JPH06295025A - Washing method for slender light shielding member - Google Patents

Abstract

PURPOSE:To provide the washing method capable of sufficiently washing a slender light shielding member woven by using colored yarns down to the roots of piles. CONSTITUTION:The slender light shielding member 15 transferred to a first washing tank 11 is blown with compressed air from air nozzles 25 in a softening liquid 22 in this tank. Bubbles are generated by blowing of the compressed air and the slender light shielding member 15 is split down to the roots of the piles 15a by these bubbles. The slender light shielding member 15 is thereafter transported to a second washing tank 12. A soaping liquid 26 is circulated by a blow-off nozzle 27, a suction nozzle 28 and a pump 30 in this washing tank 12. The slender light shielding member 15 is passed in this soaping liquid 26, by which the soaping agent is penetrated down to the roots of the piles 15a of the slender light shielding member 15 and, therefore, the excess dyes, resins, etc., sticking to the piles at the time of dyeing are sufficiently removed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for cleaning a narrow width light-shielding member which is attached to the entrance and exit of a photographic film of a cartridge body for light shielding.

[0002]

2. Description of the Related Art As is well known, the main body of a photographic film cartridge is provided with a photographic film entrance and exit for taking in and out the photographic film, and a light-shielding member called a teremp is provided on the upper and lower inner wall surfaces. ing. The light-shielding member prevents the photographic film in the cartridge body from being exposed to light.

As such a light-shielding member, a pile material is woven into a woven material having a flexible material so that the front and back surfaces of the photographic film are not damaged when the photographic film is taken in and out from the entrance and exit of the photographic film. The pile fabric formed in 1 is widely used. To weave this pile fabric, weaving it broadly like cloth for clothes and then cutting it to the width attached to the photo film entrance and exit, and weaving with the width attached to the photo film entrance from the beginning There is.

Recently, there are no pile chips,
The latter method has been adopted because of the advantages such as the fact that the ears can be provided so that the base cloth does not fray at the edges. In addition, as a production method of such a narrow light-shielding member for shading, there are a dyeing method in which weaving is performed by using black yarn dyed in black in advance and a dyeing method in which weaving is performed and then dyed in black.

The dyeing method is, for example, Jitsuko Sho 37-2.
As described in Japanese Patent No. 1388, there is known a method of using an acetate thread prepared by melting a black pigment out of a liquid as a warp thread and a weft thread of a pile thread or a base cloth.
Further, the applicant of the present application, in Japanese Patent Application No. 4-33040, has a lower cost production method in which all the yarns forming the teremp cloth are pre-dyed, and the pile yarn and the base yarn are made of different materials. Is proposed.

[0006]

By the way, the dyed narrow width light-shielding member needs to be washed in order to remove excess dye, resin and other surface deposits adhering to the fiber surface, so-called soaping is required. Becomes However, in the above-mentioned dyeing method, it is possible to continuously perform weaving and washing, and it is easy to automate. On the other hand, it is difficult to sufficiently wash the pile root at the time of washing. There was a drawback that On the other hand, in the post-dyeing method, after weaving, dyeing and washing are performed in a high temperature liquid for at least 60 minutes or more, so that the pile is sufficiently opened and the root is sufficiently washed. On the other hand, there is an advantage that it becomes better, but when dyeing a cloth woven in a narrow width, it is necessary to make the narrow light-shielding member into a drip shape, and it is necessary to unravel the drape after dyeing the drape. These operations are disadvantageous in terms of cost because automation is difficult and labor is required.

The present invention has been made to solve the above problems, and a cleaning method capable of efficiently and sufficiently cleaning the narrow width light-shielding member woven using dyed yarn (pre-dyed yarn) up to the root of the pile. The purpose is to provide.

[0008]

In order to achieve the above object, the method for cleaning a narrow light-shielding member of the present invention is to open the light-shielding member to the root of the pile by pre-cleaning, and then in the next cleaning tank. The cleaning solution mixed with a cleaning agent is circulated to clean the pile roots. In the pre-cleaning, compressed air is blown to the light-shielding member in the liquid of the pre-cleaning tank, and the light-shielding member is opened up to the root of the pile by bubbles generated at this time.

