CN113373726A - Latex and preparation method and application thereof - Google Patents
Latex and preparation method and application thereof Download PDFInfo
- Publication number
- CN113373726A CN113373726A CN202110582911.XA CN202110582911A CN113373726A CN 113373726 A CN113373726 A CN 113373726A CN 202110582911 A CN202110582911 A CN 202110582911A CN 113373726 A CN113373726 A CN 113373726A
- Authority
- CN
- China
- Prior art keywords
- oil
- paper
- latex
- proof
- particles
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP 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
- D21H19/00—Coated paper; Coating material
- D21H19/80—Paper comprising more than one coating
- D21H19/84—Paper comprising more than one coating on both sides of the substrate
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP 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
- D21H19/00—Coated paper; Coating material
- D21H19/10—Coatings without pigments
- D21H19/12—Coatings without pigments applied as a solution using water as the only solvent, e.g. in the presence of acid or alkaline compounds
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP 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
- D21H21/00—Non-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
- D21H21/14—Non-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
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP 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
- D21H21/00—Non-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
- D21H21/14—Non-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
- D21H21/16—Sizing or water-repelling agents
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP 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
- D21H25/00—After-treatment of paper not provided for in groups D21H17/00 - D21H23/00
- D21H25/04—Physical treatment, e.g. heating, irradiating
- D21H25/06—Physical treatment, e.g. heating, irradiating of impregnated or coated paper
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP 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
- D21H27/00—Special paper not otherwise provided for, e.g. made by multi-step processes
- D21H27/10—Packing paper
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W90/00—Enabling technologies or technologies with a potential or indirect contribution to greenhouse gas [GHG] emissions mitigation
- Y02W90/10—Bio-packaging, e.g. packing containers made from renewable resources or bio-plastics
Landscapes
- Paper (AREA)
Abstract
The invention belongs to the field of packaging materials, and discloses a latex, and a preparation method and application thereof. The latex comprises oil-proof particles A and oil-proof particles B, wherein the oil-proof particles A are at least one of polyester emulsion, polyvinyl alcohol emulsion or styrene-acrylic emulsion; the oil-proof particles B are cellulose film-forming agents and/or polymers containing benzene rings. A paper having a surface comprising a coating, the coating being formed from latex. The invention utilizes two oil-proof particles with different compatibility to form heterogeneous oil-proof latex, and can provide a passage for water vapor to pass through while preventing oil, thereby achieving the oil-proof and air-permeable performances. The glue does not contain fluorine, and is very environment-friendly; the latex is applied to the surface of paper to obtain oil-proof and breathable paper which is applied to the field of food packaging, and the paper can be directly crushed and pulped for recycling.
Description
Technical Field
The invention belongs to the field of packaging materials, and particularly relates to a latex, and a preparation method and application thereof.
Background
The grease-proof paper is a special paper capable of preventing grease penetration, and is generally prepared by high-beating-degree treatment and papermaking treatment. At present, more films are coated or oil-proof agents are coated on the surface of paper, so that the paper has the function of preventing oil and fat from permeating. The oil-proof paper is widely applied to food manufacturing and packaging.
At present, high-carbon chain fluorine-containing compounds with low surface energy are mostly adopted at home and abroad as oil-proof agents to treat the surface of paper so as to achieve the oil-proof effect. However, the main component of the fluorine-containing compound is perfluorooctane sulfonyl compound, which has strong durability, is difficult to metabolize and degrade, can be durably accumulated in organisms and environment, and brings huge hidden troubles to food safety and environment.
Except for the fluorine-containing oil-proof agent, the fluorine-free oil-proof agent and the film coating process also endow the paper with oil-proof performance, but the oil-proof paper prepared by the two ways damages the air permeability of the base paper in order to obtain high oil-proof and water-proof barrier property, so that water vapor cannot permeate the barrier layer to be condensed in the packaging bag, and the color, the smell and the taste of food are changed. Particularly, when fried foods, foods to be cooked or microwave-heated are packaged, water vapor emitted from the foods fills the inside of the packaging bag, so that the outer layer of the fried foods contains moisture to become too soft, or stickiness is generated on the paper surface, resulting in a significant deterioration in taste or mouthfeel.
Therefore, it is necessary to provide a material which does not contain fluorine, has improved oil-repellent properties, and has good air permeability.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art described above. The latex is coated on the surface of paper, so that the paper has good oil-proof and water-proof performance, water vapor can easily pass through the latex, and the latex does not contain fluorine and is very environment-friendly. Paper coated with the latex of the invention has wide application in the field of food packaging.
In a first aspect of the invention, a latex is provided.
