A heat activatable adhesive and associated method of use, suitable for permanently bonding any kind of display graphic to any mounting substrate at a temperature setting of 110-130 F in a roll or vacuum press laminator. The preferred adhesive is a combination of polyvinyl acetate ethylene emulsion (VAE) and polyurethane dispersions (PUD), each with very different bonding attributes when considered alone. When the adhesive is on a smooth mounting surface such as a coated foam board or the like for bonding against a smooth coated surface of display item, a multiplicity of micro perforations are provided through the adhesive whereby air between the opposed smooth surfaces can escape into the foam board during lamination. Other aspects include a process for manufacturing a foam board for mounting display items, having a perforated adhesive layer.

A method for nano-depth surface activation of a PTFE-based membrane and relates to the technical field of polymer composites is disclosed. The method comprises the following steps: covering a functional surface of a PTFE-based nano functional composite membrane, performing surface activation treatment on a single surface of the membrane to which a bonding adhesive is applied, and migrating and complexing a high-toughness cold bonding adhesive tape on the membrane surface, with an activated structure layer, of the PTFE-based nano functional composite membrane through a mechanical adhesive applying device to form an adhesive-membrane complex. An extremely strong affinity and a high-strength bonding performance are generated between the membrane and the adhesive, and the adhesive-membrane complex is formed. Integration of membrane/adhesive bonding complexing, membrane/membrane bonding complexing and membrane/adhesive layer bonding is realized.

The present invention relates to drying processes for composite films comprising a polyvinyl acetal on a carrier as well as to composite films and polyvinyl acetal films obtained in such processes.

A method for manufacturing a flat laminate sheet comprises coupling first and second thermoplastic layers to one another without glue by superficially heating coupling surfaces of the two layers and pressing the heated layers onto one another without glue to form a first combined thermoplastic multilayer free from glue, the layers each being a film free of plasticizers and comprising PVC, PET, PETG, PP, and/or PE, and coupling a third thermoplastic layer of a film comprising PVC, PET, PETG, PP, and/or PE to the first combined thermoplastic multilayer by superficially heating coupling surfaces of the third layer and the first combined thermoplastic multilayer and pressing the heated third layer and the first combined thermoplastic multilayer onto one another without glue to form a multilayer laminate sheet free from glue, being planar, flat, and rigid, and having a thickness between approximately 0.75 to 4 mm.

A laminate structure is provided which includes a first polymeric substrate laminated to a second polymeric substrate. A primer coating comprising the reaction product of polyethyleneimine and formaldehyde is included on the surface of the first polymeric substrate which is subsequently printed with an ink or toner image prior to lamination to the second polymeric substrate. The primer coating provides good toner and/or ink adhesion to the polymeric substrate. The primer coating also provides improved bond strength upon lamination of the first and second polymeric substrates as well as providing water resistance to the laminate structure.

To provide a method for producing a laminated film, a laminated film, and a packaging container, which are capable of reducing an environmental load and suppressing generation of air bubbles in an adhesive layer. In the method for producing a laminated film, a solventless adhesive has a viscosity at 50 C. of from 700 to 2000 mPa.Math.s. The coating device further includes a coating unit, the coating unit including: a pair of rolls, a plurality of transfer rolls configured to sequentially transfer and supply the solventless adhesive, and an application roll disposed on the opposite side of a fine clearance from a doctor roll, the doctor roll being one of the plurality of transfer rolls and positioned at an end on a side where supply of the solventless adhesive starts. A peripheral speed of the doctor roll is from 1.0 to 10.0 m/min.

A machine for making insulation may include two or more rotatory members configured to pull a precut insulation product at a first rate, wherein the precut insulation product comprises a first paper layer, a second paper layer, and a continuous paper core sheet, a first restraint and a second restraint spaced apart a predetermined distance to create a first space therebetween, and two or more second rotary members configured to feed a continuous paper sheet at a second rate into the first space such that the continuous paper sheet forms a plurality of flexible loops defining a plurality of air channels that extend in a direction that is substantially perpendicular with a machine direction. The first rate may be slower than the second rate.

A sheet laminator includes a sheet ejection roller pair, a sheet ejection tray, a presser, and circuitry. The sheet ejection tray has a receiving face to receive the two-ply sheet standing in the sheet ejection tray, and a stacking face facing the receiving face and inclined with respect to the vertical direction. The presser has a leading end to move the two-ply sheet on the receiving face toward the stacking face, and press the two-ply sheet onto the stacking face. The circuitry is to perform a first operation to move the leading end of the presser from the receiving face to an intermediate position beyond the extension line and before the stacking face, perform a second operation to move the leading end of the presser from the intermediate position to the stacking face, and press the two-ply sheet against the stacking face with the leading end of the presser.

The present disclosure refers to a method of manufacturing a strip for sealing a laminated packaging material for liquid food products, wherein a pre-manufactured strip comprising a plurality of layers made of polymer material is provided, the layers comprising at least an inner surface layer, an outer surface layer and center layer. In the method, at least one of the inner and outer surface layers is exposed to a heat treatment effecting that a degree of transparency of the manufactured strip is increased with regard to the degree of transparency of the pre-manufactured strip. The present disclosure further refers to a strip manufactured in the method and to a laminated packaging material and a respective packaging container comprising the strip. The present disclosure also refers to a respective device to execute the method.

Lamination transfer films and methods for transferring a structured layer to a receptor substrate. The transfer films include a carrier substrate having a releasable surface, a sacrificial template layer applied to the releasable surface of the carrier substrate and having a non-planar structured surface, and a thermally stable backfill layer applied to the non-planar structured surface of the sacrificial template layer. The sacrificial template layer is capable of being removed from the backfill layer, such as via pyrolysis, while leaving the structured surface of the backfill layer substantially intact.