CN113146788A - Production process of water-milled carbonized bamboo summer sleeping mat - Google Patents
Production process of water-milled carbonized bamboo summer sleeping mat Download PDFInfo
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- CN113146788A CN113146788A CN202110499792.1A CN202110499792A CN113146788A CN 113146788 A CN113146788 A CN 113146788A CN 202110499792 A CN202110499792 A CN 202110499792A CN 113146788 A CN113146788 A CN 113146788A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27M—WORKING OF WOOD NOT PROVIDED FOR IN SUBCLASSES B27B - B27L; MANUFACTURE OF SPECIFIC WOODEN ARTICLES
- B27M3/00—Manufacture or reconditioning of specific semi-finished or finished articles
- B27M3/24—Manufacture or reconditioning of specific semi-finished or finished articles of household utensils, e.g. spoons, clothes hangers, clothes pegs
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27J—MECHANICAL WORKING OF CANE, CORK, OR SIMILAR MATERIALS
- B27J1/00—Mechanical working of cane or the like
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27K—PROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
- B27K3/00—Impregnating wood, e.g. impregnation pretreatment, for example puncturing; Wood impregnation aids not directly involved in the impregnation process
- B27K3/02—Processes; Apparatus
- B27K3/08—Impregnating by pressure, e.g. vacuum impregnation
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27K—PROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
- B27K3/00—Impregnating wood, e.g. impregnation pretreatment, for example puncturing; Wood impregnation aids not directly involved in the impregnation process
- B27K3/16—Inorganic impregnating agents
- B27K3/20—Compounds of alkali metals or ammonium
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27K—PROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
- B27K3/00—Impregnating wood, e.g. impregnation pretreatment, for example puncturing; Wood impregnation aids not directly involved in the impregnation process
- B27K3/34—Organic impregnating agents
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27K—PROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
- B27K3/00—Impregnating wood, e.g. impregnation pretreatment, for example puncturing; Wood impregnation aids not directly involved in the impregnation process
- B27K3/34—Organic impregnating agents
- B27K3/36—Aliphatic compounds
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27K—PROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
- B27K3/00—Impregnating wood, e.g. impregnation pretreatment, for example puncturing; Wood impregnation aids not directly involved in the impregnation process
- B27K3/52—Impregnating agents containing mixtures of inorganic and organic compounds
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27K—PROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
- B27K9/00—Chemical or physical treatment of reed, straw, or similar material
- B27K9/002—Cane, bamboo
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27M—WORKING OF WOOD NOT PROVIDED FOR IN SUBCLASSES B27B - B27L; MANUFACTURE OF SPECIFIC WOODEN ARTICLES
- B27M1/00—Working of wood not provided for in subclasses B27B - B27L, e.g. by stretching
- B27M1/06—Working of wood not provided for in subclasses B27B - B27L, e.g. by stretching by burning or charring, e.g. cutting with hot wire
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27M—WORKING OF WOOD NOT PROVIDED FOR IN SUBCLASSES B27B - B27L; MANUFACTURE OF SPECIFIC WOODEN ARTICLES
- B27M1/00—Working of wood not provided for in subclasses B27B - B27L, e.g. by stretching
- B27M1/08—Working of wood not provided for in subclasses B27B - B27L, e.g. by stretching by multi-step processes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27K—PROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
- B27K2240/00—Purpose of the treatment
- B27K2240/20—Removing fungi, molds or insects
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Abstract
The invention discloses a production process of a water-milled carbonized bamboo mat, and relates to the technical field of bamboo mat processing. The invention discloses a preparation process of a water-milled carbonized bamboo mat, which comprises the steps of preparing bamboo skin strips, drying, baking, burning, dipping, cleaning, polishing and weaving and covering yarns, wherein the dipping process comprises the steps of cleaning the bamboo skin strips after burning, placing the bamboo skin strips in a water mill for water milling, taking out the bamboo skin strips for draining, placing the bamboo skin strips in a dipping tank containing a modification liquid for dipping, placing the dipped bamboo skin strips in a constant temperature furnace for heat preservation, wherein the modification liquid is composed of sodium borate, N-acyl glutamate, triethanolamine, a piper nigrum leaf extracting solution, a mugwort extracting solution and other raw materials. The water-milled carbonized bamboo mat provided by the invention has the advantages of simple preparation method, easiness in operation, readily available raw materials, lower cost, antibacterial and mosquito-repelling effect, long lasting time effect of antibacterial and mosquito-repelling, high strength and toughness, difficulty in brittle failure and long service life.
Description
Technical Field
The invention belongs to the technical field of bamboo summer sleeping mat processing, and particularly relates to a water-milled carbonized bamboo summer sleeping mat and a production process thereof.
