62results about "Surfactants addition" patented technology

The invention discloses a cationic core-shell PHA nano-emulsion reinforcing agent as well as preparation and application thereof, and belongs to the technical field of papermaking chemicals. The problems that a traditional wet strength agent is poor in environmental protection property and difficult to recycle, and a conventional bio-based material needs high-temperature curing and is high in energy consumption are solved. According to the reinforcing agent, low-MFFT bio-based polyhydroxyalkanoate is used as a core, and a positive ion shell layer with strong positive charges is wrapped outside the core. The method has the core advantages that extra high-temperature curing is not needed, the film can be efficiently formed under the conventional 105 DEG C drying condition, and the energy consumption is remarkably reduced; meanwhile, high dry and wet strength and water resistance are achieved, the treated paper has excellent re-pulping recycling suitability, and the industrial pain point that traditional wet strength paper is difficult to recycle is solved.

The invention discloses an acid-neutral nano PHA paperboard reinforcing agent as well as preparation and application thereof, and belongs to the technical field of papermaking chemicals. The reinforcing agent is a bio-based nano water-based emulsion, and the core of the reinforcing agent is that a stable high-positive-charge nanoparticle interface is constructed under an acid-neutral window through the synergistic effect of polyphenol and an amine polymer. The environment-friendly wet strength agent solves the potential safety hazard of the traditional wet strength agent, and does not contain free formaldehyde and epichlorohydrin. The method has the outstanding advantages that the method is completely compatible with a modern papermaking acid-neutral process, and the defect that the similar bio-based technology needs to react under alkalinity is overcome; the adhesive is flexible to apply, can be efficiently used for wet end addition, or can be stably compounded with oxidized starch for surface sizing; the preparation method is simple, efficient and energy-saving, can realize excellent wet strength retention rate and dry strength improvement under the conditions of low addition amount and conventional industrial drying at 105 DEG C, and does not need extra high-temperature curing.

The invention discloses a water-based environment-friendly coating and local printing transfer paper thereof, and particularly relates to the technical field of water-based environment-friendly coatings. The water-based environment-friendly coating is prepared from a water-based epoxy ester dispersion, an organic silicon modified polyvinyl butyral emulsion, a gas-phase method aluminum oxide nano dispersion, a fluorocarbon surfactant, a self-crosslinking polyether thickening agent and a propylene glycol methyl ether acetate-water azeotropic quick-drying auxiliary agent. According to the coating, through cooperation of specific components and process control, the drying speed is remarkably increased, the surface drying time is shortened, meanwhile, shrinkage cavities are eliminated, the hardness of the coating is enhanced, and the edge transfer precision is improved. Corona treatment is adopted for the corresponding local printing transfer paper, gravure precise coating, infrared pre-drying and gradient hot air drying are matched, and finally clear separation and transfer of a coating are achieved through infrared laser scanning. The whole system is a water-based formula, is environment-friendly and safe, is suitable for the field of high-end printing, and has the comprehensive advantages of high drying speed, high precision, strong adhesive force, simplified process and the like.

The invention firstly provides a structure of environment-friendly bottomless paper type thermo-sensitive paper. The structure comprises a base material, and a thermo-sensitive coating and a silicone oil layer which are sequentially laminated on one surface of the base material, the thermosensitive coating comprises a color developing layer, a pre-coating layer and a bottom coating layer which are laminated in sequence, and the bottom coating layer is laminated on one surface of the base material; secondly, a coating system is provided, and a color developing agent comprises 4, 4 '-sulfonyl diphenol; the invention also provides a preparation method which is used for preparing the thermo-sensitive paper by adopting the structure and the coating system, and comprises the following steps: coating the color developing layer on the surface of the pre-coating layer by using curtain coating; a novel structure is designed, a basis is provided for the self-curling release performance of the thermo-sensitive paper, a coating system uses 4, 4 '-sulfonyldiphenol, so that the color saturation, the light resistance and the stability of the thermo-sensitive paper can be improved, the thermo-sensitive paper does not react with silicone oil, the release performance is improved, a curtain coating method is adopted based on the structure and the coating system, and the self-curling release performance of the thermo-sensitive paper is improved. And the coating uniformity, color development and other properties of the thermo-sensitive paper are effectively improved, and the environment-friendly thermo-sensitive paper which is fast in reaction, bright in color and high in definition during printing is integrally formed.

According to an example aspect of the present invention, there is provided a method comprising: in a mould, forming a multi-layered foamed fibrous structure from foamed fibrous compositions, wherein each of the foamed fibrous compositions comprises cellulosic fibres, water, air, and at least one foaming agent; dewatering the foamed fibrous structure; hot-pressing the dewatered structure, to obtain a moulded fibrous product, wherein said at least one foaming agent comprises at least one surface-active foaming agent and / or at least one polymeric foaming agent, and wherein at least one of the foamed fibrous compositions comprises a hydrophobic agent.

