CN111041888A

CN111041888A - Antibacterial, mildew-proof and moth-proof rice paper pulp, rice paper and preparation method

Info

Publication number: CN111041888A
Application number: CN201911365004.9A
Authority: CN
Inventors: 陈广川; 于红光; 王斐
Original assignee: Tongxi Group Co ltd
Current assignee: Tongxi Group Co ltd
Priority date: 2019-12-26
Filing date: 2019-12-26
Publication date: 2020-04-21

Abstract

The invention provides an antibacterial, mildew-proof and moth-proof rice paper pulp, rice paper and a preparation method thereof. The preparation method has the advantages of simple process, small addition amount of the antibacterial agent, high economical practicability and good antibacterial and mildewproof effects, and through detection, the antibacterial rate of the antibacterial, mildewproof and mothproof rice paper to escherichia coli and staphylococcus aureus reaches more than 99%, the mildewproof grade is 0, the natural color of the rice paper is kept, the rice paper has good ink locking performance to ink pigments during writing and drawing, and the effect of painting and calligraphy is excellent.

Description

Antibacterial, mildew-proof and moth-proof rice paper pulp, rice paper and preparation method

Technical Field

The invention belongs to the field of rice paper manufacturing, and relates to rice paper pulp, rice paper and a preparation method, in particular to antibacterial, mildew-proof and moth-proof rice paper pulp, prepared rice paper and a preparation method.

Background

The Xuan paper is the paper used for traditional Chinese painting and calligraphy, is the best carrier of Chinese painting and calligraphy art, and plays an important role in the transfer of Chinese culture. When the hand-made rice paper is in contact with limbs for a long time in the processes of writing, drawing and reading, bacteria and sweat stains on the hands can be brought to the rice paper, bacteria such as escherichia coli, staphylococcus aureus, mould and the like are easy to breed, and the service life of the rice paper is influenced; moreover, the rice paper is greatly influenced by the environmental humidity, and is easy to damp and mildew particularly in the humid weather; the rice paper is easily affected by the gnawing of small beetles such as clotheshorses and the like and the reproduction of worm eggs in the long-term storage process, so that the paper is easily damaged by worms, and the damage of the paper and the painting and calligraphy is caused, so that the ornamental value and the economic value of the paper are greatly affected. At present, the technical report of the antibacterial and mildewproof rice paper is not seen on the market. Therefore, the antibacterial, mildewproof and mothproof rice paper has huge market space and value, and can achieve the purposes of long-term storage, resource saving and waste avoidance.

CN108411703A discloses a moisture-proof rice paper material, which comprises the following components in parts by weight: 9-14 parts of pteroceltis tatarinowii bark fiber, 18-32 parts of corna straw fiber, 6-11 parts of antioxidant, 2-7 parts of compatilizer, 0.8-3.4 parts of flame retardant, 26-43 parts of alfalfa fiber, 22-35 parts of reed stem fiber, 14-29 parts of basalt fiber, 23-37 parts of soybean meal and 32-46 parts of glutinous rice pulp; the soluble solid content of the glutinous rice pulp is 42% -52%; the monofilament diameter of the basalt fiber is 0.35-0.65um, and the monofilament length of the basalt fiber is 3-9 mm.

CN109112870A discloses rice paper pulp, which comprises the following components in percentage by mass: 70-75 parts of cornfield straw, 28-35 parts of pteroceltis tatarinowii bark, 1-1.5 parts of plant photo-oxidant, 1-1.5 parts of auxiliary agent and 8-10 parts of calcium active powder, wherein the auxiliary agent is a mixture of a paper flame retardant and carambola juice agilawood powder.

CN106958164A discloses a method for preparing rice paper by using plant gum to replace animal gum to prepare collosol water, which comprises the following steps: the materials are mixed according to the following weight portions: 190 of rice paper straw pulp 180, 2-4 of sisal hemp, 3-5 of straws, 1-3 of viscose fibers, 0.3-0.5 of alkylphenol polyoxyethylene, 0.1-0.2 of copper sulfate, 0.01-0.02 of polymalic acid, 0.1-0.3 of coconut oil acid, 0.1-0.2 of betaine, 0.1-0.2 of polyvinyl alcohol and 0.1-0.3 of oxidized starch; soaking sisal hemp and straw in deionized water for 10-12 hours, grinding the sisal hemp and straw into pulp, putting the pulp into a closed cylinder, introducing water vapor with the temperature of 110-300 ℃ and the pressure of 1.0-5.0 MPa, hydrolyzing, drying and grinding the pulp into powder to obtain modified fiber for later use; adding appropriate amount of water into polymalic acid, coconut oleic acid and betaine, stirring at 40-60 deg.C for 0.5-1h, adding modified fiber, oxidized starch and copper sulfate, stirring, filtering, washing the filter residue with distilled water until the filtrate is neutral, and drying at 50-70 deg.C to obtain fiber antibacterial powder; uniformly mixing the fiber antibacterial powder with the rest raw materials prepared in the step (1), and preparing the rice paper by a conventional process; spraying collodion alum solution on the rice paper, and then ironing to obtain the rice paper; the collosol alum solution is prepared from the following raw materials in parts by weight: 8-15 parts of vegetable gum, 3-5 parts of sodium alginate, 2-8 parts of alum and a proper amount of water.

