JP2673141B2 - Inner surface treatment method for continuous thin film tube - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for treating the inner surface of a continuous synthetic resin thin film tube, and more particularly to a method for continuously chemically treating the inner surface of the synthetic resin thin film tube in order to improve its adhesion. is there.

[0002]

2. Description of the Related Art In a copying machine, a printer, or the like, a fixing pressure roller used for heating and fixing toner is one in which a surface of an elastic roller main body is covered with a synthetic resin thin film tube. . As described above, when the synthetic resin thin film tube is coated, the inner surface of the tube is treated with a chemical treatment agent in order to improve the adhesiveness to the elastic roller body.

In this case, conventionally, the tube was cut into a certain length, the chemical treating agent was passed through the tube in a batch system, and then the tube was immersed in a large amount of alcohol and water for cleaning.
For this reason, there are many difficulties such as poor workability and uneven processing, and it takes a lot of labor and time to process one tube. Furthermore, since the chemical treatment agent deteriorates due to contact with air to generate exudates and stain the product, or even scratches on the surface, dry inert gas is injected into the tube to expel air. , Processing is also performed.

[0004]

However, in order to inject the dry inert gas, a complicated apparatus must be used in combination, which makes the workability very bad and increases the product processing time. However, there are many problems such as scratches caused by handling the product.

An object of the present invention is to solve the above-mentioned conventional problems, to provide a method for continuously treating a thin film tube, which has good workability, does not require time and labor, and can perform a uniform treatment continuously. To provide.

[0006]

As a result of intensive studies to achieve the above object, the inventors of the present invention have established a plurality of treatment zones formed between pinch rolls in series and arranged in the first treatment zone . Then, the chemical treatment agent is sealed in the continuous synthetic resin thin film tube , and the cleaning agent is kept in the tube after the second treatment zone.
By enclosing it in the tube and running the tube while restraining the movement of the chemical treatment agent and the cleaning agent with pinch roll,
The present invention has been completed by finding that it is possible to easily and continuously perform the inner surface treatment of a tube.

That is, according to the present invention, (1) a plurality of treatment zones formed between pinch rolls are connected in series, and in the first treatment zone , a chemical treatment agent is introduced into a continuous synthetic resin thin film tube. Encapsulate and put the cleaning agent in the tube after the second treatment zone.
A method for treating the inner surface of a continuous continuous thin film tube, which comprises enclosing and treating the inner surface of the tube while running the tube .

[0008]

In the method of the present invention , a plurality of treatment zones formed between the pinch rolls are connected in series, and the chemical treatment agent is enclosed in the continuous synthetic resin thin film tube in the first treatment zone , Detergent in the tube after the second treatment zone
Since the inner surface of the tube is treated while being enclosed and running the tube, the chemical treatment agent and the detergent enclosed in the tube are restrained from moving by the pinch rolls so that they are within the treatment zone. Only the tube stays running. Therefore, once chemical treatment and cleaning
The inclusion of the agent in the continuous tube, briefly, Chu
The process from chemical treatment to cleaning of the inner surface of the blade is performed continuously at once.
The workability is greatly improved. In addition, by controlling the rotation speed of the pinch roll, it is possible to adjust the running speed of the continuous tube, so that the processing time can be adjusted according to the tube size, material, type of processing agent and cleaning agent , concentration, etc. It can be controlled appropriately.
Furthermore, since the chemical treatment agent is enclosed in the tube for processing, the chemical treatment agent does not come into contact with the air and deteriorates, so that the problem of the solid substance breaking out does not occur.

[0009]

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in more detail with reference to the drawings.

FIG. 1 is a schematic side view showing an example of an apparatus used to carry out the method of the present invention, 1 is an untreated tube feed reel, 2 is a continuous synthetic resin thin film tube, 3,
4, 9 are pinch rolls, 5 is the first treatment zone formed between the pinch rolls 3, 4, 6 is a chemical treatment agent enclosed in the continuous synthetic resin thin film tube 2, and 7 is a chemical treatment agent 6 or a washing agent.
A roll group 8 for holding the thin film tube 2 in which the cleaning agent 11 is enclosed, and a processing tube take-up reel 8. 10 is a pin
The second processing zone 11 formed between the trolley rolls 4 and 9 is
A cleaning agent enclosed in the continuous synthetic resin thin film tube 2.
In addition, the third formed between the pinch rolls 12 and 13
Formed between the processing zone 14 and the pinch rolls 13 and 15
Formed between the fourth processing zone 16 and the pinch rolls 17 and 18.
Between the fifth processing zone 19 and the pinch rolls 18 and 20
The sixth processing zone 21 formed in the above is continuously provided.

