B29C2791/009

Flexible packaging structure with built-in tamper-evidence features and method for making same

A flexible packaging laminate has built-in opening/reclose and tamper-evidence features by forming the laminate from an outer structure joined in face-to-face relation to an inner structure. Score lines are formed in both structures to enable an opening to be formed through the laminate by lifting a flap or the like out of the plane of the laminate. The score line through the outer structure defines a larger opening than the score line through the inner structure, such that a marginal region of the outer structure extends beyond the edge of the opening portion of the inner structure. A pressure-sensitive adhesive is used to re-adhere the marginal region to an underlying surface of the inner structure adjacent the opening through the laminate. The outer score line includes at least one tear portion that is torn through upon initial opening, thus indicating the package has been at least partially opened.

THREE-DIMENSIONAL PRINTING METHODS FOR REDUCING BUBBLES BY DE-GASSING THROUGH BUILD PLATE

A method of forming a three-dimensional object includes providing a carrier and an optically transparent member having a build surface. The carrier and the build surface define a build region therebetween. The method further includes filling said build region with a polymerizable liquid; continuously or intermittently irradiating said build region with light through said optically transparent member to form a solid polymer from said polymerizable liquid; applying a reduced pressure and/or polymer inhibitor-enriched gas to the polymerizable liquid through the optically transparent member to thereby reduce a gas content of the polymerizable liquid; and continuously or intermittently advancing (e.g., sequentially or concurrently with said irradiating step) said carrier away from said build surface to form said three-dimensional object from said solid polymer.

Treated liquid crystal polymer resin sheet and resin multilayer substrate

A treated liquid crystal polymer resin sheet includes a main surface, a non-fiberized portion in which fibrous crystalline portions and a non-crystalline portion filling a gap between the crystalline portions are provided, and a fiberized portion in which the fibrous crystalline portions is exposed at the main surface with a gap between the crystalline portions that is unfilled.

ELECTROSPINNING DEVICE AND METHOD

A method of electrospinning (40) is provided, and an electrospinning device (1; 30). The method comprises (i) holding (41) a liquid comprising a polymer melt or a polymer solution in a container (2), (ii) letting out (42) a stream of the liquid from the container through at least one nozzle (3), (iii) creating (43) a voltage difference between the nozzle (3) and a collecting surface (4), (iv) collecting (44) electro spun material coming from the nozzle (3) so as to form a fibrous structure (8) on the collecting surface (4), and (v) directing (45) a laser beam (13) towards the collecting surface (4) so as to locally remove a part of the fibrous structure (8).

FLEXIBLE PACKAGING STRUCTURE WITH BUILT-IN TAMPER-EVIDENCE FEATURES AND METHOD FOR MAKING SAME
20200361135 · 2020-11-19 ·

A flexible packaging laminate has built-in opening/reclose and tam per-evidence features by forming the laminate from an outer structure joined in face-to-face relation to an inner structure. Score lines are formed in both structures to enable an opening to be formed through the laminate by lifting a flap or the like out of the plane of the laminate. The score line through the outer structure defines a larger opening than the score line through the inner structure, such that a marginal region of the outer structure extends beyond the edge of the opening portion of the inner structure. A pressure-sensitive adhesive is used to re-adhere the marginal region to an underlying surface of the inner structure adjacent the opening through the laminate. The outer score line includes at least one tear portion that is torn through upon initial opening, thus indicating the package has been at least partially opened.

FLEXIBLE PACKAGING STRUCTURE WITH BUILT-IN TAMPER-EVIDENCE FEATURES AND METHOD FOR MAKING SAME
20200353669 · 2020-11-12 ·

A flexible packaging laminate has built-in opening/reclose and tam per-evidence features by forming the laminate from an outer structure joined in face-to-face relation to an inner structure. Score lines are formed in both structures to enable an opening to be formed through the laminate by lifting a flap or the like out of the plane of the laminate. The score line through the outer structure defines a larger opening than the score line through the inner structure, such that a marginal region of the outer structure extends beyond the edge of the opening portion of the inner structure. A pressure-sensitive adhesive is used to re-adhere the marginal region to an underlying surface of the inner structure adjacent the opening through the laminate. The outer score line includes at least one tab positioned within a heat seal region of the laminate.

LASER PROCESSING METHOD FOR PLASTIC FILM, AND PLASTIC FILM
20200353563 · 2020-11-12 · ·

A laser processing method is disclosed which is capable of easily reducing contamination on a plastic film surface, and also capable of cutting a plastic film in a free-form shape. A laser processing method includes a process of pulsing a laser beam L having a wavelength in the infrared region from a laser beam source 1 and causing a plastic film F to be irradiated with the laser beam L to cut the plastic film. The peak energy density of the laser beam with which the plastic film is irradiated is 70 J/cm.sup.2 or more and 270 J/cm.sup.2 or less.

Three-dimensional printing methods for reducing bubbles by de-gassing through build plate

A method and an apparatus of forming a three-dimensional object includes providing a carrier and an optically transparent member having a build surface. The carrier and the build surface define a build region therebetween. The method further includes filling said build region with a polymerizable liquid; continuously or intermittently irradiating said build region with light through said optically transparent member to form a solid polymer from said polymerizable liquid; applying a reduced pressure and/or polymer inhibitor-enriched gas to the polymerizable liquid through the optically transparent member to thereby reduce a gas content of the polymerizable liquid; and continuously or intermittently advancing (e.g., sequentially or concurrently with said irradiating step) said carrier away from said build surface to form said three-dimensional object from said solid polymer.

Method and apparatus for repairing a component constructed in multiple layers from a layer composite material

A method for repairing a component constructed in multiple layers from a layer composite material comprises a step of removing material of the layer composite material of the component in the region of damage to the component in order to form a scarfed cutout, such that a scarfed peripheral contour formed from a plurality of layers of the component is formed. Furthermore, fiber-reinforced plastic strips, which exhibit a curable plastic material in an uncured state, are applied in layers in the cutout in order to create a replacement-structure semifinished product that is complementary to and butts against the scarfed peripheral contour of the component. In a further step, the curable plastic material contained in the fiber-reinforced plastic strips is cured in order to create a replacement structure and for joining the replacement structure to the component.

REPAIR SYSTEM AND METHOD OF REPAIRING A SUBSTRATE

A repair system includes a scanning system configured for determining a contour of a void surface. The repair system also includes an additive manufacturing system configured for sequentially printing a plurality of individual layers each disposed on one another adjacent the void surface according to the contour. A method of repairing a substrate having a damaged portion defining a void and having the void surface is also disclosed.