Disclosed herein are methods for making asymmetric laminate structures and methods for reducing bow in asymmetric laminate structures, the methods comprising subjecting the laminate structures to at least one thermal cycle comprising cooling the laminate structures to a first temperature near or below room temperature and heating the laminate structures to a second temperature near or below the lamination temperature. Also disclosed herein are laminate structures made according to such methods.

The present disclosure relates to assembling elastic laminates that may be used to make absorbent article components. Methods herein may include an anvil adapted to rotate about an axis of rotation, wherein first and second spreader mechanisms adjacent the anvil roll are axially and angularly displaced from each other with respect to the axis of rotation. During the assembly process, a substrate may be advanced in a machine direction onto the rotating anvil. The first spreader mechanism stretches a first elastic material in the cross direction, and the second spreader mechanism stretches a second elastic material in the cross direction. The stretched first and second elastic materials advance from the spreader mechanisms and onto the substrate on the anvil roll. The combined and elastic materials may then be ultrasonically bonded together on the anvil to form at least one elastic laminate.

The area of a spacer that is to be provided between the adjacent substrates in a laminate including a plurality of substrates to keep the adjacent substrates apart from each other is smaller than those of the stacked substrates. When pressure is released to bring the laminate obtained by providing the spacers between the substrates from a pressed state in which 0.60 MPa of pressure is applied to the laminate in the stacking direction into a non-pressed state, an amount of change ΔW in thickness per spacer that is calculated from a change in the thickness of the laminate due to the release of pressure is 30 μm or less.

Elasticated materials and articles comprising elasticated materials are disclosed. In an embodiment, an elasticated material may comprise a first layer, second layer, an elastomeric strand disposed between the first and second layers, and a plurality of bonds bonding the first and second layers together. The strand may have straight and arcuate portions. The bonds may comprise a first and a second bond and may be disposed on opposite sides of the strand and separated a distance less than an un-tensioned diameter of the strand. The first and second bonds may be disposed along a strand straight portion. The plurality of bonds may further comprise a third and fourth bond which are longitudinally adjacent and disposed on opposite sides of the strand and spaced apart a distance greater than the un-tensioned diameter of the strand. The third and fourth bonds may be disposed along a strand arcuate portion.

A manufacturing method including a first conveying step of conveying the sheet in a lateral or oblique lateral direction along a sheet pass line below the discharge port; a receiving step of receiving a tip part of the film raw material with the sheet on the sheet pass line, the tip part being discharged and hanging down from the discharge port; a second conveying step of conveying the sheet and the film raw material after the tip part overlaps the sheet on the sheet pass line, the second conveying step conveying the sheet and the film raw material in a mutually overlapping state along the sheet pass line; and an introducing step of introducing the sheet and the film raw material in the mutually overlapping state to the joining part from the sheet pass line.

The disclosure provides a laminating device, a laminating method thereof, a flexible display module and a display device. The laminating device is configured to laminate layers of the flexible display module. The laminating device includes a stress applying component, configured to control the first laminating base platform and the second laminating base platform to laminate in a lamination direction, and control at least one of the first laminating base platform and the second laminating base platform to be deformed in a direction perpendicular to the lamination direction during lamination, such that the first laminate layer, that has been laminated, in an unfolded state is provided with a pre-applied stress, wherein a direction of the pre-applied stress is opposite to a direction of a stress borne by the first laminate layer in a folded state.

A method for manufacturing an optical article including the following steps: a. providing a first substrate with a main surface, b. depositing a second substrate on the main surface with an adhesive layer so that the space between the first substrate and second substrate is filled by the adhesive layer, c. curing the adhesive layer to induce a polymerization of the adhesive layer, wherein a tension step takes place after steps a. and b., and before step c., the tension step including applying symmetrically a tension, preferentially with a central symmetry, preferentially a radial isotropic tension or an ortho-distributed symmetrical tension, on the edges of the second substrate sensibly in a tension plan parallel to a plan representative of the main surface.

A method and an apparatus are disclosed for manufacturing layered tapes and a layered tape arrangement including a pair of layered tapes wound together. Each of the layered tapes is individually unbalanced as far as a number of layers in a cross direction, but the resulting tape arrangement is nevertheless balanced, allowing for a balanced rolling of the layered tapes in a coil, or balanced folding of the layered tape arrangement into a ply stack.

The methods herein relate to assembling an elastic laminate with a first elastic material and a second elastic material bonded between first and second substrates. During assembly, an elastic laminate may be formed by positioning the first and second substrates in contact with stretched central regions of the first and second elastic materials. The elastic laminates may include two or more bonding regions that may be defined by the various layers or components of the elastic laminate that are laminated or stacked relative to each other. In some configurations, a first plurality of ultrasonic bonds are applied to the elastic laminate to define a first bond density in the first bonding region, and a second plurality of ultrasonic bonds are applied to the elastic laminate to define a second bond density in the second bonding region, wherein the second bond density is not equal to the first bond density.

A composite oil pan for a work vehicle engine and a method of forming the composite engine oil pan include forming a sheet of metal into a first pan and open molding a fiber-reinforced polymer resin onto the first pan forming a second pan. The first pan has a first bottom wall and first peripheral walls extending from edges of the first bottom wall to define a sump, the first peripheral walls terminating in a first peripheral flange. The second pan has a second bottom wall and second peripheral walls abutting the first bottom wall and the first peripheral walls, the second peripheral walls terminating in a second peripheral flange. The first pan defines a thin metal structure with an inner surface extending across the first bottom wall, first peripheral walls and first peripheral flange; the second pan reinforces the first pan without abutting the inner surface.