Specifically, the latex comprises oil-proof particles A and oil-proof particles B, wherein the oil-proof particles A are at least one of polyester emulsion, polyvinyl alcohol emulsion or styrene-acrylic emulsion; the oil-proof particles B are cellulose film-forming agents and/or benzene ring-containing polymers.
Preferably, the oil-resistant particles a are selected from at least one of Polyhydroxyalkanoate (PHA) emulsion, polylactic acid (PLA) emulsion or polyvinyl alcohol (PVA) emulsion.
Preferably, the cellulose film forming agent is cellulose acetate butyrate.
Preferably, the polymer containing a benzene ring is selected from a styrene-acrylic polymer and/or a styrene-butadiene polymer.
Preferably, the latex further comprises an auxiliary agent and/or a solvent.
Preferably, the defoaming agent is selected from at least one of polysiloxane defoaming agent, polyether modified silicone oil, dialkyl phosphate or fatty alcohol.
Preferably, the auxiliary agent comprises a defoaming agent; further preferably, the defoaming agent is an oil-based defoaming agent (e.g., polyether-modified silicone oil).
Preferably, the solvent is water; further preferably, the solvent is deionized water.
Preferably, the latex comprises 12 to 36 parts by weight of oil-proof particles A and 8 to 27 parts by weight of oil-proof particles B; further preferably, the latex comprises 17.6 to 31.5 parts of the oil-proof particles A and 10 to 25 parts of the oil-proof particles B by weight.
Preferably, the latex further comprises 0.4-6 parts of an auxiliary agent according to parts by weight; further preferably, the latex further comprises 0.4-3.5 parts by weight of an auxiliary agent.
Preferably, the latex further comprises 30-80 parts of a solvent according to parts by weight; further preferably, the latex further comprises 40-72 parts by weight of a solvent.
In a second aspect, the present invention provides a process for the preparation of a latex.
Specifically, the preparation method of the latex comprises the following steps:
and stirring and mixing the components to prepare the latex.
Preferably, a method for preparing a latex comprises the following steps:
and mixing the oil-proof particles A with a solvent, then adding the oil-proof particles B, and stirring to obtain the latex.
Preferably, an auxiliary agent is also added in the process of mixing the oil-proof particles A and the solvent.
Preferably, the stirring speed is 700-1500 rpm; further preferably, the stirring speed is 800-1000 rpm. The high-speed stirring is helpful for improving the oil resistance and air permeability of the paper when the prepared latex is applied to the surface of the paper.
Preferably, the stirring time is 10-20 minutes; further preferably, the stirring time is 10 to 15 minutes.
Preferably, the stirring is performed under a closed condition at normal temperature.
In a second aspect the present invention provides the use of a latex.
A paper comprising a coating on a surface of the paper, the coating being formed from the latex of the invention.
The preparation method of the paper comprises the following steps:
taking base paper as a base material, then coating the latex on the surface of the base material, and drying to obtain the paper.
Preferably, the base paper is 180-2The base paper of (1); further preferably, the base paper is 180-2The base paper of (1).
Preferably, the coating is two-pass coating or two-pass coating of the upper surface and the lower surface of the base paper.
Preferably, the coating weight of the latex coated on the surface of the substrate is 7-14.5g/m2(ii) a More preferably, the coating weight of the glue coated on the surface of the substrate is 10-13.5g/m2。
Preferably, hot air is adopted for drying during drying; the temperature of the drying is 102-105 ℃.
Use of the paper in the field of packaging.
Preferably, the packaging field is the field of food packaging.
Compared with the prior art, the invention has the following beneficial effects:
(1) the invention utilizes two oil-proof particles with different compatibility to form heterogeneous oil-proof latex, and can provide a passage for water vapor to pass through while preventing oil, thereby achieving the oil-proof and air-permeable performances.
(2) The latex does not contain fluorine, and is very environment-friendly.
(3) The latex is applied to the surface of paper to obtain oil-proof and breathable paper, and the paper can be directly crushed and pulped for recycling and utilization in the field of food packaging.
Drawings
FIG. 1 is a schematic structural view of paper produced in example 1 of the present invention;
FIG. 2 is a graph comparing the oil resistance of the paper prepared in example 2 with that of the base paper and the coated paper;
FIG. 3 is a diagram of recycled slurry of paper and laminated paper prepared in example 2 of the present invention.
Detailed Description
In order to make the technical solutions of the present invention more apparent to those skilled in the art, the following examples are given for illustration. It should be noted that the following examples are not intended to limit the scope of the claimed invention.
The starting materials, reagents or apparatuses used in the following examples are conventionally commercially available or can be obtained by conventionally known methods, unless otherwise specified.
Polyhydroxyalkanoate (PHA) emulsions used in embodiments of the present invention may be sold by cyanamid company.
