CN112759944A - Degradable bamboo fiber coffee grounds paper cup and preparation method thereof - Google Patents
Degradable bamboo fiber coffee grounds paper cup and preparation method thereof Download PDFInfo
- Publication number
- CN112759944A CN112759944A CN202110049630.8A CN202110049630A CN112759944A CN 112759944 A CN112759944 A CN 112759944A CN 202110049630 A CN202110049630 A CN 202110049630A CN 112759944 A CN112759944 A CN 112759944A
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- bamboo fiber
- coffee grounds
- paper cup
- degradable
- pulp
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47G—HOUSEHOLD OR TABLE EQUIPMENT
- A47G19/00—Table service
- A47G19/22—Drinking vessels or saucers used for table service
- A47G19/2205—Drinking glasses or vessels
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L97/00—Compositions of lignin-containing materials
- C08L97/02—Lignocellulosic material, e.g. wood, straw or bagasse
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/06—Biodegradable
Abstract
The invention provides a degradable bamboo fiber coffee grounds paper cup and a preparation method thereof, and solves the technical problems that a coated paper cup in the prior art can have adverse effects on human health and harm to the environment after being used for a long time. The raw materials for preparing the coffee bean curd comprise bamboo fiber pulp, coffee grounds and food-grade adhesive, wherein the addition amount of the coffee grounds is 20% -70% of the absolute dry weight of the bamboo fiber pulp; the addition amount of the food-grade adhesive is 0.2-0.5% of the oven-dried weight of the bamboo fiber pulp. The degradable bamboo fiber coffee grounds paper cup and the preparation method thereof provided by the invention take bamboo fiber pulp and coffee grounds as main raw materials, and are all natural degradable organic matters; the degradable environment-friendly paper cup prepared by mixing the coffee grounds and the bamboo fibers can reduce the generation of white pollution, realize the resource utilization of coffee grounds wastes, is beneficial to the environment and has low production cost.
Description
Technical Field
The invention relates to a paper cup, in particular to a paper cup capable of degrading bamboo fiber coffee grounds and a preparation method thereof.
Background
Plastic cups are a material that is used in large quantities, particularly for the manufacture of feeding bottles, space cups and the like. The plastic is often added with a plasticizer which contains some toxic chemical substances, when hot water or boiled water is filled in the plastic cup, the toxic chemical substances are easily diluted into the water, and the interior of the plastic has a plurality of pores in a microscopic structure, so that dirt is hidden in the pores, and bacteria can easily propagate when the plastic is not cleaned completely.
Generally, the disposable plastic cups are used in beverage shops, hot and cold beverage shops, milky tea shops, hotels, restaurants and coffee shops at the maximum, various plastic cup-contained carried-out beverages are provided, the disposable plastic cups are used on site, the disposable plastic cups belong to non-degradable products, a large number of people throw the disposable plastic cups at will after drinking the beverages, and the disposable plastic cups become a main source of 'white pollution'.
At present, most of paper cups commonly used are coated paper cups, and the parts of the paper cups, which are contacted with food, are still made of PE (polyethylene) plastics, so that the paper cups have great harm to human bodies and the environment. Recent research results from the Indian institute of technology and technology demonstrated that within 15 minutes of a laminated paper cup containing hot coffee or tea, the inner micro plastic layer of the cup degrades and it releases 25000 micron-sized particles into the hot beverage. An average person drinking three cups of tea or coffee daily with disposable paper cups will ingest 75000 plastic particles that are invisible to the naked eye. This micro-plastic can act as a carrier for contaminants: toxic heavy metals such as ions, palladium, chromium and cadmium, and organic compounds which have hydrophobic properties and can permeate the animal kingdom, etc. If the food is taken for a long time, the food will have immeasurable influence on the health of human bodies.
The applicant has found that the prior art has at least the following technical problems:
the laminated paper cup in the prior art can generate adverse effects on human health after long-term use and has harm to the environment.