[0012]

[0013]

When carrying out the method of the present invention using this apparatus, first, the continuous synthetic resin thin film tube 2 taken out from the untreated tube reel 1 is passed through the pinch roll 3, and then the tube 2 is chemically treated. Enclose the treatment agent. After that, the tube 2 is passed through the pinch roll 4, and the tube 2
The cleaning agent 11 is enclosed inside. Then, the tube 2 is passed through the pinch roll 9, and after repeating the same operation,
It is wound around the processing tube take-up reel 8. Note that 7 is
A roll group for holding the tube 2 in which the chemical treatment agent 6 or the cleaning agent 11 is enclosed. When the pinch rolls 3, 4, 9, 12, 13, 15, 17, 18, 20 are rotationally driven at a constant speed in this state, the chemical treatment agent 6 is restrained from moving by the pinch rolls 3 and 4. It stays within one processing band 5. Further, the cleaning agent 11 enclosed in the tube 2 includes pinch rolls 4, 9 and pinch rolls 12, 1.
3, pinch rolls 13, 15, pinch rolls 17, 18
And the movement is restricted by the pinch rolls 18 and 20,
It remains in each subsequent processing zone 10, 16, 14, 19, 21. On the other hand, the tube 2 runs and is wound up on the processing tube winding reel 8. As a result, the inner surface of the tube 2 is continuously treated with the chemical treatment agent 6 and then continuously washed with the detergent 11. The number of processing zones after the second processing zone can be arbitrarily increased or decreased as necessary, and the type of the cleaning agent 11 can be arbitrarily changed in each processing zone.

Examples of the resin constituting the continuous synthetic resin thin film tube 2 used in the method of the present invention include vinyl chloride resin, synthetic rubber, silicone rubber and fluororesin. In particular, fluororesins such as tetrafluoroethylene-hexafluoropropylene copolymer (FEP resin), tetrafluoroethylene-perfluoroalkyl vinyl ether copolymer (PFA resin), ethylene-tetrafluoroethylene copolymer (ETFE resin) It is preferably used. The thickness of the tube 2 is
0.01-1.0 mm, especially 0.03-0.10 mm
Is preferred. In addition, the inner diameter of the tube is 0.3 to
500 mm is suitable.

The chemical treatment agent 6 used in the method of the present invention may be, for example, a sodium metal complex solution used for improving the adhesiveness of the fluororesin thin film tube.

Further, as the cleaning agent used in the method of the present invention, alcohols such as ethyl alcohol and methyl alcohol which also have a reaction stopping action, water, and volatile solvents such as acetone and ether which also have a drying promoting effect. Can be mentioned. When the fluororesin thin film tube is treated with the sodium metal complex solution,
Alcohol cleaning in treatment zone 4 followed by 2-3
It is preferable to perform water washing in the zone 1 and acetone washing in the last zones 1 and 2.

The treatment of the method of the present invention can be continuously carried out until the treatment effect of the chemical treatment agent 6 or the cleaning effect of the detergent 11 deteriorates.

The number, length, processing time (traveling speed of the tube 2) of the processing zone with the chemical treating agent 6 and the treating zone with the cleaning agent 11 in the method of the present invention, the size of the tube 2, the material, the chemical treating agent 6 and the like. , And can be arbitrarily changed according to the type of the cleaning agent 11.

[0020]

According to the method of the present invention, workability is good,
It is possible to perform a uniform and uniform inner surface treatment of the thin film tube without time and labor.

[Brief description of the drawings]

1 is a schematic side view showing an example of an apparatus for carrying out the method of the present invention.

[Explanation of symbols]

2 Continuous synthetic resin thin film tube 3, 4, 9, 12, 13, 15, 17, 18, 20 Pinch roll 5, 10, 14, 16, 19, 21 Treatment zone 6 Chemical treatment agent 11 Cleaning agent

 ─────────────────────────────────────────────────── ─── Continuation of the front page (56) Reference JP-A-2-191641 (JP, A) JP-A-1-98641 (JP, A) JP-A-2-147638 (JP, A)

Claims (3)

(57) [Claims] The processing zone according to claim 1] is formed between the pinch rolls
Multiple units are installed in series , and the chemical treatment agent is sealed in the continuous synthetic resin thin film tube in the first treatment zone, and after the second treatment zone.
A method for treating the inner surface of a continuous thin-film tube , wherein a cleaning agent is enclosed in the tube and the inner surface of the tube is treated while the tube is running. 2. The synthetic resin thin film tube is made of fluorine resin.
It is a thin oil film tube, and the chemical treatment agent is metallic sodium.
And a cleaning agent in the second treatment zone and thereafter.
The method for treating the inner surface of a continuous thin film tube according to claim 1, wherein the treatment is performed in the order of alcohol and water . 3. The synthetic resin thin film tube is a fluororesin thin film tube, the chemical treatment agent is a metal sodium complex solution, and alcohol, water, and acetone are sequentially used as cleaning agents in the second treatment zone and thereafter. The method for treating the inner surface of a continuous thin film tube according to claim 1, wherein