Manufacturing method of plastic-free traditional Chinese medicine packaging paper containing traditional Chinese medicine components and upstream and downstream processes of plastic-free traditional Chinese medicine packaging paper

Abstract

The invention provides a manufacturing method and upstream and downstream processes of plastic-free traditional Chinese medicine packaging paper containing traditional Chinese medicine components, and belongs to the technical field of packaging paper manufacturing and processing.The method comprises the steps of fibration treatment of wood traditional Chinese medicine plants and extraction of active ingredients, modification processing of wood chemical method paper pulp and preparation of water-based paint special for the traditional Chinese medicine packaging paper. Manufacturing raw paper of the traditional Chinese medicine packaging paper; and coating the traditional Chinese medicine packaging paper. The paper structurally comprises fiber layer body paper and a functional coating layer. In the technical level, the raw paper relates to active ingredients extracted from wood traditional Chinese medicine plants through a mechanical method at low temperature, the traditional Chinese medicine active ingredients in plant fiber cavities are poured and cured, and the coating relates to a plastic-free formula and a processing method. Through innovative construction of the raw paper fibers and the coating, the paper is endowed with special properties such as antibiosis, insect prevention, moisture prevention, water resistance, high air permeability and the like on the premise of not using plastics and chemicals.

Description

Technical Field

[0001] The invention relates to the technical field of packaging paper manufacturing and processing, in particular to a manufacturing method of plastic-free Chinese medicine packaging paper containing Chinese medicine ingredients and its upstream and downstream processes. Background Art

[0002] In general, wrapping paper is a material widely used for product packaging. Generally speaking, it is made of plant fibers and various chemicals. Wrapping paper for different products and different application scenarios has specific requirements in terms of physical strength, moisture resistance, water resistance, oil resistance, oxidation resistance, and oxygen and air barrier. In order to meet these requirements, there are large differences in the selection of plant fibers and the chemicals added. First of all, in terms of plant fibers, according to pulping technology, they are divided into chemical pulp fibers, mechanical pulp fibers, and chemical mechanical pulp fibers. The characteristics of chemical pulp are that the lignin of the plant is removed, the fiber purity is high, and the fiber flexibility and strength are high. Chemical pulp fibers are divided into coniferous chemical pulp fibers and broadleaf chemical pulp fibers according to the different wood. Coniferous chemical pulp fibers are relatively long, coarse, and have large fiber cavities. Broadleaf wood fibers are relatively short, thin, and have small cavities. Mechanical pulp generally uses a grinding disc to crush plants. There is no removal of lignin, but only plant fiberization. It is characterized by low strength and no so-called fiber cavities.

[0003] Papermaking chemicals include many categories, which can be divided into chemicals added to the pulp and chemicals coated on the surface of paper. In-slurry sizing agents and reinforcing agents are added to the pulp, while surface glue and coatings are used on the surface of paper. Starch and modified starch are the most common sizing agents, which can be used in both the pulp and the surface of paper. With the improvement of paper performance requirements, synthetic AKD (alkyl ketene dimer) and ASA (alkenyl succinic anhydride), PVA (polyvinyl alcohol) sizing agents are widely used. The reinforcing agents added to the pulp mainly improve the dry strength and wet strength of paper, including polyacrylamide, urea-formaldehyde resin, melamine resin, polyethyleneimine, and polyamide epichlorohydrin. Coatings belong to paper processing chemicals, and coatings can give paper many properties, such as waterproof and oil-proof. The binder of these coatings is latex, such as styrene-butadiene latex, styrene-acrylic latex, polyacetate latex, acrylic latex, etc. In summary, chemically synthesized papermaking chemicals are widely used. These resins, latex, and plastic particles exist not only between paper fibers, but also in the layers on the surface of paper. The use of this type of plastic-containing paper in the fields of food, medicine, and agriculture poses huge safety risks. Therefore, it is necessary to develop and use plastic-free paper in specific fields.

[0004] There are few effective invention patents for paper specifically used for packaging traditional Chinese medicine. Chinese patent CN202011279703 discloses a packaging bag for traditional Chinese medicine granules and its preparation method, the main raw material of which is low-density polyethylene, and the molding method is blow molding. Chinese patent CN202011279679 discloses a mildew-proof packaging bag for traditional Chinese medicine beverages and its processing method, which adopts polymer and maleic anhydride grafted polyethylene, and the molding method is melt casting film forming. Traditional Chinese medicine packaging paper includes paper bag paper, which can be used to hold Chinese herbal medicines and Chinese patent medicine granules. Chinese patent CN202110782505 discloses a method for manufacturing high-permeability paper bag paper, which is characterized by the pressure zone and pressure setting of the paper machine. Chinese patent CN202210584111 discloses a high-permeability stretch paper bag paper and its preparation method, which is characterized by the pressure control of pulp in the pulping process to regulate the air permeability of the paper bag paper. Chinese patent CN202111683227 discloses a recyclable waterproof and oil-proof paper bag and its preparation method, and an environmentally friendly bag, which is mainly prepared by acrylic emulsion of waterproof layer and oil-proof layer.

[0005] As people pay more attention to health, Chinese medicine packaging paper and paper bag paper are beginning to move towards plastic-free. Plastic-free paper materials have weak insect-proof, waterproof, oil-proof, moisture-proof and microbial-proof capabilities, and generally need to add some functional additives and agents. Functional additives are mainly waterproof, oil-proof and moisture-proof, and agents are mainly for insect-proof and microbial-proof. The hygienic safety issues of functional additives and agents also need to be verified. Summary of the invention

[0006] The technical task of the present invention is to solve the deficiencies of the prior art and provide a method for manufacturing plastic-free Chinese medicine packaging paper containing Chinese medicine ingredients and its upstream and downstream processes. If all the additives required to be added are derived from plants or organisms, and the required added agents are derived from Chinese herbal medicines, then the sanitation and health of Chinese medicine packaging paper and paper bag paper will undoubtedly be further improved.

[0007] The technical solution of the present invention is implemented in the following manner. The manufacturing method of a plastic-free Chinese medicine packaging paper containing Chinese medicine ingredients and its upstream and downstream processes of the present invention are as follows: The present invention provides a method for fiberizing a woody Chinese medicinal plant and extracting active ingredients, the method comprising: Step 1: soaking: soaking the crushed woody Chinese medicinal plants in a polybasic weak acid and strong base salt solution, adding an antioxidant to the soaking system, and controlling the amount of the weak acid and strong base salt so that the end point pH of the liquid after soaking is in the range of 7.0-9.6; Woody Chinese medicinal plants include, but are not limited to, woody Chinese medicinal plants rich in high-fat pectin, rich in tannins and flavonoids, rich in lignans, terpenes and glycosides, rich in nicotine, and rich in alkaloids; Step 2: Mechanical fiberization treatment: Mechanical fiberization treatment of the soaked Chinese medicinal plants, using multiple grinding processes, the gap of the final grinding is smaller than the width of the Chinese medicinal plant fiber by 2-5 μm, so as to achieve the purpose of completely releasing the Chinese medicinal ingredients; Step 3: extrusion filtration: extruding the slurry to obtain mechanical Chinese medicinal plant fiber and a filtrate containing Chinese medicinal active ingredients. The hydroxyl and carboxyl groups of the Chinese medicinal active ingredients in the filtrate are ionized under weak alkaline conditions and dissolved in the form of sodium salt.

