Abstract:
In the manufacture of a multi-ply fibrous sheet structure, each of a pair of plies of fibrous web material is provided with a spot embossed first pattern defined by inwardly directed nested protuberances that are adhesively joined at distal surfaces thereof to confronting surfaces of the opposite ply, and the adhesively joined plies are provided with a spot embossed second pattern defined by registered, unidirectionally presented protuberances in each of the joined plies and fitted compactly one within the other.
Abstract:
In the manufacture of a multi-ply fibrous sheet structure, each of a pair of plies of fibrous web material is provided with a spot embossed first pattern defined by inwardly directed nested protuberances that are adhesively joined at distal surfaces thereof to confronting surfaces of the opposite ply, and the adhesively joined plies are provided with a spot embossed second pattern defined by registered, unidirectionally presented protuberances in each of the joined plies and fitted compactly one within the other.
Abstract:
A series of labels remain supported on a liner after a matrix of waste label material has been stripped from the liner. The adhesion of the matrix to the liner is weakened prior to stripping of the matrix by mechanically disturbing without severing, as by embossing, areas of the construction where the matrix overlies the liner. Areas where the leading ends of labels overlie the liner may also be similarly disturbed to make eventual peeling of the liner from the labels easier. In another aspect, the construction may be precrushed with a blunt die prior to die-cutting of the labels to eliminate "halo" effect upon stripping of the matrix.
Abstract:
Apparatus for embossing web material such as a heated thermoplastic web material comprises first and second embossing members each having a resilient embossing surface, and means mounting the embossing members for relative movement to define a roll nip between them. The resilient surface of the first embossing member has a primary embossing pattern thereon and is of harder durometer than the resilient surface of the second embossing member. Both resilient surfaces are soft enough to be temporarily deformed in the roll nip to press the web material between them into surface conforming contact with the primary embossing pattern. The temporary deformation also helps to expel air from between the web material and the primary embossing pattern to insure surface conforming contact of the web to the embossing pattern. A secondary embossing pattern is provided on the resilient surface of the second embossing member and is of lesser depth than the primary embossing pattern. The temporary deformation assists in providing full contact with both patterns.A method of embossing the material includes heating the thermoplastic web material to a temperature within its softening range, introducing the heated material to a nip formed between the first and second embossing members, and allowing the embossed material to cool to set the pattern before removing it from the first embossing member.
Abstract:
Disclosed is a non-nested, two-ply, absorbent fibrous sheet material consisting of two webs which each have a plurality of crests and depressions on its surface facing the other web. The crests on each web are positioned between the crests of the other web and are spaced from the depressions of the other web to leave spaces in the sheet material for increased absorbency and bulk. The two webs are joined together at locations intermediate the crests and depressions of at least one of the webs, preferably by mechanical welding in a manner which produces perforations in the sheet material. Also disclosed is the method and apparatus for making the two-ply sheet material.
Abstract:
A method for the manufacture of laminated fabrics wherein separate webs are differentially stretched and bonded in superposed relation by means of limited bondings separated by substantial unbonded regions. Thereafter the bonded webs are relaxed, whereupon one web contracts more than the other web, and the webs separate in the unbonded regions. The webs also may be individually deformed before being superposed so as to project a portion of the fibers of each web out of the plane of each web in a pattern over the entire surface area of each web and provide relatively permanently set interruptions in the planar structure of said web on at least one surface of the web for purposes of increasing the stretchable quality of the webs. The deformed webs may be superposed with surface interruptions of one web facing inwardly of the superposed webs so as to abut the other web or its surface interruptions and thus maintain the superposed webs out of intimate contact at least in the unbonded regions.
Abstract:
This invention relates to an element for embossing a braille character into paper. More particularly, the invention relates to a means of printing braille characters into both sides of paper at the same time. Each of the embossing elements includes one or more indentations therein arranged in rows and columns according to an established braille system and spaced apertures aligned in rows and columns, there being a total number of apertures equal to the products of the number of rows times the number of columns, the rows and columns of the apertures being displaced from the rows and columns of indentations and adaptable to receive therein the indentations of opposed embossing elements as the elements are utilized in a printing press.