发明授权
US4828914A Non-woven flannel fabric 失效
无纺布法兰绒面料

Non-woven flannel fabric
摘要:
A method and apparatus is set forth to form a flannel-like product. A non-woven web of fibers of two contrasting shades of color are needled twice to form a non-woven fabric with the coloration of woven flannel material. A calendar roll smooths the fabric to remove the appearance of the needling operations and get a non-woven flannel-like product.
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