CN111254743A - Mould mildew preventive spraying device for paper - Google Patents

Mould mildew preventive spraying device for paper Download PDF

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Publication number
CN111254743A
CN111254743A CN202010190926.7A CN202010190926A CN111254743A CN 111254743 A CN111254743 A CN 111254743A CN 202010190926 A CN202010190926 A CN 202010190926A CN 111254743 A CN111254743 A CN 111254743A
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China
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mildew
square
paper
square box
wall surface
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CN202010190926.7A
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Chinese (zh)
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陈海锋
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    • DTEXTILES; PAPER
    • D21PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21HPULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H23/00Processes or apparatus for adding material to the pulp or to the paper
    • D21H23/02Processes or apparatus for adding material to the pulp or to the paper characterised by the manner in which substances are added
    • D21H23/22Addition to the formed paper
    • D21H23/50Spraying or projecting
    • DTEXTILES; PAPER
    • D21PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21HPULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H17/00Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
    • D21H17/03Non-macromolecular organic compounds
    • D21H17/05Non-macromolecular organic compounds containing elements other than carbon and hydrogen only
    • D21H17/06Alcohols; Phenols; Ethers; Aldehydes; Ketones; Acetals; Ketals
    • DTEXTILES; PAPER
    • D21PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21HPULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H17/00Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
    • D21H17/03Non-macromolecular organic compounds
    • D21H17/05Non-macromolecular organic compounds containing elements other than carbon and hydrogen only
    • D21H17/14Carboxylic acids; Derivatives thereof
    • DTEXTILES; PAPER
    • D21PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21HPULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H17/00Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
    • D21H17/63Inorganic compounds
    • D21H17/64Alkaline compounds
    • DTEXTILES; PAPER
    • D21PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21HPULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H17/00Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
    • D21H17/63Inorganic compounds
    • D21H17/65Acid compounds
    • DTEXTILES; PAPER
    • D21PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21HPULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H17/00Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
    • D21H17/63Inorganic compounds
    • D21H17/67Water-insoluble compounds, e.g. fillers, pigments
    • D21H17/675Oxides, hydroxides or carbonates
    • DTEXTILES; PAPER
    • D21PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21HPULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H21/00Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
    • D21H21/14Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties characterised by function or properties in or on the paper
    • DTEXTILES; PAPER
    • D21PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21HPULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H21/00Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
    • D21H21/14Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties characterised by function or properties in or on the paper
    • D21H21/36Biocidal agents, e.g. fungicidal, bactericidal, insecticidal agents
    • DTEXTILES; PAPER
    • D21PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21HPULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H21/00Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
    • D21H21/50Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties characterised by form
    • D21H21/52Additives of definite length or shape

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  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Pest Control & Pesticides (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)

Abstract

The invention relates to the technical field of papermaking, and discloses a mould and mildew inhibitor spraying and drying device for paper, which comprises a square box, wherein the square box is of a hollow structure, wheels are movably mounted on the lower wall surface of the square box, the number of the wheels is four, the four wheels are respectively mounted at four corners of the lower wall surface of the square box, a fixed lock is fixedly mounted on each wheel, a switch is fixedly mounted on the front wall surface of the square box, and the switch is electrically connected with the four fixed locks. Through having set up the lamp shade, the lamp shade is used for making the light gather together, avoids light to scatter and leads to light weak, is provided with the lamp shade on imitative fluorescent lamp, and the lamp shade is the big structure in the little below in top, and the region that light shines can be fixed to trapezoidal shape, is provided with the tinfoil layer in lamp shade inside, and the tinfoil layer has increased gathering together of light, has improved the temperature of imitative fluorescent lamp shined the region, has improved the efficiency that the paper insolated, has improved the quality of paper.

Description

Mould mildew preventive spraying device for paper
Technical Field
The invention relates to the technical field of papermaking, in particular to a spraying device for a mildew and mildew inhibitor for paper.
Background
There are two forms, mechanical and manual. The mechanism is continuously carried out on a paper machine, pulp suitable for paper quality is diluted to certain concentration by water, and is primarily dewatered at a wire part of the paper machine to form a wet paper sheet, and then the wet paper sheet is pressed for dewatering and then dried to form paper. And the mildew-removing and mildew-preventing agent is sprayed on the paper to prevent the paper from mildewing and prolong the service life of the paper, but the existing device for removing mildew and preventing the paper from mildewing has poor drying speed and efficiency after the paper is wetted by spraying, so that the paper is mildewed before being dried, the yield of the paper is low, and the quality of the produced paper is poor.
