JPH08109583A - Clarification of blend rate of cashmere in white raw wool and device for dyeing cashmere - Google Patents

Abstract

PURPOSE: To enable to substantially clarify the blend rate of cashmere on the basis of the dyeing concentration of whole white raw wool due to dyed cashmere by dyeing only the cashmere among the white raw wool. CONSTITUTION: The group of containers 9 receiving white raw wool samples containing cashmere, respectively, is dischargeably disposed in a tank 2 in which a sodium hydroxide aqueous solution W1 is maintained at a pH of 8.5-9.0 and at 60-70 deg.C. Only the cashmere among the white raw wool is dyed, dried, and subsequently measured to clarify the blend rate of the cashmere in the white raw wool based on the dyed concentration of the whole white raw wool.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and a cashmere dyeing apparatus for determining the mixing ratio of cashmere in white raw hair based on the dyeing density of cashmere dyed with a specific dyeing agent.

[0002]

2. Description of the Related Art The cashmere white wool (hereinafter referred to as "white wool") in the general market does not necessarily have a 100% cashmere content, and other fibers (wool, rabbit hair, nylon, etc.) are intentionally mixed. Often.

This white fluff is usually traded in units of 1 ton with a minimum unit of 15 kg, but in order to confirm its quality, 0.5 g of white fluff is finely cut into Japanese Industrial Standards (JIS- The 1030 method) is used to determine the cashmere mixing ratio, and the fibers are selected according to the difference in the scale surface of the fibers to determine the cashmere mixing ratio.

When the results of discrimination of conventional white fluff are averaged,
Currently, the cashmere mixing ratio is about 70% to 95%.

[0005]

However, since it is only a finely cut part of a large amount of white fluff that can be discriminated by such a conventional method, it is time and labor to discriminate 1 ton of white fluff as a whole. Is extremely difficult in terms of. In addition, it is also inappropriate to represent the cashmere mixing ratio of the entire white fluff on the basis of the result of this partial cashmere mixing ratio determination.

Therefore, the present inventor repeated various trial and error as a result of repeating various trial and error as to whether a method and an apparatus capable of discriminating the mixing rate of cashmere in a certain amount of white wool in a short time and with high accuracy could be considered. We have found the fact that by using certain dyes at certain pH and temperature ranges, only cashmere is dyed and other fibers are not dyed.

[0007]

The present invention takes advantage of the property of fibers that not all fibers are similarly dyed together with the same dye. In particular, the present invention is technically characterized in that only an aqueous alkaline sodium carbonate solution having a predetermined pH concentration heated to a predetermined temperature dyes cashmere in a specific color.

In order to achieve the above-mentioned object by making the best use of this technical feature, the method according to the present invention uses a sodium carbonate aqueous solution having a pH concentration of 8.5 to 9.0 and a temperature of 60 to 70.
It is characterized in that the white fluff containing cashmere is immersed in this aqueous solution for a predetermined period of time to keep only the cashmere dyed, and the mixing ratio of the cashmere in the white fluff is determined by the staining concentration of the white fluff.

Further, the apparatus according to the present invention is capable of accommodating a tank for storing an aqueous sodium carbonate solution having a pH concentration of 8.5 to 9.0 and a white fluff containing cashmere arranged in the tank. And a temperature adjusting means for maintaining the temperature of the aqueous sodium carbonate solution in the tank at 60 to 70 ° C.

Further, in the apparatus according to the present invention, at least one partition plate with a through hole for partitioning the inside of the tank, a container fitted in the through hole and capable of accommodating white raw hair containing cashmere, and the partition plate. A liquid passage opening formed at both ends of the container facing both sides of the container, a passage communicating with the inside of the tank on both sides of the partition plate, and a circulation pump arranged in the passage. Is characterized by.

[0011]

The present invention, when the sodium carbonate aqueous solution is used as the dyeing material, between the cashmere and the fiber other than the cashmere,
It utilizes the property that the dyeing density remarkably differs depending on the pH density and temperature conditions.

That is, when the fiber is dyed with an aqueous solution of sodium carbonate, if the pH is 10 or more, the color development is deteriorated and p
When H is around 8, all fibers are colored red. But,
By setting the pH concentration of the aqueous sodium carbonate solution between 8.5 and 9.0, for example, about 8.7 and setting the temperature of the aqueous sodium carbonate solution to 60 to 70 ° C., sodium carbonate makes only the cashmere fibers red. To dye. On the other hand, fibers other than cashmere are hardly dyed, and as a result,
Among white fluff, the dyeing density of the whole white fluff is determined by the amount of cashmere.

When the cashmere mixing ratio is, for example, 95% or more, the white raw hair is dark pink as a whole, and when the cashmere mixing ratio is, for example, 70% or less, there is a lot of heterogeneous fibers and it is light pink.

Although the difference in the dyeing density can be almost confirmed with the naked eye, a spectrophotometer can be used to more accurately determine the density difference, that is, the cashmere mixing ratio.

