초록 ▼

A pet chew may be manufactured by co-extruding multiple compositions to form a layered construction. Separate extruders may be provided to tailor processing conditions to heat and/or shear sensitive compositions, such as nutritional additives, and the respective extrudates may be combined such that

A pet chew may be manufactured by co-extruding multiple compositions to form a layered construction. Separate extruders may be provided to tailor processing conditions to heat and/or shear sensitive compositions, such as nutritional additives, and the respective extrudates may be combined such that relatively higher levels of nutritional compositions may be provided as an outer layer.

대표청구항 ▼

1. A process for forming a pet chew comprising: providing a first extruder operable with a first extruder die providing a first extruder die profile shape, a second extruder operable with a second extruder die providing a second extruder die profile shape and a third extruder operable with a third e

1. A process for forming a pet chew comprising: providing a first extruder operable with a first extruder die providing a first extruder die profile shape, a second extruder operable with a second extruder die providing a second extruder die profile shape and a third extruder operable with a third extruder die having a third extruder die profile shape;providing a first composition containing a nutritional additive to said first extruder and a second composition to said second extruder and a third composition containing a nutritional additive to said third extruder;extrusion processing said first composition through said first extruder and said first extruder die to form a first extrudate having a first extrudate profile shape;extrusion processing said second composition through said second extruder and said second extruder die to form a second extrudate having a second extrudate profile shape;extrusion processing said third composition through said third extruder and said third extruder die to form a third extrudate having a third extrudate profile shape;joining said first extrudate, said second extrudate and said third extrudate to one another with a combining die located downstream of the first extruder die, the second extruder die and the third extruder die; wherein said first extruder is operating at a selected barrel temperature (BT1), including a selected residence time for said first composition (RT1) and a selected shear rate (γ1);wherein said second extruder is operating at a selected barrel temperature (BT2), a selected residence time for said second composition (RT2) and a selected shear rate (γ2);wherein said third extruder is operating at a selected barrel temperature (BT3), a selected residence time for said third composition (RT3) and a selected shear rate (γ3);wherein at least one of the following conditions is present:BT1