According to an example aspect of the present invention, there is provided a method comprising: in a mould, forming a multi-layered foamed fibrous structure from foamed fibrous compositions, wherein each of the foamed fibrous compositions comprises cellulosic fibres, water, air and a foaming agent; dewatering the foamed fibrous structure; hot-pressing the dewatered structure, to obtain a moulded multi-layered fibrous product, in which method at least two different foaming agents are applied, wherein said at least two different foaming agents are selected, independently from each other, from the group of surface-active foaming agents and polymeric foaming agents.

To provide a biomass water-soluble surfactant composition that imparts excellent wettability, permeability and takes care of solubility in water and an environmental issue, and an ink in which the composition is blended, and a paper coating agent.SOLUTION: A water-soluble surfactant composition has a biomass degree of 10% or more, comprising: (A) an acetylene glycol represented by the following formula (1): (wherein R1 and R2 each are an alkyl group having 1 to 5 carbon atoms) and / or an ethoxylated acetylene glycol represented by the following formula (2): (wherein R3 and R4 each are an alkyl group having 1 to 5 carbon atoms, m and n each are positive numbers of 0.5 to 25, and m+n is 1 to 40); and (B) at least one bio-derived polyoxyalkylene-added nonionic surfactant.SELECTED DRAWING: None

Novel environmentally friendly, wet strength improved fibrous non-woven fabrics, optionally paper, impregnated with a mixture including a silicon component, further including water and / or an alcohol and / or a surfactant and a catalyst. Also encompassed are methods for production and uses of such wet strength improved fibrous non-woven fabrics.

Provided is toilet paper which is excellent in thickness feeling and water disintegrability, has sufficient softness, gives a sense of security for human bodies during use, and is environmentally friendly. Toilet paper has three or four plies. The basis weight is 12.5 to 15.5 g / m2 per ply. 80 to 100 mass% of fiber is softwood kraft pulp that is subjected to oxygen pulping and is not bleached with chlorine. The toilet paper contains a cationic fatty acid amide-based softener, and has a paper thickness of 120 to 150 µm per ply, a paper thickness of 400 to 600 µm as a whole of the toilet paper, and a water disintegrability of 10 seconds or less.

The present invention relates to a material suitable for manufacturing hydrophobic cellulose-based light-weight products, such as foams and foam papers, comprising any type of cellulose pulp from either soft wood or hardwood, 2 to 10 wt.% of hydrophobic suspension (OAF) to pulp, 0.5 to 5wt% of Chitosan solution in organic acids to pulp, 3 to 10 wt.% of surfactants to the pulp. The invention also relates to a process of making said material and a use thereof.

The invention discloses a compound color fixing agent and a preparation method and application thereof, and belongs to the technical field of papermaking chemicals, the preparation method of the compound color fixing agent comprises the following steps: adding a bio-based polycation component into an acetic acid solution, heating and stirring to obtain a bio-based polycation stock solution; and adding amphiphilic polycyclodextrin and a surfactant into the bio-based polycation stock solution, and carrying out homogenization treatment to obtain the compound color fixing agent. The compound color fixing agent provided by the invention comprises bio-based polycations, amphiphilic polycyclodextrin and a surfactant, the amphiphilic polycyclodextrin with a hydrophobic cavity is connected with C3-C5 alkyl and quaternary ammonium salt groups, through a multi-component compounding design, by utilizing a synergistic effect of host-guest inclusion, electrostatic interaction and hydrophobic interaction, the color fixing agent has a good color fixing effect, and the color fixing agent has a good color fixing effect. And a coating with an interpenetrating network structure is constructed on the surface of the paper, so that fixation of the dye is realized.

The present invention relates to a material suitable for manufacturing hydrophobic cellulose-based light-weight products, such as foams and foam papers, comprisingany type of cellulose pulp from either soft wood or hardwood,2 to 10 wt. % of hydrophobic suspension (OAF) to pulp,0.5 to 5 wt % of Chitosan solution in organic acids to pulp, 3 to 10 wt. % of surfactants to the pulp. The invention also relates to a process of making said material and a use thereof.

