55results about How to "Anti-penetration" patented technology

The invention provides a capillary crystalline waterproofing material which comprises silicate cement, quartz sand, a crystal master batch, latex powder, other active materials, and the like, whereinthe ratio of aggregate cement to the quartz sand is 1:1.89; the crystal master batch is dehydrated gypsum or calcium chloride, and the like; and the proportion of the crystal master batch is between 3percent and 7 percent. The waterproofing material has the bonding force, the surface adhesive force, quantities of formed crystals, the strength and the anti-penetration force of concrete and can ensure that concrete structures cannot be damaged. The capillary crystalline waterproofing material has wide range of application, is applied to projects of basements, civil air defenses, tunnels, ports,wharfs, swimming pools, dams, irrigation ditches, and the like, solves the problems of concrete projects, achieves the purpose of permanent water proofing and also protects concrete and reinforcing steel bars from corrosion.

The invention discloses a nanometer coating protective pipe prepared by nanometer squama coating and production technique of coating, wherein, the nanometer coating protective pipe consists of three parts of a pipe body, a basal layer and a function layer. The basal layer is the substrate of the nanometer coating and coated on the surface of the pipe body when contacts with a metal base body. The function layer is the facial layer of the nanometer coating and coated on the surface of the basal layer when the function layer contacts with corrosive medium. The nanometer coating the protective pipe disclosed in the invention changes the surface characteristic of the steel pipe products, and acquires a novel characteristic completely different from the original steel pipe products and enables the products to satisfy the need of people towards hi-tech development. The nanometer coating can provide oil pipe products with good performance in resisting corrosion, paraffin, scale and abrasion, so as to greatly prolong the maintenance period of the pipeline products in oil extracting wells, water injecting wells and conveying pipelines of oil fields.

The invention discloses a tea bran shower gel, and belongs to the technical field of bath. The effective ingredients of the tea bran shower gel are prepared from the following raw materials in percentage by weight: 20-25% of tea bran extract, 3-4% of tea oil, 1.3-1.5% of polyoxyethylene, 0.7-1% of polyethylene glycol bisstearate, 0.85-1.23% of white vinegar and the balance of water. The tea bran shower gel disclosed by the invention is reasonable and simple in raw material components, convenient and practical; various unnecessary additives are reduced, thus the tea bran shower gel is more natural and safer, and has the great functions of cleaning, nourishing, diminishing inflammation, relieving itching and resisting bacteria.

The invention provides an alumina-silica drainage agent and a preparation method thereof and belongs to the field of amorphous surface fireproofing materials for steelmaking industries. According to the technical scheme, the alumina-silica drainage agent is prepared from pottery cinnabar with the granularity of 0.5-1.2mm, desert silica sand with the granularity of 0.3-0.9mm, flake graphite with the granularity smaller than or equal to 75 mu m, and an adhesive. The preparation method includes first drying the pottery cinnabar and the desert silica sand, adding the flake graphite and the adhesive, and performing stirring in a barrel type stirrer to prepare the alumina-silica drainage agent. The alumina-silica drainage agent is clean, environmentally friendly, and capable of effectively increasing a pouring rate of a product to above 98%, meanwhile substantially reducing product costs, effectively reducing discharge of exhaust gases and dust, and meeting requirements for product qualities, prices and steel liquid purity degrees in present steel industries.

The invention relates to a method for preparing cement clinker by utilizing sludge. The method mainly comprises the steps of preparing materials, mixing materials, prilling, drying roasting, and the like, the key is to choose silicon ash and zeolite paste as auxiliary raw materials to be mixed with discharged sludge of a sewage treatment plant, then technical components act with one another, SiO2, Al2O3 are combined with SO3, a part of silicate ionic group is replaced by sulfate ionic group, and therefore, the solution rate can be slowed down and the problem of large water consumption of the previous sludge-type cement is solved. When the cement clinker prepared by the sludge with the method is compared with the existing produced high-temperature cement clinker, 80% of energy can be saved, and CO2 discharge can be reduced by 85%. The method conforms to national recycling cyclic development of waste residue of sludge, and the like and is beneficial to new technology and new material changing waste material to things of environmental policy.