[0008] A modification and processing method of wood chemical pulp of the present invention comprises: Step 2.1: Screening of chemical pulp fibers: Commercial chemical pulp is used as raw material, and a 60-mesh screen is used to screen out fibers with a length less than 0.25 mm, and pulp with a length greater than 0.25 mm is collected for use; Step 2.2: Dispersing chemical pulp: The debonding concentration is 5%-10%, and the debonding water is the filtrate of step 3 in the method for fiberization treatment and active ingredient extraction of a woody Chinese medicinal plant as claimed in claim 1; Step 2.3: Introducing Chinese medicinal ingredients into the cell cavity of chemical plasma fibers: The uniformly dispersed slurry is then processed in a micro-jet high-pressure homogenizer. The air in the fiber cell cavity is driven out by the pressure change inside the high-pressure homogenizer, and the Chinese medicine ingredients are introduced into the fiber cell cavity. Step 2.4: Fixation of Chinese medicinal ingredients in the lumen of chemical pulp fibers by precipitation method: The slurry from the homogenizer is added with a fixing agent to fix the Chinese medicine components in the cavity. The fixing agent is a soluble calcium salt solution or an iron solution. The amount of calcium / iron ions is stoichiometrically equal to the total amount of anions in the system. The materials are stirred to make the Chinese medicine active ingredients containing carboxyl and hydroxyl groups react with the calcium / iron ions to form a precipitate, and the anions in the system react with the calcium / iron ions to form a precipitate, so as to achieve the purpose of blocking the cell cavity of the chemical slurry. Step 2.5: Physical blocking of Chinese medicine in the cavity of chemical pulp fiber cells: The slurry from the homogenizer is added with the Chinese medicinal plant fiber obtained in step 2 of the method for fiberization treatment and active ingredient extraction of a woody Chinese medicinal plant as claimed in claim 1; after being stirred and dispersed evenly, the material enters the microfluidizer for treatment again, and the plant particles are introduced into the fiber cell cavity through the pressure change inside the high-pressure homogenizer to achieve physical blocking; Modified chemical pulp is obtained.

[0009] The present invention discloses a method for preparing a special water-based coating for Chinese medicine packaging paper, wherein the formula ratio used in the method is: The water-soluble component of the coating adopts the pulping process liquid in step 2 of the method for fiberization treatment and extraction of active components of a woody Chinese medicinal plant as claimed in claim 1; The water-insoluble components of the coating include high-ester pectin, rosin, wax, drying vegetable oil, and terpenes; The natural emulsifier used in the coating includes but is not limited to lecithin, lanolin, beeswax, and sodium lignin sulfonate; The water-insoluble components of the coating are: high ester pectin (2-5wt%), rosin (2-5wt%), wax (2-10wt%), drying vegetable oil (20-50wt%), terpenes (0.01-0.2wt%); A natural emulsifier for the coating (2-5 wt %); The water-soluble components of the coating are: grinding process liquid (made up to 100%); The method comprises the following steps: preparing a special water-based coating for Chinese medicine packaging paper by high-speed shearing or micro-jetting the above water-soluble components, water-insoluble components and natural emulsifiers under closed or air-tight conditions.

[0010] A method for making base paper for traditional Chinese medicine packaging paper of the present invention comprises: Step 4.1: Ingredients: Raw materials (1) Base paper fibers include unmodified chemical pulp fibers; Raw material (2) the mechanical Chinese medicinal plant fiber grinding liquid in step 2 of the method for fiberization treatment and active ingredient extraction of woody Chinese medicinal plants as claimed in claim 1; Raw material (3) modified chemical pulp finally obtained by the modification processing method of wood chemical pulp according to claim 2; Step 4.2: Raw material processing: Raw materials (1) and raw materials (2) are pulped separately, and raw material (3) is lightly pulped or not pulped; Step 4.3: The raw materials (1), (2), and (3) processed in the above steps are mixed and then fed into a paper machine. The pulp fiber is diluted by using the filtrate of step 3 in the method for fiberization of a woody Chinese medicinal plant and extraction of active ingredients as claimed in claim 1. The process water (white water) of the paper machine is closed and circulated. Obtain base paper for traditional Chinese medicine packaging paper.

[0011] 5. A coating processing method for Chinese medicine packaging paper, characterized in that the method is: Step 5.1: The raw material is the base paper for Chinese medicine packaging paper obtained by the method for making base paper for Chinese medicine packaging paper as described in claim 4. After the base paper is dehydrated and dried, it is coated with the water-based coating for Chinese medicine packaging paper obtained by the method for preparing the water-based coating for Chinese medicine packaging paper as described in claim 3; Step 5.2: Dry the coating into a film by using infrared irradiation or hot air in a non-contact manner; Step 5.3: Spray inorganic particles on the coating surface before the paper is curled. The amount of inorganic particles sprayed is 10-20g / m 2 .

[0012] Based on the above process methods, a method for manufacturing Chinese medicine packaging paper that is resistant to humid environments, a method for manufacturing antibacterial and insect-proof plastic-free Chinese medicine packaging paper, and a method for manufacturing highly air-permeable Chinese medicine packaging paper with a tea aroma are developed.

[0013] Compared with the prior art, the present invention has the following beneficial effects: The invention discloses a method for manufacturing a plastic-free Chinese medicine packaging paper containing Chinese medicine ingredients and its upstream and downstream processes, which comprises a fiber layer base paper and a functional coating layer in terms of paper structure. Technically, the base paper involves mechanical low-temperature extraction of active ingredients from woody Chinese medicine plants, infusion and solidification of Chinese medicine active ingredients in plant fiber cavities, and the coating involves a plastic-free formula and processing method.

[0014] The present invention imparts special properties such as antibacterial, insect-proof, moisture-proof, water-resistant, and high air permeability to paper through innovative construction of base paper fibers and coatings without using plastics and chemicals.

[0015] The manufacturing method of the plastic-free Chinese medicine packaging paper containing Chinese medicine ingredients of the present invention and its upstream and downstream process designs are reasonable, the process is safe and reliable, the use is convenient, and large-scale production is easy, and the value of popularization and use is very good. DETAILED DESCRIPTION

[0016] The following is a detailed description of a method for manufacturing a plastic-free Chinese medicine packaging paper containing Chinese medicine ingredients of the present invention.