In addition, there are a series of problems in the book mildew removing and preventing process, such as alum dehydration mildew prevention proposed in the book mildew removing and preventing law of anghai, and by using this chemical agent, once the moisture is heavy, alum can be hydrolyzed to generate an acidic environment, which results in the hydrolysis of cellulose in the paper, and the breaking of the polymer chain, which can destroy the original purpose of the paper. While the 'how to remove stains on books' mentions that potassium permanganate can be added to remove brown spots by adding oxalic acid or citric acid, which can cause severe acidification and damage the strength of paper; it is also mentioned that ammonia is used, and although ammonia is volatile, excess alkali may also cause hydrolysis of cellulose, resulting in staining of the book. It has also been proposed to spray Zn (C) onto the Internet2H5)2The material may react with water to form zinc oxide and ethane, wherein the zinc oxide may react with the acidic solution to consume hydrogen ions and serve to prevent corrosion. However, the diethyl zinc has bad smell and difficult storage, can spontaneously ignite when exposed to air, and the ethane volatilized by the reaction easily causes fire, so the operation is not available.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides the spraying device for the mildew and mildew inhibitor for paper, which has the advantages of quickly drying paper in the sun and the like, solves the problem of poor papermaking quality in rainy days, protects paper fibers, slows down acidification, prolongs the service life of the paper, achieves the aim of repair protection, and is low in reagent cost and harmless to human health.
(II) technical scheme
In order to achieve the purpose, the invention provides the following technical scheme: paper removes mould mildew preventive spray drying device, including square case, square case is hollow structure, and the below wall movable mounting of square case has the wheel, and the wheel has four, and four wheels are installed respectively at four corners of square case below wall, and equal fixed mounting has the fixed lock on every wheel, and the place ahead wall fixed mounting of square case has the switch, and the switch is in the same place with four fixed lock electric connection.
Preferably, the side wall surface of the square box is provided with two square openings, the two square openings are symmetrical left and right, and the two square openings are respectively arranged on the left side wall surface and the right side wall surface of the square box.
Preferably, the left and right sides of square case all is provided with the fixed column, and the fixed column is square post, and the fixed column has two, two fixed column longitudinal symmetry, and a lateral wall face that two fixed columns are close to each other all sets up flutedly, and the recess is the circular shape groove, and the inside fixed mounting of recess in the place ahead has the motor, and the inside fixed mounting of recess at rear has the bearing, and the outer lane of bearing is in the same place with the inner wall fixed connection of recess, and the inner circle fixed mounting of bearing has the connecting rod, and the connecting rod is columniform.
Preferably, fixed mounting has the spliced pole on the output shaft of motor, and the spliced pole is columniform post, and the spliced pole is kept away from the one end of motor and is in the same place with connecting rod fixed connection, and the inside of square case is provided with the conveyer belt, and the conveyer belt is square area, and the conveyer belt runs through about two square openings and extend to the square case outside about, the spliced pole swing joint of both sides is in the same place about the both ends of conveyer belt and the square case.
Preferably, a spray head is fixedly mounted above the inner wall of the square box, an opening is formed in the wall surface above the square box, a mildew and mildew inhibitor removing tank is fixedly mounted on the wall surface above the spray head, the mildew and mildew inhibitor removing tank is a circular tank, and the mildew and mildew inhibitor removing tank penetrates through the opening formed in the square box and extends to the upper side of the square box.
Preferably, a simulated fluorescent lamp is fixedly mounted above the inner wall of the square box, a lampshade is fixedly mounted on the simulated fluorescent lamp, the lampshade is in a trapezoidal shape, the lampshade is in a structure with a small upper part and a large lower part, and a tin paper layer is fixedly mounted on the inner wall of the lampshade.
Preferably, the mildew removing and preventing agent tank contains a mildew removing and preventing agent, wherein the preparation method of the mildew removing and preventing agent comprises the following steps:
1) preparation of mildew remover A liquid
Adding an ethanol-water miscible solvent (V ethanol: V water is 6:4) into a sodium hypochlorite solution (the effective chlorine component is 5%), and adjusting the concentration of sodium hypochlorite to be 0.026-0.038 mol/L;
2) preparation of mildew preventive B liquid
Firstly, preparing nano titanium dioxide by a hydrothermal method, taking deionized water and alcohol according to the volume ratio of 1:20 to prepare an alcohol aqueous solution, taking tetrabutyl titanate and alcohol according to the volume ratio of 1:20 to prepare an alcohol ester solution, mixing and stirring the two solutions uniformly, pouring the two solutions into a reaction kettle, transferring the reaction kettle to an oven, and setting the temperature to 180 ℃ for reaction for 12 hours; cooling to room temperature, centrifuging, dispersing precipitate in ethanol-water miscible solvent (V ethanol: V water: 6:4), adding 0.02-0.1% dispersant, and ultrasonic treating for 0.5-1h to obtain 2 × 10-4-2x10-3g/L of titanium dioxide colloid; followed by addition of Ca (OH)2The concentration is controlled to be 0.07-0.74mg/L, and water-soluble essence is added, and the concentration is controlled to be 2-10 g/L;
3) preparation of mildew-removing and mildew-proof agent
Mixing the solution A and the solution B according to the volume ratio of 1: 1.
