An activatable wrap material includes a film material a first side and a second side opposite the first side. The wrap material includes a plurality of protrusions extending outward from the first side of the wrap material and oriented in a pattern across the first side of the wrap material and a plurality of planar portions defined within the first side of the wrap material and throughout the plurality of protrusions. The wrap material exhibits an average peel adhesion force, when activated against a surface, between about 1.50 g/in to about 3.25 g/in. The wrap material further exhibits an average roll unwind force, when wound on a roll, between about 1.50 g/in to about 5.0 g/in. The wrap material also exhibits an average blocking force, when contacting itself, between about 0.4 g/in.sup.2 to about 1.30 g/in.sup.2.

The present invention relates generally to a protective wrap and a protective envelope or pouch: made therefrom, as well as the apparatus and: process for forming such wraps and envelopes. Water-based heat-expandable adhesives (WBHEA) which include a plurality of heat-expandable microspheres are disposed in a pattern between, web substrates on a continuous, high speed manufacturing line to produce padded, insulated products: useful as envelopes, mailers and other protective packaging.

The present invention relates generally to a protective wrap and a protective envelope or pouch: made therefrom, as well as the apparatus and: process for forming such wraps and envelopes. Water-based heat-expandable adhesives (WBHEA) which include a plurality of heat-expandable microspheres are disposed in a pattern between, web substrates on a continuous, high speed manufacturing line to produce padded, insulated products: useful as envelopes, mailers and other protective packaging.

A system and method for forming reinforced packages. The method can comprise forming an attached web by adhering a construct to a web of material, and moving the attached web in a downstream direction through at least a web edge forming assembly. The moving the attached web can comprise moving the construct with the web of material. The method further can include at least partially forming a folded web by folding at least a portion of the web of material as the attached web moves through the web folding assembly and forming a reinforced package comprising a liner and the construct by separating the liner from a remainder of the folded web. The construct is adhered to the liner.

A system and method for forming reinforced packages. The method can comprise forming an attached web by adhering a construct to a web of material, and moving the attached web in a downstream direction through at least a web edge forming assembly. The moving the attached web can comprise moving the construct with the web of material. The method further can include at least partially forming a folded web by folding at least a portion of the web of material as the attached web moves through the web folding assembly and forming a reinforced package comprising a liner and the construct by separating the liner from a remainder of the folded web. The construct is adhered to the liner.

An object to be achieved by the present invention is to provide a gas barrier film having excellent acid resistance, transparency, and gas barrier properties. The gas barrier laminated body of the present invention is a laminate, in which an inorganic thin-film layer is laminated onto at least one of surfaces of a polymer substrate, and the inorganic thin-film layer mainly contains Al and Si, and a ratio of an Al content amount between before and after treatment of immersing the laminate into aqueous solution of hydrochloric acid that has concentration of 1 mol/L for one hour satisfies a formula of (Al Content Amount After Treatment)/(Al Content Amount Before Treatment)10075.

An object to be achieved by the present invention is to provide a gas barrier film having excellent acid resistance, transparency, and gas barrier properties. The gas barrier laminated body of the present invention is a laminate, in which an inorganic thin-film layer is laminated onto at least one of surfaces of a polymer substrate, and the inorganic thin-film layer mainly contains Al and Si, and a ratio of an Al content amount between before and after treatment of immersing the laminate into aqueous solution of hydrochloric acid that has concentration of 1 mol/L for one hour satisfies a formula of (Al Content Amount After Treatment)/(Al Content Amount Before Treatment)10075.

Improved object wrapping materials exhibiting a number of beneficial properties to overcome prior deficiencies are provided. Such properties include the inclusion of a separation interface overlay that allows for greater rigidity at the leading and trailing edges of such wraps. Also, the inclusion of shear-reducing wrap material portions is described, as well as recoil reduction structures within the leading edge regions. Furthermore, core adhesive additions allow for greater resiliency to the base wrap material as it unwinds therefrom, reducing potential waste wrap products by permitting greater amounts of wrap materials in use. Other considerations include the ability, through proper configuration designs, to position a wrap separation indicator within a certain range of distances from the trailing edge, thereby providing greater reliability of wrap application device disengagement during wrap application. Such benefits are thus supplied individually and in tandem for improved versatility and utility of such wrap materials.

Improved object wrapping materials exhibiting a number of beneficial properties to overcome prior deficiencies are provided. Such properties include the inclusion of a separation interface overlay that allows for greater rigidity at the leading and trailing edges of such wraps. Also, the inclusion of shear-reducing wrap material portions is described, as well as recoil reduction structures within the leading edge regions. Furthermore, core adhesive additions allow for greater resiliency to the base wrap material as it unwinds therefrom, reducing potential waste wrap products by permitting greater amounts of wrap materials in use. Other considerations include the ability, through proper configuration designs, to position a wrap separation indicator within a certain range of distances from the trailing edge, thereby providing greater reliability of wrap application device disengagement during wrap application. Such benefits are thus supplied individually and in tandem for improved versatility and utility of such wrap materials.

Provided is a multilayer film for a disposable body warmer outer bag, and a disposable body warmer, which are excellent in gas barrier property that inhibits permeation of oxygen gas, water vapor and the like, which can allow swelling due to hydrogen gas generated during a storage period to be prevented, and which are excellent in seal strength, impact resistance and weather resistance. A disposable body warmer outer bag formed from a multilayer film comprising a first barrier layer (10) and a second barrier layer (20), wherein the first barrier layer (10) and the second barrier layer (20) consist of a polyvinylidene chloride layer (12) or a polyvinylidene chloride layer (22) obtained by coating at least one surface (upper portion in FIG. 1) of a heat-resistant resin substrate (11) or a heat-resistant resin substrate (21) with polyvinylidene chloride.