[0017] Embodiment (I) The present invention firstly relates to a method for extracting effective ingredients from woody Chinese medicinal plant raw materials and preparing mechanical fibers, which is characterized by comprising the following steps: S1.1. Woody raw materials for traditional Chinese medicine are plants rich in traditional Chinese medicine ingredients and containing cellulose, including but not limited to: cotton stalks and vitex gracile, peach trees, and apricot trees rich in high-fat pectin; persimmon trees, lacquer trees, paper mulberry trees, orange trees, oak trees, and mulberry trees rich in tannins and flavonoids; cassia tree, Millettia reticulata, Allium palmatum, and Eucommia ulmoides that are rich in lignans, terpenes, and glycosides; tobacco straw that is rich in nicotine; and tea trees, camptotheca acuminata, Cephalotaxus fortunei, and Pinus koraiensis that are rich in alkaloids.

[0018] S1.2. Mechanically crush the plants, and the length and width of the crushed materials are both less than 5mm. Add polybasic weak acid and strong base salt solutions such as sodium carbonate, sodium oxalate, and sodium phosphate. The amount of weak acid and strong base salts is 2-6% of the mass of the Chinese medicinal plants. Soak the plants. The mass ratio of solution to plant is 3:1~5:1. The soaking temperature is 15-45 ℃ and the soaking time is 30-120 minutes. Add vitamin A\C antioxidants to the soaking system to prevent oxidation of active substances.

[0019] S1.3. After soaking, the Chinese medicinal plants are repeatedly refined with different finenesses by wet method. The preferred method is to use double-disc grinding for three times, and the spacing between the grinding discs is 800~500 μm, 400~100 μm, and 40~15 μm, respectively. In the multiple refining process, the gap of the last refining is related to the size of the Chinese medicinal plant fiber, and the preferred spacing is 2~5 μm larger than the width of the Chinese medicinal plant fiber. The refining concentration (solid material mass / total material and water mass) is 15~10%, 10~6%, and 6~2%, respectively. The preferred refining concentration can make the grinding zone temperature lower than 60 ℃.

[0020] S1.4, extruding the slurry to obtain mechanical Chinese medicinal plant fibers and a filtrate containing active ingredients of Chinese medicinal herbs. The hydroxyl and carboxyl groups of the active ingredients of Chinese medicinal herbs in the filtrate are ionized under weakly alkaline conditions and dissolved in the form of sodium salt.

[0021] The above-mentioned method for extracting active ingredients of traditional Chinese medicine has undergone innovative design in terms of material selection, chemical use, process parameters, process environment, etc. First, conventional traditional Chinese medicine extraction is decocted, which is suitable for grass plants. The addition of chemicals in the present invention is to destroy polysaccharides such as pectin and chitin in woody plants and improve the extraction rate. Secondly, in terms of process parameters, the degradation and denaturation of traditional Chinese medicine ingredients are reduced by controlling the temperature below 60°C. The control of mechanical refining concentration reduces the high temperature generated by frictional heat through concentration, thereby reducing the degradation and denaturation of traditional Chinese medicine ingredients. The present invention mainly adopts low-concentration refining, and the maximum temperature of the grinding zone is controlled below 60°C, which can avoid the degradation of traditional Chinese medicine ingredients at high temperatures. This is different from the CTMP and APMP processes in the pulping industry. The specific differences are shown in Table 1.

[0022] Table 1 Relationship between pulp concentration and grinding zone temperature .

[0023] * BCTMP Bleached Chemi-Thermo-Mechanical Pulp, APMP Alkaline Peroxide Mechanical Pulp.

[0024] The mechanical fiber preparation method of the Chinese medicinal plant in the present invention is different from the current conventional CTMP, BCTMP, and APMP in terms of process, process parameters, and chemicals, as shown in Table 2.

[0025] Table 2 Differences between the preparation process of woody Chinese medicinal plant fibers and the industrial CTMP, BCTMP, and APMP processes .

[0026] * CTMP is chemi-thermo-mechanical pulp, BCTMP is bleached chemi-thermo-mechanical pulp, APMP is alkaline peroxide mechanical pulp.

[0027] In addition to flavonoids and polyphenols, Chinese medicinal plants also contain polysaccharides such as pectin, gum arabic, gum tragacanth, guar gum, and agar. The hydroxyl groups of these polysaccharides are usually acetylated, such as high-ester pectin. This makes these polysaccharides difficult to dissolve in water, and the active ingredients of flavonoids and polyphenols in Chinese medicine are coated by these polysaccharides in plant tissues and are also difficult to dissolve. After our laboratory research and screening of many alkaline chemicals, we found that polybasic weak acid and strong base salt solutions can hydrolyze acetylated polysaccharides, dissolve them, and then release the active substances of Chinese medicine. The experimental data are shown in Table 3. Obviously, the polysaccharide extraction rate of sodium oxalate is above 80%, which is significantly higher than the extraction of polysaccharides by sodium hydroxide. The dissolution of polysaccharides is beneficial to the exposure of polyphenols, which is why the extraction of polyphenols by sodium oxalate is better than that by sodium hydroxide.

[0028] Table 3 Relationship between sodium oxalate dosage and cotton stalk pectin dissolution .

[0029] Embodiment (II) The present invention provides a method for modifying coniferous wood chemical pulp, the purpose of which is to introduce and fix the Chinese medicine cost into the pulp fiber. The technical scheme is to use a micro-jet high-pressure homogenization method to inject, and a precipitation method or a physical blocking method to fix. The method is characterized by comprising the following steps: S2.1 Screening of chemical pulp fibers: Use commercial chemical pulp as raw material, the diameter of the selected chemical pulp fibers is 25-75μm, and the fiber cavity wall thickness is 2-5μm. Use a 10-100 mesh sieve to screen out fibers with a length of less than 0.15 mm. Preferably, use a 60 mesh sieve to screen out fibers with a length of less than 0.25 mm, and collect pulp with a length of more than 0.25 mm for use.

[0030] S2.2 Deflaked dispersed chemical pulp: the deflaking concentration is 5-10%, the deflaking water is a liquid containing Chinese medicinal ingredients, and the concentration is 100mg / L-1000mg / L. Preferably, the deflaking water is the filtrate described in claim 1.

[0031] S2.3 Introducing Chinese herbal medicine ingredients into the cell cavity of chemical pulp fibers: The uniformly dispersed pulp is dispersed and sent into a microfluidizer for processing. The cavity diameter is selected to be 300±100 μm, and the pressure is selected to be 150±50 Mpa. The air in the fiber cell cavity is driven out through the pressure change inside the high-pressure homogenizer, and the Chinese herbal medicine ingredients are introduced into the fiber cell cavity at the same time.

[0032] S2.4 Fixing Chinese medicine in the cell cavity of chemical pulp fiber by precipitation method: Add soluble calcium salt solutions such as calcium chloride, calcium dihydrogen phosphate, calcium nitrate, calcium gluconate, or add ferric sulfate, ferric chloride, and ferric nitrate solutions to the pulp coming out of the homogenizer. The amount of calcium ions or iron ions is stoichiometrically equal to the sum of anions (carbonate, oxalate, phosphate, hydroxyl, and carboxyl) in the system. Stir the materials so that the active ingredients of Chinese medicine containing carboxyl and hydroxyl groups react with calcium / iron ions to form precipitates, and the carbonate, oxalate, and phosphate in the system react with calcium / iron ions to form precipitates, thereby achieving the purpose of blocking the cell cavity of chemical pulp.