Preferably, said Ca (OH)2The purity is required to be higher than 97%, the clarity test/number is less than or equal to 4, Sulfate (SO)4) The percentage is less than or equal to 0.2, and the percentage of hydrochloric acid insoluble substances is less than or equal to 0.05.
Preferably, the above mentioned dispersant may be one or more of cetyl trimethyl ammonium bromide, sodium hexametaphosphate or sodium polyacrylate.
Preferably, the above mentioned alcohols can be ethanol, ethylene glycol or a mixture of the two in any proportion.
Preferably, the above mentioned water-soluble essence, especially citrus type essence and ester type water-soluble essence, is colorless transparent powder.
(III) advantageous effects
Compared with the prior art, the invention provides a spraying device of a mildew-removing and mildew-proof agent for paper, which has the following beneficial effects:
1. this paper removes mould mildew preventive spray drying device, through having set up the lamp shade, the lamp shade is used for making the light gathering together, it is weak to avoid light to scatter to lead to light, be provided with the lamp shade on imitative fluorescent lamp, and the lamp shade is the big structure in the little below in top, the region that light shines can be fixed to trapezoidal shape, be provided with the tinfoil layer in lamp shade inside, the tinfoil layer has increased gathering together of light, the temperature of imitative fluorescent lamp illuminated region has been improved, the efficiency of paper sun-drying has been improved, the quality of paper has been improved.
2. This paper removes mould mildew preventive spray drying device, through having set up the conveyer belt, the both ends of conveyer belt are provided with the motor, and the output shaft of motor drives the spliced pole rotatory, and the spliced pole links together with the conveyer belt, and the spliced pole drives the conveyer belt motion and sends the paper on the conveyer belt into the inside of square case 1, has improved work efficiency.
3. The raw materials of the mildew-removing and mildew-proof agent are common substances, and the mildew-removing and mildew-proof agent has no influence on the health of a human body, so that the safety is greatly improved.
4. Ca (OH) of the mildew-removing and mildew-proof agent2And titanium dioxide is attached to the surface of the fiber, so that the acidification is weakened, the whiteness is improved, and meanwhile, the paper is antibacterial and bacteriostatic, and the service life of the paper is prolonged.
Drawings
FIG. 1 is a schematic sectional elevation view of the structure of the present invention;
FIG. 2 is a schematic side view of the structure of the present invention;
fig. 3 is a schematic side sectional view of the structure-fixing pillar according to the present invention.
FIG. 4 is a photograph of a mildew preventive for paper (containing sodium hypochlorite 0.013mol/L) sprayed on a mildewed paper. (A is a photograph of a part of the mold before repair, B is a photograph of a part of the mold after repair)
FIG. 5 is a photograph of a mildew-proof agent for paper (containing sodium hypochlorite of 0.013mol/L) sprayed on a mildew paper with writing. (A is a photograph of the mold before repair, B is a photograph after repair)
FIG. 6 is a photograph of a mildew preventive (containing sodium hypochlorite 0.019mol/L) sprayed on a mildewed paper. (A is a photograph of a part of the mold before repair, B is a photograph of a part of the mold after repair)
FIG. 7 is a scanning electron microscope photograph of a paper after spraying mildew preventive (containing sodium hypochlorite 0.019mol/L) on the mildewed paper.
FIG. 8 is a photograph of a mold and mildew preventive (containing sodium hypochlorite 0.015mol/L) for a paper sprayed with a moldy paper. (A is a photograph of a part of the mold before repair, B is a photograph of a part of the mold after repair)
In the figure: the mould-removing and mildew-proofing agent comprises a square box 1, wheels 2, a fixing lock 3, a switch 4, a square opening 5, fixing columns 6, a groove 7, a motor 8, a motor 9, a connecting rod 10, a connecting column 11, a conveyor belt 12, a sprayer 13, a mould-removing and mildew-proofing agent tank 14, a simulated daylight lamp 15, a lampshade 16 and a tinfoil layer 17.