The present disclosure relates to a method for manufacturing a microneedle containing a coating part on a needle tip and an apparatus used for the method. When a microneedle is manufactured using the coating method and apparatus according to the present disclosure, a coating part in which a target material is impregnated can be easily inserted into skin and effective dissolution is possible. Further, the target material is allowed to show excellent skin permeability with the dissolution of the coating part of the microneedle manufactured according to the present disclosure, thereby a quantitative amount of target material can be effectively delivered into the skin.

A method for producing a rubber composition include a mixing step, a drying step, and a dispersion step. In the mixing step, an aqueous solution that includes at least one of oxycellulose fibers and cellulose nanofibers is mixed with rubber latex to obtain a first mixture. In the drying step, the first mixture is dried to obtain a second mixture. In the dispersion step, the second mixture is tight-milled using an open roll to obtain a rubber composition. The rubber composition does not include an aggregate that includes at least one of the oxycellulose fibers and the cellulose nanofibers, and has a diameter of 0.1 mm or more.

Disclosed herein, amongst other things, is a molded article, such as a preform that is blow moldable to form a container, and a related method of forming and recycling a container. The structure and steps includes injection molding a molded article having tubular body.

A process for sealing a first water-soluble polyvinylalcohol film to a second water-soluble polyvinylalcohol film.

A method for preparing a sacrificial support material for use in printing a three-dimensional (3D) article includes providing a water-soluble thermoplastic polymer composite including a water-soluble thermoplastic polyethylene oxide graft polymer having a polyethylene oxide polymer backbone, and from about 0.05% to about 10% by weight of the polyethylene oxide polymer backbone of at least one polar vinyl monomer grafted to the polyethylene oxide polymer backbone. One or more nanoscopic particulate processing aids may be uniformly dispersed in the graft polymer in an amount of from about 0.05% to about 10% by weight of the water-soluble thermoplastic polymer composite. The water-soluble thermoplastic polymer composite may have a viscosity in the range of about 100 to about 10,000 Pa-sec. The method may also include forming the water-soluble thermoplastic polymer composite into the 3D printable sacrificial support material.

Three dimensionally printed aesthetic particles that are water dispersible are provided. Each particle has a first side and a second side, while the first side has a length from 0.2 mm to 20 mm. Further, such particles have at least two voids, while the at least two voids are each a through hole extending between the first side and the second side.

Three dimensionally printed aesthetic particles that are water dispersible are provided. Each particle has a first side and an opposing second side, while the first side has a length from 0.2 mm to 20 mm. Further, such particle comprises at least one wall separating a first void and a second void contained between the first side and the second side, while the wall has a width ranging from 0.01 mm to 5 mm as measured in a cross sectional plane.

A compression moulding machine comprises: an extrusion unit configured to extrude a rod of pasty polymeric material; a cutting element, configured to portion the rod into individual charges; a rotary carousel, including a plurality of moulds, each mould being configured to receive a respective charge and to form a corresponding object from the charge; a feeder, configured to convey each charge to a respective mould at a feed position; an inspecting device, configured to capture inspection data, representing a composition of the rod or of the charges.

Thermoformed articles comprising a film thermoformed to be in the form of a pouch defining an interior pouch volume, the film comprising a mixture of a polyvinyl alcohol resin and a plasticizer, wherein the plasticizer is provided in an amount in a range of about 5 to about 30 weight parts, based on 100 weight parts of total polyvinyl alcohol resin; wherein the thermoformed film in the form of a pouch defining an interior pouch volume is characterized by a draw ratio in a range of about 2.3 to about 2.9; the article is characterized by a release time of at least 30 seconds when formed into a sealed packet and tested in accordance with the Liquid Release Test; and the article is characterized by a residue value of at most 9%, as determined by the Residue Test.

The present disclosure relates to a method for producing a container for washing and/or cleaning agents from a water-soluble material and to a container that is obtained in accordance with the method as contemplated herein.