Calendered films or sheets obtained from a composition comprising at least one polyester which has the L* color value of greater than 90 and comprises terephthalic acid residues, optional aromatic and/or aliphatic dicarboxylic acid residues having up to 20 carbon atoms; glycol component comprising 2,2,4,4-tetramethyl-1,3-cyclobutanediol residues and ethylene glycol residues; a catalyst/stabilizer component which comprises titanium atoms, manganese atoms, phosphorous atoms; fillers; release additives and does not comprises tin atoms. Calendered films or sheets can be used in a wide range of applications including packaging, pool liners, graphic arts, transaction cards, security cards and others.

Calendered films or sheets obtained from a composition comprising at least one polyester which has the L* color value of greater than 90 and comprises terephthalic acid residues, optional aromatic and/or aliphatic dicarboxylic acid residues having up to 20 carbon atoms; glycol component comprising 2,2,4,4-tetramethyl-1,3-cyclobutanediol residues and ethylene glycol residues; a catalyst/stabilizer component which comprises titanium atoms, manganese atoms, phosphorous atoms; fillers; release additives and does not comprises tin atoms. Calendered films or sheets can be used in a wide range of applications including packaging, pool liners, graphic arts, transaction cards, security cards and others.

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.

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.

A method includes attaching a clip array to opposing edges of a polymer thin film, the clip array having a plurality of first clips slidably disposed on a first track located proximate to a first edge of the polymer thin film and a plurality of second clips slidably disposed on a second track located proximate to a second edge of the polymer thin film, applying a positive in-plane strain to the polymer thin film along a transverse direction by increasing a distance between the first and second clips, and decreasing an inter-clip spacing amongst the first clips and amongst the second clips along a machine direction while applying the in-plane strain to form an optically anisotropic polymer thin film. During stretching, a strain rate of the thin film may be decreased and/or a temperature of the thin film may be increased.

A method of manufacturing an optically anisotropic polymer thin film includes forming a composite structure that includes a polymer thin film and a high Poisson's ratio polymer thin film disposed directly over the polymer thin film, attaching a clip array to opposing edges of the composite, the clip array including a plurality of first clips slidably disposed on a first track located proximate to a first edge of the composite and a plurality of second clips slidably disposed on a second track located proximate to a second edge of the composite, applying a positive in-plane strain to the composite along a transverse direction by increasing a distance between the first clips and the second clips, and decreasing an inter-clip spacing amongst the first clips and amongst the second clips along a machine direction, wherein the high Poisson's ratio polymer thin film applies a negative in-plane strain to the polymer thin film along the machine.

A method and apparatus for producing elastic laminates wherein a first and a second elastic film are stretched in the transverse direction by respective spreader devices, and are applied on a transfer wheel which—in turn—applies the first and second elastic films on a non-woven web held on the outer cylindrical surface of an anvil wheel.

A method and apparatus for producing elastic laminates wherein a first and a second elastic film are stretched in the transverse direction by respective spreader devices, and are applied on a transfer wheel which—in turn—applies the first and second elastic films on a non-woven web held on the outer cylindrical surface of an anvil wheel.

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.

The present disclosure relates to elastic laminates and methods for assembling elastic laminates that may be used to make absorbent article components. Elastic laminates may include one or more reinforcement layers positioned between unstretched portions of elastic materials and substrates to which the elastic materials are bonded.