Polylactic acid (PLA) emulsions used in the examples of the present invention may be sold by anhuofeng company.
The styrene-acrylic emulsion used in the embodiment of the invention can be sold by the chemical industry of Zhuhai golden chicken, and the product model is SA 618.
The polyvinyl alcohol (PVA) emulsion used in the examples of the present invention is sold by vinpocetine chemical, product number BF 17.
Cellulose acetate butyrate for use in embodiments of the present invention may be sold by eastman corporation, usa.
Example 1: latex and paper production
A latex, which comprises 17.6 parts of oil-proof particles A, 20 parts of oil-proof particles B, 2 parts of polyether modified silicone oil and 60.4 parts of deionized water; the oil-proof particles A are Polyhydroxyalkanoate (PHA) emulsion; the oil-proof particle B is cellulose acetate butyrate.
A method of preparing a latex comprising the steps of:
stirring and mixing the oil-proof particles A, the polyether modified silicone oil and the deionized water, then adding the oil-proof particles B, and stirring at the stirring speed of 1000 revolutions per minute for 15 minutes to obtain the latex.
A paper comprising a coating on the surface of the paper, the coating being formed from the above latex.
The preparation method of the paper comprises the following steps:
taking 200g/m2The latex was applied to the surface of a base material (upper and lower surfaces of the base material, coating weight: 10.5 g/m)2) Drying with hot air at 105 deg.C to obtain paper.
FIG. 1 is a schematic structural view of a paper produced in example 1 of the present invention, in which "1" represents a coating layer and "2" represents a base paper. As can be seen from fig. 1, the base paper has coatings on both its upper and lower surfaces.
The paper produced in this example was tested for the following test items: KIT (KIT is a kind of test paper for preventingMethod for oil rating, a test method routine in the art), oil resistance rating, water vapor transmission rate in a high humidity environment (38 ℃, 90% relative humidity), the paper produced in this example had a KIT oil resistance rating of 9, and a water vapor transmission rate of 2300g/m2·d。
Example 2: latex and paper production
A latex comprises 25 parts of oil-proof particles A, 25 parts of oil-proof particles B, 3 parts of polyether modified silicone oil and 47 parts of deionized water; the oil-proof particles A are Polyhydroxyalkanoate (PHA) emulsion; the oil-proof particle B is cellulose acetate butyrate.
A method of preparing a latex comprising the steps of:
stirring and mixing the oil-proof particles A, the polyether modified silicone oil and the deionized water, then adding the oil-proof particles B, and stirring at the stirring speed of 1000 revolutions per minute for 15 minutes to obtain the latex.
A paper comprising a coating on the surface of the paper, the coating being formed from the above latex.
The preparation method of the paper comprises the following steps:
taking 200g/m2The latex was applied to the surface of a base material (upper and lower surfaces of the base material, coating weight was 12.4 g/m)2) Drying with hot air at 105 deg.C to obtain paper.
The paper produced in this example was tested for the following test items: KIT oil repellency rating, Water vapor Transmission under high humidity conditions (38 ℃ C., 90% relative humidity), the paper produced in this example had a KIT oil repellency rating of 9 and a water vapor Transmission of 2375g/m2·d。
FIG. 2 is a graph comparing the oil resistance of the paper prepared in example 2 with that of the base paper and the coated paper; in fig. 2, sample 2 shows the paper obtained in example 2, sample 3 is a coated paper of the prior art, sample 1 is a base paper (comparative example 4 shows a base paper). In fig. 2, the upper half is a diagram in which rapeseed oil is dropped on a sample, and the lower half is a diagram in which rapeseed oil is wiped. Rapeseed oil is dripped on the surface of the base paper, the base paper is soaked by the rapeseed oil after 10 seconds, and obvious oil penetration points are formed after wiping. The paper prepared in example 2 and the coated paper in the prior art have no oil penetration point after rapeseed oil is dripped for 1 minute, which shows that the paper prepared in example 2 has good oil resistance.
FIG. 3 is a diagram of recycled slurry of paper and laminated paper prepared in example 2 of the present invention; in fig. 3, sample 2 is the paper obtained in example 2, and sample 3 is the prior art laminated paper. The samples are beaten and rewound to obtain recycled pulp, and as can be seen from fig. 3, the laminated paper in the prior art is difficult to be pulped due to the fact that the laminated paper contains plastics, and a large number of plastic fragments (shown as sample 3 in fig. 3) exist after the laminated paper is rewound, while the paper prepared in the embodiment 2 can be directly rewound, and the obtained recycled pulp does not contain fragments (shown as sample 2 in fig. 3), so that the recycled pulp is beneficial to recycling of the paper.
