B29C2791/009

Method for Producing a Mold Element for Producing Micro-Arrays, and Mold Element
20230356455 · 2023-11-09 ·

The invention relates to a method for producing a mold element for producing micro-arrays. First, a planar base element, in particular in the form of a film, is provided. Recesses are made in, in particular embossed into, an upper face of the element. The recesses are opened on a lower face of the base element in particular by using laser radiation. The invention also relates in particular to a mold element produced by means of this method, which mold element has recesses like the base element. Each of the recesses has openings in the lower face of the base element.

Flexible packaging structure with a built-in opening and reclose feature

A flexible packaging laminate is formed to have a built-in opening and reclose feature by forming the laminate as a two-part structure having an outer structure joined in face-to-face relation with an inner structure. Score lines are formed in both structures to enable an opening to be formed through the laminate by lifting an opening portion (e.g., a flap or the like) of the two structures 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.

Electrospinning 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).

Method for manufacturing hollow needling implement, device for manufacturing hollow needling implement, and hollow needling implement
11433224 · 2022-09-06 · ·

A method for manufacturing a hollow protruding implement (1) including a fine hollow protrusion (3) having an opening (3h) of the present invention includes a protrusion forming step of inserting a projecting mold part (11) into a base material sheet (2A) from one face (2D) side thereof, the base material sheet containing a thermoplastic resin, thereby forming a non-penetrated hollow protrusion (3) projecting from another face (2U) side of the base material sheet (2A). Subsequently, an opening forming step is performed in which an opening (3h) that penetrates the hollow protrusion (3) is formed by using a contactless opening forming means disposed on the other face (2U) side of the base material sheet (2A).

Vehicle interior material manufacturing apparatus and method for manufacturing vehicle interior material

A vehicle interior material manufacturing apparatus includes a preheater for preheating a raw fabric, a mover for moving the preheated raw fabric and including a stretching jig movable back and forth, a first mold into which the preheated raw fabric is inserted by the mover, a second mold having an at least partially corresponding shape to the first mold, and an injection resin introduced into the second mold, wherein the first mold includes: a base member on which an embossed pattern to be transferred to the preheated raw fabric is formed, a vacuum hole through which the preheated raw fabric is adsorbed onto the base member, and a spring core protruding from the base member and contacting at least a portion of the preheated raw fabric inserted into the first mold.

ADDITIVE MANUFACTURING WITH IN SITU DEFECT DETECTION

A method for monitoring and analyzing an additive manufacturing process includes heating a melt zone to fuse an additive media with an active layer to build a part being manufactured based on a part design model, capturing raw melt data of the melt zone, and generating an active layer dataset that is spatially defined. The method may also include analyzing the active layer dataset with respect to a plurality of defect signatures within a defect signature library. The defect signature library may be predefined based on a machine learning processing of historical sensor datasets with corresponding ground truth datasets. The method may also include detecting a defect in the part based on the analysis of the active layer dataset with respect to a plurality of defect signatures, simultaneously with the energy source acting upon the active layer of the part for manufacturing of the part.

FLEXIBLE PACKAGING STRUCTURE WITH A BUILT-IN OPENING AND RECLOSE FEATURE

A flexible packaging laminate is formed to have a built-in opening and reclose feature by forming the laminate as a two-part structure having an outer structure joined in face-to-face relation with an inner structure. Score lines are formed in both structures to enable an opening to be formed through the laminate by lifting an opening portion (e.g., a flap or the like) of the two structures 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.

LASER-MARKED MEDICAL COMPONENTS FROM ELASTOMERS
20210330422 · 2021-10-28 ·

A medical device component is provided. The medical device component may include a body having a first surface being at least partially formed from a markable material having a first color, the markable material having a characteristic that an area exposed to laser irradiation of a predetermined wavelength of ultraviolet light changes to a second color different from the first color; a film covering at least a portion of the first surface of the body, the film having a transmittance at the predetermined wavelength of ultraviolet light of at least 5%; and a visible mark on the markable material at the first surface of the body covered by the film. The visible mark may include one or more areas of the markable material at the first surface having the second color. Methods of manufacturing the medical device component are also provided.

Methods and systems for changing a refractive property of an implantable intraocular lens

A method of altering a refractive property of a crosslinked acrylic polymer material by irradiating the material with a high energy pulsed laser beam to change its refractive index. The method is used to alter the refractive property, and hence the optical power, of an implantable intraocular lens after implantation in the patient's eye. In some examples, the wavelength of the laser beam is in the far red and near IR range and the light is absorbed by the crosslinked acrylic polymer via two-photon absorption at high laser pulse energy. The method also includes designing laser beam scan patterns that compensate for effects of multiphone absorption such as a shift in the depth of the laser pulse absorption location, and compensate for effects caused by high laser pulse energy such as thermal lensing. The method can be used to form a Fresnel lens in the optical zone.

Flexible packaging structure with built-in tamper-evidence features and method for making same
11148348 · 2021-10-19 · ·

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 tab positioned within a heat seal region of the laminate.