The invention discloses a tea bran shampoo, and belongs to the technical field of bath supplies. The effective ingredients of the tea bran shampoo are prepared from the following raw materials in percentage by weight: 23-25% of tea bran extract, 1-3% of tea oil, 1-2% of guar gum quaternary ammonium salt, 0.3-0.6% of ethylene glycol stearate, 0.7-1% of polyethylene glycol bisstearate, 0.85-1.23% of white vinegar and the balance of water. The tea bran shampoo disclosed by the invention is reasonable and simple in raw material components, convenient and practical; various unnecessary additives are reduced, thus the tea bran shampoo is more natural and safer, and has the great functions of cleaning, nourishing, preventing hair loss and resisting diseases.

The invention discloses a steamed stuffed bun capable of being boiled and a preparation method thereof; wrappers of the steamed stuffed buns adopt starch and water as main raw materials; the steamed stuffed bun capable of being boiled is prepared by gelatinizing the starch and water, kneading a dough to prepare wrappers with strong plasticity, preparing steamed stuffed buns by wrapping stuffing with the wrapper, shaping to obtain various shapes, and fixing the shapes to obtain the steamed stuffed buns capable of being boiled. The wrapper obtained in the invention is waterproof since starch is gelatinized into a film, and the obtained steamed stuffed bun not only can prevent penetration of stuffing soup juice, but also can be boiled with water for eating. The steamed stuffed bun can be both steamed and boiled, is suitable for both spicy hot pots and chafing dishes, and widens the consumption approach of steamed stuffed buns.

The invention discloses a method for manufacturing a cabinet board. The method is characterized by comprising the following steps of raw material chipping, impurity removing and screening, stewing, wax applying and hot grinding, glue applying and drying, paving and prepressing, sticking of a waterproof board and veneering and side sealing. The cabinet board manufactured with the method has the good properties of water resistance, wear resistance, fire prevention and high temperature resistance; the residual amount of formaldehyde is low, and the hurt to a human body is reduced; and the board is stable in quality, good in strength, excellent in waterproof performance, good in size stability, not prone to cracking and being damaged and long in service life.

The invention belongs to the technical field of refractory development, and particularly relates to a castable for an aluminum melting furnace lining and a preparation method and a using method of thecastable. In allusion to the problems that the existing aluminum melting furnace lining is easy to loosen and fall off, short in service life and high in production cost due to use of bricks, the invention provides the castable for the aluminum melting furnace lining. The castable comprises a component A and a component B, wherein in percent by weight, the component A comprises 68-70% of fused brown corundum, 18-20% of bauxite powder, 4-6% of alpha-aluminum oxide micropowder, 2-4% of calcium aluminate cement and 2-4% of super silicon micropowder; and counted by the component A, the componentB comprises 1-2wt% of stainless steel fiber, 0.2-0.4wt% of a high-efficiency water reducing agent and 0.03-0.05wt% of explosion-proof fiber. The invention further provides the preparation method and the using method of the castable. The furnace lining produced from the castable has high compactness, high strength, high toughness, impact resistance, stable thermal shock performance, long service life and obvious economic benefits.

The invention discloses a decorative laminated board with a bacteriostatic function and a preparation method thereof. The decorative laminated board comprises base paper, core paper and surface paper, and a melamine resin layer containing a bacteriostatic agent is coated on the surface paper. The preparation method comprises: dipping the surface paper, the core paper and the base paper in a thermosetting material respectively at first, and then performing drying under the condition that the temperature is 90-110 DEG C; coating a layer of melamine resin containing a bacteriostatic agent on the surface of the dried surface paper, and performing drying again; and placing the core paper and the surface paper on the base paper in sequence, performing pressing for 30-90 minutes at 135-150 DEG C and 15-20MPa, lowering the temperature to below 40 DEG C to obtain a semi-finished product, and finally, trimming and sanding the semi-finished product to obtain a decorative laminated board. The board prepared by virtue of the method can effectively inhibit the growth of microorganisms on the surface of the board and prevent propagation of diseases, and the rate of killing moulds and pathogenic bacteria (such as colibacillus and staphylococcus) on the surface of the board reaches 95% or higher and accords with and exceeds a national standard.