Example 3: latex and paper production
A latex comprises 25 parts of oil-proof particles A, 20 parts of oil-proof particles B, 3 parts of polyether modified silicone oil and 52 parts of deionized water; the oil-proof particles A are Polyhydroxyalkanoate (PHA) emulsion; the oil-proof particles B are styrene-butadiene polymers.
A method of preparing a latex comprising the steps of:
stirring and mixing the oil-proof particles A, the polyether modified silicone oil and the deionized water, then adding the oil-proof particles B, and stirring at the stirring speed of 800 revolutions per minute for 15 minutes to obtain the latex.
A paper comprising a coating on the surface of the paper, the coating being formed from the above latex.
The preparation method of the paper comprises the following steps:
taking 200g/m2The latex was coated on the surface of a base material (double-coated front surface, coating weight 11.7 g/m)2) Drying with hot air at 105 deg.C to obtain paper.
The paper produced in this example was tested for the following test items: KIT oil repellency rating, Water vapor Transmission under high humidity conditions (38 ℃ C., 90% relative humidity), the paper produced in this example had a KIT oil repellency rating of 9 and a water vapor Transmission of 2361g/m2·d。
Example 4: latex and paper production
A latex, which comprises 23.5 parts of oil-proof particles A, 18 parts of oil-proof particles B, 3 parts of polyether modified silicone oil and 55.5 parts of deionized water; the oil-proof particles A are Polyhydroxyalkanoate (PHA) emulsion; the oil-proof particles B are styrene-butadiene polymers.
A method of preparing a latex comprising the steps of:
stirring and mixing the oil-proof particles A, the polyether modified silicone oil and the deionized water, then adding the oil-proof particles B, and stirring at the stirring speed of 800 revolutions per minute for 15 minutes to obtain the latex.
A paper comprising a coating on the surface of the paper, the coating being formed from the above latex.
The preparation method of the paper comprises the following steps:
taking 200g/m2The latex was coated on the surface of a base material (double-coated front surface, coating amount 12.0 g/m)2) Drying with hot air at 105 deg.C to obtain paper.
The paper produced in this example was tested for the following test items: KIT oil repellency rating, Water vapor Transmission under high humidity conditions (38 ℃ C., 90% relative humidity), the paper produced in this example had a KIT oil repellency rating of 9 and a water vapor Transmission of 2397g/m2·d。
Example 5: latex and paper production
A latex comprises 19 parts of oil-proof particles A, 15 parts of oil-proof particles B, 2.5 parts of polyether modified silicone oil and 63.5 parts of deionized water; the oil-proof particles A are Polyhydroxyalkanoate (PHA) emulsion; the oil-proof particles B are styrene-butadiene polymers.
A method of preparing a latex comprising the steps of:
stirring and mixing the oil-proof particles A, the polyether modified silicone oil and the deionized water, then adding the oil-proof particles B, and stirring at the stirring speed of 800 revolutions per minute for 15 minutes to obtain the latex.
A paper comprising a coating on the surface of the paper, the coating being formed from the above latex.
The preparation method of the paper comprises the following steps:
taking 200g/m2The latex was coated on the surface of a base material (double-coated front surface, coating amount 10.2 g/m)2) Drying with hot air at 105 deg.C to obtain paper.
The paper produced in this example was tested for the following test items: KIT oil repellency rating, Water vapor Transmission under high humidity conditions (38 ℃ C., 90% relative humidity), the paper produced in this example exhibited a KIT oil repellency rating of 9 and a water vapor Transmission of 2422g/m2·d。
Example 6: latex and paper production
A latex comprises 25 parts of oil-proof particles A, 12 parts of oil-proof particles B, 3 parts of polyether modified silicone oil and 60 parts of deionized water; the oil-proof particles A are polylactic acid (PLA) emulsion; the oil-proof particles B are styrene-acrylic acid polymers.
A method of preparing a latex comprising the steps of:
stirring and mixing the oil-proof particles A, the polyether modified silicone oil and the deionized water, then adding the oil-proof particles B, and stirring at the stirring speed of 800 revolutions per minute for 15 minutes to obtain the latex.
A paper comprising a coating on the surface of the paper, the coating being formed from the above latex.
The preparation method of the paper comprises the following steps:
taking 200g/m2The latex was coated on the surface of a base material (double-coated front surface, coating amount 12.6 g/m)2) Drying with hot air at 105 deg.C to obtain paper.
The paper produced in this example was tested for the following test items: KIT oil repellency rating, Water vapor Transmission in a high humidity Environment (38 ℃ C., 90% relative humidity), the paper produced in this example had a KIT oil repellency rating of 9 and a water vapor Transmission of 2312g/m2·d。
Example 7: latex and paper production
A latex, which comprises 31.5 parts of oil-proof particles A, 18 parts of oil-proof particles B, 3 parts of polyether modified silicone oil and 47.5 parts of deionized water; the oil-proof particles A are polylactic acid (PLA) emulsion; the oil-proof particles B are styrene-butadiene polymers.