To provide a method for efficiently removing a silicon compound contained in paper, and a removing agent.SOLUTION: The method for removing the silicon compound from the paper comprises a step of treating a raw material slurry containing the paper having a layer containing the silicon compound and water and having a solid content derived from the paper with a solvent containing a cationic surfactant.SELECTED DRAWING: None

The invention discloses a self-emulsifying bio-based polyester stabilized multi-class bio-based polymer water-based emulsion as well as a preparation method and application thereof, and belongs to the technical field of bio-based high polymer materials and water-based resin. According to the preparation method disclosed by the invention, a dual-interface synergistic stabilization mechanism is constructed by adopting the self-emulsifying bio-based polyester containing furandicarboxylic acid and the rosin-based component, so that efficient emulsification and interface compatibility of various hydrophobic bio-based film-forming polymers such as polyhydroxyalkanoate and polylactic acid are realized. The emulsion prepared by the invention has excellent storage stability and machining adaptability, maintains extremely high bio-based content and extremely low volatile organic compound residue while remarkably improving the water resistance, oil resistance and gas barrier property of a paper-based coating, and completely meets the safety standard of food contact-grade materials. According to the preparation process, the microstructure of dispersed phase particles is accurately regulated and controlled through phase inversion and high-pressure homogenization, and an ideal green coating solution is provided for high-performance environment-friendly paper-based packaging.

The present invention provides certain paper enhancing compositions, typically aqueous compositions, for use in the manufacture and coating of paper, and paper products. The paper enhancing compositions provide certain paper processing advantages and distinct final paper product characteristics. The present invention further provides carbonate enhancing composition useful for preparing enhanced carbonate compositions used in the paper manufacturing processes.

The present invention relates to a method for producing a solid cellulose foam. The method includes depositing a first wet cellulose foam to obtain a first wet foam deposit, followed by providing score lines at least partially through the height of the first wet foam deposit to form pillars of wet cellulose foam. During drying of the first wet foam deposit, gaps are formed along the score lines, separating the pillars. In a subsequent deposition step, a second wet cellulose foam is deposited to obtain a subsequent wet foam deposit that fills the gaps between the pillars. After drying, a solid cellulose foam is obtained that includes the pillars of the first solid foam deposit and the subsequent solid cellulose foam deposit that fills the gaps between the pillars.

The invention relates to the technical field of paper pulp foaming buffer material preparation, in particular to a paper pulp foaming buffer material and a preparation method and application thereof. Carrying out mechanical treatment on the paper pulp fiber suspension to obtain a fibrillated paper pulp fiber suspension; mixing the fibrillated paper pulp fiber suspension with an electrolyte to obtain a paper pulp / electrolyte mixed solution; mixing the paper pulp / electrolyte mixed solution with a surfactant, and foaming to obtain paper pulp / electrolyte foaming slurry; and placing the paper pulp / electrolyte foaming slurry in a porous mold to remove a liquid phase, and drying to obtain the paper pulp foaming buffer material. The paper pulp foaming buffer material provided by the invention has excellent mechanical property, heat insulation property, machinability and biodegradability, and the packaging buffer application of the paper pulp foaming material to articles such as light fragile products and temperature-sensitive products is obviously expanded.

The invention provides a paper-based material with oil-resistant, oxygen-resistant and high-wettability properties, which comprises a base material, a prime coat material and an oxygen-resistant and oil-resistant functional coating material, and the base material is an overpressure paper base material. The bottom material is composed of a binder and a filler, and the functional coating adopts a polar macromolecular polymer and a composite material thereof to form a dense film so as to block oil and oxygen. The product can avoid grease leakage and oxidative deterioration and prolong the shelf life of contents, meanwhile, the surface of the material is easy to print with ink and seal with mucilage glue, and the material can be directly used, or partially or completely applied with a heat-seal coating for bag making, or used for printing by using high-transparency paper as base paper, or used as a barrier layer of a laminated material. The contradiction that the barrier property and printability of the existing barrier paper are difficult to consider is overcome, and both environmental protection and cost feasibility are considered.

To provide a softener for papermaking which can simultaneously impart high flexibility and high water absorbency while maintaining the strength of paper, and can suppresses the generation of odor.SOLUTION: A softener for papermaking includes: a polyoxyalkylene hardened castor oil as a component A; a quaternary cationic surfactant containing an imidazoline ring as a component B; and a polyether polyol (excluding the component A) as a component C.SELECTED DRAWING: None

Title: Method for manufacturing an object based on cellulosic fibers and object based on cellulosic fibers thus manufactured The invention relates to a method for manufacturing an object based on cellulosic fibers and an object based on cellulosic fibers thus manufactured. The manufacturing process 10 is essentially such that it comprises the following steps: Mixing 12, with water, a dry material comprising at least between 80 and 99%, preferably between 90 and 99%, of cellulosic fibers and between 1 and 20%, preferably between 1 and 10%, of a water-soluble polymer, preferably natural, or of a water-retaining additive, so as to obtain a pulp based on cellulosic fibers with a dry matter concentration by weight of substantially between 10 and 70%, preferably between 20 and 50%. Without drying it, shaping the pulp 14 in a mold of the object to be manufactured. Drying 16, by thermocompression, the shaped pulp in the mold.Figure for the abridged version: Fig. 1.