[0033] S2.5 Physical method to block the Chinese medicine in the cell cavity of chemical pulp fiber: add 20-40wt% of the solid content of the slurry to the slurry coming out of the homogenizer, and the plant particles have a particle size of 20~60 μm, and the plant particles are sieved sawdust. Preferably, the plant particles are the mechanical Chinese medicine plant fibers in claim 1. After stirring and dispersing evenly, the material enters the micro-jet high-pressure homogenizer for processing again, the cavity diameter is selected to be 300±100 μm, and the pressure is selected to be 250±50 Mpa. The plant particles are introduced into the fiber cell cavity through the pressure change inside the high-pressure homogenizer to achieve physical blocking.

[0034] The active ingredients of traditional Chinese medicine are water-soluble and can be poured into the cavity of plant fibers, but the amount of pouring is related to the size of the fiber. The thicker and longer the fiber, the larger the cavity space, and the larger the storage capacity of traditional Chinese medicine ingredients. If the fiber is very thick but short, the poured traditional Chinese medicine is easy to lose. This requires the selection of long fibers. The laboratory studied the relationship between fiber screening and the amount of drug retention in the cavity. The fiber selected was commercial pine chemical pulp. The 40 mesh, 60 mesh, 80 mesh, 100 mesh, 160 mesh, and 200 mesh filters in Table 4 were used to screen the retained fibers and use them as carriers of traditional Chinese medicine. Tannin was selected as a simulant of plant polyphenols. After pouring tannin with a high-pressure homogenizer, the fiber slurry was placed in a Buchner funnel and filtered on filter paper to form a filter layer. Then, the filter layer was washed with water 100 times the mass of the fiber. Then, the proportion of tannin retained in the fiber was calculated by measuring the quantitative relationship between the tannin in the filtrate and the tannin originally added. The results are shown in Table 4.

[0035] Table 4 Relationship between fiber screening mesh and tannin fixation efficiency .

[0036] In addition, the screening of fibers is also important for the performance of paper. For paper used to package herbs, especially when the herbs are not completely dried, the packaging paper bags must have high air permeability to prevent the herbs from getting moldy and rotting. For the processed Chinese medicine granules, which are completely dry, the paper packaging bags at this time require very low air permeability to prevent moisture from entering. Therefore, the air permeability of paper needs to be regulated. An important means is to screen the fiber length. Paper with long fibers and coarse fibers has excellent air permeability, while short and thin fibers, especially after being beaten by silk brooming, have greatly reduced air permeability. The laboratory screened commercial pine chemical pulp and used fibers larger than the sieve size to make paper with a quantitative of 80g / m 2 The paper samples were measured by Schober air permeability and moisture permeability, and the results are listed in Table 5. The results show that the air permeability and moisture permeability of base paper are closely related to the length of fiber. The longer the fiber, the higher the air permeability and moisture permeability, and the shorter the fiber, the lower the air permeability and moisture permeability of paper.

[0037] Table 5 Relationship between fiber screening and paper air permeability and moisture barrier .

[0038] After the active ingredients of traditional Chinese medicine are introduced into the cavity of chemical pulp fiber, the ingredients of traditional Chinese medicine are still soluble. In the subsequent papermaking process, there is a pressing and dehydration link. Pressing and dehydration will cause the ingredients of traditional Chinese medicine in the cavity to flow out with the liquid under pressure and be lost. Therefore, the ingredients of traditional Chinese medicine in the cavity of chemical pulp fiber must be fixed. This patent designs fixation by precipitation method and particle blocking method. The precipitation method uses a fixative. Taking tannin as an example, calcium salts such as calcium chloride, calcium dihydrogen phosphate, calcium nitrate, and calcium gluconate are added to the slurry, or iron sulfate, iron chloride, and iron nitrate solutions are added. These divalent metal ions act as fixatives and will react with the traditional Chinese medicine ingredient tannin to generate precipitated particles, block the fiber cavity, and then fix the traditional Chinese medicine ingredients. Adding calcium ions will also react with sodium carbonate in the system to generate calcium carbonate. Adding iron ions will not only generate iron hydroxide floccules, but also react with tannins to form insoluble substances, thereby solidifying tannins in the fiber cavity. Similarly, if the alkaline system contains soluble pectin, gum arabic, gum tragacanth, guar gum, agar, etc., divalent cations such as calcium ions and iron ions will combine with the hydroxyl groups of these polysaccharides to precipitate them and then remain in the fiber cavity. The laboratory studied the experiment of calcium chloride and ferric sulfate solution to retain tannins in the fiber cavity. 1 kg of pine chemical pulp, 10 liters of total liquid volume, 50 grams of tannin added, after passing through a high-pressure homogenizer, after leaching the pulp, it was determined that 39.5 grams of tannins were still in the fiber cavity. Three experiments were designed in parallel. After passing through the homogenizer, one sample was not added with a fixative, one sample was added with 20 grams of ferric sulfate, and one sample was added with 10 grams of calcium chloride. After being fully stirred for 30 minutes, the extrusion dehydration and leaching treatment were repeated three times. The tannin concentration in the filtrate was determined, and the retention rate of tannin in the fiber was calculated. The results are shown in Table 6. From the data, it can be seen that without adding fixative, after three squeezing dehydration and rinsing treatments, the tannin retention rate is only 2%, while after adding fixative, the tannin retention rate is about 90%.

[0039] Table 6. Retention rate of tannin in pulp fiber cavity by different fixatives .

[0040] Embodiment (III), the present invention also relates to a plastic-free coating formulation and preparation method suitable for Chinese medicine packaging paper, which is characterized by comprising the following aspects: S3.1. This paint is a water-based paint, and its water-soluble components, water-insoluble components, fillers, and emulsifiers are all derived from nature, including plants, animals, and minerals.

[0041] S3.2. The water-soluble components of the coating include tannins, plant polyphenols, alkaloids, nicotine, flavonoids, and glycosides (0.2-2wt% each), which play the role of anti-oxidation, microbial inhibition, and insect prevention in the coating. The water-soluble compounds are purchased from commercial sources or the process fluid of the above-mentioned mechanical pulp; S3.3. The water-insoluble components of the coating include high-ester pectin (2~5wt%), rosin (2~5wt%), wax (2~10wt%), drying vegetable oil (20-50wt%), and terpenes (0.01-0.2wt%), which play the role of adhesive, waterproofing agent, and film-forming agent in the coating.

[0042] S3.4. The fillers of the coating can be selected from conventional mineral particles, such as calcium carbonate, kaolin, silica, talc, etc.

[0043] S3.5. Emulsify water-insoluble ingredients to prepare water-based coatings using natural emulsifiers (2-5%), including but not limited to lecithin, lanolin, beeswax, and sodium lignin sulfonate.

[0044] S3.6. Prepare water-based coatings by high-speed shearing or microfluidization in a closed or airtight environment.