According to the prior art mastered at present, the research on the antibacterial, mildew-proof and moth-proof properties of the rice paper is less, the preparation process is complicated, and the large-scale production is not facilitated, so that the antibacterial, antiseptic and moth-proof effects of the rice paper are fundamentally realized by modifying the existing rice paper pulp.

Disclosure of Invention

In order to solve the technical problems in the prior art, the invention provides the rice paper pulp, the rice paper and the preparation method thereof, wherein the preparation method has the advantages of simple process, small addition amount of an antibacterial agent, high economical and practical properties and good antibacterial and mildewproof effects, through detection, the antibacterial rate of the antibacterial, mildewproof and mothproof rice paper to escherichia coli and staphylococcus aureus reaches more than 99%, the mildewproof grade is 0, the natural color of the rice paper is kept, the rice paper has good ink locking property to ink pigments during writing and drawing, and the effect of painting and calligraphy is excellent.

In order to achieve the effect, the invention adopts the following technical scheme:

the invention aims to provide the rice paper pulp with the functions of resisting bacteria, preventing mildew and preventing worm damage, wherein the raw materials of the rice paper pulp comprise wingceltis bark fibers, sand rice straw fibers and a composite liquid antibacterial agent.

As a preferable technical scheme of the invention, the raw materials of the rice paper pulp comprise the following components in percentage by mass:

25-40 wt% of wingceltis bark fiber;

60-75 wt% of sand rice straw fiber;

0.1-0.5 wt% of composite liquid antibacterial agent.

The mass fraction of the pteroceltis tatarinowii bark fiber may be 26 wt%, 27 wt%, 28 wt%, 29 wt%, 30 wt%, 31 wt%, 32 wt%, 33 wt%, 34 wt%, 35 wt%, 36 wt%, 37 wt%, 38 wt% or 39 wt%, etc., the mass fraction of the shatian straw fiber may be 61 wt%, 62 wt%, 63 wt%, 64 wt%, 65 wt%, 66 wt%, 67 wt%, 68 wt%, 69 wt%, 70 wt%, 71 wt%, 72 wt%, 73 wt%, 74 wt%, etc., and the mass fraction of the composite liquid antibacterial agent may be 0.15 wt%, 0.2 wt%, 0.25 wt%, 0.3 wt%, 0.35 wt%, 0.4 wt%, or 0.45 wt%, etc., but is not limited to the recited values, and other values not recited in the above numerical range are also applicable.

30-35 wt% of wingceltis bark fiber;

65-70 wt% of sand rice straw fiber;

0.2-0.3 wt% of composite liquid antibacterial agent.

As a preferable technical scheme, the compound liquid antibacterial agent comprises an organic antibacterial agent and/or an inorganic antibacterial agent.

As a preferred embodiment of the present invention, the organic antibacterial agent includes any one or a combination of at least two of quaternary ammonium salt antibacterial agents, quaternary phosphonium salt antibacterial agents, biguanide antibacterial agents, alcohol antibacterial agents, phenol antibacterial agents, pyridine antibacterial agents, and isothiazolinone antibacterial agents, and the combination is typically, but not limited to: combinations of quaternary ammonium salt-based antibacterial agents and quaternary phosphonium salt-based antibacterial agents, combinations of quaternary phosphonium salt-based antibacterial agents and biguanide-based antibacterial agents, combinations of biguanide-based antibacterial agents and alcohol-based antibacterial agents, combinations of alcohol-based antibacterial agents and phenol-based antibacterial agents, combinations of phenol-based antibacterial agents and biguanide-based antibacterial agents, combinations of quaternary ammonium salt-based antibacterial agents and pyridine-based antibacterial agents, combinations of pyridine-based antibacterial agents and isothiazolinone-based antibacterial agents, combinations of isothiazolinone-based antibacterial agents and quaternary ammonium salt-based antibacterial agents or combinations of quaternary ammonium salt-based antibacterial agents, biguanide-based antibacterial agents and alcohol-based antibacterial agents, and the like.

