6 results about "Manila hemp" patented technology

The invention relates to the field of electrical paper raw materials, and discloses a superfine low-loss electronic fiber as well as a preparation method and application thereof. According to the invention, the fiber raw material is prepared by the preparation method aiming at the gossypium hirsutum, and the fiber width of the fiber raw material is finer than that of common sisal hemp pulp fiber, Manila hemp pulp fiber and Chinese alpine rush pulp fiber, the strength is higher, the liquid absorption property is better, and the loss of the electrolytic capacitor diaphragm is more favorably reduced; after cooking, acid and ultrasonic waves are adopted to treat the slurry in a synergetic mode, dissolution of metal impurities in the slurry can be greatly increased, then the dissolved impurities are fixed through a metal chelating agent, readsorption is prevented, and the content of the metal impurities in the slurry can be effectively reduced after washing. The fiber prepared by the method is superfine, low in loss, high in strength and high in liquid absorbency, and is not only suitable for manufacturing a low-voltage electrolytic capacitor diaphragm, but also suitable for manufacturing a high-voltage electrolytic capacitor diaphragm.

The invention belongs to the technical field of papermaking, and particularly relates to multilayer anti-counterfeiting medium frame paper and a preparation method thereof. The invention aims to solve the problems of poor interlayer bonding force and interface separation risk of the current anti-counterfeiting paper. Raw paper is prepared in three layers through a multi-layer composite technology, the first layer and the third layer use outer layer paper pulp, the second layer uses inner layer paper pulp, and the safety line is embedded into the second layer. Wherein the inner-layer paper pulp comprises Manila hemp pulp, polyvinyl alcohol fibers and low-melting-point hot melting fibers; the outer-layer paper pulp comprises short velveteen fibers and high-melting-point hot melting fibers. Wet raw paper prepared by a multi-layer compounding process is subjected to squeezing compounding and step-by-step drying to obtain raw paper, and the raw paper is further coated with a composite coating and then subjected to hot press polishing treatment to obtain the multi-layer anti-counterfeiting medium frame paper. The multilayer anti-counterfeiting medium frame paper prepared by the method is good in interlayer binding force, excellent in watermark keeping effect and good in anti-counterfeiting compatibility.

The invention discloses a Shangri-La curtain fabric made of natural materials and a preparation method of the Shangri-La curtain fabric, and particularly relates to the field of Shangri-La curtains. The natural material fabric is obtained by weaving one of the following five fiber raw materials in percentage by weight: a fiber raw material I: 70% of paper fiber and 30% of Bengal hemp fiber; a fiber raw material II: 50% of linen fiber and 50% of Manila hemp fiber; the third fiber raw material comprises 80% of linen fiber and 20% of ramie fiber and polyester cotton blended fiber; a fourth fiber raw material: 70% of paper fiber and 30% of ramie fiber; and a fiber raw material V: 100% of rose-bengal jute fibers. Sacrificial filaments with a shape memory effect or a strain hardening effect are introduced into a fiber system of a natural material blade strip, the sacrificial filaments, ground yarns and surface yarns form an integrated laminated structure, crack propagation and interface stripping are actively inhibited in the service process, and therefore the anti-fatigue capacity of the structure and the interface is improved.

There is provided an aerosol-generating article (10) (100) (1000) comprising: an aerosol-generating substrate (12) (112) (1004); a downstream element (42) (150) (1008) disposed downstream of and axially aligned with the aerosol-generating substrate (12) (112) (1004), the downstream element comprising a cellulosic filter material. The fiber material comprises a plurality of regenerated cellulose fibers selected from one or more of viscose fibers, modal fibers, lyocell fibers and viscose rayon fibers; the natural fibers are selected from one or more of linen fibers, hemp fibers, jute fibers, kenaf fibers, ramie fibers, Manila hemp fibers, New Zealand hemp fibers, sisal fibers, coconut fibers, cotton fibers and kapok fibers. The cellulosic fiber material further includes an additive coating applied to the plurality of regenerated cellulose or natural fibers, the additive coating comprising at least 5% by dry weight of exogenous lignin.

The present application belongs to the technical field of papermaking, and particularly relates to a multi-layer anti-counterfeiting medium frame paper and a preparation method thereof. The present application aims to solve the problem of poor interlayer bonding force of the current anti-counterfeiting paper and the risk of interface separation. The present application prepares a base paper in three layers through a multi-layer composite process, uses outer layer pulp for the first layer and the third layer, uses inner layer pulp for the second layer, and embeds a security line in the second layer. The inner layer pulp comprises manila hemp pulp, polyvinyl alcohol fiber and low-melting point hot melt fiber; and the outer layer pulp comprises short cotton flock fiber and high-melting point hot melt fiber. The wet base paper prepared through the multi-layer composite process is subjected to press compounding and step drying to obtain the base paper, and is further coated with a composite coating and subjected to hot calendering to obtain the multi-layer anti-counterfeiting medium frame paper. The multi-layer anti-counterfeiting medium frame paper prepared by the present application has good interlayer bonding force, excellent water mark retention effect and good anti-counterfeiting compatibility.

This invention discloses a carbon fiber-containing paper cone, its preparation method, and its application. The carbon fiber-containing paper cone of this invention, by weight, comprises the following components: 30-50 parts bleached sulfate wood pulp, 10-30 parts Manila hemp pulp, 10-30 parts cotton pulp, 10-30 parts carbon fiber, and 5-30 parts polyvinyl alcohol fiber. The preparation method of the carbon fiber-containing paper cone of this invention is simple and convenient. The resulting carbon fiber-containing paper cone has the characteristics of low density and high modulus. Increasing the amount of carbon fiber added improves the bonding performance between carbon fiber and other fibers while retaining the mechanical properties of carbon fiber. When applied to loudspeakers, it can expand the speaker's vibration frequency and simultaneously achieve a higher sound pressure level.