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The first embodiment is as follows: referring to fig. 1-3, a device for spraying a mildew and mildew inhibitor for paper comprises a square box 1, wherein the square box 1 is of a hollow structure, wheels 2 are movably mounted on the lower wall surface of the square box 1, the wheels 2 are of a conventional structure, details are not described herein, four wheels 2 are provided, the four wheels 2 are respectively mounted at four corners of the lower wall surface of the square box 1, a fixing lock 3 is fixedly mounted on each wheel 2, the fixing lock 3 is of a conventional structure, details are not described herein, and an opening is fixedly mounted on the front wall surface of the square box 14, the switch 4 is of an existing structure, which is not described herein in detail, and the switch 4 is electrically connected to four fixed locks 3, the side wall surface of the square box 1 is provided with two square openings 5, the two square openings 5 are symmetrical left and right, the two square openings 5 are respectively provided on the left and right side wall surfaces of the square box 1, the left and right sides of the square box 1 are provided with fixed columns 6, the fixed columns 6 are square columns, the two fixed columns 6 are symmetrical front and back, one side wall surface of the two fixed columns 6 close to each other is provided with a groove 7, the groove 7 is a circular groove, the front groove 7 is internally and fixedly provided with a motor 8, the motor 8 is a rotating motor, the motor 8 is of an existing structure, which is not described herein in detail, the rear groove 7 is internally and fixedly provided with a bearing 9, the bearing 9 is of an existing structure, which is not described herein in detail, the outer ring of the bearing 9 is fixedly connected with the inner wall of the groove 7, the inner ring of the bearing 9 is fixedly provided with a connecting rod 10, the connecting rod 10 is a cylindrical rod, the output shaft of the motor 8 is fixedly provided with a connecting column 11, the connecting column 11 is a cylindrical column, one end of the connecting column 11 far away from the motor 8 is fixedly connected with the connecting rod 10, the inside of the square box 1 is provided with a conveyor belt 12, the conveyor belt 12 is a square belt, the conveyor belt 12 penetrates through the left square opening 5 and the right square opening 5 and extends to the left outer part and the right outer part of the square box 1, two ends of the conveyor belt 12 are movably connected with connecting columns 11 on the left side and the right side of the square box 1, a spray head 13 is fixedly arranged above the inner wall of the square box 1, the spray head 13 is of the existing structure, not repeated, an opening is opened on the upper wall surface of the square box 1, a mildew removing and mildew preventing agent tank 14 is fixedly installed on the upper wall surface of the spray head 13, and the preparation method of the internal mildew removing and mildew preventing agent comprises the following steps: firstly, preparing a mildew remover A solution: adding an ethanol-water miscible solvent (V ethanol: V water is 6:4) into a sodium hypochlorite solution (the effective chlorine component is 5%), and adjusting the concentration of sodium hypochlorite to be 0.026 mol/L; secondly, preparing the mildew preventive B liquid: firstly, preparing nano titanium dioxide by a hydrothermal method, preparing an alcohol-water solution from deionized water and ethanol according to a volume ratio of 1:20, preparing an alcohol ester solution from tetrabutyl titanate and ethanol according to a volume ratio of 1:20, mixing and stirring the two solutions uniformly, pouring the two solutions into a reaction kettle, transferring the reaction kettle to an oven, and setting the temperature to 180 ℃ for reaction for 12 hours; cooling to room temperature, centrifuging, and re-dispersing the precipitate in ethanolAdding 0.02% of sodium hexametaphosphate into a water-miscible solvent (V ethanol: V water: 6:4), and performing ultrasonic treatment for 0.5h to prepare 2x10-4g/L of titanium dioxide colloid; followed by addition of Ca (OH)2The concentration is controlled to be 0.07mg/L, and ester type water-soluble essence is added, and the concentration is controlled to be 2 g/L; and finally, preparing a mildew removing and preventing agent: mixing the solution A and the solution B according to the volume ratio of 1:1 to obtain the mildew and mildew inhibitor for paper, wherein the concentration of sodium hypochlorite is 0.013mol/L, and the concentration of titanium dioxide colloid is 1x10-4g/L, pH 7.9, and the solvent is alcohol-water mixed solvent.
And (4) performing a mould removal experiment. Selecting a blank yellow paper, drawing a circle with the radius of 1cm, selecting a specific area of the paper, marking the specific area with the concentration, measuring and recording initial whiteness by using a whiteness meter before spraying, spraying the prepared mildew removing and mildew preventing agent solution to the corresponding area, naturally airing the area in the shade, and measuring and recording data by using the whiteness meter. Experimental results have found that the whiteness increases by 1.76%, which is a concentration that effectively removes mold spots and also increases the whiteness of the paper without easily changing the original color of the paper, as shown in fig. 1. To determine whether a sodium hypochlorite solution of this concentration would oxidize the original writing in a book with mildew removal and whiteness enhancement, a set of tests were also performed using this concentration, as shown in fig. 2, to eliminate the mildew, retain the writing, and increase whiteness.