[0015]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a side view of an apparatus for discriminating the cashmere mixture rate of white raw hair in a sectional view taken along the line I-I of FIG. 2, FIG. 2 is a plan view of an apparatus for discriminating the cashmere mixture rate of white raw hair, and FIG. 3 is an enlarged view of a container. A sectional view is shown.

To briefly explain this embodiment, an apparatus 1 for discriminating the cashmere mixture rate in the white raw hair is, as shown in FIG. 1, a tank 2 for storing a sodium carbonate aqueous solution W1 and a positioning in the tank 2. A partition plate 7 with a through hole, which is detachably placed in two steps up and down by a ring 5,
A container 9 which is hooked on the partition plate 7 with a through hole and which can store the white raw wool sample S therein, and a temperature adjusting means 11 for maintaining the temperature of the sodium carbonate aqueous solution W1 at 60 to 70 ° C. are provided. These configurations will be described in more detail below.

The tank 2 has a vertical cylindrical shape, has an opening 2a on the entire top surface, and has a discharge hole 2b formed at the center of the bottom surface. A cage 4 is fixed to the inner bottom of the tank 2 via a spacer 3.

The positioning ring 5 is arranged adjacent to the inner peripheral surface of the tank 2 and has an L-shaped cross section.

The partition plate 7 with a through hole has a vertical cylindrical shape that can be stored in the tank 2, and is composed of a partition plate 7a and a body portion 7c. The partition plate 7a is formed with a plurality of through holes 7b for hooking a container 9 described later. This through hole 7b is shown in FIG.
As shown in Figure 12,
A total of 17 holes are bored, four at 90 degree intervals and one at the center.

As shown in FIG. 3, the container 9 is composed of a container body 9a and net-equipped lid plates 9e and 9g. The container body 9a has upper and lower openings 9b and 9d at both ends, and a female screw 9c is formed on the outer periphery of the upper opening 9b.
The netted cover plate 9e is detachably attached to the upper opening 9b of the container body 9a, and the female screw 9 is attached to the lower surface thereof.
A male screw 9f that is screwed with c is formed. Further, the netted cover plate 9g is for mounting the white raw wool sample S,
The upper surface is fixed to the opening 9d below the container body 9a. A net N for passing the sodium carbonate aqueous solution W1 is attached to each net-equipped lid plate 9e, 9g. Instead of these net-equipped lid plates 9e and 9g, a small-hole-equipped lid plate (a lid plate having small holes formed in a flange instead of the net) may be used. The point is that the passage openings may be substantially secured at the upper and lower ends of the container 9.

The temperature adjusting means 11 is a thermostat 11.
It is composed of a and a heater 11d. The thermostat 11a includes a sensor unit 11b arranged in the tank 2.
And a signal from the sensor unit 11b causes the heater 11d to
And a converter 11c for controlling the. The heater 11d is obtained by covering the coil 11e with a waterproof body 11f, and is arranged between the slant 4 and the bottom surface of the tank 2 in a parallel state and bent in a hook shape so as to surround the discharge hole 2b.

Further, in this embodiment, the partition plate 7 with the through hole is provided.
A passage 13 is provided so as to communicate with each other inside the tank 2 divided into upper and lower sides with the boundary as a boundary. That is, the passage 13 is circulated by attaching the L-shaped short pipe 13f to the discharge hole 2b of the tank 2 via the connection pipe 13e, and connecting the connection pipe 13g, the connection pipe 13h, and the connection pipe 13i to the short pipe 13f. This circulation pump 13 is extended to the pump 13b.
A pipe 13c is formed upward from b, and an inverted U-shaped short pipe 13d is fixed to the upper end of the pipe 13c. The circulation pump 13b is provided with a conduit 13a for guiding the sodium carbonate aqueous solution W1 from the storage source R1 to the circulation pump 13b by the pump P.

An opening / closing valve V1 for switching between introduction and circulation of the sodium carbonate aqueous solution W1 is provided in the conduit 13a, and a discharge valve V2 for discharging the sodium carbonate aqueous solution W1 is provided in the connecting pipe 13g. Is attached.

Next, a method of discriminating the cashmere mixing ratio in white raw hair using this device 1 will be described with reference to FIGS. 1 to 3.

A sample S of 5 g of white fluff randomly sampled from a bag packed with 15 kg was packed in the container body 9a with a slight bulge, and then the male screw 9f of the netted cover plate 9e and the container body 9a. The female screw 9c of
Prepare 34 sample containers 9 ...

Next, the positioning ring 5 is dropped on the upper surface of the cage 4 of the tank 2, and the lower end of the body portion 7c of the partition plate 7 with the through hole of the first stage is hooked on the positioning ring 5. The 17 containers 9 filled with the sample S in each of the through holes 7b of the through hole partition plate 7 are dropped from the net cover plate 9g side, and the other side net cover plate 9e is inserted into the through hole partition plate 7. The partition plate 7a is hooked.