The invention relates to the pesticide field and discloses cockroach plant-source pesticide bait which is mainly made from tea saponin and boric acid. Particularly, the cockroach plant-source pesticide bait is prepared from tea saponin, boric acid, fried soybean meal, potassium sorbate, glycerine, vaseline, xanthan gum and sesame oil. The preparation method of the high-efficiency low-toxicity low-cost pesticide bait comprises the following steps: grinding, screening, sitrring, dissolving and filling. The raw materials of the pesticide bait are all green, environmentally friendly and pollution-free. The product has high efficiency and low toxicity, is convenient to use, has low cost, small dosage, and obvious insecticidal effect on cockroach including German cockroach, moreover, the materials of the cockroach plant-source pesticide bait are easy to obtain. When the two main raw materials, namely tea saponin and boric acid, are in the optimal proportion, the corresponding co-toxicity coefficient (CTC) is up to 128. The product can meet the cockroach-killing demands of places such as domiciles, office buildings, warehouses and restaurants.

The invention discloses a method for packaging densely-arranged semiconductor chips for an Internet of Things terminal and belongs to the semiconductor packaging field. The method for packaging densely-arranged semiconductor chips for the Internet of Things terminal is characterized in that a placement groove is formed in an upper surface of a lower shell, the upper surface of the lower shell is fixedly connected with two groups of conductive columns, the two groups of conductive columns are respectively positioned on two sides of the placement groove, a through hole is formed in the lower shell, the through hole is formed below the conductive columns, a pin is placed in the through hole, an upper end of the pin is fixedly connected with the conductive columns, adhesive is adhered to the bottom of the placement groove, a chip is placed in the placement groove, a lower end of the chip is bonded with the adhesive, and an upper surface of the chip is connected with the conductive columnsthrough a plurality of wires. The method is advantaged in that indirect connection between the chip and the pins can be realized, shaking or damage of the chip due to the fact that the pin drags the chip can be avoided, an elastic packaging mode is adopted during plastic packaging, so the fixing effect can be achieved, and the chip cannot be damaged.

The invention discloses a waterborne anti-doodling coating. The waterborne anti-doodling coating is characterized by comprising the following components in parts by weight: 50-80 parts of pure acrylate emulsion, 0.5-1 part of wax emulsion, 0.05-0.1 part of fluoride additive, 15-20 parts of filler, 0.1-0.2 part of dispersant, 0.05-0.1 part of wetting agent and 1.0-2.0 parts of coalescing agent. The waterborne anti-doodling coating disclosed by the invention has excellent antifouling and anti-doodling functions and contaminants can be easily cleaned.

The invention provides titanium-polymerized polyester-modified organic silicon high-temperature-resistant paint. The paint is prepared from, by weight, 40-60 parts of polyester-modified organic silicon resin, 10-30 parts of solvent, 0.1-2 parts of titanium polymers, 0.5-15 parts of pigments, 5-25 parts of filler, 0.5-2 parts of levelling agent, 1-3 parts of anti-sticking auxiliary and 0.1-5 parts of silver pearl powder. Compared with the prior art, the paint has the advantages of being low in curing temperature, high in curing crosslinking degree, excellent in adhesive force between a coating and a substrate and long in coating service life, is high-quality, durable and healthy paint and can be widely applied to kitchen ware products such as a cake plate, a non-stick pan, an electric baking pan and a bread maker.

The invention relates to a waterproof material, in particular to an acid rain resistant CPE waterproof coiled material. The material solves the waterproof problem of buildings in an acid rain environment. The material is prepared from raw materials with the following proportions by weight: 50-70 percent of chlorinated polyethylene, 15-25 percent of light calcium carbonate, 7-12 percent of silicon dioxide, 2-6 percent of talcum powder and 4-7 percent of carbon black. The relative change rate of tensile strength is -5 percent in vertical direction and -4 percent in horizontal direction and the relative change rate of elongation at break is +2 percent in vertical direction and +2 percent in horizontal direction. Compared with domestic similar products, the coiled material has the advantages of high strength, corrosion resistance, acid-base resistance, high and low temperature resistance, environmental protection, no pollution, convenience for construction, wide application range and the like.

The invention discloses an anti-corrosion structure for a chimney. The anti-corrosion structure comprises a first coat (2), an adhesive layer (3) and a titanium plate layer (4) which are arranged in sequence, wherein a chimney base (1) is coated with the first coat (2), and the titanium plate layer (4) adheres to the first coat (2) through the adhesive layer (3). The invention further discloses a construction method of the anti-corrosion structure for the chimney. The method comprises the steps of cleaning the chimney base, coating the cleaned chimney base with the first coat material, applying adhesive and sticking a titanium plate after the first coat material on the chimney base is solidified, and conducting inspection and repair. According to the method, the lapped titanium plate is directly stuck onto the structural layer of a chimney by means of the titanium plate adhesive. The method has the advantages that construction period is short, the requirement for the site construction environment is low, and the problem that titanium plate welding quality is poor due to poor construction site welding environment is solved.