A method of preparing a latex comprising the steps of:
stirring and mixing the oil-proof particles A, the polyether modified silicone oil and the deionized water, then adding the oil-proof particles B, and stirring at the stirring speed of 800 revolutions per minute for 15 minutes to obtain the latex.
A paper comprising a coating on the surface of the paper, the coating being formed from the above latex.
The preparation method of the paper comprises the following steps:
taking 200g/m2The latex was coated on the surface of a base material (double-coated front surface, coating amount: 13.2 g/m)2) Drying with hot air at 105 deg.C to obtain paper.
The paper produced in this example was tested for the following test items: KIT oil repellency rating, Water vapor Transmission under high humidity conditions (38 ℃ C., relative humidity of 90%), the paper produced in this example had a KIT oil repellency rating of 9 and a Water vapor Transmission of 2308g/m2·d。
Example 8: latex and paper production
A latex comprising 30 parts of oil-resistant particles A, 10 parts of oil-resistant particles B, 3 parts of a polysiloxane antifoaming agent, and 57 parts of deionized water; the oil-proof particles A are polylactic acid (PLA) emulsion; the oil-proof particles B are styrene-acrylic acid polymers.
A method of preparing a latex comprising the steps of:
stirring and mixing the oil-proof particles A, the polyether modified silicone oil and the deionized water, then adding the oil-proof particles B, and stirring at the stirring speed of 800 revolutions per minute for 15 minutes to obtain the latex.
A paper comprising a coating on the surface of the paper, the coating being formed from the above latex.
The preparation method of the paper comprises the following steps:
taking 200g/m2The latex was coated on the surface of a base material (double-coated front surface, coating weight 11.4 g/m)2) Drying with hot air at 105 deg.C to obtain paper.
The paper produced in this example was tested for the following test items: KIT oil repellency rating, Water vapor Transmission under high humidity conditions (38 ℃ C., 90% relative humidity), the paper produced in this example had a KIT oil repellency rating of 9 and a water vapor Transmission of 2451g/m2·d。
Example 9: latex and paper production
A latex comprises 28 parts of oil-proof particles A, 12 parts of oil-proof particles B, 2 parts of polyether modified silicone oil and 58 parts of deionized water; the oil-proof particles A are styrene-acrylic emulsion; the oil-proof particles B are styrene-acrylic acid polymers.
A method of preparing a latex comprising the steps of:
stirring and mixing the oil-proof particles A, the polyether modified silicone oil and the deionized water, then adding the oil-proof particles B, and stirring at the stirring speed of 800 revolutions per minute for 15 minutes to obtain the latex.
A paper comprising a coating on the surface of the paper, the coating being formed from the above latex.
The preparation method of the paper comprises the following steps:
taking 200g/m2The latex was coated on the surface of a base material (double-coated front surface, coating weight 11.5 g/m)2) Drying with hot air at 105 deg.C to obtain paper.
The paper produced in this example was tested for the following test items: KIT oil repellency rating, Water vapor Transmission under high humidity conditions (38 ℃ C., 90% relative humidity), the paper produced in this example exhibited a KIT oil repellency rating of 9 and a water vapor Transmission of 2426g/m2·d。
Example 10: latex and paper production
A latex comprises 19 parts of oil-proof particles A, 25 parts of oil-proof particles B, 3 parts of polyether modified silicone oil and 53 parts of deionized water; the oil-proof particles A are styrene-acrylic emulsion; the oil-proof particles B are styrene-acrylic acid polymers.
A method of preparing a latex comprising the steps of:
stirring and mixing the oil-proof particles A, the polyether modified silicone oil and the deionized water, then adding the oil-proof particles B, and stirring at the stirring speed of 800 revolutions per minute for 15 minutes to obtain the latex.
A paper comprising a coating on the surface of the paper, the coating being formed from the above latex.
The preparation method of the paper comprises the following steps:
taking 200g/m2The latex was coated on the surface of a base material (double-coated front surface, coating amount 12.1 g/m)2) Drying with hot air at 105 deg.C to obtain paper.
The paper produced in this example was tested for the following test items: KIT oil repellency rating, Water vapor Transmission under high humidity conditions (38 ℃ C., 90% relative humidity), the paper produced in this example had a KIT oil repellency rating of 9 and a water vapor Transmission of 2417g/m2·d。
Example 11: latex and paper production
A latex, which comprises 23 parts of oil-proof particles A, 23 parts of oil-proof particles B, 3 parts of polyether modified silicone oil and 51 parts of deionized water; the oil-proof particles A are styrene-acrylic emulsion; the oil-proof particles B are styrene-butadiene polymers.