[0045] The outstanding feature of this coating formula is that it contains active ingredients of traditional Chinese medicine and is suitable for traditional Chinese medicine packaging paper. The special feature of these traditional Chinese medicine ingredients is that they come from the pulping process liquid of mechanical pulp of traditional Chinese medicine. The water-insoluble components in the coating are all derived from natural plants, rather than organic synthetic resins used in conventional paper (such as styrene-butadiene latex, styrene-acrylic latex, polyacetate latex, acrylic latex, etc.). These natural water-insoluble components are emulsified and dispersed into tiny droplets to prepare water-based coatings. Unlike solvent-based coatings, water-based coatings do not contain organic solvents and are environmentally friendly and healthy.

[0046] Embodiment (IV), the present invention also relates to the pulp preparation and base paper making process of plastic-free Chinese medicine packaging paper: S4.1. The base paper pulp includes the thermomechanical pulp (10-40%) described in Example (I), the modified chemical pulp (10-30wt%) described in Example (II), and conventional chemical wood pulp (50-60wt%).

[0047] S4.2. Conventional chemical wood pulp and the thermomechanical pulp described in Example (I) are pulped separately, and the modified chemical pulp described in Example (II) is not pulped.

[0048] S4.3. All types of pulp are mixed and then fed into the paper machine. The pulp is diluted with the process water in step 2 of Example (I).

[0049] S4.4. The process water (white water) of the paper machine is in closed circulation and the paper sheet temperature in the drying cylinder temperature zone is below 100°C.

[0050] This pulp preparation and base paper making process are different from the conventional ones. First, the modified chemical pulp is not beaten to prevent the loss of the Chinese medicine components contained in the pulp fibers. Second, the dilution water used for pulp preparation comes from the process water in step 2 of Example (I), and this process water contains Chinese medicine components. Finally, the drying cylinder temperature for paper sheet drying is lower than 100°C to prevent the inactivation of Chinese medicine components.

[0051] Embodiment (V) The present invention relates to a coating process for plastic-free Chinese medicine packaging paper: S5.1. The coating is accelerated to dry and form a film by non-contact methods such as infrared irradiation or hot air.

[0052] S5.2. Spray inorganic particles on the coating surface before the paper is rolled up, including but not limited to calcium carbonate, talcum powder, kaolin, silicon dioxide, and the powder spraying amount is 10-20g / m 2 .

[0053] Because the film-forming material of water-based paint is dry vegetable oil, no drying agent (usually containing toxic metal oxides such as cobalt, manganese, lead, iron, zinc and calcium) is added, and no chemical cross-linked curing resin is used, the dry vegetable oil dries slowly, so it is not suitable to use contact drying cylinder drying, but non-contact infrared and hot air to prevent the undried paint from sticking. Secondly, spraying powder before paper winding is also to prevent the paint from sticking.

[0054] Embodiment (six), a method for manufacturing a traditional Chinese medicine packaging paper resistant to humid environments, specifically comprises the following steps: S6.1 Extraction of cotton phenol and pectin from cotton stalks and preparation of cotton stalk fibers by mechanical method: Cotton stalks were soaked in 10g / L sodium oxalate solution. After preliminary crushing, the length and width of the material were both less than 5mm. The soaking concentration was 5%, the soaking temperature was room temperature, and 0.1% of the mass of cotton stalks vitamin C was added to the system. The material was successively ground at a grinding disc spacing of 200 μm (grinding concentration 10%), 60 μm (grinding concentration 6%), and 10 μm (grinding concentration 4%) to obtain mechanical cotton stalk fibers. The highest temperature of the grinding disc area was 55°C. The pulp was subjected to spiral filtration and solid-liquid separation to obtain cotton stalk fibers and a filtrate rich in cotton phenol and pectin.

[0055] S6.2 Modification of coniferous chemical pulp: Coniferous chemical pulp is purchased commercially in the form of pulp boards. Put it into a hydraulic deflaking machine with a deflaking concentration of 5%. Pass it through a 120-mesh screen to screen out fibers with mesh sizes higher than 100 for use. Add the filtrate rich in cottonphenol and pectin described in step (6.1) during the stirring and deflaking process. The dispersed slurry is pumped into a microjet high-pressure homogenizer with a cavity diameter of 200 μm and a pressure of 150 Mpa. Calcium chloride is added to the slurry coming out of the homogenizer, and the amount of calcium ion substances is ≥ the amount of oxalate substances in the system. Stir the material to form particle precipitations such as calcium oxalate, plant polyphenol calcium, and calcified pectin to achieve the fixation of active substances in the chemical pulp cell cavity.

[0056] S6.3 Base paper fiber ratio and papermaking of traditional Chinese medicine packaging paper: The mass fraction of base paper fiber is 20% of modified natural pine chemical pulp fiber, 40% of cotton stalk fiber described in step (6.1), and 30% of modified chemical pulp fiber described in step 6.2. After the fiber is mixed, wet papermaking is performed, and the white water of the paper machine is closed and circulated. The base paper weight is controlled to 80 g / m 2 ; After the paper sheet (base paper) is dehydrated and dried, it is supercalendered to a density of 1.16 g / cm 3 .

[0057] S6.4 Preparation of water-based coating and base paper coating: The coating formula is high-ester pectin (2wt%), shellac (2wt%), gum rosin (2wt%), wax (8wt%), dry vegetable oil (20wt%), the filtrate described in step (6.1) (60wt%), and lecithin (6wt%). The water-based coating is prepared by high-speed shearing or high-pressure homogenization. The coating is coated on both sides of the base paper, and the single-side coating amount is controlled to 6 g / m 2 ; Apply powdered calcium carbonate, using heavy calcium carbonate with an average particle size of 50μm and a spraying amount of 10 g / m 2 After testing, the properties of the prepared traditional Chinese medicine packaging paper are as follows: tensile index 74N.m / g, tear index 12 mN.m 2 / g, burst resistance index 3.9Kpa.㎡ / g, water vapor transmission rate 38.6 g / (m 2 .d), moisture permeability coefficient 5.6e-12 g.cm / cm 2 .s.Pa.

[0058] Embodiment (VII) A method for manufacturing antibacterial and insect-proof plastic-free Chinese medicine packaging paper comprises the following steps: S7.1 Extraction of anacardic acid and urushiol from lacquer wood (lacquerwood) and fiber preparation: 1000 g of lacquer wood was crushed, 50 g of sodium carbonate, 2 g of vitamin C, 5000 g of water were added, mixed, and airtightly isolated and soaked at room temperature for 2 hours. Then the material was pulped in a closed condition at a grinding disc spacing of 100 μm (grinding concentration 8%), 50 μm (grinding concentration 5%), and 12 μm (grinding concentration 4%) to obtain mechanical lacquer wood fiber. The maximum temperature of the grinding disc area was 50°C to prevent the raw lacquer (urushiol) from being cured by heat. The pulp was subjected to spiral filtration and solid-liquid separation to obtain lacquer wood fiber and a filtrate rich in anacardic acid and urushiol. The filtrate was isolated from air and stored in the dark.