Background
In summer, the summer sleeping mat is an essential bedding for people, along with the improvement of living standard, the requirement of people on the summer sleeping mat is higher and higher, and the bamboo summer sleeping mat is smooth in texture and cool due to the fact that chemical processing is not needed in the manufacturing process, and is particularly popular with people. The main types of bamboo summer sleeping mat are: water bamboo mat, mahjong mat, bamboo strip mat, bamboo filament mat, rattan mat and double-faced mat. The bamboo strip mat on the market is popular with consumers, and is woven by thin bamboo strips like a water bamboo mat, so that people can sleep on the bamboo strip mat more softly and comfortably, and the bamboo strip mat has good heat dissipation and sweat absorption performance, and is cooler when sleeping. The bamboo blocks of the mahjong summer sleeping mat are thick, hard to sleep on the mat and uncomfortable, and the longer the mat is used, the bamboo blocks are easy to squeeze together, so that the mat has larger pores, and people are easy to clamp when sleeping on the mat, and the comfort is poor.
The bamboo strip mat on the market at present is processed into the bamboo strips, and the steps such as boiling, drying, grinding, polishing, weaving are processed to form, because it adopts the bamboo strips to weave and forms, the bamboo strips are thinner, and through carbonizing in the course of working, have reduced organic matter and sugar in the bamboo strips, toughness is not as good as unprocessed bamboo strips, if it is improper to use or the live time is longer, easy brittle failure (especially there is the place of bamboo joint or there is the place of braided wire), then easy hair clamping, influence comfort level and life. In the prior art, the toughness and the strength of the bamboo summer sleeping mat are mainly increased by covering yarns on the bamboo summer sleeping mat, so that the bamboo skin strips are not easy to scatter in the long-term use process of the bamboo summer sleeping mat, but after the bamboo summer sleeping mat is used for a long time, the bamboo skin strips and the covering yarns are loose, so that the bamboo skin strips are easily brittle and broken, the comfort degree is affected, and people are easily injured.
The bamboo mat has the advantages that the bamboo mat is high in use frequency and long in contact time with human skin, bacteria are easy to breed in high-temperature summer, and more mosquitoes exist in summer to influence the health and sleep quality of people, so that the bamboo mat with the special effects of resisting bacteria and expelling insects is more and more favored by consumers. At present, the bamboo summer sleeping mat in China is mainly made to have the antibacterial and mosquito repellent effects by soaking the antibacterial agent or the mosquito repellent agent in the preparation process of the bamboo summer sleeping mat, but most of the existing antibacterial agents or mosquito repellent agents are synthesized, so that certain environmental protection and safety problems can be caused, the timeliness is not long, and the antibacterial and mosquito repellent effects are lost after the bamboo summer sleeping mat is used for a period of time. The invention Chinese patent CN105996619A discloses an anti-mite antibacterial bamboo mat and a production process thereof, which is prepared by weaving a blank mat surface after performing wire drawing, soaking, high-temperature and high-pressure steam carbonization, sanding and polishing on moso bamboos, and then performing cloth pressing treatment.
Disclosure of Invention
The invention aims to provide the water-milled carbonized bamboo mat which has the advantages of simple preparation method, easy operation, easily obtained raw materials, low cost, antibacterial and mosquito-repellent effect, long lasting time effect of antibacterial and mosquito-repellent effect, high strength and toughness, difficult brittle failure and long service life.
In order to realize the aim of the invention, the invention provides a production process of a water-milled carbonized bamboo mat, which comprises the following specific steps:
(1) preparing bamboo strips: selecting at least 6 years old winter bamboo, and processing the bamboo into thin bamboo strips.
(2) And (3) drying: and (3) grinding the bamboo skin strips with water to remove green, dehydrating, and controlling the water content of the bamboo skin strips to be below 12%.
(3) Baking and carbonizing: placing the bamboo splits into a high-pressure carbonization furnace for carbon burning treatment, wherein the carbon burning treatment process comprises the following steps: the first step, the temperature of a high-pressure carbonization furnace is 120-150 ℃, the pressure is set to be 1.5-3 MPa, and the carbonization time is 50-80 min; secondly, setting the temperature of a high-pressure carbonization furnace to be 230-250 ℃, setting the pressure to be 2.0-3.5 MPa, and setting the carbonization time to be 1-2 h; and thirdly, setting the temperature of the high-pressure carbonization furnace to be 300-320 ℃, setting the pressure to be 4-5 MPa, and setting the carbonization time to be 30 min.
(4) Dipping treatment: cleaning the bamboo strips after the carbon burning, placing the bamboo strips in a water mill for water milling for 30min, taking out, and draining; and then placing the thin bamboo strips into a dipping tank containing a modification liquid for dipping at the dipping temperature of 50-60 ℃ under the dipping pressure of 2-3 MPa for 3-5 h, taking out, then placing in a constant temperature furnace at the temperature of 80-90 ℃ and keeping the temperature for 1-2 h.