And (5) performing mildew-proof antibacterial bacteriostatic experiments. Preparing nutrient agar culture medium in a conical flask, boiling to clear state with electric furnace, covering with a stopper, placing together with PBS buffer solution (phosphate buffer solution), sterile water, matching gun head, coating rod, centrifuge tube, and 5mm round test paper into autoclave for sterilization, and sterilizing at 121 deg.C for 25 min. The culture dish is wrapped by kraft paper and put into a forced air drying oven together with the test tube for sterilization, and the sterilization is carried out for 2h at 170 ℃. Before the experiment, an ultra-clean workbench and an operation room need to be sterilized by an ultraviolet lamp for more than 30min before use. Placing the culture medium and the culture dishes to 60 ℃, then starting to pour the culture dishes, shaking the culture medium uniformly before use, pouring about 15-20 mL of the culture medium in each culture dish, and horizontally standing the culture medium until the culture medium is completely solidified. Taking out strain to be tested from refrigerator, activating for 0.5h, adding 5mL PBS buffer solution, shaking gently on palm for 80 times to make strainPouring the mixture into a test tube, and gently shaking the mixture. Sucking 1mL of the bacterial liquid, adding the bacterial liquid into 4mL of PBS buffer solution, sucking 1mL of diluted bacterial suspension, sequentially carrying out 5-fold gradient dilution, and selecting bacterial suspension with the concentration of about 108CFU/mL (comparing with a 0.5 McLeod turbiditube). 0.1mL of test bacterial suspension with the concentration of 108cfu/mL is sucked by a pipette gun, inoculated into a poured nutrient agar culture dish, evenly coated by a coating rod (the coating rod is sterilized under an alcohol lamp after each use, and the action of coating does not scratch the culture medium slightly), and the culture dish is covered. Preparation of fluconazole solution: the concentration of the antibacterial drug solution is generally 1280ug/ml, and the fluconazole is antibiotic powder with the drug effect of 750 ug/mg. 182.6mg of fluconazole are weighed by an analytical balance, 107ml of sterile water is weighed to prepare 1280ug/ml solution. Placing 5 sterilized 5mm circular test paper in a sterilized culture dish, wherein the distance between the centers of the test paper is more than 25mm, sucking 20uL of positive control fluconazole solution to the test paper by using a pipette gun, sucking 20uL of mildew removing and mildew preventing agent solution to the test paper by using the remaining four test paper, and taking the culture dish without inoculated bacteria as a negative control. And after the test paper is dried, placing the test paper into a culture medium, covering the culture dish, wherein the distance between the centers of the same test paper is more than 25mm and the distance between the centers of the same test paper is more than 10mm from the edge of the culture dish. Culturing in a constant temperature incubator at 37 ℃ for 16-18 h, and observing the result. The diameter of the zone was measured with a vernier caliper and recorded as follows. Positive control zone diameter: 23.16 mm. Negative control zone diameter: 0.00 mm. As a result of the experiment, the diameter (mm) of the inhibition zone was 7.06. Judging the antibacterial action according to the evaluation method of the antibacterial and bacteriostatic effects of QBT 2738-: if the diameter of the inhibition zone is less than or equal to 7mm, the product is judged to have no inhibition effect. If the diameter of the inhibition zone is larger than 7mm, the product is judged to have the inhibition effect. When the diameter is larger than 7mm and smaller than 10mm, the patient is determined to be insensitive; when the particle size is more than 10mm and less than 20mm, the particle is identified as medium sensitivity; greater than 20mm is highly sensitive. The concentration of the titanium dioxide can be judged to be 1x10 according to the experimental result-4The gram per liter has bacteriostatic effect, and the bacteriostatic effect is desensitization.
Example 2
Referring to fig. 1-3, the spraying device for the mildew and mildew inhibitor for paper comprises a square box 1, wherein the square box 1 is of a hollow structure, and wheels 2 are movably mounted on the lower wall surface of the square box 1 and are arranged on the lower wall surface of the square box 1The sub 2 is of a conventional structure, which is not described herein in detail, four wheels 2 are provided, and four wheels 2 are respectively mounted at four corners of a lower wall surface of the square box 1, a fixing lock 3 is fixedly mounted on each wheel 2, the fixing lock 3 is of a conventional structure, which is not described herein in detail, a switch 4 is fixedly mounted on a front wall surface of the square box 1, the switch 4 is of a conventional structure, which is not described herein in detail, and the switch 4 is electrically connected with the four fixing locks 3, a square opening 5 is formed in a side wall surface of the square box 1, two square openings 5 are provided, the two square openings 5 are symmetrical left and right, the two square openings 5 are respectively formed in left and right side wall surfaces