TW593606B - Preparation of coating for moistureproof/waterproof paper - Google Patents

Abstract

A preparation of a coating for moistureproof/waterproof paper capable endowing a piece of paper with moistureproof/waterproof functions mainly includes 80.6% to 34% of a filling material and 19.4% to 66% of a coating material, based on the matrix material of the paper. The filling material is prepared by subjecting water, a dispersion agent, a mica powder, and a liquid alkali to mixing and swelling treatments. The coating material is prepared by subjecting starch, polyvinyl alcohol, an anti-hydration agent, a cross-linking agent, a latex, a stabilizer, a water repellent, a surfactant, a lubricant, and a wetting agent to mixing. When the invented preparation is coated on a piece of raw paper, the preparation permeates into the fibers easily and fills up the capillaries therein, thereby endowing the paper with non-water-absorbency, water repellent, strong binding with the raw paper and forming a thin coating with sufficient moistureproof/waterproof functions. The invented preparation provides desired functions to paper without excessively increasing the thickness of paper.

Description

593606 Fix

The present invention is a kind of moisture-proof and waterproof paper coated paper which has the functions of moisture-proof and waterproof. It is not necessary to achieve case number 9012 to prevent 47. V. Description of the invention (1) Party V uses the unique moisture-proof 1 water coating of the present invention; The durable and waterproof and moisture-proof donkey achieves better practical use. First, the traditional waterproof method and its disadvantages, the traditional method is two ways. In particular, the increase of a lot of flexible and non-adhesive paper is affected by the "folding line", the main reason is that the folding line is straight and back. F to: It has the effect of waterproofing and moisture-proofing, but it is also sticking waterproof film. Another-for the "coating method and disadvantages:" State description, thickness is positive, paper is not. It does not have a wet-proof paste, so it still has the following waterproofing agent. I, Γ series film is adhered. Its thickness is hard. (2) It is regarded as (3). The number of vertical j parts is to make a paper type. The "film surface; there must be ~, paper, and ^ is too bad) When the surface is" that ", the place and the surface are glued and closed, but why the waterproofing actually exists, and the back surface is easy to stick. Moisture-proof (air, water, and water film, there may be a waterproof film (adhesive film when the following on the paper is affixed to two layers of anti-use (such as thickening and waterproof crack)) may be protected. However, the paper around Thickness of the paper around), then the waterproofing disadvantages: 'When the water film of the paper must be increased, its thickness is too bulky, too /, and sticky' side, function. The risk of water film, "the thickness of the surrounding area sucks moisture, water Wet appearance

Page 6 593606 Case No. 90126247 Amendment V. Description of the Invention (2) 2. The "coating water-repellent agent" is to improve the "adhesion to the surface of the paper, and" mix and stick the following disadvantages: (1) Although it can be The effect of thin coating is not good, it can be said that the waterproof film causes the problem of "thickening", and the water-repellent agent of water-repellent agent; However, it is still on the paper surface, but the water-repellent agent penetrates into the paper fiber is the surface If it is coated, its adhesion is not good for a period of time, or if it is improperly wrinkled or temperature, it may disappear. (2) That is, it is not durable with paper, not suitable for a short-term, temporary factory

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Fiber penetration and binding force is not strong, so it is a waterproof function for a short time to prevent moisture and water. ------------ 1 Outline of the technology and purpose of the present invention I: ____________I The reason is that the present invention is an improvement of the traditional shortcomings described above, and provides an unprecedented moisture-proof and waterproof coating. The technology and purpose are as follows: Firstly, it is “set to be made of“ filler ”and made of paint, which can strengthen the paper fibers as a whole, not absorb the moisture on the paper surface, and have a strong binding force to prevent water from entering the paper. It is an excellent waterproofing agent mixed with "coating". It penetrates into the paper fibers and fills its pores, and the effect of moisture and non-absorption is strengthened by the filler, a barrier that does not adhere to water The role of fibers, and the water barrier coating can improve the durability of moisture and water. Effect, and can be applied to the paper surface in a liquid state, and

Page 593606 Case No. 90126247 Amendment V. Description of the Invention (3) It must be extremely thin, reach the thickness of almost no thick paper, and can withstand bending without the risk of cracking, achieving excellent practicality efficacy. In order to allow Jun Bureau's review members and those skilled in this art to fully understand the effects of the present invention, the following is a detailed description with drawings and an example: Please refer to Figure 1, which is a moisture-proof and waterproof paper coating. It is set to be a mixture of a filler and a paint; among them, the filler: is mixed with 34.6% ~ 54.95% water, 0.05% ~ 0.4% dispersant, and 45% ~ 65% mica powder. It is made with liquid alkali with a pH value of 9 ~ 10.5 to give a "swelling" effect to soften the mica powder, that is, to store it in a storage tank; Coating: 3% ~ 15% starch and polymer Vinyl alcohol, 0.5% ~ 4% water resistance agent, 0.5% ~ 4% bridging agent, 15% ~ 40% latex, stabilizer, water-repellent agent, surfactant and other mixed agents, 0.2 ~ 1.5% of lubricant and 0 · 2 ~ 1 · 5% of CMC / wet strength agent; Remix: Mix the above-mentioned coatings with fillers, and according to the nature of the original paper, Mix at 80.6% ~ 34%: 19.4% ~ 66%, that is, take 80.6% of the above fillers, and then mix the coatings mixed with each of the above agent ratios to make Tide, water waterproof barrier coatings can immediately provide the paper coating surface, or in a storage tank storing; by the above-described configuration, the present invention is used, the effect is hereby described in further detail