[0009]

[Function] The narrow light-shielding member transferred to the preliminary cleaning tank is
Compressed air can be blown in this liquid. The blowing of the compressed air creates bubbles, and the bubbles open the light shielding member to the root of the pile. After that, the light shielding member is conveyed to the next cleaning tank and passed through the cleaning liquid circulated therein.
As a result, the light-shielding member is sufficiently permeated with the cleaning liquid up to the root of the pile, so that the excess dye, resin, etc. attached at the time of dyeing is sufficiently removed.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS In FIG. 1 showing a cleaning apparatus embodying the present invention, this cleaning apparatus comprises four cleaning tanks 11-14,
The narrow light-shielding member 15 is passed through the liquid in each tank in a loop shape by the transport reel 16 and the submerged reel 17. The narrow-width light-shielding member 15 is a pile woven fabric narrowly woven with a yarn dyed, and is cut into a predetermined length after washing and drying,
Photo film A photo film of Patrone is attached as a light-shielding member to the entrance and exit of the film.

The conveying speed of the narrow light-shielding member 15 is preferably low in order to sufficiently open the pile, but
Since the productivity is deteriorated, the time is 1 m / min at the latest, for example, 4 m / min in this embodiment, and the total time for passing through the first cleaning tank 11 and the second cleaning tank 12 is about 1 minute. The in-liquid reel 17 is, as shown in FIG.
The portion of the narrow light-shielding member 15 that comes into contact with the tip of the pile is composed of, for example, six round bars 18 so that the pile is not crushed. The round bar 18 is supported by the shaft 20 by a plurality of thin columns 19 so that the in-liquid reel 17 can be smoothly rotated in the liquid.

In the first cleaning tank 11, a softening agent 22 containing 2 g / l of a softening agent, for example, Wet Softer K-60 (manufactured by One Company) is stored. In the vicinity of the bottom of the cleaning tank 11, for example, a plurality of electric heating heaters 23 are provided, and the softening liquid 22 is heated to 40 ° C. or higher and lower than 98 ° C., for example, 70 ° C. in this embodiment. Further, one air nozzle 25 as shown in FIG. 3 is provided inside each narrow width light shielding member 15 in a loop shape. The air nozzle 25 has a large number of holes 25a (for example, 1.5 mm).
φ) is formed, and compressed air is blown from here toward the pile surface of the narrow light-shielding member 15. The compressed air causes bubbles in the soft liquid 22, and the bubbles are blown to the pile surface of the narrow light-shielding member 15, so that the narrow light-shielding member 15 is opened to the root of the pile.

In the second cleaning tank 12, a soaping agent,
For example, Sunmall BK20L (manufactured by Nika Kagaku) is 2 g / l
The mixed soaping liquid 26 is stored. Cleaning tank 1
A blowing nozzle 27 and a suction nozzle 28 having a shape as shown in FIG. 4 are arranged at the upper diagonal corner and the diagonal lower corner of 2.
A pump 30 for circulating the soaping liquid 26 is provided between them. In addition, the hole 27 of the blowing nozzle 27
Both a and the hole of the suction nozzle 28 are, for example, 2 mmφ. A plurality of heaters 23 are provided in the vicinity of the bottom of the cleaning tank 12 as in the first cleaning tank 11, and the soaping liquid 26 is heated to 40 ° C. or higher and lower than 98 ° C., for example, 85 ° C. .

The third cleaning tank 13 contains, for example, water 31 at 20 ° C., and the narrow light-shielding member 15 washed with the high-temperature soaping liquid 26 is washed while being rapidly cooled. The temperature of the water 31 is kept at 30 ° C. or lower, preferably 25 ° C. or lower.

The last cleaning tank 14 contains an antistatic liquid 33. The antistatic liquid 33 is, for example, 5 g / l of DAITORON N (manufactured by Nichika Kagaku Co., Ltd.) mixed in water, and the liquid temperature is preferably 5 ° C. to 40 ° C. In the case of the present embodiment, it is kept at 20 ° C., for example. There is. The squeezing roller 35 arranged at the outlet of the cleaning tank 14 controls the amount of the antistatic liquid 33 attached to the narrow light-shielding member 15 with a squeezing rate of 200%. The squeezing rate is a rate represented by “(cloth weight per unit area after squeezing) / (weight per unit area of dry cloth) × 100”. Further, a drive roller 36 is paired with the squeezing roller 35, which controls the entire conveying speed. Further, the rotations of the transport reel 16 and the submerged reel 17 are also controlled so that excessive tension is not applied to the narrow light shielding member 15. Below the squeezing roller 35, a tray 37 for receiving the excess antistatic liquid 33 squeezed by the squeezing roller 35 is provided.

A drying device (not shown) is provided downstream of the squeezing roller 35 to dry the narrow light-shielding member 15 which has been washed. Below this, a storage case 38 for storing the dried narrow width light shielding member 15 is provided.