Disclosure of Invention
The invention aims to provide a degradable bamboo fiber coffee grounds paper cup and a preparation method thereof, and aims to solve the technical problems that a coated paper cup in the prior art can have adverse effects on human health and harm to the environment after being used for a long time. The technical effects that can be produced by the preferred technical scheme in the technical schemes provided by the invention are described in detail in the following.
In order to achieve the purpose, the invention provides the following technical scheme:
the degradable bamboo fiber coffee grounds paper cup provided by the invention is prepared from bamboo fiber pulp, coffee grounds and food-grade adhesive, wherein the addition amount of the coffee grounds is 20% -70% of the absolute dry weight of the bamboo fiber pulp; the addition amount of the food-grade adhesive is 0.2-0.5% of the oven-dried weight of the bamboo fiber pulp.
Furthermore, the addition amount of the coffee grounds is 35-55% of the oven-dried weight of the bamboo fiber pulp, and the addition amount of the food-grade adhesive is 0.3-0.4% of the oven-dried weight of the bamboo fiber pulp.
Furthermore, the addition amount of the coffee grounds is 48% of the oven-dried weight of the bamboo fiber pulp, and the addition amount of the food-grade adhesive is 0.35% of the oven-dried weight of the bamboo fiber pulp.
Further, the beating degree of the bamboo fiber slurry is 20-40 SR degrees.
Further, the granularity of the coffee grounds is larger than 200 meshes.
Further, the bamboo fiber pulp is natural color bamboo fiber pulp or bleached bamboo fiber pulp.
Further, the food-grade adhesive is 2-hydroxy-3- (trimethylammonio) propyl ether starch chloride.
The invention provides a preparation method of a degradable bamboo fiber coffee grounds paper cup, which comprises the following steps:
(1) pulping the bamboo fiber pulp until the pulping degree is 20-40 SR degrees;
(2) grinding the coffee grounds to a particle size of greater than 200 mesh;
(3) mixing the bamboo fiber slurry pulped in the step (1) and the coffee grounds ground in the step (2) according to a ratio, adding a food-grade adhesive for pulp preparation, and uniformly mixing to obtain mixed pulp;
(4) sending the mixed pulp obtained in the step (3) into a paper mold former for pressing to obtain a pressed blank;
(5) and (4) drying the pressed blank obtained in the step (4), and obtaining the degradable bamboo fiber coffee grounds paper cup after drying.
Further, in the step (5), the drying temperature is 150-220 ℃ and the drying time is 15-20 s.
Based on the technical scheme, the embodiment of the invention can at least produce the following technical effects:
(1) the degradable bamboo fiber coffee grounds paper cup and the preparation method thereof provided by the invention take bamboo fiber pulp and coffee grounds as main raw materials, the production process of the bamboo fiber pulp is free of chlorine, sulfur and harmful additives, the product is safe and healthy, and the paper cup is an excellent raw material for producing food packaging paper; the coffee grounds are wastes of coffee production plants or beverage shops, and the main components of the coffee grounds are purely natural degradable organic matters; the bamboo fiber cells are slender and good in strength, can be used as aggregate and reinforcing steel bars, and the coffee grounds are filled when the fibers are short and thick; the two raw materials are combined for forming and are mutually compensated, the two raw materials are organic matters and are both green and degradable, and finally, the prepared cup also belongs to a degradable environment-friendly paper cup, so that the generation of white pollution can be reduced, and the environment is favorable.
(2) According to the degradable bamboo fiber coffee grounds paper cup and the preparation method thereof, waste coffee grounds are used as raw materials and added into bamboo fiber slurry, so that waste is recycled, and the production cost of the environment-friendly paper cup can be reduced.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the examples given herein without any inventive step, are within the scope of the present invention.
