Stuffing and manufacturing method thereof
Assignee3M Innovative Properties Company
InventorsHong Bing Xiang, Feng Xu, Guo Tong Zhao
Life of this patent
Estimating the term…
Abstract
Disclosed are a stuffing (4) and a method for manufacturing the same, the stuffing (4) comprising a branch (402) and trunk (401) structure formed with a microporous polymer, and having a trunk (401), and branches (402) formed by splitting from the trunk (401). The stuffing (4) of the present invention can still maintain at a dispersedly stuffing state after multiple washings, without notable phenomena such as agglomeration and entanglement.
Claims16
A stuffing, characterized in that the stuffing comprises a branch and trunk structure formed by a microporous polymer, wherein the branch and trunk structure comprises a trunk and branches formed by splitting from the trunk, and wherein the branch and trunk structure has a maximum longitudinal length of about 10 to about 130 mm on average and a maximum lateral dimension of about 2 to about 15 mm on average.
A method for manufacturing a stuffing, including providing a microporous polymer sheet having a thickness of about 0.25 to about 2 mm, allowing the sheet to be positioned between two gear blade-bearing roller wheels rotating in reverse directions for cutting, and adjusting a gap between the two gear blade-bearing roller wheels to between 0 and about 1 mm so as to cut and mold the sheet into a branch and trunk structure.
Dependencies are inferred from the claim text.