Boiled tung oil and preparation method thereof

Abstract

The invention provides boiled tung oil and a preparation method thereof.The boiled tung oil is prepared from, by weight, 30 parts of tung oil, 1 part of soil and 0.1 part of lead oxide.The specific data and operation procedures for boiling the tung oil are provided, the probability of successful boiling of the tung oil is increased, the previous tung oil boiling time is shortened, and the production cost is reduced. The tung oil and the complex hydrocarbon mixture are firstly proportioned according to the proportion of 1: 4 and then proportioned according to the proportion of 1: 2, the tarpaulin umbrella is subjected to oil coating treatment in sequence, the glossiness of the tarpaulin umbrella coated with the tung oil twice is increased, the product quality is improved, and the economic benefits of the tarpaulin umbrella are further improved.

Description

Technical Field

[0001] The invention relates to the technical field of tung oil boiling, and in particular to boiled tung oil and a preparation method thereof. Background Art

[0002] In the traditional oilcloth umbrella making process in my country, it is necessary to apply tung oil on the umbrella surface to make it waterproof, anti-corrosive and increase its aesthetic effect. Therefore, the boiling of tung oil is a core technology in the production of oilcloth umbrellas. The boiling of traditional tung oil requires pouring 30 kilograms of raw tung oil into a large iron pot, and taking a bamboo stick and placing it in the tung oil in the pot for observation and use. Start to burn it over high heat. After about half an hour, when the tung oil foams and the bamboo stick in the tung oil in the pot turns into jujube red, change to medium heat and stir it constantly. After another half an hour, when the tung oil foams and the bamboo stick in the tung oil in the pot turns from jujube red to black, change to low heat and boil it slowly, stirring constantly at this time. After about a quarter of an hour, when the bamboo stick in the pot turns from black to white and the tung oil in the pot turns from thin to thick, change to low heat and boil it slowly, stirring constantly. At this time, the tung oil in the pot can be dipped on the back of a metal knife to test the oil until the test oil can be stretched to two centimeters without breaking, and then remove from the pot and let it cool.

[0003] In the traditional method, there is a lack of scientific data and it relies entirely on experience, which makes it very easy to fail in the boiling process, and it is easy to cause the tung oil to be tender or old, resulting in a low yield. In the process of boiling tung oil, the materials are single and the production process is cumbersome and lengthy. Summary of the invention

[0004] In order to make up for the above shortcomings, the present invention provides a method for boiling tung oil and preparing the same, aiming to improve the existing tung oil boiling process, which lacks scientific data and relies entirely on experience, is very prone to boiling failure, and easily causes the tung oil to be boiled tender or old, thereby resulting in a low yield. In the tung oil boiling process, the materials are single and the production process is cumbersome and lengthy.

[0005] The present invention is achieved in that:

[0006] The present invention provides a method for boiling tung oil, comprising the following raw materials in proportion by weight:

[0007] 30 parts of tung oil,

[0008] 1 part soil,

[0009] 0.1 part of lead oxide.

[0010] Preferably, a method for preparing tung oil comprises the following steps:

[0011] Step 1: Prepare tools: iron pot, stove, thermometer, small bamboo stick, hammer, scale, metal sheet, and tools for holding oil;

[0012] Step 2: Place the soil in the stove and burn it for three minutes to make it burnt soil. Use a hammer to smash the burnt soil into bean-sized pieces.

[0013] Step 3: Put the lead oxide into an iron pan and fry to remove the water, then take out the lead oxide after two minutes;

[0014] Step 4: Pour tung oil into an iron pot, place the small bamboo stick in the tung oil, and heat over high heat for 13-17 minutes until the tung oil reaches 155-165 degrees.

[0015] Step 5: Carefully put the crushed burnt soil into the iron pot, stir it with a small bamboo stick, change the stove's high heat to medium heat, and after the small bamboo stick turns red, use a thermometer to measure the temperature after 2-3 minutes;

[0016] Step 6: When the temperature of the tung oil in the iron pot reaches 220 degrees, add lead oxide and at the same time, change the medium heat on the stove to low heat. At this time, the tung oil in the iron pot will foam. Use a small bamboo stick to stir the tung oil continuously.

[0017] Step 7: When the small bamboo stick turns from red to black, dip it in tung oil and place it on a metal sheet to cool. Use your fingers to test if it can be stretched 0.8-1.2cm. Change the stovetop heat from medium to low to slow.