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593606 Case No. 90126247 Amendment V. Description of the invention (4) Under: When in use, it should be used in the process, and then its coating amount can be controlled to prevent moisture, and the water system of the "filler" of the hair can be adjusted to absorb water. The hygroscopicity is evenly distributed on the surface to form a water resistance. The liquid test system connects the above-mentioned system to a 6 to 12 g waterproof paper coated with a dispersant, and when the coated surface is The effect of the barrier, and the aspect, is a 10% moisture-proof and waterproof coating, which is conveyed to the machine, and the coating is coated on the surface of the base paper / m2. S, which can be dried and rolled up, and the product ° Here are the explanations as follows: The mother powder can be described as a tiny cloud, which is an excellent combination. In the case of bulking powder (bending "the paint has a sticky effect, and the agent, Ancheng Yiguang combined with" practical softening tablets) can be peeled off ", the starch and the characteristic latex are slippery, no, reachability" Polyvinyl alcohol, function, its resistance can strengthen the coating can make each agent can get better moisture-proof surface:

Mica powder, liquid test, and mica powder is not dispersant with the dispersant when the paper surface, so the shape of the mica powder, just like to prevent the invasion of water on the paper surface. A chemical agent that can soften mica flakes. Mica flakes are treated with liquid alkali to make the mica a so-called "swelling treatment", so that the mica is on the surface of the paper and is flexible, preventing the paper from becoming available and increasing the filling. Paper fiber pores, hydrating agents and water-repellent agents can obtain the binding force that repels water to adhere to the paper surface. In addition, the bridge is fully mixed, and the lubricant can act on the surface, so it can be made of paper. Outside, waterproof.

593606 a Amendment No. 90126247 V. Description of the invention (5) From the above description, the coating of the present invention has excellent thirst-proofing and waterproofing effects, and has strong binding force with the paper surface, especially the paper fiber , Pores t, due to λ, can # μ, externally block the effects of moisture and moisture. In addition, because of the above-mentioned effect, it can be coated on the paper surface very thinly (the coating amount is about 6 ~ 12g / nf.S), so the effect of not excessively thickening the thickness of the paper can be obtained, and it is due to the penetration of the paper fiber capillaries The moisture-proof and water-proof effect in the holes, and it has good durability and can be wrinkled to achieve excellent practical effects. In addition, according to the above-mentioned technologies, formulas and ideas, the present invention can also be implemented as follows: first take out 80.6% ~ 34% of the swelling filler, and then mix 3% ~ 15% of the powder and Polyethyl alcohol, 0.5% ~ 4% water resistance agent, 0.5% ~ 4% bridging agent, 15% ~ 4% latex, stabilizer, water-repellent agent, surfactant, 0.2% ~ 1.5% of lubricant, 0.2% ~ 1.5% of CMC / wet strength agent, also belong to the creative scope of the equivalent implementation of the present invention. In summary, the invention is in "waterproof paper" articles. The field is indeed an unprecedented creation of t, and the practicability achieved is indeed extremely valuable. It is in line with the provisions of the Patent Law, and I would like to ask for a patent. Behuan Page 10

II 593606 _Case No. 90126247_ Year, Month, and Day Amendment Brief description of the diagram Brief description of the diagram: Figure 1 is a block diagram of the formula and process of the present invention

Claims (1)

593606 Amend ____ cable number 90126247 _ ± __ ^ Day six, the patent application for "encirclement protection" will be moisture-proof and waterproof; among them, 1 · A moisture-proof 'waterproof paper coating formulation paper coating' is set by mixing fillers and coatings Filler · Mixed with 34 · 6% ~ 54.95% water, 0.005% ~ 0.4% dispersant, 45% ~ 65% mica powder, and a pH value of 9 ~ 10.5 ^ liquid alkali, give "swelling" effect, soften mica powder, that is, store it in a storage tank; Coatings · 3% ~ 15% starch and polyvinyl alcohol, 0.5% ~ 4% Water-resistant agent, 0.5% ~ 4% bridging agent, 15% ~ 40% latex, stabilizer, water-repellent agent, surfactant and other mixed agents, 0.2 ~ 1.5% lubricant, 0 · 2 ~ 1 · 5% of CMC / wet and strong agent mixed; Remixing: Take the above material at 80 · 6 and apply it to the capillaries through the above 2. If prepared ; Its ~ 34% of starch and the above coating% ~ 3 4% of 80% of the filler into a moisture-proof, concrete surface, which can be made into a moisture-proof and anti-patent application. Polyvinyl alcohol: 19.4% ~ 66.6%, mixed with waterproof water barrier or stored in a storage tank with water paint on paper. The first filler in the range is mixed filler with paint, and then 0.5% to 4%, and it is mixed uniformly according to the nature of the original paper. , Can provide immediate storage; strong binding force, penetration of paper fiber, moisture-proof, waterproof paper coatings can be set to take out 80. 6%, respectively, sequentially mix 3% ~ 15% of the water-resistant agent 0.5% ~ 4% 593606 Page 13