As a preferred embodiment of the present invention, the quaternary ammonium salt-based antibacterial agent comprises any one or a combination of at least two of dodecyltrimethylammonium bromide, methacryloxy-benzyl-dimethylammonium chloride or hydroxypropyltrimethylammonium chloride, typical but non-limiting examples of which are: a combination of dodecyltrimethylammonium bromide and methacryloxy-benzyl-dimethylammonium chloride, a combination of methacryloxy-benzyl-dimethylammonium chloride and hydroxypropyltrimethylammonium chloride, a combination of hydroxypropyltrimethylammonium chloride and dodecyltrimethylammonium bromide, or a combination of dodecyltrimethylammonium bromide, methacryloxy-benzyl-dimethylammonium chloride and hydroxypropyltrimethylammonium chloride, and the like.

Preferably, the quaternary phosphonium salt antibacterial agent comprises dodecyl tributyl phosphonium bromide and/or dodecyl triphenyl phosphonium bromide.

Preferably, the biguanide antibacterial agent comprises poly (hexamethylene biguanide) hydrochloride and/or chitosan biguanide hydrochloride.

Preferably, the alcoholic antimicrobial agent comprises any one or a combination of at least two of phenoxyethanol, 1, 2-decanediol or 1, 2-octanediol, typical but non-limiting examples being: a combination of phenoxyethanol and 1, 2-decanediol, a combination of 1, 2-decanediol and 1, 2-octanediol, a combination of 1, 2-octanediol and phenoxyethanol, or a combination of phenoxyethanol, 1, 2-decanediol and 1, 2-octanediol, and the like.

Preferably, the phenolic antibacterial agent is chloroxylenol and/or 4-bromophenol or;

preferably, the pyridine antibacterial agent is any one of or a combination of at least two of thiafloxacin, troxacin or pipemidic acid, typical but non-limiting examples of which are: combinations of thiafloxacin and troxacin, combinations of troxacin and pipemidic acid, combinations of pipemidic acid and thiafloxacin or combinations of thiafloxacin, troxacin and pipemidic acid, etc.

Preferably, the isothiazolinone bactericide comprises any one of 2-methyl-3-isothiazolinone, 2-octyl-4-isothiazolin-3-one or 5-chloro-2-methyl-3-isothiazolinone or a combination of at least two of the following typical but non-limiting examples: a combination of 2-methyl-3-isothiazolinone and 2-octyl-4-isothiazolin-3-one, a combination of 2-octyl-4-isothiazolin-3-one and 5-chloro-2-methyl-3-isothiazolinone, a combination of 5-chloro-2-methyl-3-isothiazolinone and 2-methyl-3-isothiazolinone, or a combination of 2-methyl-3-isothiazolinone, 2-octyl-4-isothiazolin-3-one and 5-chloro-2-methyl-3-isothiazolinone, etc.

As a preferred embodiment of the present invention, the inorganic antibacterial agent includes any one or a combination of at least two of a metal ion-supported zeolite antibacterial agent, a soluble glass antibacterial agent, a clay antibacterial agent, a silica gel antibacterial agent, zinc oxide whiskers, titanium dioxide, or bismuth tungstate, and typical but non-limiting examples of the combination are: a combination of a zeolite antibacterial agent and a soluble glass antibacterial agent, a combination of a soluble glass antibacterial agent and a clay antibacterial agent, a combination of a clay antibacterial agent and a silica gel antibacterial agent, a combination of a silica gel antibacterial agent and zinc oxide whiskers, a combination of zinc oxide whiskers and titanium dioxide, a combination of titanium dioxide and bismuth tungstate, a combination of bismuth tungstate and a zeolite antibacterial agent or a combination of a zeolite antibacterial agent, a soluble glass antibacterial agent and a clay antibacterial agent, and the like.

Preferably, the metal ions include any one of silver ions, copper ions, zinc ions or titanium ions or a combination of at least two of the same, typical but non-limiting examples being: a combination of silver ions and copper ions, a combination of copper ions and zinc ions, a combination of zinc ions and titanium ions, a combination of titanium ions and silver ions, a combination of silver ions, copper ions and zinc ions, or the like.

The invention also aims to provide the antibacterial, mildewproof and mothproof rice paper, which is prepared from the rice paper pulp.

As a preferable technical scheme of the invention, the antibacterial rate of the rice paper is more than 99%.

Preferably, the rice paper has a mildew-proof grade of 0.

