Method of manufacturing glass direct roving
AssigneeNippon Electric Glass Co., Ltd.
InventorAkira Kunitomo
Life of this patent
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Abstract
Addressed is the object of improving an unwinding performance of a glass direct roving at an end surface. A method of manufacturing a glass direct roving includes winding a glass strand into a cylindrical shape while traversing the glass strand. In the winding, the glass strand is wound traversing the glass strand under the conditions that a wind order of the crosswinding is or greater, and an interval parameter, which is the smaller value among “b” and “A−b”, is from “(A/2)*−(A/4)*” to “(A/2)*−1”, where “A” is the wind order, “(A/2)*” is a maximum integer no greater than ½ the wind order, “(A/4)*” is a maximum integer no greater than ¼ the wind order, and a mixed fraction “a+(b/A)” is used to express a cyclewind of the crosswinding.
Claims2
A method of manufacturing a glass direct roving comprising:
- winding a glass strand into a cylindrical shape while traversing the glass strand,
- wherein in the winding, the glass strand is wound while forming a crosswinding under the conditions that
- a wind order of the crosswinding is 10 or greater, and
- an interval parameter, which is the smaller value among “b” and “A−b”, is “(A/2)*−(A/4)*” or greater and “(A/2)*−1” or less,
- where “A” is the wind order, “(A/2)*” is a maximum integer no greater than ½ the wind order, “(A/4)*” is a maximum integer no greater than ¼ the wind order, and a mixed fraction “a+(b/A)” is used to express a cyclewind of the crosswinding.
Dependencies are inferred from the claim text.