摘要:
The present invention relates to the use of a polysaccharide adhesive containing cold water-soluble or cold water-swelling, covalently cross-linked starch as a binder together with a foam generator for producing an adhesive foam.
摘要:
The present invention relates to a method of forming a moulded fibrous product, comprising the steps of foaming an aqueous suspension of natural fibres, optionally in combination with synthetic fibres, to provide a first fibrous foam, a surfactant may be added to aid the foaming, feeding the fibrous foam into a mould, mechanically withdrawing a part of the water contained in the foam to produce a solidified, moist fibrous composition, and evaporating water from the solidified, moist fibrous composition to produce a dry fibrous product.
摘要:
The present invention concerns a process for producing a thermoformable porous web using a mixture of cellulosic fibres and one or more thermoplastic materials, particularly by foam forming said mixture into a composite foam, and applying the foam into one or more layers on a support to obtain a porous pre-form web. The thus produced porous composite web can be further processed by compression moulding to give a rigid high-strength composite structure, which is suitable for use in producing, e.g. panels or plates, packages or hygiene products, insulators or filters, or printed intelligence, electronics or microcellulose products.
摘要:
An article for the paper industry and for bookbinding, of the type comprising a support (3) of stiffening material and a padding (4) of foam material, wherein said foam material consists of a foam based on natural rubber latex and synthetic rubber latex, alone or in a mixture. Compared with products of the prior art in the field, the article for the paper industry and for bookbinding according to the invention offers the advantage of having a simpler structure, due in particular to the lack of a need to provide a sheet of paper, with the specific purpose of retaining the glue for fixing of the outer covering of this article.
摘要:
A method for applying a softening composition to a paper web of a tissue product is provided. The softening composition is applied primarily to the elevated regions of the tissue product. The application of the softening composition in this manner allows for the use of hydrophobic softeners, such as amino-functionalized polysiloxanes, in an amount of from about 0.05% to about 5% by weight of the tissue product while maintaining a Wet Out Time of less than about 10 seconds.
摘要:
The invention relates to a method for producing a preferably board-shaped support material (18), especially a laminated board, HDF board, MDF board and/or chip board, that is coated with a resin film. The inventive method comprises the following steps: producing a foam on the basis of an aqueous resin system with fillers, which is configured with regard to its foam stability in such a way that the foam fixes the fillers, applying a layer (14) of the foam to a preferably porous, further preferred web-shaped substrate material (10), especially paper or a nonwoven, drying the coated substrate material, and pressing the coated substrate material, dried to a residual moisture, onto the support material (18), especially with the substrate material side onto the support material (18).
摘要:
A method for applying a foam to a paper web is provided. Specifically, a foam is first formed from a liquid-based composition and a gas, such as air. Once formed, the foam is applied by a foam applicator to the web. In one embodiment, for example, the foam applicator applies the foam without substantially contacting the web. When applied with the foam, the web typically has a solids consistency less than about 95% by weight of the web. In some embodiments, one or more vacuum slots can be utilized in conjunction with the foam applicator to facilitate uniform application of the foam to the paper web.