The invention also aims to provide a preparation method of the antibacterial, mildewproof and mothproof rice paper, which comprises the following steps:

the rice paper is prepared by fishing, squeezing and drying rice paper pulp in sequence, and the composite liquid antibacterial agent is added into the rice paper pulp before the paper fishing process.

Compared with the prior art, the invention has at least the following beneficial effects:

(1) the invention provides the rice paper with the functions of antibiosis, mould prevention and moth prevention, which has good antibiosis and mould prevention effects, and through detection, the antibiosis rate of the rice paper with the functions of antibiosis, mould prevention and moth prevention on escherichia coli and staphylococcus aureus reaches more than 99%, and the mould prevention level is 0;

(2) the invention provides the rice paper with the functions of resisting bacteria, preventing mildew and preventing moth eating, wherein the natural color of the rice paper is kept, and the rice paper has good ink locking property on ink pigments during writing and painting and has excellent painting and calligraphy effects;

(3) the invention provides a preparation method of antibacterial, mildewproof and mothproof rice paper, which has the advantages of simple process, less addition of an antibacterial agent and high economical and practical properties.

Detailed Description

For the purpose of facilitating an understanding of the present invention, the present invention will now be described by way of examples. It should be understood by those skilled in the art that the examples are only for the understanding of the present invention and should not be construed as the specific limitations of the present invention.

Example 1

The embodiment provides a preparation method of antibacterial, mildewproof and mothproof rice paper, which comprises the following steps:

Wherein the rice paper pulp comprises the following components in percentage by mass:

35 wt% of pteroceltis tatarinowii bark fiber;

64.9 wt% of rice straw fiber of the sand field;

0.1 wt% of methacryloxy-benzyl-dimethyl ammonium chloride.

Example 2

25 wt% of pteroceltis tatarinowii bark fiber;

74.5 wt% of sand straw fiber;

0.5 wt% of poly (hexamethylene biguanide) hydrochloride.

Example 3

wingceltis skin fiber 38.8 wt%;

61.0 wt% of sand straw fiber;

0.2 wt% of phenoxyethanol.

Example 4

34.5 wt% of pteroceltis tatarinowii bark fiber;

65.2 wt% of rice straw fiber in the sand field;

0.3 wt% of thiafloxacin.

Example 5

32 wt% of pteroceltis tatarinowii bark fiber;

67.6 wt% of rice straw fiber in the sand field;

0.4 wt% of 2-methyl-3-isothiazolinone.

Example 6

wingceltis bark fiber 38 wt%;

61.7 wt% of sand straw fiber;

dodecyl tributyl phosphonium bromide 0.3 wt%.

Example 7

wingceltis bark fiber 38 wt%;

61.7 wt% of sand straw fiber;

0.3 wt% of chloroxylenol.

Example 8

wingceltis bark fiber 38 wt%;

61.7 wt% of sand straw fiber;

silver ion-loaded zeolite antibacterial agent (5 wt% loading) 0.3 wt%.

Example 8

36 wt% of pteroceltis tatarinowii bark fiber;

63.8 wt% of sand straw fiber;

copper ion loaded soluble glass antimicrobial (5 wt% loading) 0.2 wt%.

Example 9

36 wt% of pteroceltis tatarinowii bark fiber;

63.8 wt% of sand straw fiber;

0.2 wt% of silica gel antibacterial agent (load 5 wt%) loaded with zinc ions.

Example 10

36 wt% of pteroceltis tatarinowii bark fiber;

63.8 wt% of sand straw fiber;

0.2 wt% of zinc oxide whisker (with the load of 5 wt%) loaded with titanium ions.

Example 11

36 wt% of pteroceltis tatarinowii bark fiber;

63.8 wt% of sand straw fiber;

0.2 wt% of titanium dioxide loaded with silver ions (loading 5 wt%).

Example 12

36 wt% of pteroceltis tatarinowii bark fiber;

63.8 wt% of sand straw fiber;

0.2 wt% of silver ion-loaded bismuth tungstate (loading amount is 5 wt%).

The antibacterial, mildew-proof and mothproof rice paper provided by the embodiments 1 to 12 of the invention is tested for the antibacterial rate, the mildew-proof grade and the mothproof performance of escherichia coli and staphylococcus aureus. The results are shown in Table 1

Wherein, the test method of the antibacterial rate is GB/T20944-2007. (ii) a The mildew-proof rate is measured by GB/T24346-2009. The testing method of the anti-moth performance is GB/T29776-2013.