(5) Cleaning and polishing: cleaning the soaked and constant-temperature bamboo strips, placing the bamboo strips in a water mill for water milling for 1h, then placing the bamboo strips in 2% light salt water for soaking for 30min, taking out the bamboo strips, cleaning, drying, controlling the water content of the bamboo strips to be below 9%, and then polishing the bamboo strips.
(6) Weaving covering yarn: weaving bamboo strips into a bamboo mat blank, applying an environment-friendly adhesive on one surface of the bamboo mat blank, sticking gauze, placing the bamboo mat blank into a hot press, carrying out hot press lamination, and finally carrying out edge covering treatment by using cotton or fiber cloth to prepare the water-milled carbonized bamboo mat.
Further, in the step (6), the temperature of the hot press is 120-160 ℃, the hot pressing pressure is 3-5 MPa, and the hot pressing time is 10-15 s.
Further, the environment-friendly adhesive in the step (6) is one of a vinyl acetate adhesive, a polyethylene adhesive, a polyamide adhesive or a phosphate adhesive.
Further, the modifying solution in the step (4) is composed of the following raw materials in parts by weight: 10-20 parts of sodium borate, 10-15 parts of N-acyl glutamate, 15-20 parts of triethanolamine, 3-5 parts of a piper nigrum leaf extracting solution, 3-5 parts of a mugwort extracting solution, 80-100 parts of polyethylene glycol and 500-1000 parts of water.
Further, the preparation method of the modifying solution comprises the following steps: placing sodium borate, N-acyl glutamate and triethanolamine in a reaction kettle, stirring at 50 ℃ for 0.5-1 h, cooling to room temperature, adding polyethylene glycol, stirring for 2h, adding the extract of piper nigrum leaf and the extract of mugwort, stirring for 30min, adding water, and stirring uniformly to obtain the modified solution.
Further, the preparation method of the piper nigrum leaf extracting solution comprises the following steps: cleaning Piper nigrum leaf, oven drying, pulverizing, sieving with 40-60 mesh sieve, extracting with 50% petroleum ether at 60 deg.C with feed liquid mass ratio of 1:8 under reflux for 4 hr, repeatedly extracting the residue for 3 times, filtering the filtrate to remove coarse impurities, and removing petroleum ether by rotary evaporation to obtain Piper nigrum leaf extract.
The invention achieves the following beneficial effects:
1. the bamboo splits are baked at high temperature in a high-pressure carbonization furnace, so that organic matters such as starch, protein and the like in the bamboo splits are decomposed at high temperature, harmful substances such as worm eggs, fungi and the like in the bamboo splits are killed, and the effects of preventing mildew and moth are achieved; under the technical operation of fine temperature and pressure control, most of the bamboo oil in the bamboo strips can seep out and cover the surfaces of the bamboo strips, so that the bamboo strips have good glossiness and transparency, are environment-friendly and healthy, are repeatedly carbonized at high temperature and high pressure, can be correspondingly reduced, have compact internal structure, and correspondingly improve the toughness of the bamboo strips, so that the bamboo strips have strong sweat absorption and excellent heat dissipation performance; the bamboo skin strip after carbonization can select suitable carbonization time according to the required appearance color of the bamboo skin strip, and the carbonized particle layer can make bacteria not easy to survive, further reaching the antibacterial action.
2. According to the invention, sodium borate, N-acyl glutamate and the like are used as raw materials, and are fully mixed with water under the action of polyethylene glycol and triethanolamine to prepare a modification liquid, the bamboo skin strips are soaked in the modification liquid under the action of pressurization and heating, and the components of the modification liquid are filled into cell walls and cell cavities of bamboo, so that the components of the modification liquid interact with bamboo oil remained in the bamboo to form strong interface acting force, so that compact bamboo skin strips are prepared, the mechanical strength and toughness of the bamboo skin strips are further improved, the bamboo skin strips are not easy to break, and the service life of the bamboo summer sleeping mat is prolonged; the components of the modification liquid react with each other, so that a strong acting force can be formed between the modification liquid and a bamboo substrate, and the toughness of the bamboo mat is improved; the sodium borate component is added into the modifying solution, so that the inflammability of the bamboo mat is reduced, and the flame retardant effect of the bamboo mat is improved.