The operation of the cleaning apparatus thus configured will be described. First, as a pretreatment, the back surface of the base cloth of the narrow light shielding member 15 is brought into contact with a heating drum at about 200 ° C. for about 2 seconds.
As a result, the pile 15a is firmly fixed to the base cloth of the narrow light-shielding member 15, and the narrow light-shielding member 15 is washed during cleaning.
The pile 15a will not fall out of the base cloth.
By performing this heat treatment at the same time as shirring,
The process can be rationalized and the cutting accuracy of shirring can be improved.

The narrow light-shielding member 15 after the pretreatment is
Cleaning tank 1 so that the pile 15a side is inside each loop
It is carried in 1. While the narrow light-shielding member 15 is passed through the soft liquid 22 kept at about 70 ° C., the pile 15a of the narrow light-shielding member 15 is softened by the action of the softening agent, and the narrow light-shielding member 15 moves inside the loop. Air nozzle 2 provided
Compressed air is blown from 5. The compressed air causes bubbles in the soft liquid 22, and the bubbles sufficiently open the pile 15a of the narrow light-shielding member 15 to the root.

After that, the narrow light-shielding member 15 is sent to the second cleaning tank 12 by the transport reel 16. Cleaning tank 1
The cleaning liquid 26 of No. 2 is sucked into the suction nozzle 28 by the pump 30.
Since it is sucked in from and blown out into the cleaning tank 12 from the blowout nozzle 27, it constantly circulates in the cleaning tank 12. Since the narrow width light-shielding member 15 is sufficiently opened in the first cleaning tank 11, the cleaning liquid 26 is sufficiently penetrated to the root of the pile 15a, and the dye adhered to the thread of the narrow width light-shielding member 15, Resin and other surface deposits are removed.

The narrow light-shielding member 15 sent to the third cleaning tank 13 is cooled and washed with water 31 at about 20 ° C., and the cleaning liquid 26 is removed. Further, the narrow width light shielding member 15 is sent to the fourth cleaning tank 14 and passed through the antistatic liquid 33. The pile 15a is apt to have static due to friction with the photographic film, but the static is prevented by the action of the antistatic agent. Cleaning tank 14
After passing through the narrow light-shielding member 15 after the excess antistatic liquid 33 is removed by the squeezing roller 35 and dried,
It is stored in the storage case 38.

In the embodiments described above, Wet Softer K-60 (manufactured by One Hand Co., Ltd.) was used as the softening agent, but the following can also be used. Artron N
(Daiwa Kagaku), Artron NC (Daiwa Kagaku), Antikulistan PE (Nippon Dyeing), Antikulistan PG (Nippon Dyeing), Win Super 300 (Kotan Kagaku), Wetter A (Osaka Chemical), Wetter EN ( Osaka Chemical), Wetter A-450 (Osaka Chemical), Wet Softer AS (one company), Wet Softer 180
C (one company), Wet Softer EC-16 (one company), Orizolin 662Y (Toho Kagaku), Kinkleys HRN (Meisei Kagaku), Korsmin SWG-7 (Sanyo Kagaku), Sofer F15 (Nippon Dyeing), Sofcon L -1
(Tokai Oil), Sofcon M-100 (Tokai Oil), Sofcon U-3 (Tokai Oil), Soft Oil NL (Nissei Kasei), Soft Oil A-25 (Hiramatsu Yuka), Soft Oil NL (Hiramatsu Yuka) ), Sofmin SW5 (Miyoshi fats and oils),
Parasoftener WET-8 (Ohara), Breviol PAM
(Henkel White Water), Petit Nurse 1000 (Kao), Bestol A (Asahi Yushi), Bevinar 504 (Maruhishi Yuka),
Penesofter N65 (Satoda Kako), Portex DH1
0 (Toho Kagaku), Portex SF-40 (Toho Kagaku), Portex SAM-322 (Toho Kagaku), Portex SAN-25 (Toho Kagaku), Polysofter VB
(Nichika), Yusilon AR555 (Yushiro), Yusilon SP1000 (Yushiro), Racset IWN (Rakuto Kasei), Ruston EL (Meisei Kagaku), Lanozole 804N
(Takamatsu oil and fat), lanozole 801, TA (Takamatsu oil and fat),
Ranosol M-7 (Takamatsu Oil and Fat), Ranol A-320
(Nissin Chemical), Ramisoft BS20 (Daiichi Kogyo), Ramisoft BS40 (Daiichi Kogyo).

As a soaping agent, Sanmor BK
Although 20 L (manufactured by Nichika Kagaku) was used, the following can also be used. Adekanol TS-800 Conc (Asahi Denka), Artlin A-132 (Kyoeisha), Enchiron C
A-40 (Rakuto Kasei), Quinthorpe TK (Kotan Kagaku), Quinthorpe WT (Kotan Kagaku), Grand Up AX-08 (Sanyo Kasei), Shintor N (Nissei Kasei),
Super Soires (Heian oil and fat), Soiles TY (Heian oil and fat), Soiles KS (Heian oil and fat), Soper NF (Morin), Soper NFC (Morin), Soljin SP
(Nissei Kasei), Soljin SD (Nissei Kasei), Dyanol 330 (Daiichi Kogyo), T-Pole B-81 (Daiichi Kogyo), Tripol RC (Daiichi Kogyo), New Soap K-7 (Sun) New chemistry), New soap K-7S (Nissin chemistry), New soap K-9 (Nisshin chemistry), New soap BS-10 (Nisshin chemistry), New soap DF2
(Nisshin Chemical Co., Ltd.), Monogen 170T (Daiichi Kogyo), Monogen SS (Daiichi Kogyo), Monogen 2NT (Daiichi Kogyo), Hofnar No. 579-S (Heian Yushi), Lacole ST
A (Meisei Chemical), Lipotol BN (Nichika Chemical), Sunmor FL-30 (Nika Chemical), Sunmor BK20F
(Nichika).

When a sizing agent is used for improving the weavability of the yarn-dyed yarn, the desizing agent from pages 217 to 224 of "Dyeing Note [18th Edition]", Dyeing Company (1989), A desizing aid can be appropriately selected and used. As the antistatic agent, DAISTRON N (manufactured by Nichika Kagaku Co., Ltd.) was used, but various antistatic agents described in JP-A-62-286042 can be used depending on the type of fiber.

Although the productivity is deteriorated when the conveying speed of the narrow light-shielding member is reduced, it is preferable that the liquid passage time is long in order to sufficiently open the narrow light-shielding member. The passage time in the liquid may be lengthened by devising such as increasing the number of loops of the width-shaped light shielding member. In this case, the bubbles of the softening liquid and the circulating liquid flow of the soaping liquid hit the pile surface of the narrow light-shielding member. Further, although an electric heating type heater is used as a means for warming the liquid, other than this, for example, a pipe through which heating steam is passed may be used. Although compressed air was used in this embodiment as a method of preliminary cleaning, a brush roller may be installed in the liquid or ultrasonic vibration may be applied.

Further, the cleaning method of the present invention is described in, for example, a light-shielding telempe for 135 cartridges and a light-shielding telempe for various photographic film magazines, and, for example, US Pat. No. 4,834,306 and US Pat. No. 4,846,418. In addition, the present invention can be applied to a light-shielding telempe of a photo film cartridge in which the photo film is sent out from the photo film entrance / exit by rotating the spool.

[0026]

As described above, according to the method for cleaning the narrow light-shielding member of the present invention, after the fibers are opened to the root of the pile by the preliminary cleaning, the soaping liquid is circulated in the next cleaning tank. Since the cleaning is performed, even the dyeing method can sufficiently wash the pile roots, and the light-shielding property becomes equivalent to that of the post-dying method. Moreover, since continuous processing is possible, the productivity of the light shielding member is improved.

[Brief description of drawings]

FIG. 1 is a schematic view showing a cleaning apparatus embodying the present invention.

FIG. 2 is a perspective view showing an in-liquid reel according to the device shown in FIG.

FIG. 3 is a perspective view showing an air nozzle according to the apparatus shown in FIG.

FIG. 4 is a perspective view showing a blowout nozzle according to the apparatus shown in FIG.

[Explanation of symbols]

 11-14 Cleaning Tank 15 Narrow Width Shading Member 15a Pile 17 Liquid Reel 22 Soft Liquid 25 Air Nozzle 26 Soaping Liquid 27 Blowing Nozzle 33 Antistatic Liquid 35 Squeezing Roller

Claims (2)

[Claims] 1. A method for cleaning a narrow light-shielding member, which is woven to have a width to be attached to a photo film entrance / exit of a Patrone body, using a pre-colored thread, wherein the light-shielding member is opened up to the root of the pile by preliminary cleaning. After fiberizing
A method for cleaning a narrow light-shielding member, which comprises cleaning the pile roots while circulating a cleaning liquid containing a cleaning agent in the next cleaning tank. 2. The pre-cleaning is characterized in that compressed air is blown to the light-shielding member in the liquid of the pre-cleaning tank, and the light-shielding member is opened to the root of the pile by bubbles generated at this time. 1. The method for cleaning a narrow light-shielding member according to 1.