TABLE 1

	Antibacterial ratio/%)	Mildew resistance rating	Whether or not to prevent moth-eating
				Example 1	99.96％	Level 0	Is that
Example 2	99.72％	Level 0	Is that
				Example 3	99.85％	Level 0	Is that
Example 4	99.64％	Level 0	Is that
				Example 5	99.56％	Level 0	Is that
Example 6	99.49％	Level 0	Is that
				Example 7	99.58％	Level 0	Is that
Example 8	99.98％	Level 0	Is that
				Example 9	99.88％	Level 0	Is that
Example 10	99.65％	Level 0	Is that
				Example 11	99.86％	Level 0	Is that
Example 12	99.92％	Level 0	Is that

As can be seen from the test results in table 1: the rice paper prepared by the embodiments 1-12 has an antibacterial rate of 99% or more against escherichia coli and staphylococcus aureus, a mildew-proof grade of 0, and a mothproof effect.

The applicant states that the present invention is illustrated by the above examples to show the detailed process equipment and process flow of the present invention, but the present invention is not limited to the above detailed process equipment and process flow, i.e. it does not mean that the present invention must rely on the above detailed process equipment and process flow to be implemented. It should be understood by those skilled in the art that any modification of the present invention, equivalent substitutions of the raw materials of the product of the present invention, addition of auxiliary components, selection of specific modes, etc., are within the scope and disclosure of the present invention.

Claims

1. The antibacterial, mildew-proof and moth-proof rice paper pulp is characterized in that the raw materials of the rice paper pulp comprise pteroceltis tatarinowii bark fibers, sand rice straw fibers and a composite liquid antibacterial agent.

2. The rice paper pulp as claimed in claim 1, wherein the raw materials of the rice paper pulp in mass fraction comprise:

25-40 wt% of wingceltis bark fiber;

60-75 wt% of sand rice straw fiber;

0.1-0.5 wt% of composite liquid antibacterial agent.

3. The rice paper pulp as claimed in claim 1 or 2, wherein the raw materials of the rice paper pulp in mass fraction comprise:

30-35 wt% of wingceltis bark fiber;

65-70 wt% of sand rice straw fiber;

0.2-0.3 wt% of composite liquid antibacterial agent.

4. The rice paper pulp according to any one of claims 1 to 3, wherein the composite liquid antibacterial agent comprises an organic antibacterial agent and/or an inorganic antibacterial agent.

5. The rice paper pulp according to claim 4, wherein the organic antibacterial agent comprises any one of quaternary ammonium salt antibacterial agents, quaternary phosphonium salt antibacterial agents, biguanide antibacterial agents, alcohol antibacterial agents, phenol antibacterial agents, pyridine antibacterial agents or isothiazolinone antibacterial agents or a combination of at least two of the foregoing.

6. The rice paper pulp of claim 5, wherein the quaternary ammonium salt-based antibacterial agent comprises any one of or a combination of at least two of dodecyltrimethylammonium bromide, methacryloxy-benzyl-dimethylammonium chloride, or hydroxypropyltrimethylammonium chloride;

preferably, the quaternary phosphonium salt antibacterial agent comprises dodecyl tributyl phosphonium bromide and/or dodecyl triphenyl phosphonium bromide;

preferably, the biguanide antibacterial agent comprises poly (hexamethylene biguanide) hydrochloride and/or chitosan biguanide hydrochloride;

preferably, the alcohol antibacterial agent comprises any one or a combination of at least two of phenoxyethanol, 1, 2-decanediol or 1, 2-octanediol;

preferably, the phenolic antibacterial agent is chloroxylenol and/or 4-bromophenol;

preferably, any one or a combination of at least two of the pyridine antibacterial agents thiafloxacin, troxacin and pipemidic acid;

preferably, the isothiazolinone bactericide comprises any one or a combination of at least two of 2-methyl-3-isothiazolinone, 2-octyl-4-isothiazolin-3-one or 5-chloro-2-methyl-3-isothiazolinone.

7. The rice paper pulp as claimed in claim 4, wherein the inorganic antibacterial agent comprises any one or a combination of at least two of a metal ion-supported zeolite antibacterial agent, a soluble glass antibacterial agent, a clay antibacterial agent, a silica gel antibacterial agent, zinc oxide whiskers, titanium dioxide or bismuth tungstate;

preferably, the metal ions include any one or a combination of at least two of silver ions, copper ions, zinc ions, or titanium ions.

8. An antibacterial, mildew-proof and moth-proof rice paper, which is characterized in that the rice paper is prepared from the rice paper pulp of any one of claims 1 to 7.

9. The rice paper as claimed in claim 8, wherein the antibacterial rate of the rice paper is more than 99%;

preferably, the rice paper has a mildew-proof grade of 0.

10. A method for preparing the rice paper as claimed in claim 8 or 9, wherein the method comprises the following steps: