Patent classifications
B
PERFORMING OPERATIONS; TRANSPORTING
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B31
MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
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B31F
MECHANICAL WORKING OR DEFORMATION OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
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1/00
Mechanical deformation without removing material, e.g. in combination with laminating
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B31F1/008
Shaping of tube ends, e.g. flanging, belling, closing, rim-rolling or corrugating; Fixing elements to tube ends
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B31F1/008

Method of making a paper straw with a bend
10974477 · 2021-04-13 ·

A method of making a paper straw with a bend includes coating a strip of paper with polyethylene on a first side and a second side of the strip of paper; cutting the strip of paper to a desired length; providing a spring apparatus of a predetermined length; rolling the strip of paper around the spring apparatus such that the strip of paper partially overlaps with itself to form a straw, the polyethylene holding the strip of paper in a rolled position; applying steam to the straw; and bending the straw to create a bend, the straw remains bent; and removing the spring apparatus from the straw.