3. The modified liquid of the invention is added with the extract of the piper nigrum leaves, adopts petroleum ether as an extracting agent and adopts a specific method, thereby effectively improving the effective division in the piper nigrum leaves. The main components of the piper nigrum leaf extract are lipids, hydrocarbons and alcohols, and the piper nigrum leaf extract also comprises methyl cinnamate, limonene, menthol, citronellal, terpineol and other components, so that the piper nigrum leaf extract has excellent insect expelling, insect killing and antibacterial activities, can form better interface binding force with the residual components and matrixes in the bamboo splints, and can stably exist in the bamboo mat without easily losing, so that the bamboo mat has excellent antibacterial and insect expelling effects, and is long in lasting time of antibacterial mosquito expelling.
4. The modification liquid is added with the mugwort extract, and the effective components in the mugwort extract have wide biological activity, insecticidal activity and bacteriostatic activity, can be effectively combined with the bamboo substrate and are not easy to escape, so that the bamboo mat has excellent antibacterial and insect-expelling effects.
5. The modified liquid is composed of organic salt and organic matter, has excellent hydrophilicity, improves the heat dissipation and sweat absorption of the bamboo mat when the bamboo mat is used, and enables people to sleep comfortably and cool, but the natural water resistance of the bamboo and the organic components in the modified liquid are filled in the channels of the cell walls of the bamboo, so that the bamboo is easy to air dry after absorbing moisture, the moldy surface or the bamboo becomes brittle and easy to break due to more moisture content are avoided, and the service life of the bamboo mat is prolonged.
6. The bamboo summer sleeping mat is soaked in 2% of light salt water in the cleaning and polishing processes, so that the internal components in the bamboo split strips can be further stabilized, the components cannot easily escape in the use process of the bamboo summer sleeping mat, and the service life of the bamboo summer sleeping mat is further prolonged.
7. The invention adopts multiple water grinding treatments, so that the double surfaces of the bamboo strips can be used, the bamboo strips are smooth and have no thorns, the utilization rate of the bamboo strips is improved, and the rejection rate of the surface treatment of the bamboo strips is reduced. The preparation process of the bamboo mat disclosed by the invention adopts the environment-friendly adhesive to bond with the gauze, so that no harmful gas escapes in the use process of the bamboo mat, and the bamboo mat is environment-friendly and healthy.
8. In the production process of the water-milled carbonized bamboo mat, the bamboo strips are impregnated by the modified liquid, so that the prepared bamboo mat has excellent mechanical strength and toughness, is not easy to brittle failure, comfortable, cool and long in service life, has an antibacterial and mosquito-repellent effect, and is long in antibacterial and mosquito-repellent aging. The invention has simple production process, easy operation, industrial production, easily obtained raw materials, lower cost and good economic value and social value.
Detailed Description
The technical solutions in the embodiments of the present invention are clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all 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 preparation method of the piper nigrum leaf extracting solution related in the embodiment of the invention comprises the following steps: cleaning Piper nigrum leaves, drying, crushing, sieving with a 40-60-mesh sieve, extracting with 50% petroleum ether at 60 ℃ with the feed liquid mass ratio of 1:8 under reflux for 4h, repeatedly extracting filter residues for 3 times under the above conditions, filtering the filtrate to remove coarse impurities, and removing the petroleum ether through rotary evaporation to obtain the Piper nigrum extract. But not limited to, the preparation method of the piper nigrum leaf extracting solution provided by the invention.
The preparation method of the mugwort extract related in the embodiment of the invention comprises the following steps: cleaning folium Artemisiae Argyi dry grass, oven drying, pulverizing, sieving with 40-60 mesh sieve, wrapping folium Artemisiae Argyi powder with gauze, placing into Soxhlet extractor, adding anhydrous ethanol as extractive solution at material-to-liquid ratio of 1:50(g/mL), heating and extracting in 80 deg.C water bath until the extractive solution no longer changes color, taking out folium Artemisiae Argyi bag, weighing above folium Artemisiae Argyi powder, adding into the extractor, extracting until the extractive solution no longer changes color, repeating the extraction for 3 times, vacuum filtering the extractive solution to remove coarse impurities, distilling with rotary evaporator until all solvents are evaporated to dryness to obtain folium Artemisiae Argyi extractive solution. But not limited to, the preparation method of the mugwort extract provided by the invention.
The antibacterial and anti-mosquito bamboo mat and the preparation process thereof of the present invention will be described with reference to the specific examples.
Example 1
A production process of a water-milled carbonized bamboo summer sleeping mat comprises the following specific steps:
(1) preparing bamboo strips: selecting at least 6 years old winter bamboo, and processing the bamboo into thin bamboo strips.
(2) And (3) drying: and (3) grinding the bamboo skin strips with water to remove green, dehydrating, and controlling the water content of the bamboo skin strips to be below 12%.