[0018] Step 8: After 2-3 minutes, the temperature of the tung oil reaches 252 degrees. At this time, annealing is carried out in the stove. Dip a small bamboo stick in the tung oil and place it on the metal sheet to cool. Use your fingers to test and stretch it to 2.5-3.5cm.

[0019] Step 9: Start the stove and let the tung oil cool.

[0020] Preferably, the boiled tung oil and the complex hydrocarbon mixture are mixed in a ratio of 1:4 to prepare the head stock oil.

[0021] Preferably, the boiled tung oil and the complex hydrocarbon mixture are mixed in a ratio of 1:2 to prepare a composite oil.

[0022] The mechanism of action of the present invention:

[0023] The soil is made into burnt soil and then put into tung oil. The burnt soil dissolves in tung oil at high temperature. The burnt soil has strong chemical stability and plays a role in thickening the tung oil after boiling, increasing the viscosity of the tung oil and making the boiled tung oil more solid when applied to the oilcloth umbrella. The raw materials are easy to obtain and the cost is low.

[0024] When heated, lead oxide is reduced to metallic lead by hydrogen, carbon, carbon monoxide, etc. Metallic lead has a silvery metallic luster, which adds gloss to the tung oil and makes the boiled tung oil more beautiful when applied on oilcloth umbrellas.

[0025] The boiled tung oil and complex hydrocarbon mixture are mixed in a ratio of 1:4 to make head oil, which is applied on the oilcloth umbrella. Since the complex hydrocarbon mixture has a large viscosity, the oil spray atomization is excellent, it does not corrode equipment, and has a low carbon residue. The ratio with the boiled tung oil makes the head oil have a larger viscosity. The head oil is used for the first application on the oilcloth umbrella.

[0026] The boiled tung oil and a complex hydrocarbon mixture are mixed in a ratio of 1:2 to make a secondary oil. The secondary oil is applied to the oilcloth umbrella after the first blank oil is applied. Increasing the ratio of tung oil in the secondary oil makes the surface of the oilcloth umbrella more glossy.

[0027] The beneficial effects of the present invention are: 1. This tung oil boiling formula has specific operation data and processes. Compared with the previous tung oil boiling that depends entirely on the operator's experience, this tung oil boiling formula makes tung oil boiling easier to succeed and avoids the waste caused by the previous failure of tung oil boiling.

[0028] 2. The tung oil boiling method and preparation method thereof have added the raw materials and process methods for boiling the oil. In the past, it was necessary to slowly boil the oil over a low fire while observing and controlling the oil temperature. Now, a thermometer is used for monitoring. When the tung oil reaches the specified temperature, the next step can be directly carried out, thus shortening the boiling time of the tung oil.

[0029] 3. During the tung oil boiling process, burnt soil and lead oxide are added to make the boiled tung oil more viscous and glossy. The boiled tung oil is combined with a complex hydrocarbon mixture to apply a second coat to the oilcloth umbrella, which increases the product quality of the oilcloth umbrella while improving the economic benefits of the oilcloth umbrella production. DETAILED DESCRIPTION

[0030] The present invention will be further explained below in conjunction with specific embodiments.

[0031] Example

[0032] The present invention provides a method for boiling tung oil, which comprises the following raw materials in proportion by weight:

[0033] 30 parts of tung oil,

[0034] 1 part soil,

[0035] 0.1 part of lead oxide.

[0036] A method for preparing tung oil comprises the following steps:

[0037] Step 1: Prepare tools: iron pot, stove, thermometer, small bamboo stick, hammer, scale, metal sheet, and tools for holding oil;

[0038] Step 2: Place the soil in the stove and burn it for three minutes to make it burnt soil. Use a hammer to smash the burnt soil into bean-sized pieces.

[0039] Step 3: Put the lead oxide into an iron pan and fry to remove the water, then take out the lead oxide after two minutes;

[0040] Step 4: Pour tung oil into an iron pot, place the small bamboo stick in the tung oil, and heat over high heat for 13-17 minutes until the tung oil reaches 155-165 degrees, preferably 160 degrees;

[0041] Step 5: Carefully put the crushed burnt soil into the iron pot, stir it with a small bamboo stick, change the stove's high heat to medium heat, and after the small bamboo stick turns red, use a thermometer to measure the temperature after 2-3 minutes;

[0042] Step 6: When the temperature of the tung oil in the iron pot reaches 220 degrees, add lead oxide and at the same time, change the medium heat on the stove to low heat. At this time, the tung oil in the iron pot will foam. Use a small bamboo stick to stir the tung oil continuously.