The invention relates to ultrahigh-performance concrete waterproof composite liquid being prepared from, by weight, 10-30 parts of soluble aluminum salt, 20-50 parts of a silane coupling agent, 0.5-5parts of an antioxidant, 0.5-5 parts of a stabilizer, and 100-200 parts of water. The concrete waterproof composite liquid has anti-seepage and anti-seawater-corrosion effect; as a concrete additive,the composite liquid can greatly improve the water-retaining property and anti-separation effect of concrete, reduces erosive damage on a protective layer surface of steel bars due to sea wave and seasand, and reduces and fines capillaries on the surface of concrete, thereby reducing capillary inhalation of the concrete to salts, alkalis and the like and reducing slump loss of concrete.

The invention discloses a traditional Chinese medicine preparation for shampooing. The traditional Chinese medicine preparation is prepared from, by weight, 15-30 parts of Radix Polygoni Multiflori Praeparata, 8-20 parts of Radix Angelicae Sinensis, 8-20 parts of Cortex Mori, 4-15 parts of Radix Glycyrrhizae, 20-30 parts of tea seed cakes and 8-20 parts of Cacumen Platycladi. The traditional Chinese medicine preparation has advantages of safety and healthiness in utilization, efficacies of dandruff eliminating, itching relieving, hair blacking, baldness preventing, hair moistening and smoothening, hair knotting and splitting preventing and functions of inflammation diminishing, pain relieving, osmosis resisting and the like.

The invention provides an aluminum-silicon drainage agent and a preparation method thereof, belonging to the field of unshaped surface refractory materials used in the steelmaking industry. The technical solution of the present invention is: an aluminum-silicon drainage agent, which is composed of ceramic bead sand with a particle size of 0.5-1.2 mm, desert quartz sand with a particle size of 0.3-0.9 mm, phosphorus flake graphite with a particle size of ≤75 μm, and an adhesive It is made by first drying ceramic bead sand and desert quartz sand, then adding phosphorus flake graphite and binder, and stirring in a cylinder mixer to make it. The aluminum-silicon drainage agent of the present invention can effectively increase the casting rate of the product, so that the casting rate of the product can reach more than 98%, and at the same time greatly reduce the cost of the product, effectively reduce the emission of waste gas and dust, clean and environmentally friendly, and adapt to the current steel industry's requirements for product quality, Price and purity requirements of molten steel.

The invention discloses a tea oil composition for treating beriberi. The tea oil composition consists of camellia oil, lotus leaves, common lophatherum herb, honeysuckle flower and tangerine peel, wherein the raw materials are prepared according to the following parts by weight: 100-120 parts of the camellia oil, 20-30 parts of the lotus leaves, 10-20 parts of the common lophatherum herb, 6-12 parts of the honeysuckle flower and 1-5 parts of the tangerine peel. Meanwhile, the invention further discloses a preparation method of the tea oil composition for treating beriberi. According to the invention, various different Chinese herbal medicine materials can be fully, uniformly and completely dissolved in the camellia oil, and the effective active ingredients of the various Chinese herbal medicines jointly form treatment ingredients of the composition, so that the treatment effect is improved.

The invention relates to a preparation method of imitated jade glass. The preparation method for imitated jade glass comprises the following steps of: polishing the both surfaces of plate glass, crushing the plate glass into blocks with sizes of 70-100 mm, cleaning and stacking in a trough layer by layer, then uniformly scattering bauxite, andalusite and silicon carbide reaction aids on the crushed glass, then heating the trough to 730-780 DEG C in 15-17 hours, insulating heat for 32-38 hours and then cooling to a normal temperature in 18-22 hours to obtain the product. The product has light-transmitting and lightproof effects, is of jade texture and many colours, is free of radioactivity of natural stone, as also has higher acid-base resistance, corrosion resistance, impact resistance and compressive strength than natural stone; the crushed particles are not sharp, cannot injury people, has good machining performance, good ageing resistance, does not absorb water, capable of persistently keeping a bright colour, and simple in installation method. The product is widely used in decoration for the interior and exterior walls, floors and furniture of buildings such as whole curtain walls, high-grade residences and clubs, is far superior to natural stone in both visual sense and tactile sense, noble and elegant in decoration effect, and is a new generation of environment-friendly decoration materials.