(3) Baking and carbonizing: placing the bamboo splits into a high-pressure carbonization furnace for carbon burning treatment, wherein the carbon burning treatment process comprises the following steps: the first step, the temperature of a high-pressure carbonization furnace is 120 ℃, the pressure is set to be 3MPa, and the carbonization time is 60 min; secondly, setting the temperature of a high-pressure carbonization furnace at 250 ℃, setting the pressure at 2.0MPa and setting the carbonization time at 1.5 h; and thirdly, setting the temperature of the high-pressure carbonization furnace to be 300 ℃, setting the pressure to be 5MPa and setting the carbonization time to be 30 min.
(4) Dipping treatment: cleaning the bamboo strips after the carbon burning, placing the bamboo strips in a water mill for water milling for 30min, taking out, and draining; and then placing the bamboo skin strips into a dipping tank containing a modification liquid for dipping at the dipping temperature of 60 ℃ under the dipping pressure of 2MPa for 5h, taking out the bamboo skin strips, then placing the bamboo skin strips into a constant temperature furnace at the temperature of 90 ℃ and preserving heat for 1 h. The preparation method of the modified liquid comprises the following steps: putting 1kg of sodium borate, 1.5kg of N-acyl glutamate and 1.8kg of triethanolamine into a reaction kettle, stirring for 1h at 50 ℃, cooling to room temperature, then adding 9kg of polyethylene glycol, stirring for 2h, then adding 300g of a piper nigrum leaf extracting solution and 500g of a mugwort extracting solution, stirring for 30min, finally adding 100kg of water, and uniformly stirring to obtain a modified solution.
(5) Cleaning and polishing: cleaning the soaked and constant-temperature bamboo strips, placing the bamboo strips in a water mill for water milling for 1h, then placing the bamboo strips in 2% light salt water for soaking for 30min, taking out the bamboo strips, cleaning, drying, controlling the water content of the bamboo strips to be below 9%, and then polishing the bamboo strips.
(6) Weaving covering yarn: weaving bamboo strips into a bamboo mat blank, applying a vinyl acetate adhesive on one surface of the bamboo mat blank, sticking gauze, placing the bamboo mat blank into a hot press, pressing the bamboo mat blank by the hot press, wherein the temperature of the hot press is 120-160 ℃, the hot pressing pressure is 3-5 MPa, and the hot pressing time is 10-15 s, and finally performing edge covering treatment by using cotton or fiber cloth to prepare the water-milled carbonized bamboo mat.
Example 2
A production process of a water-milled carbonized bamboo summer sleeping mat comprises the following specific steps:
(1) the preparation and drying steps of the bamboo split strips are the same as those in example 1, and the specific reference is made to example 1.
(2) Baking and carbonizing: placing the bamboo splits into a high-pressure carbonization furnace for carbon burning treatment, wherein the carbon burning treatment process comprises the following steps: the first step, the temperature of a high-pressure carbonization furnace is 150 ℃, the pressure is set to be 1.5MPa, and the carbonization time is 80 min; secondly, setting the temperature of a high-pressure carbonization furnace at 230 ℃, setting the pressure at 3.5MPa and the carbonization time at 1 h; and thirdly, setting the temperature of the high-pressure carbonization furnace to be 320 ℃, the pressure to be 4MPa and the carbonization time to be 30 min.
(3) Dipping treatment: cleaning the bamboo strips after the carbon burning, placing the bamboo strips in a water mill for water milling for 30min, taking out, and draining; and then placing the bamboo skin strips into a dipping tank containing a modification liquid for dipping at the dipping temperature of 60 ℃ under the dipping pressure of 3MPa for 3h, taking out the bamboo skin strips, then placing the bamboo skin strips into a constant temperature furnace at the temperature of 90 ℃ and preserving heat for 1 h. The preparation method of the modified liquid comprises the following steps: placing 2kg of sodium borate, 1kg of N-acyl glutamate and 1.5kg of triethanolamine in a reaction kettle, stirring for 1h at 50 ℃, cooling to room temperature, then adding 10kg of polyethylene glycol, stirring for 2h, then adding 500g of the extract of the piper nigrum leaves and 300g of the extract of the artemisia argyi, stirring for 30min, finally adding 80kg of water, and stirring uniformly to obtain the modified solution.
(4) The steps of cleaning, polishing and weaving the covering yarn are the same as those in example 1, and the water-milled carbonized bamboo mat is prepared by specifically referring to example 1.
Example 3
A production process of a water-milled carbonized bamboo summer sleeping mat comprises the following specific steps:
(1) the preparation and drying steps of the bamboo split strips are the same as those in example 1, and the specific reference is made to example 1.
