초록 ▼

Aseptically sterilized package of a liquid nutritional product manufactured by (a) providing a multi-layered plastic sheet having at least one polymeric structural layer and at least one polymeric barrier layer; (b) passing the sheet through a peroxide bath; (c) locating the sheet in a sterile envir

Aseptically sterilized package of a liquid nutritional product manufactured by (a) providing a multi-layered plastic sheet having at least one polymeric structural layer and at least one polymeric barrier layer; (b) passing the sheet through a peroxide bath; (c) locating the sheet in a sterile environment; (d) applying heat a plurality of times to the sheet; (e) forming the sterilized sheet into a container having a body portion; (f) filling the body portion with a liquid nutritional product; (g) sealing the container with a tabbed, multi-layered closure; and (h) separating the sealed container from the remainder of the sheet. Preferably the liquid nutritional product is infant formula. In the preferred embodiment of the invention, the sheet is a laminate having two structural layers, each being about 45% of the laminate thickness and secured to either side of the barrier layer, which is about 5% of the laminate thickness, by an adhesive layer of about 2.5% of the laminate thickness. The container is prepared by thermoforming and deep drawing the multi-layered sheet. Pressure forming of the container is performed with the sheet temperature being 162.degree. C. using a plug-assist and a pressure of about 5 BAR. Once filled, the container is sealed using a thermo sealing process.

대표청구항 ▼

[ We claim:] [1.] A method of manufacturing an aseptically sterilized package of a liquid nutritional product, the method comprising the steps of:(a) providing a multi-layered plastic sheet having at least one polymeric structural layer and at least one polymeric barrier layer;(b) passing the sheet

[ We claim:] [1.] A method of manufacturing an aseptically sterilized package of a liquid nutritional product, the method comprising the steps of:(a) providing a multi-layered plastic sheet having at least one polymeric structural layer and at least one polymeric barrier layer;(b) passing the sheet through a peroxide bath;(c) locating said sheet in a sterile environment;(d) applying heat a plurality of times to said sheet;(e) forming said sheet into a container having a body portion;(f) filling said body portion with a liquid nutritional product;(g) sealing the container with a multi-layered closure having a tab to define a sealed container; and(h) separating the sealed container from a remainder of said sheet.