of the square box 1, fixing columns 6 are provided on both left and right sides of the square box 1, the fixing columns 6 are square columns, and the two fixing columns 6 are provided, the two fixing columns 6 are symmetrical front and back, one side wall surface of the two, the groove 7 is a circular groove, the motor 8 is fixedly installed inside the groove 7 at the front, the motor 8 is a rotating motor, the motor 8 is of an existing structure and is not described herein any more, the bearing 9 is fixedly installed inside the groove 7 at the rear, the bearing 9 is of an existing structure and is not described herein any more, the outer ring of the bearing 9 is fixedly connected with the inner wall of the groove 7, the inner ring of the bearing 9 is fixedly installed with a connecting rod 10, the connecting rod 10 is a cylindrical rod, the output shaft of the motor 8 is fixedly installed with a connecting column 11, the connecting column 11 is a cylindrical column, one end of the connecting column 11 far away from the motor 8 is fixedly connected with the connecting rod 10, the inside of the square box 1 is provided with a conveyor belt 12, the conveyor belt 12 is a square belt, the conveyor belt 12 penetrates through the left square opening 5 and the right square opening 5 and extends to the left outside and the right outside of the square, the spray head 13 is fixedly installed above the inner wall of the square box 1, the spray head 13 is of an existing structure, details are not described here, an opening is formed in the upper wall surface of the square box 1, the mildew removing and mildew preventing agent tank 14 is fixedly installed on the upper wall surface of the spray head 13, and the preparation method of the internal mildew removing and mildew preventing agent comprises the following steps: firstly, preparing a mildew remover A solution: adding an ethanol-water miscible solvent (V ethanol, V water is 6:4) into a sodium hypochlorite solution (the effective chlorine component is 5%), and adjusting the concentration of sodium hypochlorite to be 0.038 mol/L; secondly, preparing the mildew preventive B liquid: firstly, preparing nano titanium dioxide by a hydrothermal method, and taking deionized water and B according to the volume ratio of 1:20Preparing alcohol aqueous solution from glycol, preparing alcohol ester solution from tetrabutyl titanate and glycol according to the volume ratio of 1:20, mixing and stirring the two solutions uniformly, pouring the mixture into a reaction kettle, transferring the reaction kettle to an oven, and reacting for 12 hours at the temperature of 180 ℃; then cooling to room temperature, centrifuging, re-dispersing the precipitate in ethanol-water miscible solvent (V ethanol: V water: 6:4), adding 0.1% sodium polyacrylate, and performing ultrasonic treatment for 1h to prepare 2x10-3g/L of titanium dioxide colloid; followed by addition of Ca (OH)2The concentration is controlled to be 0.74mg/L, and ester type water-soluble essence is added, and the concentration is controlled to be 10 g/L; and finally, preparing a mildew removing and preventing agent: mixing the solution A and the solution B according to the volume ratio of 1:1 to obtain the mildew and mildew inhibitor for paper, wherein the concentration of sodium hypochlorite is 0.019mol/L, and the concentration of titanium dioxide colloid is 1x10-3g/L, pH is 9, and the solvent is an alcohol-water mixed solvent. The procedure of the mold removal test was as in example 1. Experimental results found that the whiteness was increased by 1.52%, which concentration was effective in removing mold spots and also improved the whiteness of the paper, but did not easily change the original color of the paper, as shown in fig. 3; meanwhile, observing the microstructure of the area by an S-3400 scanning electron microscope to find that a great number of inorganic particles, suspected of being titanium dioxide and Ca (OH), are attached to the paper fibers2And inorganic particles as shown in fig. 4. The experiment of mildew resistance, antibiosis and bacteriostasis is carried out in the same process as example 1. As a result of the experiment, the diameter (mm) of the zone of inhibition was 12.28. The concentration of the titanium dioxide can be judged to be 1x10 according to the experimental result-3The gram per liter has bacteriostatic effect, and the bacteriostatic effect is moderate sensitivity.
The mould removing and mildew preventing agent tank 14 is a circular tank, the mould removing and mildew preventing agent tank 14 penetrates through an opening formed in the square box 1 and extends to the upper side of the square box 1, an artificial daylight lamp 15 is fixedly mounted above the inner wall of the square box 1, the artificial daylight lamp 15 is a lamp capable of simulating sunlight heating, the artificial daylight lamp 15 is of an existing structure and is not repeated herein, a lampshade 16 is fixedly mounted on the artificial daylight lamp 15, the lampshade 16 is in a trapezoidal shape, the lampshade 16 is of a structure with a small upper side and a large lower side, a tin paper layer 17 is fixedly mounted on the inner wall of the lampshade 16, the tin paper layer 17 can reflect light rays to be gathered on the conveyor belt 12 below, and paper on the conveyor belt 12 is dried.