(2) Baking and carbonizing: placing the bamboo splits into a high-pressure carbonization furnace for carbon burning treatment, wherein the carbon burning treatment process comprises the following steps: the first step, the temperature of a high-pressure carbonization furnace is 140 ℃, the pressure is set to be 3MPa, and the carbonization time is 50 min; secondly, setting the temperature of a high-pressure carbonization furnace at 240 ℃, setting the pressure at 3MPa and setting the carbonization time at 2 h; and thirdly, setting the temperature of the high-pressure carbonization furnace to be 315 ℃, the pressure to be 5MPa and the carbonization time to be 30 min.
(3) Dipping treatment: cleaning the bamboo strips after the carbon burning, placing the bamboo strips in a water mill for water milling for 30min, taking out, and draining; and then placing the bamboo skin strips into a dipping tank containing a modification liquid for dipping at the dipping temperature of 50 ℃, under the dipping pressure of 2MPa for 5h, taking out, then placing in a constant temperature furnace at the temperature of 90 ℃ and preserving heat for 1 h. The preparation method of the modified liquid comprises the following steps: placing 1.5kg of sodium borate, 1.5kg of N-acyl glutamate and 2.0kg of triethanolamine in a reaction kettle, stirring for 1h at 50 ℃, cooling to room temperature, then adding 8kg of polyethylene glycol, stirring for 2h, then adding 400g of the extract of the piper nigrum leaves and 400g of the extract of the artemisia argyi, stirring for 30min, finally adding 70kg of water, and stirring uniformly to obtain the modified solution.
(4) The steps of cleaning, polishing and weaving the covering yarn are the same as those in example 1, and the water-milled carbonized bamboo mat is prepared by specifically referring to example 1.
Example 4
A production process of a water-milled carbonized bamboo summer sleeping mat comprises the following specific steps:
(1) the preparation and drying steps of the bamboo split strips are the same as those in example 1, and the specific reference is made to example 1.
(2) Baking and carbonizing: placing the bamboo splits into a high-pressure carbonization furnace for carbon burning treatment, wherein the carbon burning treatment process comprises the following steps: the first step, the temperature of a high-pressure carbonization furnace is 135 ℃, the pressure is set to be 2.5MPa, and the carbonization time is 75 min; secondly, setting the temperature of a high-pressure carbonization furnace at 230 ℃, setting the pressure at 3.2MPa and the carbonization time at 1 h; and thirdly, setting the temperature of the high-pressure carbonization furnace to be 310 ℃, the pressure to be 4MPa and the carbonization time to be 30 min.
(3) Dipping treatment: cleaning the bamboo strips after the carbon burning, placing the bamboo strips in a water mill for water milling for 30min, taking out, and draining; and then placing the bamboo skin strips into a dipping tank containing a modification liquid for dipping at the dipping temperature of 60 ℃, under the dipping pressure of 3MPa for 4 hours, taking out, then placing in a constant temperature furnace at the temperature of 90 ℃, and preserving heat for 1 hour. The preparation method of the modified liquid comprises the following steps: putting 1.8kg of sodium borate, 1.2kg of N-acyl glutamate and 1.8kg of triethanolamine into a reaction kettle, stirring for 1h at 50 ℃, cooling to room temperature, then adding 9kg of polyethylene glycol, stirring for 2h, then adding 450g of the extract of the piper nigrum leaves and 380g of the extract of the artemisia argyi, stirring for 30min, finally adding 50kg of water, and stirring uniformly to obtain the modified solution.
(4) The steps of cleaning, polishing and weaving the covering yarn are the same as those in example 1, and the water-milled carbonized bamboo mat is prepared by specifically referring to example 1.
It should be noted that the environment-friendly adhesive in the invention may be one of a polyethylene adhesive, a polyamide adhesive or a phosphate adhesive in addition to a vinyl acetate adhesive, and the environment-friendly adhesive provided above is not limited.
Comparative example 1
The production process of the water-milled carbonized bamboo summer sleeping mat in the comparative example comprises the following specific steps:
(1) the preparation and drying steps of the bamboo split strips are the same as those in example 1, and the specific reference is made to example 1.
(2) Baking and carbonizing: and (3) placing the bamboo splits strips in a high-pressure carbonization furnace for carbonization treatment, wherein the temperature of the high-pressure carbonization furnace is 230 ℃, the carbonization time is 3h, and the pressure is 4 MPa.
(3) Cleaning the bamboo strips, grinding in a water mill for 30min, taking out, and draining.
(4) The steps of cleaning, polishing and weaving the covering yarn are the same as those in example 1, and the water-milled carbonized bamboo mat is prepared by specifically referring to example 1.
Comparative example 2
The production process of the water-milled carbonized bamboo summer sleeping mat in the comparative example comprises the following specific steps:
(1) the preparation and drying steps of the bamboo split strips are the same as those in example 1, and the specific reference is made to example 1.