[0059] S7.2 Modification of coniferous chemical pulp. Coniferous chemical pulp is purchased commercially in the form of pulp boards. 2500 grams are put into a hydraulic deflaking machine with a deflaking concentration of 5%. The lacquer tree filtrate described in step (7.1) is added during the stirring and deflaking process. The dispersed slurry is pumped into a micro-jet high-pressure homogenizer with a cavity diameter of 200 μm and a pressure of 150 Mpa. The slurry coming out of the homogenizer is added with all the lacquer wood fibers described in step (7.1). After being stirred and dispersed evenly, the material enters the micro-jet high-pressure homogenizer again for processing. The cavity diameter is selected to be 300±100 μm and the pressure is selected to be 250±50 Mpa. The plant particles are introduced into the fiber cell cavity through the pressure change inside the high-pressure homogenizer to achieve physical blocking of the active substances.

[0060] S7.3 Pulp ratio and papermaking of base paper, pulp composition: 10% natural pine chemical pulp (commercial), 90% softwood chemically modified pulp described in step (7.2). Natural pine chemical pulp is beaten to 40°SR. The softwood chemically modified pulp described in (7.2) is beaten to 25°SR. The pulps are mixed and adjusted to a suitable concentration, and the papermaking weight is 80 g / m 2 The base paper is made of high quality raw material and the white water of the paper machine is closed during the papermaking process.

[0061] S7.4 Formulation and preparation of water-based paint. The mass fraction ratios of the paint ingredients are as follows: tannin, cottonseed phenol (0.5wt% each), floating oil rosin (2wt%), wax (2wt%), drying vegetable oil (23wt%), process water from the pulping stage of mechanical pulping of lacquer tree and tobacco straw (70wt%), sodium lignin sulfonate (2.5%). The water-based paint is prepared by high-speed shearing.

[0062] S7.5 uses film transfer to coat the surface of base paper with water-based coating, and controls the coating amount on one side to 4 g / m 2 ; Apply powdered calcium carbonate, using heavy calcium carbonate with an average particle size of 50μm and a spraying amount of 10 g / m 2 After rewinding, the obtained traditional Chinese medicine packaging paper is antibacterial, anti-insect and plastic-free, and can be used to produce paper bags.

[0063] S7.6 After testing, the prepared paper samples had an antibacterial rate of more than 73% for Escherichia coli, Staphylococcus aureus, Candida albicans, Pseudomonas aeruginosa, Streptococcus pneumoniae, dermatophytes, and Candida albicans. After the paper sample weight loss test, the paper sample mass loss was less than 3% within 5 years. The termite test surface showed no obvious infestation within 2 years, and the mass loss was 4.3%. Compared with ordinary kraft paper, the termite test was severely infested within 10 days, with a mass loss of 78%.

[0064] Embodiment (eight), a method for manufacturing a high-permeability Chinese medicine packaging paper with tea aroma, specifically comprises the following steps: S8.1 Extraction of tea tree active substances and preparation of tea tree fiber. Mechanically crush the main trunk and side trunk wood of the tea tree. The length and width of the crushed material are less than 5mm. Soak the material in sodium phosphate aqueous solution. The amount of sodium phosphate is 4% of the tea tree. Add 0.2% of the mass of tea tree vitamin A, soaking concentration is 8%, soaking temperature is 30-40℃. The material is pulped for the first time at a grinding disc spacing of 100μm, and then pulped for the second time at a spacing of 15μm, with a pulping concentration of 4%. The material is squeezed by screw to obtain filtrate and tea tree fiber.

[0065] S8.2 Modification of coniferous chemical pulp. Coniferous chemical pulp is purchased commercially in the form of pulp boards. Put it into a hydraulic deflaking machine with a deflaking concentration of 5%. Pass it through an 80-mesh screen to screen out fibers with a mesh size higher than 80 for use. Add the filtrate described in step (8.1) during the stirring and deflaking process. The deflaked pulp is pumped into a micro-jet high-pressure homogenizer with a cavity diameter of 220 μm and a pressure of 80 Mpa. Calcium gluconate is added to the pulp coming out of the homogenizer in an amount of 5% of the mass of the tea tree. Sodium carbonate reacts with calcium gluconate. Calcium gluconate also reacts with tea polyphenols, caffeine, theophylline, etc. in the filtrate described in step (8.1) to fix the active substances in the chemical pulp cell cavity.

[0066] S8.3 Ratio and blending of base paper pulp: Ratio of base paper pulp: 20% hardwood chemical pulp (commercial pulp), 30% tea tree fiber described in step (8.1), 50% modified chemical pulp described in step (8.2).

[0067] 20% hardwood chemical pulp was pulped with a pulping concentration of 10% and a beating degree of 30°SR. The other two pulps were not pulped.

[0068] S8.4 Water-based paint formulation and preparation, the paint composition: tannin (5wt%), native starch (10wt%), gum rosin (7.5wt%), drying vegetable oil (15wt%), water from the mechanical pulp process in step (8.1) (60wt%), paraffin (2.5wt%). The water-based latex paint is prepared by high-pressure homogenization.

[0069] S8.5 Papermaking and coating, mixing the three pulps in step (8.3), wet papermaking, closed circulation of white water in the paper machine, control of the base paper weight at 100 g / m 2 The water-based coating in step (8.4) is applied on both sides, and the coating amount on one side is controlled to 2 g / m 2 ; Apply powdered calcium carbonate, using heavy calcium carbonate with an average particle size of 50μm and a spraying amount of 10 g / m 2 The test showed that the paper sample had a strong tea aroma. In addition, the air permeability of the paper sample was 30 μm / (Pa·s) and the burst index was 7.3 KPa·m 2 / g, tear strength 1200 mN.

Claims

1. A method for fiberizing woody Chinese medicinal plants and extracting active ingredients, characterized in that The method includes: Step 1: soaking: soaking the crushed woody Chinese medicinal plants in a polybasic weak acid and strong base salt solution, adding an antioxidant to the soaking system, and controlling the amount of the weak acid and strong base salt so that the end point pH of the liquid after soaking is in the range of 7.0-9.6; Woody Chinese medicinal plants include, but are not limited to, woody Chinese medicinal plants rich in high-fat pectin, rich in tannins and flavonoids, rich in lignans, terpenes and glycosides, rich in nicotine, and rich in alkaloids; Step 2: Mechanical fiberization treatment: Mechanical fiberization treatment of the soaked Chinese medicinal plants, using multiple grinding processes, the gap of the final grinding is smaller than the width of the Chinese medicinal plant fiber by 2-5 μm, so as to achieve the purpose of completely releasing the Chinese medicinal ingredients; Step 3: extrusion filtration: extruding the slurry to obtain mechanical Chinese medicinal plant fiber and a filtrate containing Chinese medicinal active ingredients. The hydroxyl and carboxyl groups of the Chinese medicinal active ingredients in the filtrate are ionized under weak alkaline conditions and dissolved in the form of sodium salt.