Example 3
Referring to fig. 1-3, a paper mold and mildew inhibitor spraying device includes a square box 1, the square box 1 is a hollow structure, wheels 2 are movably mounted on a lower wall surface of the square box 1, and the wheels 2 are of a conventional structure, which will not be described herein, four wheels 2 are provided, and four wheels 2 are respectively mounted at four corners of the lower wall surface of the square box 1, a fixing lock 3 is fixedly mounted on each wheel 2, the fixing lock 3 is of a conventional structure, which will not be described herein, a switch 4 is fixedly mounted on a front wall surface of the square box 1, the switch 4 is of a conventional structure, which will not be described herein, and the switch 4 is electrically connected with the four fixing locks 3, square openings 5 are provided on side wall surfaces of the square box 1, two square openings 5 are provided, and two square openings 5 are symmetrical to the left and right, two square openings 5 are respectively provided on left and right side wall surfaces of the square box 1, the left side and the right side of the square box 1 are respectively provided with a fixed column 6, the fixed columns 6 are square columns, the number of the fixed columns 6 is two, the two fixed columns 6 are symmetrical front and back, one side wall surface of the two fixed columns 6 close to each other is provided with a groove 7, the groove 7 is a circular groove, a motor 8 is fixedly installed inside the groove 7 in the front, the motor 8 is a rotating motor, the motor 8 is of an existing structure and is not described in detail herein, a bearing 9 is fixedly installed inside the groove 7 in the rear, the bearing 9 is of an existing structure and is not described herein again, the outer ring of the bearing 9 is fixedly connected with the inner wall of the groove 7, the inner ring of the bearing 9 is fixedly provided with a connecting rod 10, the connecting rod 10 is a cylindrical rod, a connecting column 11 is fixedly installed on the output shaft of the motor 8, the connecting column 11 is, the inside of square case 1 is provided with conveyer belt 12, conveyer belt 12 is square area, and conveyer belt 12 runs through about two square openings 5 and extend to square case 1 outside about, the spliced pole 11 swing joint in both sides is in the same place about conveyer belt 12's both ends and square case 1, the inner wall top fixed mounting of square case 1 has shower nozzle 13, shower nozzle 13 is current structure, it does not describe here any more, the opening has been seted up to square case 1's top wall, the top wall fixed mounting of shower nozzle 13 has mould mildew inhibitor jar 14, the inside mould mildew inhibitor preparation method that removes does: firstly, preparing a mildew remover A solution: adding ethanol water into sodium hypochlorite solution (5% of available chlorine component)Adjusting the concentration of sodium hypochlorite to be 0.03mol/L by using a solvent (V ethanol, V water is 6: 4); secondly, preparing the mildew preventive B liquid: firstly, preparing nano titanium dioxide by a hydrothermal method, preparing an alcohol-water solution from deionized water (1 part) and ethanol glycol (1: 1 part of ethanol and ethylene glycol and 16 parts of ethanol and ethylene glycol) according to a volume ratio of 1:20, preparing an alcohol ester solution from tetrabutyl titanate (1 part) and ethanol glycol (1: 1 part of ethanol and ethylene glycol and 16 parts of ethanol and ethylene glycol) according to a volume ratio of 1:20, mixing and stirring the two solutions uniformly, pouring the mixture into a reaction kettle, transferring the reaction kettle to an oven, and setting the temperature to 180 ℃ for reaction for 12 hours; then cooling to room temperature, centrifuging, re-dispersing the precipitate in ethanol-water miscible solvent (V ethanol: V water: 6:4), adding 0.04% cetyl trimethyl ammonium bromide, and performing ultrasonic treatment for 0.8h to prepare 2x10-3g/L of titanium dioxide colloid; followed by addition of Ca (OH)2The concentration is controlled to be 0.07mg/L, and citrus type essence is added, and the concentration is controlled to be 2 g/L; and finally, preparing a mildew removing and preventing agent: mixing the solution A and the solution B according to the volume ratio of 1:1 to obtain the mildew and mildew inhibitor for paper, wherein the concentration of sodium hypochlorite is 0.015mol/L, and the concentration of titanium dioxide colloid is 1x10-3g/L, pH 7.9, and the solvent is alcohol-water mixed solvent. The procedure of the mold removal test was as in example 1. Experimental results have found that the whiteness increases by 1.44%, which is a concentration that effectively removes mold spots and also increases the whiteness of the paper without easily changing the original color of the paper, as shown in fig. 5. The experiment of mildew resistance, antibiosis and bacteriostasis is carried out in the same process as example 1. As a result of the experiment, the diameter (mm) of the zone of inhibition was 12.28. The concentration of the titanium dioxide can be judged to be 1x10 according to the experimental result-3The gram per liter has bacteriostatic effect, and the bacteriostatic effect is moderate sensitivity. Remove mould mildew preventive tank 14 and be circular shape jar, and remove mould mildew preventive tank 14 and pass the opening of seting up on square case 1 and extend to square case 1's top, the inner wall top fixed mounting of square case 1 has imitative fluorescent lamp 15, imitative fluorescent lamp 15 is a lamp that imitative insolate and generate heat, imitative fluorescent lamp 15 is current structure, do not do the repeated description here, fixed mounting has lamp shade 16 on the imitative fluorescent lamp 15, lamp shade 16 is trapezoidal shape, lamp shade 16 is the big structure in the little below in top, fixed mounting has tinfoil layer 17 on the inner wall of lamp shade 16, tinfoil layer 17 can be gathered together the light reflection on below conveyer belt 12, paper on the conveyer belt 12, the tinfoil layer 17Dried in the sun.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (7)

1. Mould mildew preventive spray drying device is removed to paper, including square case (1), its characterized in that: the lower wall surface of the square box (1) is movably provided with wheels (2), the side wall surface of the square box (1) is provided with two square openings (5), the number of the square openings (5) is two, the left side and the right side of the square box (1) are respectively provided with two fixing columns (6), the number of the fixing columns (6) is two, the two fixing columns (6) are symmetrical front and back, one side wall surface of the two fixing columns (6) close to each other is provided with a groove (7), a motor (8) is fixedly arranged in the groove (7) in the front, a bearing (9) is fixedly arranged in the groove (7) in the rear, a connecting column (11) is fixedly arranged on an output shaft of the motor (8), one end of the connecting column (11) far away from the motor (8) is fixedly connected with the connecting rod (10), a conveyor belt (12) is arranged in the square box (1), and a, a daylight simulating lamp (15) is fixedly arranged above the inner wall of the square box (1), a lampshade (16) is fixedly arranged on the daylight simulating lamp (15), and a tin paper layer (17) is fixedly arranged on the inner wall of the lampshade (16).