(2) Baking and carbonizing: placing the bamboo splits into a high-pressure carbonization furnace for carbon burning treatment, wherein the carbon burning treatment process comprises the following steps: the first step, the temperature of a high-pressure carbonization furnace is 135 ℃, the pressure is set to be 2.5MPa, and the carbonization time is 75 min; secondly, setting the temperature of a high-pressure carbonization furnace at 230 ℃, setting the pressure at 3.2MPa and the carbonization time at 1 h; and thirdly, setting the temperature of the high-pressure carbonization furnace to be 310 ℃, the pressure to be 4MPa and the carbonization time to be 30 min.
(3) Cleaning the bamboo strips, grinding in a water mill for 30min, taking out, and draining.
(4) The steps of cleaning, polishing and weaving the covering yarn are the same as those in example 1, and the water-milled carbonized bamboo mat is prepared by specifically referring to example 1.
Comparative example 3
The production process of the water-milled carbonized bamboo mat in the comparative example is the same as that of example 4, except that sodium borate, N-acyl glutamate and triethanolamine are not added to the modification solution of the comparative example 3, and other components and steps are the same as those of example 4.
Comparative example 4
The production process of the water-milled carbonized bamboo mat in the comparative example is the same as that of example 4, except that the modified solution of the comparative example 4 is not added with the extract of piper nigrum leaves and the extract of mugwort, and other components and steps are the same as those of example 4.
The mechanical property test of the bamboo strips prepared by cleaning and polishing in the above examples 1 to 4 and comparative examples 1 to 4 was performed, samples were cut out from the bamboo strips, the size of the bending-resistant sample was 160mm × 10mm × 8mm, the size of the air-dried density and the compression-resistant sample was 30mm × 30mm × 10mm, 3 samples were selected for each group, and the average value was obtained, and then the mechanical property test results are as shown in table 1 below.
Table 1 table of mechanical property test results of bamboo skin strips
| Bending strength (MPa) | Compressive strength (MPa) | Flexural modulus (GPa) | Air-dried Density (g/cm3) | |
| Example 1 | 133.1 | 19.1 | 11.8 | 0.81 |
| Example 2 | 142.9 | 20.9 | 12.5 | 0.84 |
| Example 3 | 136.5 | 19.4 | 12.1 | 0.83 |
| Example 4 | 148.6 | 22.5 | 13.1 | 0.86 |
| Comparative example 1 | 114.3 | 18.5 | 8.9 | 0.59 |
| Comparative example 2 | 120.2 | 19.3 | 9.7 | 0.68 |
| Comparative example 3 | 134.6 | 19.5 | 11.6 | 0.82 |
| Comparative example 4 | 136.1 | 18.9 | 11.4 | 0.78 |
As can be seen from the test results of table 1, the bamboo mat of the present invention has high density, high strength and excellent toughness. The processing technology of the bamboo mat adopts three-stage carbonization treatment, so that the strength and the toughness of the bamboo mat can be obviously improved; in the processing technology of the bamboo summer sleeping mat, the carbonized bamboo strips are subjected to dipping treatment, so that the density, strength and toughness of the bamboo summer sleeping mat are improved, and the bamboo summer sleeping mat is not easy to brittle fracture, soft, comfortable and cool in the use process; the sodium borate, the N-acyl glutamate and the triethanolamine are used in the modifying liquid to fill the inner cell cavities of the bamboo summer sleeping mat, so that the sodium borate, the N-acyl glutamate and the triethanolamine can be fully combined with the components in the bamboo summer sleeping mat, are not easy to escape, improve the strength and the toughness of the bamboo summer sleeping mat, are not easy to break, and prolong the service life of the bamboo summer sleeping mat.
The antibacterial performance and mosquito repellent performance tests of the above examples 1 to 4 and comparative examples 1 to 4 were carried out, and the test results are shown in table 2 below.
TABLE 2 Table of comparative test results of antibacterial and mosquito repellent properties of bamboo mat
As can be seen from the detection results in Table 2, the bamboo mat of the present invention has excellent antibacterial and mosquito repellent effects. In the processing technology of the bamboo summer sleeping mat, the carbonized bamboo strips are subjected to dipping treatment, so that the antibacterial and mosquito-repellent effects of the bamboo summer sleeping mat are obviously improved, and the mosquito-repellent time effect is prolonged; according to the invention, the sodium borate, the N-acyl glutamate and the triethanolamine are added into the modification liquid, so that the binding force between the components of the modification liquid and bamboo is improved, the components of the modification liquid are not easy to escape, the antibacterial mosquito-repellent effect is prolonged, and the antibacterial mosquito-repellent effect of the bamboo mat is also improved to a certain extent; the modified liquid of the invention is added with the extract of the piper nigrum leaves and the extract of the artemisia argyi, thus obviously improving the antibacterial and mosquito-repellent effects of the bamboo mat.
