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US 5,472,154 AGranted
High spiral angle winding cores
AssigneeSonoco Products Company
InventorsYanping Qiu, Terry D. Gerhardt, Tony F. Rummage, Clifford A. Bellum, Jr.
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AssigneeSonoco Products Company
InventorsYanping Qiu, Terry D. Gerhardt, Tony F. Rummage, Clifford A. Bellum, Jr.
Estimating the term…
The invention provides spirally wound paperboard cores for winding of textiles and other materials and which have enhanced high speed winding capability. The spirally wound paperboard plies forming the body wall of the paperboard core have a predetermined spiral winding angle with respect to the axis of the cylindrical body wall of greater than 71 degrees. In winding cores having a relatively large ID of between about 4.8 in. (120 mm) and 6 in. (150 mm), the paperboard plies forming the spirally wound cores have a winding angle of greater than 74 degrees. In winding cores having a lower ID of less than 4.8 inches (120 mm), all of the paperboard plies have a width of 3.5 in. (89 mm) or less and a spiral winding angle of greater than 71 degrees.
A spirally wound paperboard winding core for textiles or other materials and having enhanced high speed winder capability comprising:
A spirally wound paperboard winding core for winding of textiles or other materials and having enhanced high speed winder capability comprising:
The process for forming a spirally wound paperboard winding core comprising the steps:
The process for forming a spirally wound paperboard winding core comprising the steps:
An improved high speed yarn winding process for textile yarns comprising the steps:
An improved high speed winding process for textile yarns comprising the steps:
Dependencies are inferred from the claim text.