A multi-layered product having an embossed interior layer is disclosed along with a method of making the product. The multi-layered product has a first layer with an interior surface, a second layer with an interior surface, and a third layer sandwiched between the first and second layers. The third layer has a first surface and a second surface, and has a thickness there between. The third layer is embossed into a waffle pattern having a plurality of protrusions and a plurality of recesses. Each of the plurality of protrusions and recesses is adjacently aligned and horizontally offset from one another. The plurality of protrusions form a horizontal plane, at the first surface, which is positioned above a horizontal plane formed by the plurality of recesses, at the first surface. The product also has an adhesive which secures the three layers together.

A multi-layered product having an embossed interior layer is disclosed along with a method of making the product. The multi-layered product has a first layer with an interior surface, a second layer with an interior surface, and a third layer sandwiched between the first and second layers. The third layer has a first surface and a second surface, and has a thickness there between. The third layer is embossed into a waffle pattern having a plurality of protrusions and a plurality of recesses. Each of the plurality of protrusions and recesses is adjacently aligned and horizontally offset from one another. The plurality of protrusions form a horizontal plane, at the first surface, which is positioned above a horizontal plane formed by the plurality of recesses, at the first surface. The product also has an adhesive which secures the three layers together.

A method for manufacturing a composite sheet includes a first step of, in a state that a curved part of a first sheet whose one surface rises and whose another surface is recessed and that a second sheet is overlaid on the first sheet, revolving a first roller to convey the first sheet and the second sheet; a second step of passing the sheets between the first roller and a second roller revolving so that a pressing part protruding outward in the radial direction from the outer peripheral surface of the second roller is inserted into the recess of the first roller; forming, in a region within the second sheet opposing the curved part, a protruding part which is surrounded by a flat part; and a third step of joining a boundary part of the first sheet to the second sheet.

A method for manufacturing a composite sheet includes a first step of, in a state that a curved part of a first sheet whose one surface rises and whose another surface is recessed and that a second sheet is overlaid on the first sheet, revolving a first roller to convey the first sheet and the second sheet; a second step of passing the sheets between the first roller and a second roller revolving so that a pressing part protruding outward in the radial direction from the outer peripheral surface of the second roller is inserted into the recess of the first roller; forming, in a region within the second sheet opposing the curved part, a protruding part which is surrounded by a flat part; and a third step of joining a boundary part of the first sheet to the second sheet.

The present disclosure relates to thermoplastic bags having a drawtape within a hem, where the drawtape includes a deformation pattern of a plurality of ribs and a plurality of web areas. The plurality of ribs can include ribs that extend across the drawtape in a non-parallel direction with respect to the width of the drawtape (e.g., at an angle). In some instances, the non-parallel direction causes each rib to point towards a hem hole of the hem that exposes a portion of the drawtape. The plurality of ribs can further be mirrored across an axis that corresponds to a length of the drawtape. In some cases, the ribs are formed via a structural elastic-like film (SELF) process, such as a phased SELF process that leaves a portion of the drawtape without ribs.

An embossing system, comprising an embossing frame, and an embossing cassette. The embossing cassette comprises at least 2 rollers, and a body configured to hold the at least 2 rollers, whereby the at least 2 rollers are removably mounted in the body. The embossing frame is configured to removably house the embossing cassette, and the embossing frame comprises an embossing-frame positioning means configured to cooperate with a corresponding body-positioning means of the embossing cassette at a time when the embossing cassette is housed in the embossing frame, to position the embossing cassette in a predetermined position inside of the ossing frame. The embossing system further comprises a plurality of means for adjusting and correcting a position of a rotation axis of the corresponding roller inside the body, a location of each of the means for adjusting and correcting being at one of each end of the at least 2 rollers, and the plurality of means for adjusting and correcting being configured to adjust and correct in at least two of the following: in an axial direction of the corresponding roller, n one of the 2 dimensions of a plane perpendicular to the axial direction, and the embossing frame is further configured to render the plurality of means for adjusting and correcting the position of the rotation axis inaccessible from an outside of the embossing frame at a time when the embossing cassette is housed Inside the embossing frame.

An embossing system, comprising an embossing frame, and an embossing cassette. The embossing cassette comprises at least 2 rollers, and a body configured to hold the at least 2 rollers, whereby the at least 2 rollers are removably mounted in the body. The embossing frame is configured to removably house the embossing cassette, and the embossing frame comprises an embossing-frame positioning means configured to cooperate with a corresponding body-positioning means of the embossing cassette at a time when the embossing cassette is housed in the embossing frame, to position the embossing cassette in a predetermined position inside of the ossing frame. The embossing system further comprises a plurality of means for adjusting and correcting a position of a rotation axis of the corresponding roller inside the body, a location of each of the means for adjusting and correcting being at one of each end of the at least 2 rollers, and the plurality of means for adjusting and correcting being configured to adjust and correct in at least two of the following: in an axial direction of the corresponding roller, n one of the 2 dimensions of a plane perpendicular to the axial direction, and the embossing frame is further configured to render the plurality of means for adjusting and correcting the position of the rotation axis inaccessible from an outside of the embossing frame at a time when the embossing cassette is housed Inside the embossing frame.

For bonding together two or more plies of cellulose fibers, the plies are fed to a lamination nip between a ply-bonding rotating element and an anvil element. The ply-bonding rotating element has rollers with a cylindrical surface provided with small protuberances co-acting with larger protuberances provided on a cylindrical surface of the anvil rotating element. The plies are bonded, if necessary with the aid of a functional fluid, not containing adhesive, due to the effect of the pressure between the protuberances.

For bonding together two or more plies of cellulose fibers, the plies are fed to a lamination nip between a ply-bonding rotating element and an anvil element. The ply-bonding rotating element has rollers with a cylindrical surface provided with small protuberances co-acting with larger protuberances provided on a cylindrical surface of the anvil rotating element. The plies are bonded, if necessary with the aid of a functional fluid, not containing adhesive, due to the effect of the pressure between the protuberances.

An embossing device (1) includes an embossing area in which are arranged at least: a first embossing roller (5); a second embossing roller (7;9); a first pressure roller (11) co-acting with the first embossing roller; and a second pressure roller (15) co-acting with the second embossing roller. The embossing device further includes a storage unit (51) configured for containing spare embossing rollers (55, 57, 59), for replacing one or the other of the embossing rollers (5, 7) in the embossing area. The storage unit (51) develops substantially vertically, with mutually superposed seats (53) for receiving embossing rollers (55, 57, 59, 5, 7).