A method of preparing a latex comprising the steps of:
stirring and mixing the oil-proof particles A, the polyether modified silicone oil and the deionized water, then adding the oil-proof particles B, and stirring at the stirring speed of 800 revolutions per minute for 15 minutes to obtain the latex.
A paper comprising a coating on the surface of the paper, the coating being formed from the above latex.
The preparation method of the paper comprises the following steps:
taking 200g/m2As a base materialThen, the latex was applied onto the surface of a substrate (double-coated on the front side in an amount of 13.5 g/m)2) Drying with hot air at 105 deg.C to obtain paper.
The paper produced in this example was tested for the following test items: KIT oil repellency rating, Water vapor Transmission under high humidity conditions (38 ℃ C., relative humidity of 90%), the paper produced in this example had a KIT oil repellency rating of 9 and a water vapor Transmission of 2339g/m2·d。
Example 12: latex and paper production
A latex comprises 15 parts of oil-proof particles A, 25 parts of oil-proof particles B, 3 parts of polyether modified silicone oil and 57 parts of deionized water; the oil-proof particles A are styrene-acrylic emulsion; the oil-proof particle B is cellulose acetate butyrate.
A method of preparing a latex comprising the steps of:
stirring and mixing the oil-proof particles A, the polyether modified silicone oil and the deionized water, then adding the oil-proof particles B, and stirring at the stirring speed of 800 revolutions per minute for 15 minutes to obtain the latex.
A paper comprising a coating on the surface of the paper, the coating being formed from the above latex.
The preparation method of the paper comprises the following steps:
taking 200g/m2The latex was coated on the surface of a base material (double-coated front surface, coating amount 12.7 g/m)2) Drying with hot air at 105 deg.C to obtain paper.
The paper produced in this example was tested for the following test items: KIT oil repellency rating, Water vapor Transmission under high humidity conditions (38 ℃ C., relative humidity of 90%), the paper produced in this example had a KIT oil repellency rating of 9 and a water vapor Transmission of 2502g/m2·d。
Example 13: latex and paper production
Example 13 differs from example 12 only in that the stirring speed is 200 rpm and the remaining components and preparation method are the same as in example 13.
The paper produced in this example was tested for the following test items: KIT oil repellency rating, Water vapor Transmission under high humidity conditions, the paper produced in this example had a KIT oil repellency rating of 9 and a Water vapor Transmission of 2445g/m2·d。
Comparative example 1
Comparative example 1 is different from example 2 only in that the latex of comparative example 1 was prepared without adding Polyhydroxyalkanoate (PHA) emulsion, and the remaining components and preparation method were the same as example 2.
The paper produced in this comparative example was tested for the following test items: KIT oil repellency rating, Water vapor Transmission Rate in a high humidity Environment (38 ℃, 90% relative humidity), the paper produced in this comparative example exhibited a KIT oil repellency rating of 9 and a Water vapor Transmission Rate of 1033g/m2·d。
Comparative example 2
Comparative example 2 is different from example 6 only in that the latex of comparative example 2 is prepared without addition polymerization of a lactic acid (PLA) emulsion, and the remaining components and preparation method are the same as example 6.
The paper produced in this comparative example was tested for the following test items: KIT oil repellency rating, Water vapor Transmission Rate in a high humidity Environment (38 ℃, 90% relative humidity), the paper produced in this comparative example exhibited a KIT oil repellency rating of 8 and a Water vapor Transmission Rate of 1086g/m2·d。
Comparative example 3
Comparative example 3 is different from example 7 only in that the latex of comparative example 3 is prepared without adding a polylactic acid (PLA) emulsion, and the remaining components and preparation method are the same as example 7.
The paper produced in this comparative example was tested for the following test items: KIT oil repellency rating, Water vapor Transmission Rate in a high humidity Environment (38 ℃, 90% relative humidity), the paper produced in this comparative example had a KIT oil repellency rating of 9 and a Water vapor Transmission Rate of 1088g/m2·d。
Comparative example 4
Comparative example 4 is the base paper used in example 2.
The base paper of this comparative example was tested by the test items including: KIT oil repellency rating, Water vapor Transmission Rate in a high humidity Environment (38 ℃, 90% relative humidity), the paper produced in this comparative example exhibited a KIT oil repellency rating of 1 and a Water vapor Transmission Rate of 3528g/m2·d。
The paper prepared by the embodiment of the invention has oil-proof air permeability and can be widely applied to the field of food packaging.
Claims (10)
1. The latex is characterized by comprising oil-proof particles A and oil-proof particles B, wherein the oil-proof particles A are at least one of polyester emulsion, polyvinyl alcohol emulsion or styrene-acrylic emulsion; the oil-proof particles B are cellulose film-forming agents and/or benzene ring-containing polymers.