2. A method for modifying wood chemical pulp, characterized in that The method includes: Step 2.1: Screening of chemical pulp fibers: Commercial chemical pulp is used as raw material, and a 60-mesh screen is used to screen out fibers with a length less than 0.25 mm, and pulp with a length greater than 0.25 mm is collected for use; Step 2.2: Dispersing chemical pulp: The debonding concentration is 5%-10%, and the debonding water is the filtrate of step 3 in the method for fiberization treatment and extraction of active ingredients of a woody Chinese medicinal plant as claimed in claim 1; Step 2.3: Introducing Chinese medicinal ingredients into the cell cavity of chemical plasma fibers: The uniformly dispersed slurry is then processed in a micro-jet high-pressure homogenizer. The air in the fiber cell cavity is driven out by the pressure change inside the high-pressure homogenizer, and the Chinese medicine ingredients are introduced into the fiber cell cavity. Step 2.4: Fixation of Chinese medicinal ingredients in the lumen of chemical pulp fibers by precipitation method: The slurry from the homogenizer is added with a fixing agent to fix the Chinese medicine components in the cavity. The fixing agent is a soluble calcium salt solution or an iron solution. The amount of calcium / iron ions is stoichiometrically equal to the total amount of anions in the system. The materials are stirred to make the Chinese medicine active ingredients containing carboxyl and hydroxyl groups react with the calcium / iron ions to form a precipitate, and the anions in the system react with the calcium / iron ions to form a precipitate, so as to achieve the purpose of blocking the cell cavity of the chemical slurry. Step 2.5: Physical blocking of Chinese medicine in the cavity of chemical pulp fiber cells: The slurry from the homogenizer is added with the Chinese medicinal plant fiber obtained in step 2 of the method for fiberization treatment and active ingredient extraction of a woody Chinese medicinal plant as claimed in claim 1; after being stirred and dispersed evenly, the material enters the microfluidizer for treatment again, and the plant particles are introduced into the fiber cell cavity through the pressure change inside the high-pressure homogenizer to achieve physical blocking; Modified chemical pulp is obtained.

3. A method for preparing a water-based coating for Chinese medicine packaging paper, characterized in that The formula ratio used in this method is: The water-soluble component of the coating adopts the pulping process liquid in step 2 of the method for fiberization treatment and active component extraction of a woody Chinese medicinal plant as claimed in claim 1; The water-insoluble components of the coating include high-ester pectin, rosin, wax, drying vegetable oil, and terpenes; The natural emulsifier used in the coating includes but is not limited to lecithin, lanolin, beeswax, and sodium lignin sulfonate; The water-insoluble components of the coating are: high ester pectin (2-5wt%), rosin (2-5wt%), wax (2-10wt%), drying vegetable oil (20-50wt%), terpenes (0.01-0.2wt%); A natural emulsifier for the coating (2-5 wt %); The water-soluble components of the coating are: grinding process liquid (made up to 100%); The method comprises the following steps: preparing a special water-based coating for Chinese medicine packaging paper by high-speed shearing or micro-jetting the above water-soluble components, water-insoluble components and natural emulsifiers under closed or air-tight conditions.

4. A method for making base paper for Chinese medicine packaging paper, characterized in that The method includes: Step 4.1: Ingredients: Raw materials (1) Base paper fibers include unmodified chemical pulp fibers; Raw material (2) the mechanical Chinese medicinal plant fiber grinding liquid in step 2 of the method for fiberization treatment and active ingredient extraction of woody Chinese medicinal plants as claimed in claim 1; Raw material (3) modified chemical pulp finally obtained by the modification processing method of wood chemical pulp according to claim 2; Step 4.2: Raw material processing: Raw materials (1) and raw materials (2) are pulped separately, and raw material (3) is lightly pulped or not pulped; Step 4.3: The raw materials (1), (2), and (3) processed in the above steps are mixed and then fed into a paper machine. The pulp fiber is diluted by using the filtrate of step 3 in the method for fiberization of a woody Chinese medicinal plant and extraction of active ingredients as claimed in claim 1. The process water (white water) of the paper machine is closed and circulated. Obtain base paper for traditional Chinese medicine packaging paper.

5. A coating processing method for Chinese medicine packaging paper, characterized in that The method is: Step 5.1: The raw material is the base paper for Chinese medicine packaging paper obtained by the method for making base paper for Chinese medicine packaging paper as described in claim 4. After the base paper is dehydrated and dried, it is coated with the water-based coating for Chinese medicine packaging paper obtained by the method for preparing the water-based coating for Chinese medicine packaging paper as described in claim 3; Step 5.2: Dry the coating into a film by non-contact method of infrared irradiation or hot air; Step 5.3: Spray inorganic particles on the coating surface before the paper is curled. The amount of inorganic particles sprayed is 10-20g / m 2 .

6. A method for manufacturing a humid environment resistant traditional Chinese medicine packaging paper, characterized in that The method is based on the fiberization treatment and active ingredient extraction method of a woody Chinese medicinal plant as claimed in claim 1, and the steps include: Step 6.1 Extraction of cotton phenol and pectin from cotton stalks and mechanical preparation of cotton stalk fibers: The cotton stalks were soaked in a 10 g / L sodium oxalate solution. After the initial crushing, the length and width of the material were both less than 5 mm. The soaking concentration was 5% by mass, the soaking temperature was room temperature, and 0.1% of the mass of the cotton stalks of vitamin C was added to the system. The materials were successively ground at the grinding disc spacing of 200 μm (grinding concentration 10%), 60 μm (grinding concentration 6%), and 10 μm (grinding concentration 4%) to obtain mechanical cotton stalk fibers; the pulp was subjected to spiral filter pressing for solid-liquid separation to obtain cotton stalk fibers and a filtrate rich in cottonphenol and pectin; Step 6.2 Modification of softwood chemical pulp: Softwood chemical pulp is purchased commercially as a product in the form of pulpboard; Put it into a hydraulic deflaking machine with a deflaking concentration of 5%; pass it through a 120-mesh screen to screen fibers with mesh sizes higher than 100 for use; add the filtrate rich in cotton phenol and pectin described in step 6.1 during the stirring and deflaking process; pump the dispersed slurry into a microjet high-pressure homogenizer with a cavity diameter of 200 μm and a pressure of 150 Mpa; add calcium chloride to the slurry coming out of the homogenizer, with the amount of calcium ion substances being ≥ the amount of oxalate substances in the system; stir the materials to form calcium oxalate, plant polyphenol calcium, and calcified pectin, and fix the active substances in the chemical pulp cell cavity; and obtain modified chemical pulp fibers; Step 6.3 Base paper fiber ratio and papermaking of traditional Chinese medicine packaging paper: The mass fraction of the base paper fiber is 20% of the modified natural pine chemical pulp fiber, 40% of the cotton stalk fiber described in step 6.1, and 30% of the modified chemical pulp fiber described in step 6.2; Wet papermaking after fiber mixing, closed circulation of white water in paper machine, controlled basis weight of base paper at 80 g / m 2 ; After the paper sheet is dehydrated and dried, it is super calendered to a density of 1.16 g / cm 3 ; Step 6.4 Preparation of water-based coating and base paper coating: The coating formula is high ester pectin (2wt%), shellac (2wt%), gum rosin (2wt%), wax (8wt%), dry vegetable oil (20wt%), the filtrate rich in cottonpol and pectin described in step 6.1 (60wt%), and lecithin (6wt%), and the water-based coating is prepared by high-speed shearing or high-pressure homogenization; Water-based coating is applied on both sides of the base paper, and the coating amount on one side is controlled to 6 g / m 2 ; Coating powdered calcium carbonate, using heavy calcium carbonate with an average particle size of 50μm and a spraying amount of 10 g / m 2 ; The Chinese medicine packaging paper which is resistant to humid environment is obtained.

