A surface covering element can have a rigid core. The rigid core can include at least one densified fiber batt. The rigid core can have a first surface and an opposed second surface that are spaced apart along a first axis. The rigid core can have a plurality of edges that define a periphery of the rigid core. The plurality of edges can include at least a first edge and an opposed second edge that are spaced along a second axis that is perpendicular to the first axis. The first edge can include a tongue, and the second edge can define a groove.

A carpet pad includes a top hook layer and a bottom anti-slip layer. An upper surface of the hook layer is provided with protruding monofilaments in a bent shape. Top ends of the protruding monofilaments are provided with bumps formed by melting/softening and then cooling the protruding monofilaments. The protruding monofilaments on the hook layer are heat-treated to make their top ends melted/softened into the small bumps. The heat-treated protruding monofilaments have a certain degree of curvature and inclination, and thus can firmly hook with various carpets above and provide a large friction force, in particular in a vertical direction. The length and density of the protruding monofilaments are reasonably designed to make the protruding monofilaments well hook and lock with the carpet above. In addition, the protruding monofilaments touch soft, and the bumps are not prickly.

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 multilayer self-healing polyester composite material and a method for its manufacture for lightweight application structures. The multi-layered self-healing polyester composite comprises a backing layer which is a textured polyester layer; a middle layer, a tufted pile of polyester fibers tufted on the backing layer; and an outer layer comprising a solid dense polyester layer that bonded to the middle layer. The solid dense polyester outer layer has self-healing properties. The outer surface layer of the self-healing polyester composite is created by a heating process of the tufted pile of polyester fibers. This process results in the formation of the solid dense polyester outer layer.

The present invention relates to the technical field of material processing and provides a method for making a metal material composite, including: contacting a first surface of a first plate with a second surface of a second plate; placing the first plate and the second plate in a recess in a circumferential direction of a first roller such that a third surface of the second plate contacts a bottom wall of the recess in a circumferential, the third surface being opposite the second surface, the first plate having a greater hardness than the second plate; and controlling a first roller and a second roller to rotate, thereby rolling to combine the first plate and the second plate into a composite plate, where a fourth surface of the first plate contacts a surface of the second roller and the fourth surface is opposite the first surface during the rolling. According to the method for making a metal material composite in the present invention, flashings and burr on the side edges of a composite plate are avoided by placing the first plate and the second plate in a recess for machining.

A cell phone frame, and a method for manufacturing the same, includes a composite plate. The composite plate encloses an accommodation space for accommodating the cell phone. The composite plate includes a first plate and a second plate, a first side surface of the first plate having striations. The first side surface of the second plate and the first side surface of the first plate are rolled to connect, and the striations of which adjacent ones have a pitch of 0.005 mm to 0.03 mm account for more than 90% of all the striations.

A method of manufacturing double-sided thermally-printable ballot stock is disclosed, comprising: receiving a first and a second input roll of paper having a thermo-sensitive ink layer and a base paper layer and emitting a first web; tension evening of the first and second web using festooning rollers; applying an adhesive in a liquid state using anilox rollers to the base paper layer of the first web; laminating the first web and the second web through laminating rollers, with the base paper layer of the first web contacting the base paper layer of the second web using the adhesive to create a laminated output web; heating the laminated output web to cure the adhesive in an oven while moving the laminated output web through the oven; and reducing a temperature of the applied liquid adhesive in the laminated output web.

A lamination film according to one implemented embodiment comprises: a base film; an elastic layer comprising polyether-block-amide; and a primer layer interposed between the base film and the elastic layer, and thus not only has flexibility but also has adhesiveness between heterogeneous films, thereby exhibiting folding durability

The present invention provides a composite plate, a composite plate roughening device, and a method for manufacturing a composite plate, and relates to the technical field of metal plate materials. The composite plate includes a first plate and a second plate, wherein a first side surface of the first plate is provided with striations, the first side surface of the second plate and the first side surface of the first plate are rolled to connect, and the striations of which adjacent ones have a pitch of 0.005 mm to 0.03 mm account for more than 90% of all the striations. For the composite plate described in the embodiments of the present invention, the first side surface of the first plate is roughened such that the first side surface of the first plate and/or the first side surface of the second plate is configured with striations, which increases an area of the first plate and the second plate subjected to rolling, whereby the composite plate produced by combining the first plate and the second plate has a higher bonding strength and thus a stronger bonding.

A stretch laminate for an absorbent article. The stretch laminate includes a nonwoven substrate and an elastomeric film joined to the nonwoven substrate by a plurality of bonds. These bonds may be ultrasonic bonds or some combination of mechanical bonds, including ultrasonic bonds. The plurality of bonds form a bond pattern including a plurality of bond site clusters. Each of the bond site clusters includes a first bond having a longest bond dimension (D) and a second bond adjacent to the first bond. The Bond Separation Angle between the first bond and the second bond is from 0? up to and including 35? and the Bond Separation Distance between the first and second bond is less than 2.1D. Further, the bond site clusters may have a cluster dimension of less than about 5 mm and/or a cluster separation distance of at least about 2.1D