The invention discloses an aqueous anti-doodling paint, which consists of antifouling functional materials, assistants, glass powder filling and water, wherein the antifouling functional materials comprise pure acrylic ester emulsion, wax emulsion and FSE fluorine-type assistant; and the assistants comprise dispersant, wetting agent, film-forming assistant, anti-freezing agent, defoaming agent, thickening agent, mildew-proof agent and preservative. The preparation method of the invention comprises steps of premixing, grinding and dispersing, emulsion adding, assistant adding, packing and the like. The aqueous anti-doodling paint has good antifouling and anti-doodling functions, wherein the VOC content is 52 to 65 g / L, the content of benzene series substance is less than 300 mg / kg, and the contents are far below the index values of volatile organic compounds of solvent products; and the aqueous anti-doodling paint is suitable for indoor space. Moreover, the paint film is compact; meanwhile the paint has the capacities of resisting seepage and reducing the adhesion of pollutants; and particularly aiming at the substances such as children water color pens, crayons, color pencils, ball pens, ink, coffee, tomato sauce, tea juice, shoe print and the like, the pollutants can be easily scrubbed.

The invention relates to a flame-retardant and explosion-proof ammunition box, and belongs to the field of packaging of flammable and explosive materials. The flame-retardant and explosion-proof ammunition box comprises a sealing cavity defined by a box body and a box cover fastened on the box body, and the box body and the box cover both comprise a rotational moulding outer shell, a heat insulating filling layer, a heat insulating felt or plate layer and a metal foam explosion-proof inner shell from outside to inside; a containing cavity defined by the metal foam explosion-proof inner shell of the box body is internally provided with a vibration reduction mold shell matched with ammunition in shape and specification, the rotational moulding outer shells on the box body and the box cover form a stepped limit sealing structure of snap fastening by relying on matched protrusions and notches, the metal foam explosion-proof inner shells are surrounded by the heat insulating felt or plate layers, a heat insulating felt or plate on the box cover is lower than the corresponding metal foam explosion-proof inner shell, a heat insulating felt or plate on the box body is correspondingly higher than the corresponding metal foam explosion-proof inner shell, a double-layer dislocation fastening sealing structure is formed, and the heat insulating filling layers are heat preservation materials filling gaps between the rotational moulding outer shells and the heat insulating felt or plate layers. The packaging box has multiple protection functions of flame retardance, heat insulation, vibration and shock resistance and explosion protection.

The invention relates to ultrahigh-performance concrete waterproof composite liquid being prepared from, by weight, 10-30 parts of soluble aluminum salt, 20-50 parts of a silane coupling agent, 0.5-5parts of an antioxidant, 0.5-5 parts of a stabilizer, and 100-200 parts of water. The concrete waterproof composite liquid has anti-seepage and anti-seawater-corrosion effect; as a concrete additive,the composite liquid can greatly improve the water-retaining property and anti-separation effect of concrete, reduces erosive damage on a protective layer surface of steel bars due to sea wave and seasand, and reduces and fines capillaries on the surface of concrete, thereby reducing capillary inhalation of the concrete to salts, alkalis and the like and reducing slump loss of concrete.

The invention relates to a concrete ingredient and fast hardening concrete prepared by mixing the concrete ingredient, which belong to the field of materials in construction engineering, and are mainly used in masonry or rush repair of the periphery of inspection wells on urban roads. The concrete ingredient includes sulfur aluminum cement, coarse aggregate, fine aggregate, a reinforcing material, an enhancing material, a coloring material, an expanding agent, a water reducing agent and an accelerating agent. In the concrete prepared by mixing the concrete ingredient, the weight ratio of the fast hardening concrete ingredient to water is 1:0.12-0.13. The concrete prepared by mixing the concrete ingredient has the properties of self-leveling, super early strength, high strength, micro expansion, resistance to shrinking, penetration, wear and ageing, and the like.