7. A method for manufacturing antibacterial and insect-proof plastic-free Chinese medicine packaging paper, characterized in that The method is based on the fiberization treatment and active ingredient extraction method of a woody Chinese medicinal plant as claimed in claim 1, and the steps include: Step 7.1: Extraction of anacardic acid and urushiol from Rhus verniciflua wood, namely Rhus verniciflua, and fiber preparation: 1000g of lacquered wood is crushed, 50g of sodium carbonate, 2g of vitamin C, and 5000g of water are added, mixed, and then sealed and airtight to soak at room temperature for 2 hours; Then, the material is refined under closed conditions at the intervals of 100 μm (refining concentration 8%), 50 μm (refining concentration 5%), and 12 μm (refining concentration 4%) grinding discs to obtain mechanical lacquer wood fibers; the maximum temperature of the grinding disc area is 50°C to prevent the raw lacquer (lacquer phenol) from being cured by heat; The slurry is subjected to spiral filter pressing to separate solid and liquid, and lacquerwood fiber and a filtrate rich in lacquer acid and lacquer phenol are obtained. The filtrate is isolated from air and stored away from light. Step 7.2: Modification of softwood chemical pulp: The coniferous wood chemical pulp is purchased commercially in the form of pulp boards. 2500 grams are put into the hydraulic deflaker with a deflaking concentration of 5%. During the stirring and dispersing process, the filtrate rich in anacardic acid and urushiol described in step 7.1 is added; the dispersed slurry is pumped into a microfluidizer with a cavity diameter of 200 μm and a pressure of 150 Mpa; The slurry from the homogenizer is added with all the lacquer wood fibers described in step 7.

1. After being stirred and dispersed evenly, the material enters the microfluidizer again for processing. The cavity diameter is selected to be 300±100 μm and the pressure is selected to be 250±50 Mpa. The plant particles are introduced into the fiber cell cavity through the pressure change inside the high-pressure homogenizer to achieve physical blocking of the active substance; To obtain chemically modified softwood pulp; Step 7.3: Pulp ratio and papermaking of base paper, pulp composition: 10% natural pine chemical pulp, 90% softwood chemically modified pulp as described in step 7.2; The natural pine chemical pulp is beaten to 40°SR; the coniferous chemical modified pulp described in step 7.2 is beaten to 25°SR; the pulps are mixed and adjusted to a suitable concentration, and the papermaking weight is 80 g / m 2 Base paper, closed circulation of white water from paper machine during papermaking; Step 7.4: Water-based coating formulation and preparation: The mass fraction ratio of the coating components is as follows: tannin + cottonwood phenol (0.5wt%), tall oil rosin (2wt%), wax (2wt%), dry vegetable oil (23wt%), water from the pulping process of sumac and tobacco straw mechanical pulp (70wt%), sodium lignin sulfonate (2.5%), and the water-based coating is prepared by high-speed shearing; Step 7.5: Use film transfer to apply water-based coating on the surface of the base paper, and control the coating amount on one side to 4 g / m 2 ; Apply powdered calcium carbonate, using heavy calcium carbonate with an average particle size of 50μm and a spraying amount of 10 g / m 2 After rewinding, a traditional Chinese medicine packaging paper with antibacterial and insect-proof properties and no plastic is obtained.

8. A method for manufacturing a high-permeability Chinese medicine packaging paper with tea aroma, characterized in that The method is based on the fiberization treatment and active ingredient extraction method of a woody Chinese medicinal plant as claimed in claim 1, and the steps include: Step 8.1: Extraction of tea tree active substances and preparation of tea tree fiber: Mechanically crush the main trunk and side trunk wood of the tea tree, and the length and width of the crushed material are less than 5mm; soak the material in sodium phosphate aqueous solution, the amount of sodium phosphate is 4% of the tea tree, add 0.2% of the weight of the tea tree vitamin A, the soaking concentration is 8%, and the soaking temperature is 30-40℃; The material is firstly refined at a grinding disc spacing of 100 μm, and then refined at a grinding disc spacing of 15 μm for a second time, with a grinding concentration of 4%. The material is screw extruded to obtain filtrate and tea tree fiber. Step 8.2: Modification of softwood chemical pulp: The coniferous wood chemical pulp is purchased commercially in the form of pulp board; the coniferous wood chemical pulp is put into a hydraulic deflaking machine with a deflaking concentration of 5%; the fibers with a mesh size of 80 are screened through an 80-mesh screen for use; the filtrate described in step 8.1 is added during the stirring and deflaking process; the deflaked pulp is pumped into a micro-jet high-pressure homogenizer with a cavity diameter of 220 μm and a pressure of 80 Mpa; calcium gluconate is added to the pulp coming out of the homogenizer in an amount of 5% of the mass of the tea tree, and the sodium carbonate reacts with the calcium gluconate, and the calcium gluconate reacts with the tea polyphenols, caffeine, and theophylline in the filtrate described in step 8.1 at the same time to achieve the fixation of the active substances in the chemical pulp cell cavity; Step 8.3: Raw paper pulp ratio and pulping: Ratio of raw paper pulp: 20% hardwood chemical pulp (commercial pulp), 30% tea tree fiber described in step 8.1, 50% modified chemical pulp described in step 8.2; 20% hardwood chemical pulp was pulped, with a pulping concentration of 10% and a pulping degree of 30°SR; the other two pulps were not pulped: Step 8.4: Water-based coating formulation and preparation: The coating composition: tannin (5wt%), native starch (10wt%), gum rosin (7.5wt%), dry vegetable oil (15wt%), water from the mechanical pulp process in step 8.1 (60wt%), paraffin (2.5wt%); the water-based latex coating is prepared by high-pressure homogenization: Step 8.5: Papermaking and coating: The three pulps in step 8.3 were mixed, wet-processed, and the white water of the paper machine was closed and circulated. The base paper weight was controlled to 100 g / m 2 ; The water-based latex coating of step 8.4 is double-sided coated, and the single-sided coating amount is controlled to 2 g / m 2 ; Apply powdered calcium carbonate, using heavy calcium carbonate with an average particle size of 50μm and a spraying amount of 10 g / m 2 ; The highly air-permeable Chinese medicine packaging paper with tea aroma is obtained.