摘要:
Elastic composite laminates are disclosed. The laminates include an elastic member bonded to at least one facing material. In accordance with the present disclosure, an adhesive composition is coextruded with an elastomeric material to form the elastic member. In this manner, the elastic member can be bonded to the facing material in a stretched state without having to apply a separate adhesive layer between the two materials. In one embodiment, the elastic member can be bonded to the facing material according to a pattern that includes bonded areas and non-bonded areas.
摘要:
A high-density region-containing sheet having a high-density region and a low-density region, a sheet member produced by joining the high-density region of the high-density region-containing sheet to an elastic member, and a disposable diaper using the sheet member as its chassis are provided. A sheet in a soft state by imparting preheat is pressed between a pair of opposed shaping rolls and having a toothed region and rotatable. Thus, a high-density region-containing sheet where high-density regions and low-density regions are formed is produced. Such two high-density region-containing sheets are joined through an extended elastic member to form a projection/recess pattern. In such a way, a high-density region-containing sheet can be produced. A sheet member in which at least one of two sheets is a high-density region-containing sheet, the high-density regions are joined through an extended elastic member, and a projection/recess pattern can be formed when the elastic member is contracted is produced.
摘要:
The invention is a garment that is made from an elastic and puncture resistant material that provides protection to the wearer against shark attacks. The garment includes at least one elastic base layer, a plurality of protective elements that overlap each other to form a protective layer, and a fabric layer to join the elastic material and the protective element against each other. The protective elements are rigid, but configured in such a way to maintain flexibility in the overall garment.
摘要:
Anti-tack additives for elastic fibers and methods of preparing the same are included. The elastic fibers include a substituted cellulose additive.
摘要:
Wallboard tapes having flexibility and elasticity are provided comprising a nonwoven mat or from at least 50% to 90% rigid fibers and no more than 50% to 10% of flexible fibers. The preferred tapes are comprised of glass fiber as the rigid fiber and polyester fiber as the flexible fiber.
摘要:
Multilayer meltblown composites, articles made therefrom, and methods for making same. The meltblown composite can include a first meltblown layer comprising one or more resins having an Ultimate Elongation (UE) of from about 50% to about 250%, as measured according to ASTM D412; and a second meltblown layer comprising a propylene-α-olefin copolymer having an ethylene content of about 5 wt % to about 20 wt %; a MFR (ASTM-1238D, 2.16 kg, 230° C.) of about 10 g/10 min to about 30 g/10 min; and a heat of fusion of 75 J/g or less.
摘要:
A stretchable laminate, a process of making a stretchable laminate and a disposable absorbent article that includes a stretchable laminate are disclosed. The stretchable laminate includes a nonwoven web and a web of elastomeric material. The nonwoven web includes two layers of spunbond fibers and one layer of meltblown fibers. Some of the meltblown fibers are present in the interstices formed by the spunbond fibers of one of the layers. As a result of activation of the stretchable laminate, the nonwoven web has a Residual Maximum Peak Force of at least 0.3 N/cm.
摘要:
Disclosed is an absorbent article defining a longitudinal direction and a lateral direction perpendicular to the longitudinal direction, the absorbent article including an outercover, the outercover comprising a laminated material including two layers; an absorbent body disposed adjacent the outercover; and a graphic associated with the outercover, wherein the laminated material exhibits a Poisson's Ratio less than 1.0 at 4 percent longitudinal strain using ASTM-E132. The laminated material optimally exhibits a Poisson's Ratio less than 0.75 at 4 percent longitudinal strain using ASTM-E132. The laminated material more optimally exhibits a Poisson's Ratio less than 0.4 at 4 percent longitudinal strain using ASTM-E132.
摘要:
In one embodiment the invention is an article comprising at least two layers, a first or low crystallinity layer comprising a low crystallinity polymer and a second or high crystallinity layer comprising a high crystallinity polymer. The high crystallinity polymer has a melting point as determined by differential scanning calorimetry (DSC) that is about the same or within less than 25 C of the melting point of the low crystallinity polymer. The article is elongated at a temperature below the melting point of the low crystallinity polymer in at least one direction to an elongation of at least about 50% of its original length or width, to form a pre-stretched article. Preferably, the high crystallinity layer is capable of undergoing plastic deformation upon the elongation.
摘要:
The present invention is generally directed to adhesive compositions comprising selected ratios of crystalline and amorphous polymers. In some versions of the invention, polymers capable of existing in different configurations (e.g., a polymer such as polypropylene which can exist in an atactic, syndiotactic. or isotactic configuration) is used to prepare adhesives of the present invention. As an example, a selected amount of isotactic polypropylene is blended with a selected amount of atactic polypropylene to prepare an adhesive composition having one or more performance properties (e.g., bond strength) that are superior to the performance properties of a conventional hot-melt adhesive.