First, preparation example:
example 1:
1.1 starting materials
The coffee bean curd comprises bamboo fiber pulp, coffee grounds and food-grade adhesive, wherein the addition amount of the coffee grounds is 48% of the absolute dry weight of the bamboo fiber pulp; the adding amount of the food-grade adhesive is 0.35 percent of the absolute dry weight of the bamboo fiber pulp;
the bamboo fiber pulp adopts natural color bamboo fiber pulp; the food-grade adhesive adopts 2-hydroxy-3- (trimethylammonio) propyl ether starch chloride;
1.2 preparation method
The method comprises the following steps:
(1) pulping the bamboo fiber pulp until the pulping degree is 30 DEG SR;
(2) grinding the coffee grounds to a particle size of 300 meshes;
(3) mixing the bamboo fiber slurry pulped in the step (1) and the coffee grounds ground in the step (2) according to a ratio, adding a food-grade adhesive for pulp preparation, and uniformly mixing to obtain mixed pulp;
(4) sending the mixed pulp obtained in the step (3) into a paper mold former for pressing to obtain a pressed blank;
(5) drying the pressed blank obtained in the step (4), wherein the drying is carried out for 18s at the temperature of 180 ℃; and drying to obtain the degradable bamboo fiber coffee grounds cup.
Example 2:
2.1 starting materials
The coffee bean curd comprises bamboo fiber pulp, coffee grounds and food-grade adhesive, wherein the addition amount of the coffee grounds is 70% of the absolute dry weight of the bamboo fiber pulp; the adding amount of the food-grade adhesive is 0.5 percent of the absolute dry weight of the bamboo fiber pulp;
the bamboo fiber pulp adopts natural color bamboo fiber pulp; the food-grade adhesive adopts 2-hydroxy-3- (trimethylammonio) propyl ether starch chloride;
2.2 preparation method
The method comprises the following steps:
(1) pulping the bamboo fiber pulp until the pulping degree is 40 DEG SR;
(2) grinding the coffee grounds to a particle size of 200 meshes;
(3) mixing the bamboo fiber slurry pulped in the step (1) and the coffee grounds ground in the step (2) according to a ratio, adding a food-grade adhesive for pulp preparation, and uniformly mixing to obtain mixed pulp;
(4) sending the mixed pulp obtained in the step (3) into a paper mold former for pressing to obtain a pressed blank;
(5) drying the pressed blank obtained in the step (4), wherein the drying is carried out for 20s at the temperature of 150 ℃; and drying to obtain the degradable bamboo fiber coffee grounds cup.
Example 3:
3.1 starting materials
Bamboo fiber pulp, coffee grounds and food-grade adhesive, wherein the addition amount of the coffee grounds is 20% -70% of the absolute dry weight of the bamboo fiber pulp; the adding amount of the food-grade adhesive is 0.2 percent of the absolute dry weight of the bamboo fiber pulp;
the bamboo fiber pulp adopts natural color bamboo fiber pulp; the food-grade adhesive adopts 2-hydroxy-3- (trimethylammonio) propyl ether starch chloride;
3.2 preparation method
The method comprises the following steps:
(1) pulping the bamboo fiber pulp until the pulping degree is 20 DEG SR;
(2) grinding the coffee grounds to a particle size of 400 meshes;
(3) mixing the bamboo fiber slurry pulped in the step (1) and the coffee grounds ground in the step (2) according to a ratio, adding a food-grade adhesive for pulp preparation, and uniformly mixing to obtain mixed pulp;
(4) sending the mixed pulp obtained in the step (3) into a paper mold former for pressing to obtain a pressed blank;
(5) drying the pressed blank obtained in the step (4), wherein the drying is carried out for 15s at the temperature of 220 ℃; and drying to obtain the degradable bamboo fiber coffee grounds cup.
Example 4:
4.1 starting materials
The coffee bean curd comprises bamboo fiber pulp, coffee grounds and food-grade adhesive, wherein the adding amount of the coffee grounds is 55% of the absolute dry weight of the bamboo fiber pulp; the adding amount of the food-grade adhesive is 0.4 percent of the absolute dry weight of the bamboo fiber pulp;
the bamboo fiber pulp adopts bleached bamboo fiber pulp; the food-grade adhesive adopts 2-hydroxy-3- (trimethylammonio) propyl ether starch chloride;
4.2 preparation method
The same as in example 1.