The invention discloses a field test method for simulating construction of an ecological irrigation ditch based on microbial-induced calcite precipitation, and belongs to the technical field of waterconservancy projects. The method comprises the following steps that excavating is carried out in a field to form an irrigation ditch base plane; the irrigation ditch is divided into a plurality of subareas by using steel plates; different material and process treatment is carried out on each subarea; the water permeability of a treated irrigation ditch soil body is tested through a water injectionmethod; the shear strength of the soil body is tested by using a portable cross plate shear apparatus; the impact resistance of the soil body is tested by using a total station; and the material andthe process of the ecological irrigation ditch are determined. According to the method, the water permeability, the shear strength and the impact resistance of soil bodies treated according to different parameters and the different processes are compared with one another, the material and the process for constructing the ecological irrigation ditch based on the microbial-induced calcite precipitation are determined, compared with a traditional irrigation ditch construction technology, the ecological irrigation ditch is constructed based on the microbial-induced calcite precipitation, a seriesof problems of greenhouse gas release during cement production, dust pollution, construction waste, soil pollution and the like in concrete lining are avoided, and the ecological irrigation ditch construction technology based on the microbial-induced calcite precipitation is an environment-friendly innovative technology.

The invention discloses a method for preparing linarin micro-capsule particles. The method comprises the following steps: dissolving linarin in water with the weight being 8-10 times that of linarin,adding tea saponin and lactic acid fatty glyceride, and uniformly stirring to obtain a core material solution; taking phlorizin, rhamnolipid and Arabic gum as wall materials, adding water of which theweight is 10-15 times that of the wall materials, performing uniform stirring, and heating to 60-70 DEG C so as to obtain a capsule material solution; adding the core material solution into the capsule material solution according to a mass ratio of 1:(1-4), adding into a homogenizer, and homogenizing to obtain a mixed solution; and sending the mixed solution into a granulation sprayer, performingspray drying, and cooling to room temperature to obtain the linarin microcapsule particles. According to the method disclosed by the invention, the linarin is microencapsulated by selecting the proper core material and the wall materials, so that the efficient encapsulation of the linarin can be effectively realized, the solubility is improved, the stability is improved, the storage period is prolonged, and the adhesive capacity of the microcapsules in the stomach of a human body is effectively improved; and the antioxidant, hypoglycemic and anti-inflammatory effects and the like of the linarin microcapsules can be enhanced, the medicine flavor is masked, and the sweetness of the linarin microcapsules is improved.

The invention discloses a polystyrene mortar which is characterized by comprising the following components by weight parts: 10-20 % of cement, 25-33 % of sand, 20-26.4 % of coal slag, 20-28 % of polystyrene foaming particles, 5-9 % of sodium silicate, 0.2-0.7 % of a coupling agent, 0.2-0.7 % of calcium carbonate and 0.2-0.7 % of sodium silicate fillers. Compared with prior art, the polystyrene mortar provided by the invention has the following beneficial technical effects that the products is compression resistance, seismic resistance, impermeable, thermal insulation, sound insulation, good in fireproof performance, light in weight, convenient to construct, and labor, material and cost saving; is an ideal substitute of clay brick, and vigorously promoted by the nation; and accords with supporting projects of developing circular economy and saving resources.

The invention discloses a switch control groove type switch box in the field of switch boxes, which comprises a box body, a box cover is movably connected to the outer surface of one side of the box body, an observation window is detachably connected to the middle of the box cover, a protection plate is fixedly connected to the outer surface of the periphery of the box body, and a mounting plate is fixedly connected to the outer surface of one side of the protection plate. Mounting groove blocks are fixedly connected to the outer surfaces of the peripheries of the protection plates, expansion screws are fixedly connected to the outer surfaces of one ends of the mounting groove blocks, the protection plates are fixedly connected to the outer surfaces of the two sides of the protection plates, reinforcing steel bars are machined in mechanical equipment in the protection plates, and a pressure-resistant plate is fixedly connected to the outer surface of one end of each protection plate. According to the arrangement, installation is easy, convenient and rapid, installation is firm and not prone to loosening, the installation difficulty is lowered, and practicability is high; and the protection effect is good, long-term use is facilitated, the economic cost is reduced, and safety is good.

The invention relates to an imaging member comprising at least one image layer and a base, said base comprising a cellulose paper that has its surfaces impregnated with water dispersible ester-based condensation polymer wherein the surface of said base has a roughness of less than 2.03 mum Ra and a hydrophobicity as measured by 40 / 20 Acid Valley test in excess of 500 seconds.