact compliant carbon black dispersion present in an amount of from about 3 wt % to about 10 wt % by solids weight of the carbon black dispersion out of the total weight of the food contact compliant fusing agent;
• from 0.1 wt % to 0.3 wt % of dioctyl sulfosuccinate sodium salt;
• a food contact compliant water-soluble first co-solvent present in the food contact compliant fusing agent in an amount of from about 1 wt % to about 25 wt % based on the total weight of the food contact compliant fusing agent, wherein the food contact compliant water-soluble first co-solvent comprises glycerol and polyethylene glycol;
• and
• 2-phenoxyethanol,
• wherein the food contact compliant fusing agent is devoid of sodium dodecyl sulfate;
• a food contact compliant detailing agent comprising:
• from about 75 wt % to about 99 wt % of water based on the total weight of the food contact compliant detailing agent;
• a food contact compliant chelating compound present in an amount of from about 0.01 wt % to about 1 wt % based on the total weight of the food contact compliant detailing agent;
• and
• 2-phenoxyethanol;
• and
• a thermoplastic polymer powder.

A three-dimensional printing system, comprising:

• a powder bed comprising a thermoplastic polymer powder;
• a fluid jet printer, comprising:
• a first fluid ejector in communication with a reservoir of a food contact compliant fusing agent to jet the food contact compliant fusing agent onto the powder bed, wherein the food contact compliant fusing agent comprises:
• about 70 wt % to about 96 wt % of water based on the total weight of the food contact compliant fusing agent;
• a food contact compliant carbon black dispersion present in an amount of from about 3 wt % to about 10 wt % based on the total weight of the food contact compliant fusing agent;
• from 0.1 wt % to 0.3 wt % of dioctyl sulfosuccinate sodium salt;
• a food contact compliant water-soluble first co-solvent present in the food contact compliant fusing agent in an amount of from about 1 wt % to about 25 wt % based on the total weight of the food contact compliant fusing agent, wherein the food contact compliant water-soluble first co-solvent comprises glycerol and polyethylene glycol;
• and
• 2-phenoxyethanol,
• wherein the food contact compliant fusing agent is devoid of sodium dodecyl sulfate;
• and
• a second fluid ejector in communication with a reservoir of a food contact compliant detailing agent to print the food contact compliant detailing agent onto the powder bed, wherein the food contact compliant detailing agent comprises:
• from about 75 wt % to about 99 wt % of water based on the total weight of the food contact compliant detailing agent;
• a food contact compliant chelating compound present in an amount of from about 0.01 wt % to about 1 wt % based on the total weight of the food contact compliant detailing agent;
• and
• 2-phenoxyethanol;
• and
• a fusing radiation source to expose the powder bed to electromagnetic radiation sufficient to fuse thermoplastic polymer powder that has been printed with the food contact compliant fusing agent.