2. The latex according to claim 1, wherein the oil-repellent particles A are selected from at least one of polyhydroxyalkanoate emulsion, polylactic acid emulsion or polyvinyl alcohol emulsion; the cellulose film forming agent is cellulose acetate butyrate; the polymer containing benzene rings is selected from styrene-acrylic acid polymer and/or styrene-butadiene polymer.
3. The latex according to claim 1, further comprising an adjuvant and/or a solvent.
4. The latex according to claim 1, characterized in that it comprises, in parts by weight, 12 to 36 parts of oil-repellent particles A and 8 to 27 parts of oil-repellent particles B.
5. The process for the preparation of latices according to any of claims 1 to 4, characterized in that it comprises the following steps:
and stirring and mixing the components to prepare the latex.
6. The method as claimed in claim 5, wherein the stirring speed is 700-1500 rpm; the stirring time is 10-20 minutes.
7. A paper, characterized in that the surface of the paper comprises a coating formed from the latex of any one of claims 1 to 4.
8. The method of making the paper of claim 7, comprising the steps of:
and (3) taking a base material, coating the latex on the surface of the base material, and drying to obtain the paper.
9. Use of the paper of claim 7 in the field of packaging.
10. Use according to claim 9, wherein the packaging field is the field of food packaging.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110582911.XA CN113373726B (en) | 2021-05-27 | 2021-05-27 | Latex and preparation method and application thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110582911.XA CN113373726B (en) | 2021-05-27 | 2021-05-27 | Latex and preparation method and application thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113373726A true CN113373726A (en) | 2021-09-10 |
| CN113373726B CN113373726B (en) | 2022-11-18 |
Family
ID=77572239
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110582911.XA Active CN113373726B (en) | 2021-05-27 | 2021-05-27 | Latex and preparation method and application thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113373726B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114960278A (en) * | 2022-06-09 | 2022-08-30 | 浙江金晟环保股份有限公司 | Preparation method of plant fiber laminating PHA oil-proof material |
Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004076189A (en) * | 2002-08-15 | 2004-03-11 | Mitsubishi Corp | Oilproof paper and method for producing the same |
| US20040121079A1 (en) * | 2002-04-12 | 2004-06-24 | Robert Urscheler | Method of producing a multilayer coated substrate having improved barrier properties |
| CN1861680A (en) * | 2006-04-29 | 2006-11-15 | 广州市白云化工实业有限公司 | Low fluorine content material and synthesizing process thereof |
| US20080281042A1 (en) * | 2006-09-20 | 2008-11-13 | Nanopaper, Llc | Grease resistant formulations |
| US20100203348A1 (en) * | 2009-01-21 | 2010-08-12 | Dellinger David A | Moisture resistant coating |
| CN102191725A (en) * | 2011-03-12 | 2011-09-21 | 郭友实 | Production method of high-performance latex paper |
| WO2014006269A1 (en) * | 2012-07-05 | 2014-01-09 | Upm-Kymmene Corporation | Package for foodstuff |
| JP2015500927A (en) * | 2011-12-06 | 2015-01-08 | ビーエーエスエフ ソシエタス・ヨーロピアＢａｓｆ Ｓｅ | Paper packaging and cardboard packaging with barrier coating |
| JP2015151647A (en) * | 2014-02-17 | 2015-08-24 | 王子ホールディングス株式会社 | Water-repellent oil-proof paper and production method thereof |
| JP2016191167A (en) * | 2015-03-31 | 2016-11-10 | 北越紀州製紙株式会社 | Waterproof and oilproof paper |
| CN107164996A (en) * | 2017-06-05 | 2017-09-15 | 青岛榕信工贸有限公司 | A kind of packaging material for food prepared with latex coating |
| US20170350074A1 (en) * | 2014-12-23 | 2017-12-07 | Delfortgroup Ag | Environment-Friendly Packaging Paper for Food |
| US20200056052A1 (en) * | 2016-10-31 | 2020-02-20 | Sun Chemical Corporation | Grease, oil, and water resistant coating compositions |
| CN111655929A (en) * | 2017-11-14 | 2020-09-11 | Aw品牌有限公司 | Recyclable and repulpable translucent or transparent paper and packaging applications thereof |
| CN111749042A (en) * | 2020-07-14 | 2020-10-09 | 广东彩乐智能包装科技有限公司 | Water-proof and oil-proof agent, preparation method and application |
-
2021
- 2021-05-27 CN CN202110582911.XA patent/CN113373726B/en active Active
Patent Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040121079A1 (en) * | 2002-04-12 | 2004-06-24 | Robert Urscheler | Method of producing a multilayer coated substrate having improved barrier properties |