2. The paper mold and mildew inhibitor spraying device of claim 1, wherein: the wheel (2) have four, and four corners at square case (1) below wall are installed respectively in four wheel (2), and equal fixed mounting has padlock (3) on every wheel (2), and the place ahead wall fixed mounting of square case (1) has switch (4), and switch (4) and four padlock (3) electric connection together.
3. The paper mold and mildew inhibitor spraying device of claim 1, wherein: the outer ring of the bearing (9) is fixedly connected with the inner wall of the groove (7), and the inner ring of the bearing (9) is fixedly provided with a connecting rod (10).
4. The paper mold and mildew inhibitor spraying device of claim 1, wherein: two square opening (5) bilateral symmetry, two square opening (5) are seted up respectively on the side wall face about square case (1), and outside about two square opening (5) and extend to square case (1) about conveyer belt (12) run through, the both ends of conveyer belt (12) are in the same place with spliced pole (11) swing joint of square case (1) left and right sides.
5. The paper mold and mildew inhibitor spraying device of claim 1, wherein: an opening is formed in the upper wall surface of the square box (1), a mould and mildew removing and preventing agent tank (14) is fixedly mounted on the upper wall surface of the spray head (13), and the mould and mildew removing and preventing agent tank (14) penetrates through the opening formed in the square box (1) and extends to the upper side of the square box (1).
6. The paper mold and mildew inhibitor spraying device of claim 5, wherein: the mildew and mildew removing agent tank (14) contains a mildew and mildew removing agent, wherein the preparation method of the mildew and mildew removing agent comprises the following steps:
1) preparation of mildew remover A liquid
Adding an ethanol-water miscible solvent (V ethanol: V water is 6:4) into a sodium hypochlorite solution (the effective chlorine component is 5%), and adjusting the concentration of sodium hypochlorite to be 0.026-0.038 mol/L;
2) preparation of mildew preventive B liquid
Firstly, preparing nano titanium dioxide by a hydrothermal method, taking deionized water and alcohol according to the volume ratio of 1:20 to prepare an alcohol aqueous solution, taking tetrabutyl titanate and alcohol according to the volume ratio of 1:20 to prepare an alcohol ester solution, mixing and stirring the two solutions uniformly, pouring the two solutions into a reaction kettle, transferring the reaction kettle to an oven, and setting the temperature to 180 ℃ for reaction for 12 hours; cooling to room temperature, centrifuging, dispersing precipitate in ethanol-water miscible solvent (V ethanol: V water: 6:4), adding 0.02-0.1% dispersant, and ultrasonic treating for 0.5-1h to obtain 2 × 10-4-2x10-3g/L of titanium dioxide colloid; followed by addition of Ca (OH)2The concentration is controlled to be 0.07-0.74mg/L, and water-soluble essence is added, and the water-soluble essence is addedThe concentration is controlled to be 2-10 g/L;
3) preparation of mildew-removing and mildew-proof agent
Mixing the solution A and the solution B according to the volume ratio of 1: 1.
7. The paper mold and mildew inhibitor spraying device of claim 6, wherein: the Ca (OH)2The purity is required to be higher than 97%, the clarity test/number is less than or equal to 4, Sulfate (SO)4) The percentage is less than or equal to 0.2, and the percentage of hydrochloric acid insoluble substances is less than or equal to 0.05.
CN202010190926.7A 2020-03-18 2020-03-18 Mould mildew preventive spraying device for paper Withdrawn CN111254743A (en)

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CN108998908A (en) * 2018-08-02 2018-12-14 芜湖兴远新材料有限公司 Non-woven fabrics mould inhibitor spraying machine
CN108998909A (en) * 2018-08-02 2018-12-14 芜湖兴远新材料有限公司 Non-woven fabrics mould inhibitor spraying machine

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CN1668382A (en) * 2002-07-31 2005-09-14 曼泰克株式会社 Liquid spray unit, method for spraying liquid using it, and chemical
CN108998908A (en) * 2018-08-02 2018-12-14 芜湖兴远新材料有限公司 Non-woven fabrics mould inhibitor spraying machine
CN108998909A (en) * 2018-08-02 2018-12-14 芜湖兴远新材料有限公司 Non-woven fabrics mould inhibitor spraying machine

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Application publication date: 20200609