Example 5:
5.1 starting materials
The coffee bean curd comprises bamboo fiber pulp, coffee grounds and food-grade adhesive, wherein the addition amount of the coffee grounds is 35% of the absolute dry weight of the bamboo fiber pulp; the adding amount of the food-grade adhesive is 0.3 percent of the absolute dry weight of the bamboo fiber pulp;
the bamboo fiber pulp adopts bleached bamboo fiber pulp; the food-grade adhesive adopts 2-hydroxy-3- (trimethylammonio) propyl ether starch chloride;
5.2 preparation method
The same as in example 1.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention.
Claims (9)
1. The utility model provides a degradable bamboo fibre coffee grounds paper cup which characterized in that: the raw materials for preparing the coffee bean curd comprise bamboo fiber pulp, coffee grounds and food-grade adhesive, wherein the addition amount of the coffee grounds is 20% -70% of the absolute dry weight of the bamboo fiber pulp; the addition amount of the food-grade adhesive is 0.2-0.5% of the oven-dried weight of the bamboo fiber pulp.
2. The degradable bamboo fiber coffee grounds paper cup according to claim 1, which is characterized in that: the addition amount of the coffee grounds is 35-55% of the oven-dried weight of the bamboo fiber pulp, and the addition amount of the food-grade adhesive is 0.3-0.4% of the oven-dried weight of the bamboo fiber pulp.
3. The degradable bamboo fiber coffee grounds paper cup according to claim 2, which is characterized in that: the addition amount of the coffee grounds is 48% of the oven-dried weight of the bamboo fiber pulp, and the addition amount of the food-grade adhesive is 0.35% of the oven-dried weight of the bamboo fiber pulp.
4. The degradable bamboo fiber coffee grounds paper cup according to claim 1, which is characterized in that: the beating degree of the bamboo fiber slurry is 20-40 SR degrees.
5. The degradable bamboo fiber coffee grounds paper cup according to claim 1, which is characterized in that: the granularity of the coffee grounds is larger than 200 meshes.
6. The degradable bamboo fiber coffee grounds paper cup according to claim 1, which is characterized in that: the bamboo fiber pulp is natural color bamboo fiber pulp or bleached bamboo fiber pulp.
7. The degradable bamboo fiber coffee grounds paper cup according to claim 1, which is characterized in that: the food-grade adhesive is 2-hydroxy-3- (trimethylammonio) propyl ether starch chloride.
8. The preparation method of the degradable bamboo fiber coffee grounds paper cup according to any one of claims 1 to 7, wherein the method comprises the following steps: the method comprises the following steps:
(1) pulping the bamboo fiber pulp until the pulping degree is 20-40 SR degrees;
(2) grinding the coffee grounds to a particle size of greater than 200 mesh;
(3) mixing the bamboo fiber slurry pulped in the step (1) and the coffee grounds ground in the step (2) according to a ratio, adding a food-grade adhesive for pulp preparation, and uniformly mixing to obtain mixed pulp;
(4) sending the mixed pulp obtained in the step (3) into a paper mold former for pressing to obtain a pressed blank;
(5) and (4) drying the pressed blank obtained in the step (4), and obtaining the degradable bamboo fiber coffee grounds paper cup after drying.
9. The preparation method of the degradable bamboo fiber coffee grounds paper cup according to claim 8, which is characterized in that: in the step (5), the drying temperature is 150-220 ℃ and the drying time is 15-20 s.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202110049630.8A CN112759944A (en) | 2021-01-14 | 2021-01-14 | Degradable bamboo fiber coffee grounds paper cup and preparation method thereof |
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| CN202110049630.8A CN112759944A (en) | 2021-01-14 | 2021-01-14 | Degradable bamboo fiber coffee grounds paper cup and preparation method thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113265159A (en) * | 2021-06-08 | 2021-08-17 | 安徽壳氏环保科技有限公司 | Environment-friendly degradable coffee shell fiber stirring rod |
| CN115232365A (en) * | 2022-07-20 | 2022-10-25 | 华南理工大学 | Degradable coffee grounds composite material and preparation method thereof |
| CN116024848A (en) * | 2023-01-30 | 2023-04-28 | 大家智合(北京)网络科技股份有限公司 | Coffee grounds pulp packaging material for packaging coffee and preparation method thereof |
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Application publication date: 20210507 |