[0043] Step 7: When the small bamboo stick turns from reddish-brown to black, dip the small bamboo stick in tung oil and place it on a metal sheet to cool. Use your fingers to test if it can be stretched to 0.8-1.2cm, preferably 1cm. Change the stovetop heat from medium to low to slow.

[0044] Step 8: After 2-3 minutes, the temperature of the tung oil reaches 252 degrees. At this time, annealing is carried out in the stove. Dip a small bamboo stick in the tung oil and place it on the metal sheet to cool. Use your fingers to test and stretch it to 2.5-3.5cm, preferably 3cm;

[0045] Step 9: Start the stove and let the tung oil cool.

[0046] The tung oil prepared by the above raw materials and preparation method can be used after cooling. The first oil is prepared by mixing the boiled tung oil with a complex hydrocarbon mixture in a ratio of 1:4. The first oil is used as the first oil on the oilcloth umbrella. The second oil is prepared by mixing the boiled tung oil with a complex hydrocarbon mixture in a ratio of 1:2. The second oil is used as the second oil on the oilcloth umbrella. The oilcloth umbrella is coated with two layers of oil, and the oilcloth umbrella has the functions of waterproofing, anti-corrosion and increased aesthetics.

[0047] 1. This kind of tung oil boiling and preparation method has specific operation data and process. Compared with the previous tung oil boiling which depends entirely on the operator's experience, this tung oil boiling formula makes tung oil boiling easier to succeed and avoids the waste caused by the previous failure of tung oil boiling.

[0048] 2. The tung oil boiling method and preparation method thereof have added the raw materials and process methods for boiling the oil. In the past, it was necessary to slowly boil the oil over a low fire while observing and controlling the oil temperature. Now, a thermometer is used for monitoring. When the tung oil reaches the specified temperature, the next step can be directly carried out, thus shortening the boiling time of the tung oil.

[0049] 3. During the tung oil boiling process, burnt soil and lead oxide are added to make the boiled tung oil more viscous and glossy. The boiled tung oil is combined with a complex hydrocarbon mixture to apply a second coat to the oilcloth umbrella, which increases the product quality of the oilcloth umbrella while improving the economic benefits of the oil collection production.

[0050] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A method for boiling tung oil, characterized in that: The invention comprises the following raw materials in proportion by weight: 30 parts of tung oil, 1 part soil, 0.1 part of lead oxide.

2. A method for preparing boiled tung oil according to claim 1, characterized in that: The following steps are involved: Step 1: Prepare tools: iron pot, stove, thermometer, small bamboo stick, hammer, scale, metal sheet, and tools for holding oil; Step 2: Place the soil in the stove and burn it for three minutes to make it burnt soil. Use a hammer to smash the burnt soil into bean-sized pieces. Step 3: Put the lead oxide into an iron pan and fry to remove the water, then take out the lead oxide after two minutes; Step 4: Pour tung oil into an iron pot, place the small bamboo stick in the tung oil, and heat over high heat for 13-17 minutes until the tung oil reaches 155-165 degrees. Step 5: Carefully put the crushed burnt soil into the iron pot, stir it with a small bamboo stick, and change the stove to medium heat. When the small bamboo stick turns red, measure the temperature with a thermometer after 2-3 minutes. Step 6: When the temperature of the tung oil in the iron pot reaches 220 degrees, add lead oxide and at the same time, change the medium heat on the stove to low heat. At this time, the tung oil in the iron pot will foam. Use a small bamboo stick to stir the tung oil continuously. Step 7: When the small bamboo stick turns from red to black, dip it in tung oil and place it on a metal sheet to cool. Use your fingers to test if it can be stretched 0.8-1.2cm. Change the stovetop heat from medium to low. Step 8: After 2-3 minutes, the temperature of the tung oil reaches 252 degrees. At this time, annealing is carried out in the stove. Dip a small bamboo stick in the tung oil and place it on the metal sheet to cool. Use your fingers to test and stretch it to 2.5-3.5cm. Step 9: Start the stove and let the tung oil cool.

3. The method for preparing tung oil according to claim 2, characterized in that: The boiled tung oil and a complex hydrocarbon mixture are mixed in a ratio of 1:4 to prepare the head stock oil.

4. The method for preparing tung oil according to claim 2, characterized in that: The boiled tung oil and a complex hydrocarbon mixture are mixed in a ratio of 1:2 to prepare a compound oil.