The invention belongs to the technical field of filter materials, and provides an aramid fiber filter material as well as a preparation method and application thereof. The preparation method comprises the following steps: firstly, preparing oleophylic nano aramid paper; then, the precursor aramid paper is soaked in an aqueous solution of a third polar aprotic solvent, the soaked aramid paper is taken out and laid flat after soaking is completed, a polytetrafluoroethylene solution is sprayed to the surface of the soaked aramid paper, and oleophobic aramid paper is obtained; the oleophylic nano aramid paper and the oleophobic aramid paper are laminated and compounded in a manner that the oleophylic nano aramid paper is in contact with the surface, not sprayed with the polytetrafluoroethylene solution, of the oleophobic aramid paper, and then are sequentially subjected to sizing and hot pressing to obtain the composite material. The aramid fiber filter material prepared by the invention has an oleophobic-oleophylic synergistic mechanism to realize coalescence-adsorption dual capture of oil mist, the efficiency and the service life are synchronously improved, the replacement frequency of the filter material is reduced, and high efficiency and long acting are realized; the energy consumption of the air compressor can be reduced by increasing low pressure drop; the surface modification process is suitable for industrial production, and the cost is controllable.

The present invention relates to a method for the preparation of a solid foam, wherein the method comprises depositing discrete units of a foam on a surface to obtain a first foam deposition, followed by depositing a wet foam between the discrete units to obtain a subsequent foam deposition, and drying the wet foam. The invention further relates to a solid foam comprising discrete units of foam embedded in a foam matrix.

Foam formulations and methods for manufacturing paper products using foam formulations are provided. An exemplary method includes producing a foam of a gas, water, a dry strength agent, and a combination of foaming agents including an anionic sulfated / sulfonated surfactant and a polysorbate-type nonionic surfactant; applying the foam to a web; and processing the web to form the product.

A coated paper liner serves as both exterior packaging and an interior release liner for consumer products. The liner comprises a paper sheet layer with a first polymeric composition, such as a thermoplastic elastomer or polymer, forming a film on at least a portion of a surface of the paper sheet. The liner may also comprise a flexibility agent that enhances pliability and noise reduction during handling. The liner may include a release agent, like silicone, to prevent adhesion of consumer products to the liner. The method of manufacturing involves coating the paper sheet with the polymeric composition and flexibility agent, followed by drying. This solution offers a sustainable alternative to plastic films, providing to the liner heat-sealability, barrier properties, and recyclability.

An interleaf for glass sheets includes a substrate and a coating material deposited on the substrate wherein the coating material includes a dispersing medium, a water soluble surfactant, and a water insoluble defoamer.

A multi-ply through air dried structured tissue having a bulk softness of less than 10 TS7 and a lint value of 5.0 or less. Each ply of the tissue has a first exterior layer that includes a wet end temporary wet strength additive in an amount of approximately 0.25 kg / ton and a wet end dry strength additive in an amount of approximately 0.25 kg / ton, an interior layer that includes a first wet end additive comprising an ionic surfactant, and a second wet end additive comprising a non-ionic surfactant, and a second exterior layer.

The present invention provides a pulp sheet for fluff pulp that exhibits good defibration properties during manufacturing and good water absorption performance of the resulting absorbent article, even when using pulp composed of bleached kraft pulp from coniferous trees including cedar. [Solution] A pulp sheet for fluff pulp according to one aspect of the present invention contains raw material pulp made from bleached softwood kraft pulp and a surfactant, wherein the raw material wood of the bleached softwood kraft pulp includes cedar wood, the surfactant includes a nonionic surfactant and a cationic surfactant, the content of pulp fibers with a fiber length greater than 0.2 mm and less than 0.6 mm in the length-weighted fiber length distribution of pulp fibers is 8% by mass or more, and the mass ratio of the cationic surfactant to the nonionic surfactant is 0.25 or more and 4.00 or less. Preferably, the nonionic surfactant is a polyoxyalkylene alkyl ether, and the content of the cationic surfactant is 0.075 kg / t or more and 2.250 kg / t or less.

The application discloses an acid-neutral nano PHA paperboard reinforcing agent and preparation and application thereof, and belongs to the technical field of papermaking chemicals. The reinforcing agent is a bio-based nano water-based emulsion, and the core is that a stable high positive charge nanoparticle interface is constructed under an acid-neutral window through synergistic effect of polyphenols and amine polymers. The application solves the environmental safety hidden danger of traditional wet strength agents, and does not contain free formaldehyde and epichlorohydrin. The outstanding advantages are as follows: completely compatible with modern acid-neutral papermaking process, overcoming the defect that similar bio-based technologies need to react under alkaline; flexible application, can be efficiently used for wet part addition, or stably compounded with oxidized starch for surface sizing; high efficiency and energy saving, under the condition of lower addition amount and 105 DEG C conventional industrial drying, excellent wet strength retention rate and dry strength improvement can be realized, and no additional high temperature curing is needed.