| JP2004076189A (en) * | 2002-08-15 | 2004-03-11 | Mitsubishi Corp | Oilproof paper and method for producing the same |
| CN1861680A (en) * | 2006-04-29 | 2006-11-15 | 广州市白云化工实业有限公司 | Low fluorine content material and synthesizing process thereof |
| US20080281042A1 (en) * | 2006-09-20 | 2008-11-13 | Nanopaper, Llc | Grease resistant formulations |
| US20100203348A1 (en) * | 2009-01-21 | 2010-08-12 | Dellinger David A | Moisture resistant coating |
| CN102191725A (en) * | 2011-03-12 | 2011-09-21 | 郭友实 | Production method of high-performance latex paper |
| JP2015500927A (en) * | 2011-12-06 | 2015-01-08 | ビーエーエスエフ ソシエタス・ヨーロピアＢａｓｆ Ｓｅ | Paper packaging and cardboard packaging with barrier coating |
| WO2014006269A1 (en) * | 2012-07-05 | 2014-01-09 | Upm-Kymmene Corporation | Package for foodstuff |
| JP2015151647A (en) * | 2014-02-17 | 2015-08-24 | 王子ホールディングス株式会社 | Water-repellent oil-proof paper and production method thereof |
| US20170350074A1 (en) * | 2014-12-23 | 2017-12-07 | Delfortgroup Ag | Environment-Friendly Packaging Paper for Food |
| JP2016191167A (en) * | 2015-03-31 | 2016-11-10 | 北越紀州製紙株式会社 | Waterproof and oilproof paper |
| US20200056052A1 (en) * | 2016-10-31 | 2020-02-20 | Sun Chemical Corporation | Grease, oil, and water resistant coating compositions |
| CN107164996A (en) * | 2017-06-05 | 2017-09-15 | 青岛榕信工贸有限公司 | A kind of packaging material for food prepared with latex coating |
| CN111655929A (en) * | 2017-11-14 | 2020-09-11 | Aw品牌有限公司 | Recyclable and repulpable translucent or transparent paper and packaging applications thereof |
| CN111749042A (en) * | 2020-07-14 | 2020-10-09 | 广东彩乐智能包装科技有限公司 | Water-proof and oil-proof agent, preparation method and application |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114960278A (en) * | 2022-06-09 | 2022-08-30 | 浙江金晟环保股份有限公司 | Preparation method of plant fiber laminating PHA oil-proof material |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113373726B (en) | 2022-11-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US2985545A (en) | Method of rendering cellulosic material non-adherent and article produced thereby | |
| WO2002014426A1 (en) | Formulation for achievement of oil and grease resistance and release paper properties | |
| CN113373726B (en) | Latex and preparation method and application thereof | |
| CN114990936B (en) | Bio-based waterproof and oilproof packaging paper and preparation method thereof | |
| CN105401481B (en) | A kind of surface treated electronic carrier tape dedicated raw paper and preparation method thereof | |
| CA2048571A1 (en) | Solvent blockers and multilayer barrier coatings for thin films | |
| CN106833139A (en) | A kind of preparation of cellulose nano-fibrous base oil fat barrier coat and its application process | |
| US3046160A (en) | Process for treating paper with silicones | |
| JP6759355B2 (en) | Aqueous coating composition | |
| CN115260905A (en) | Starch-based degradable waterproof and oilproof coating as well as preparation method and application thereof | |
| WO2016027841A1 (en) | Paper composite, packaging material and method for producing paper composite | |
| KR101666835B1 (en) | Eco-friendly and water-soluble food wrapping paper with a moisture-proof, oil resistance, water resistance and heat-sealing by multi-layer coating technology and method of preparing the same | |
| CN109594422B (en) | Multifunctional paper for food packaging and processing and manufacturing method thereof | |
| US3419508A (en) | Cellulose surfaces and method of treating | |
| CN114606800A (en) | Paper-based environment-friendly coating and preparation method and application thereof | |
| CN112761028B (en) | Moisture-proof packaging paper and preparation method thereof | |
| US2128296A (en) | Coated paper | |
| JP7470680B2 (en) | Polymer-coated paper or paperboard | |
| US2391619A (en) | Method of forming composite materials | |
| CN117144720B (en) | White cardboard for packaging and preparation method and application thereof | |
| US2100377A (en) | Article of manufacture and method of making same | |
| SU817120A1 (en) | Spacing paper | |
| RU2785320C1 (en) | High barrier recyclable product based on paper or cardboard | |
| US2030962A (en) | Moistureproof material and method of making same | |
| TW201610264A (en) | Non-fluorine oil-proof paper manufacturing method and non-fluorine oil-proof paper made by the same |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |