JP3040103B1 - Printed matter using ink using recycled vegetable oil - Google Patents

Abstract

An object of the present invention is to provide a means for reducing the cost of a printed material using an ink using vegetable oil and reusing remaining oil used in the production of food and drink. SOLUTION: An ink using an oil obtained by regenerating a vegetable oil is used.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to printed matter such as magazines, books and posters, and more particularly to an ink used for the printed matter, which is an oil obtained by regenerating vegetable oil after use in manufacturing foods and drinks such as tempura. Printed matter, characterized in that it is an ink that has been used.

[0002]

2. Description of the Related Art In recent years, inks using vegetable oil, especially soybean oil, have been used as environmentally friendly. In particular, in the United States, some government laws require that soybean oil-based inks be used. However, especially in Japan, the cost of soybean oil is higher than conventional petroleum solvents, and the amount of ink using soybean oil has not increased.

[0003] On the other hand, oil left to be used in the production of foods and drinks (hereinafter referred to as waste cooking oil) is subjected to a regeneration treatment,
It is reused in the production of feed, as fuel, and processed into soap. However, waste edible oil is increasing year by year and cannot be completely processed.

[0004]

SUMMARY OF THE INVENTION The present invention has been made to solve these problems, and an object of the present invention is to reduce the cost of printed matter using an ink using vegetable oil, and An object of the present invention is to provide a means for reusing remaining oil used for production of food and drink.

[0005]

Means for Solving the Problems The present invention has been made to solve this problem, that is, the invention according to claim 1 uses a vegetable oil which has been regenerated to a water content of 0.3% by weight or less. Characterized by the use of ink
Printed matter using ink using recycled vegetable oil.

[0006]

[0007]

[0008]

[0009]

According to the present invention, by means of this means, impurities that affect the emulsification of the ink, such as salts contained in water, can be removed by removing the water content of the vegetable oil in the regeneration treatment, and the regeneration treatment is inexpensive and easy. Can do
The use of virgin vegetable oils has become cheaper, and it has become possible to obtain printed materials that are even more environmentally friendly in terms of resource recycling.

[0011] According to a second aspect of the invention, the ink had use vegetable oils regenerated treated iodine value of 100 or more
Ink using recycled vegetable oil, characterized by using
This is a printed matter using .

According to the present invention, an iodine value of 10
By performing the regeneration treatment as 0 or more, it is possible to obtain a good drying property when used for ink, and by improving the printing work efficiency, it becomes cheaper than using virgin vegetable oil, and the point of resource reuse It has become possible to obtain printed matter with even more environmental measures.

The invention according to claim 3 uses an ink using an oil obtained by regenerating a vegetable oil having an acid value of 3 or less .
Characterized by the use of an ink that uses regenerated vegetable oil
Printed matter .

According to the present invention, by means of this means, a vegetable oil having an acid value of 3 or less is selected and regenerated, thereby reducing the acid value of the used vegetable oil and suppressing emulsification in an ink. It has become possible to obtain printability, and by using virgin vegetable oil, it becomes cheaper and it is possible to obtain printed matter that is even more environmentally friendly in terms of resource recycling.

[0015]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, the present invention will be described in detail.
Vegetable oils in the present invention include edible soybean oil, rapeseed oil, corn oil, rice oil, cottonseed oil, sesame oil, sunflower oil, safflower oil, olive oil, etc., and non-edible palm oil, coconut oil, linseed oil, and the like. There are palm kernel oil, tung oil and the like, but not limited to these, and any oil that can be regenerated with vegetable oil can be applied.

In the present invention, examples of the vegetable oil used in the production of food and drink include those obtained by collecting vegetable oil used in the production of tempura and the like in restaurants, school lunches, and side dishes. However, the present invention is applicable as long as it can be regenerated with used vegetable oil.

The method for regenerating the vegetable oil in the present invention includes methods such as filtration, precipitation by standing, and decolorization with activated clay, but is not particularly limited thereto, and is applicable.

The ink using vegetable oil in the present invention includes, in particular, lithographic inks, and further includes sheet-fed printing press inks and offset rotary printing press inks, but is not particularly limited thereto. Not applicable.

Examples of the composition of the ink for sheet-fed printing press include 10 to 20% by weight of pigment, 25 to 30% by weight of resin,
Solvent 25-40% by weight, Oil 10-25% by weight, Dryer 0.5-1.5% by weight, Other auxiliaries 0-10% by weight
Configuration. An ink can be obtained by appropriately blending and kneading these with an ordinary method. Vegetable oil can be used as part of this oil and solvent. In particular, it is preferable that the vegetable oil is derived from soybean oil, and that 20% by weight or more of the vegetable oil is soybean oil, because it satisfies the certification standards for soybean oil ink of the American Soybean Association.

As an example of the composition of the ink for an offset rotary printing press, a pigment of 10 to 20% by weight and a resin of 20 to 3% are used.
0% by weight, solvent 25-40% by weight, oil 5-15% by weight,
In addition, a configuration of about 2 to 10% by weight of an auxiliary agent is exemplified.
An ink can be obtained by appropriately blending and kneading these with an ordinary method. Vegetable oil can be used as part of this oil and solvent. In particular, it is preferable that the vegetable oil is derived from soybean oil, and that 7% by weight or more of the vegetable oil is soybean oil, because it satisfies the certification standards for soybean oil ink of the American Soybean Association.

In the present invention, by printing with an ink using vegetable oil, the emission of volatile organic compounds can be reduced as compared with a conventional ink using a petroleum-based solvent. In other words, volatile organic compound dust is less likely to fly to the printing site, improving work efficiency and
It is preferable in terms of worker hygiene. In addition, it leads to prevention of smog and greenhouse phenomenon, and also makes it easy to wash the printing press after work. Other features include fast biodegradability of waste, excellent deinking properties, and easy recycling.

However, many vegetable oils have a problem in cost as compared with petroleum-based solvents, and demand growth is not so good. More recently, there has been a great tendency to shift from sheet-fed printing to web offset printing, which has also reduced the use of vegetable oils. Therefore, the present invention regenerates the vegetable oil used in the production of foods and drinks, and by using this, it becomes cheaper to use virgin vegetable oil, and the printed matter that has been made even more environmentally friendly from the viewpoint of resource reuse is obtained. It is possible to get.

The printed matter according to the present invention includes magazines, weekly magazines, catalogs, pamphlets and the like, but is not limited thereto, and can be used as appropriate.

The method for producing these printed materials is determined by the above-mentioned ink, and offset lithographic printing is suitable. However, the present invention is not particularly limited to this and can be used as appropriate.

In the present invention, it is preferable to carry out regeneration treatment so that the water content of the vegetable oil is 0.3% by weight or less. More preferably 0.1% by weight or less, most preferably 0.0% by weight.
5% by weight or less. If water is contained in such an amount that the water content exceeds 0.3% by weight due to the regeneration treatment, excessive emulsification occurs when the ink is used. Particularly in the case of offset printing, when the ink causes excessive emulsification, the oil-in-water type emulsified material is scattered in the water on the plate surface, so that a so-called floating stain is generated over a wide area or one surface of the non-image area. It will be.

Further, in the case of vegetable oil used for producing food and drink,
Salts and sugars are present as impurities, and the presence of the impurities causes excessive emulsification of the ink. Most of these salts and the like exist in water in an ionic state.

Therefore, in the present invention, by regenerating the vegetable oil so as to have a water content of 0.3% by weight or less as described above, salt and sugar which are impurities as well as water in the oil are removed. It is preferable to prevent excessive emulsification of the ink and improve printability.

As a method for regenerating the vegetable oil so that the water content of the vegetable oil is 0.3% by weight or less, a method of allowing the vegetable oil to stand still, precipitating the water with other impurities, and collecting the supernatant is possible. The present invention is not limited to this, and other methods can be applied.

In the present invention, the vegetable oil has an iodine value of 10
It is preferable that the reproduction process is performed so as to be 0 or more. It is more preferably at least 110, most preferably at least 120. If the iodine value is lower than 100, the drying property of the ink becomes inferior. In particular, when drying by an oxidative polymerization reaction such as offset sheet-fed printing, it takes time to dry before printing on the back side. In addition, the printing operation efficiency is greatly reduced.

Particularly in the case of vegetable oils used in the production of foods and drinks,
Animal oils are present as impurities due to meat juices of meats and fishes, and due to the presence of these oils, the inks become even less dry.

Therefore, in the present invention, animal oil is removed from the oil by regenerating the vegetable oil so as to have an iodine value of 100 or more as described above, and the drying property of the ink is made appropriate. It is preferable to improve work efficiency.

As a method for regenerating the vegetable oil so that the iodine value of the vegetable oil becomes 100 or more, the animal oil alone is allowed to stand, and then cooled to some extent to solidify only the animal oil due to the difference in its freezing point, and to precipitate together with other impurities. This is possible by taking the supernatant. In particular, this method is a preferable method because it can be carried out by the same method as the method of regenerating so that the water content becomes 0.3% by weight or less, but is not particularly limited thereto, and other methods are used. However, it is applicable.

In the present invention, it is preferable to use a vegetable oil which has an acid value of 3 or less before regeneration and is subjected to a regeneration treatment. It is more preferably 2 or less, and most preferably 1.5 or less. If the acid value is higher than 3, emulsification will proceed excessively when the ink is made from free fatty acids.

In particular, many vegetable oils used in the production of foods and drinks have been subjected to a heat treatment, such as tempura oil, resulting in a high acid value.

Therefore, in the present invention, as described above, the vegetable oil having an acid value of 3 or less before the regeneration is selected and subjected to a regeneration treatment to reduce the number of free fatty acids in the vegetable oil after the regeneration. It is preferable to prevent excessive emulsification in the above case and to improve printability.

As a method for selecting and regenerating a vegetable oil having an acid value of 3 or less before the regeneration, the acid value varies depending on the use condition of the vegetable oil. The acid value is measured every time, and the acid value at that time is 3
It is possible by selecting the following items.

[0037]

EXAMPLES <Example 1: Moisture content> Unused soybean oil (1)
And a waste cooking oil (2) recovered from a side dish shop that mainly uses this soybean oil, and a recycled oil (3) that is filtered, allowed to stand outdoors for 24 hours, and then the supernatant is removed and decolorized with activated clay. And prepared.

When the water content was measured, (1)
Was 0% by weight, (2) was 10% by weight, and (3) was 0.1% by weight. When inks were prepared using these as oil components, no particular problem was observed in (1) and (3), but in (2) the pigment components were separated by the influence of moisture, and the ink was ready to be used as ink. Is gone.

<Example 2: Iodine value> The iodine value of the oil of Example 1 was 130 for (1), 90 for (2), and 12 for (3).
It was 0. Hereinafter, the iodine value was adjusted to 10 by adjusting the regeneration process.
Prepare 0, 110, 120 and the oil of (1),
Inks were made from these. With these inks,
One-sided printing was performed by a four-color lithographic sheet-fed printing machine, and after leaving for 12 hours, 24 hours, and 36 hours, back printing was performed with the same ink, and the printability of each was evaluated. The results are shown below.

[0040]

[Table 1]

As described above, when the iodine value was 100 or more, the dried state was good after leaving for 36 hours, and back printing was possible.

<Example 3: Acid value> The acid value of the oil of Example 1 was 0 for (1) and 2.5 for (2) and (3). The following oil (1) was prepared by heat treatment to have an acid value of 1, 2, 4 and was printed by a four-color offset rotary printing press “Risopia” manufactured by Mitsubishi Heavy Industries, Ltd. The fountain solution dial was adjusted to 50, 60, and 75 to adjust the emulsification, and the plate surface stains at that time were compared. Here, the dampening solution dial is for adjusting the number of rotations of the dampening solution roller of the printing press.
The number is up to 0, and the greater the number of dials, the greater the amount of dampening water. The results are shown below.

[0043]

[Table 2]

As shown above, when the acid value was 4, even when the fountain solution dial was set to 50, some stains occurred and printing suitability was not obtained.

[0045]

As described above, according to the first aspect of the present invention, the printed matter using the ink using the regenerated vegetable oil of the present invention is printed by using the ink using the vegetable oil. Emission of volatile organic compounds can be reduced as compared to conventional inks using petroleum solvents. That is, the dust of the volatile organic compound is less likely to fly to the printing site, thereby improving work efficiency and preventing smog and greenhouse phenomenon. In addition, the printing press after the operation can be easily cleaned. Other features include fast biodegradability of waste, excellent deinking properties, and easy recycling. In particular, by using an ink that uses recycled vegetable oil, raw material costs are lower than using virgin vegetable oil, and it is possible to obtain printed materials that are even more environmentally friendly in terms of resource reuse. This has the effect of becoming

Further, by using the ink using the recycled cooking oil, the current material cost is lower than using virgin vegetable oil, and further environmental measures are taken in terms of resource recycling. It became possible to obtain printed matter. Further, by using the ink obtained by regenerating the waste cooking oil, it is possible to reuse the waste cooking oil which is increasing year by year.

Further, by removing the water content of the vegetable oil in the regeneration treatment, it is possible to reduce the salt content and the sugar content contained in the water content.
Impurities that affect the emulsification of the ink can be removed, and the recycling process can be performed easily and inexpensively, so it is cheaper than using virgin vegetable oil, and further environmental measures are taken in terms of resource reuse. This produces an effect that it is possible to obtain a printed matter.

According to the second aspect of the present invention, when the iodine value is set to 100 or more and the regenerating process is performed, it is possible to obtain a good drying property when using the ink, and to improve the printing work efficiency. The use of virgin vegetable oil is cheaper, and there is an effect that it is possible to obtain a printed matter with further environmental measures from the viewpoint of resource recycling.

According to the third aspect of the invention, the vegetable oil having an acid value of 3 or less is selected and regenerated to reduce the acid value of the regenerated vegetable oil to be used and to suppress the emulsification when used as an ink. And by obtaining printability,
The use of virgin vegetable oil is cheaper, and there is an effect that it is possible to obtain a printed matter with further environmental measures in terms of resource recycling.

Continuation of the front page (56) References JP-A-7-18289 (JP, A) JP-A-9-100431 (JP, A) Table 6-6-501967 (JP, A) (58) Fields surveyed (Int .Cl. ⁷ , DB name) C09D 11/00-11/20 C11B 13/00

Claims (4)

(57) [Claims] 1. A printed matter using an ink using a regenerated vegetable oil, characterized by using an ink using a regenerated vegetable oil having a water content of 0.3% by weight or less. 2. A printed material using an ink using a regenerated vegetable oil, characterized by using an ink using a regenerated vegetable oil with an iodine value of 100 or more. 3. A printed material using an ink using a regenerated vegetable oil, characterized by using an ink using an oil obtained by regenerating a vegetable oil having an acid value of 3 or less. 4. An ink using a regenerated vegetable oil having an iodine value of 100 or more and / or a regenerated vegetable oil having an acid value of 3 or less.
Printed matter using an ink using the regenerated vegetable oil described in the above.