The technical features of the embodiments described above can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention.
Claims (6)
1. A production process of a water-milled carbonized bamboo summer sleeping mat is characterized by comprising the following specific steps:
(1) preparing bamboo strips: selecting at least over 6 years old winter bamboo, and then processing the bamboo into bamboo strips:
(2) and (3) drying: grinding the bamboo strips with water to remove green, dehydrating, and controlling the water content of the bamboo strips to be below 12%;
(3) baking and carbonizing: placing the bamboo splits into a high-pressure carbonization furnace for carbon burning treatment, wherein the carbon burning treatment process comprises the following steps: the first step, the temperature of a high-pressure carbonization furnace is 120-150 ℃, the pressure is set to be 1.5-3 MPa, and the carbonization time is 50-80 min; secondly, setting the temperature of a high-pressure carbonization furnace to be 230-250 ℃, setting the pressure to be 2.0-3.5 MPa, and setting the carbonization time to be 1-2 h; thirdly, setting the temperature of the high-pressure carbonization furnace to be 300-320 ℃, setting the pressure to be 4-5 MPa, and setting the carbonization time to be 30 min;
(4) dipping treatment: cleaning the bamboo strips after the carbon burning, placing the bamboo strips in a water mill for water milling for 30min, taking out, and draining; then placing the thin bamboo strips into a dipping tank containing a modification liquid for dipping at the dipping temperature of 50-60 ℃ under the dipping pressure of 2-3 MPa for 3-5 h, taking out, then placing in a constant temperature furnace at the temperature of 80-90 ℃ and keeping the temperature for 1-2 h;
(5) cleaning and polishing: cleaning the soaked and constant-temperature bamboo strips, then placing the bamboo strips in a water mill for water milling for 1h, then placing the bamboo strips in 2% light salt water for soaking for 30min, taking out the bamboo strips, cleaning, drying, controlling the water content of the bamboo strips to be below 9%, and then polishing the bamboo strips;
(6) weaving covering yarn: weaving bamboo strips into a bamboo mat blank, applying an environment-friendly adhesive on one surface of the bamboo mat blank, sticking gauze, placing the bamboo mat blank into a hot press, carrying out hot press lamination, and finally carrying out edge covering treatment by using cotton or fiber cloth to prepare the water-milled carbonized bamboo mat.
2. The production process of the water-milled carbonized bamboo mat according to claim 1, wherein the temperature of the hot press in the step (6) is 120-160 ℃, the hot pressing pressure is 3-5 MPa, and the hot pressing time is 10-15 s.
3. The production process of the water-milled carbonized bamboo mat as claimed in claim 1, wherein the environment-friendly adhesive in the step (6) is one of a vinyl acetate adhesive, a polyethylene adhesive, a polyamide adhesive or a phosphate adhesive.
4. The production process of the water-milled carbonized bamboo mat as claimed in claim 1, wherein the modifying solution in the step (4) is composed of the following raw materials in parts by weight: 10-20 parts of sodium borate, 10-15 parts of N-acyl glutamate, 15-20 parts of triethanolamine, 3-5 parts of a piper nigrum leaf extracting solution, 3-5 parts of a mugwort extracting solution, 80-100 parts of polyethylene glycol and 500-1000 parts of water.
5. The production process of the water-milled carbonized bamboo mat as claimed in claim 4, wherein the preparation method of the modifying solution comprises the following steps: placing sodium borate, N-acyl glutamate and triethanolamine in a reaction kettle, stirring at 50 ℃ for 0.5-1 h, cooling to room temperature, adding polyethylene glycol, stirring for 2h, adding the extract of piper nigrum leaf and the extract of mugwort, stirring for 30min, adding water, and stirring uniformly to obtain the modified solution.
6. The production process of the water-milled carbonized bamboo mat as claimed in claim 4, wherein the preparation method of the piper nigrum leaf extract comprises the following steps: cleaning Piper nigrum leaf, oven drying, pulverizing, sieving with 40-60 mesh sieve, extracting with 50% petroleum ether at 60 deg.C with feed liquid mass ratio of 1:8 under reflux for 4 hr, repeatedly extracting the residue for 3 times, filtering the filtrate to remove coarse impurities, and removing petroleum ether by rotary evaporation to obtain Piper nigrum leaf extract.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN116038845A (en) * | 2023-02-07 | 2023-05-02 | 罗国冬 | Mahjong summer sleeping mat seed piece capable of repelling mosquitoes and preparation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN116038845A (en) * | 2023-02-07 | 2023-05-02 | 罗国冬 | Mahjong summer sleeping mat seed piece capable of repelling mosquitoes and preparation method thereof |
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