Next, the positioning ring 5 is dropped on the upper surface of the first partition plate 7 with through holes, and the lower end of the body portion 7c of the second partition plate 7 with through holes is hooked on the positioning ring 5. Then, the 17 containers 9 filled with the sample S are hooked in the same manner as in the above case. (In FIG. 3, the container 9 is omitted at the locations of the through holes 7b of the first and second through hole partition plates 7 for convenience of description.)

In this way, the total number of the containers 9 to be hooked on the partition plate 7 with a through hole is set to 34 because white barley is usually traded in 67 units of 15 kg bags per ton (to be exact, 100).
5kg), take one sample S from each bag and check its quality as quickly as possible.
This is because at least 67 containers 9 are required, but if the quality is checked in two times, half the required number is 34, which is the required number.

Thus, 34 containers 9 (first treatment)
Alternatively, in the tank 2 in which 33 pieces (second treatment) are arranged, it is preheated to 65 ° C. and is 8.5 to 9.0 p.
By operating the pump P of the sodium carbonate aqueous solution W1 set to H, the tank 2 is supplied from the storage source R1 of the sodium carbonate aqueous solution W1 through the pipeline 13a to the short pipe 13d.
Supply in. 34 (or 33) in tank 2
When all the containers 9 of No. 3 are soaked in the sodium carbonate aqueous solution W1, the pump P is stopped and the opening / closing valve V1 is closed.

In this state, the circulation pump 13b is driven to drive the aqueous sodium carbonate solution W1 in the tank 2.
Is returned from the discharge hole 2b to the circulation pump 13b, and the conduit 1
3c and the short pipe 13d are passed, and it supplies in the tank 2. The re-supplied aqueous solution of sodium carbonate W1 is from the upper side of the partition plate 7 with a through hole in the second stage, and the net N of the net cover plate 9e of the 17 containers 9 hooked on the partition plate with a through hole 7 is held. Pass through. Aqueous sodium carbonate solution W1 that has passed through this net N
Only the cashmere in each container 9 is dyed red, passes through the net N of the net-equipped cover plate 9g, and is discharged right above the partition plate 7 with through holes in the first stage. This discharged aqueous sodium carbonate solution W1
Passes through the net N of the netted cover plates 9e of the 17 containers 9 hooked on the partition plate 7 with through holes in the first stage. The sodium carbonate aqueous solution W1 that has passed through this net N is stored in each container 9 of the first stage.
Only the cashmere inside is dyed red as in the above case,
After passing through the net N of the net-equipped lid plate 9g, it is discharged below the babysitting 4. The temperature of the sodium carbonate aqueous solution W1 discharged below the baby cage 4 is monitored by the sensor unit 11b. The temperature of the aqueous solution of sodium carbonate W1 changes to the set temperature (6
When the temperature becomes lower than 5 ° C.), the coil 11e is energized by the converter 11c to heat the aqueous sodium carbonate solution W1 to the set temperature. The heated aqueous solution of sodium carbonate W1 is returned to the circulation pump 13b through the short pipe 13f to the connecting pipe 13i, stirred, and passed through the pipe line 13c and the short pipe 13d again to be supplied into the tank 2 at about 65 ° C. .

In this embodiment, the circulation pump 13b is actuated for 3 minutes and stopped for 1 minute four times to immerse the white raw wool sample S in the aqueous sodium carbonate solution W1 for 15 minutes.

The reason why the intermittent circulation system is adopted in this way is that the sodium carbonate aqueous solution W1 is used without stopping for 1 minute.
Is continuously circulated, the sample S is pressed against the netted cover plate 9g and compressed by the fluid pressure of the aqueous solution W1,
This is because the aqueous sodium carbonate solution W1 does not flow evenly in the sample S. Further, if the sample S is not exposed to the aqueous sodium carbonate solution W1 for 15 minutes, the cashmere cannot be dyed uniformly.

When the above dyeing process is completed, the discharge valve V2 is opened to discharge the sodium carbonate aqueous solution W1 from the tank 2.

After the above discharging step, the storage source R1 is switched to the water storage source R2, and the wash water W2 is fed into the tank 2 through the conduit 13a to the short pipe 13d, as in the case of the sodium carbonate aqueous solution W1. The wash water W2 is again circulated from the tank 2 through the short pipe 13f to the connecting pipe 13i to the circulation pump 13
Then, the tank 2 is returned to the tank 2 through the conduit 13c and the short pipe 13d.
And the sample S in each container 9 is washed with water.

After this water washing step, the sample S is taken out from each container 9 and dried. Regarding the overall dyeing density in the sample S thus taken out, the greater the amount of cashmere occupying in the sample S (that is, the higher the cashmere mixing ratio), the darker the sample S becomes, and the darker pink color is seen as a whole. The smaller the amount of cashmere in S is (that is, the lower the mixing ratio of cashmere is), the lighter the sample S is, and the lighter pink color is seen as a whole.

The density of the pink color, that is, the dyeing density is so clear that it can be visually confirmed when the cashmere mixing ratio is extremely high or extremely low. However, if necessary, a spectrophotometer can be used to more objectively measure the dyeing density of the sample S having a similar cashmere mixing ratio.

Furthermore, when cashmeres that have been damaged by mold or excessive processing (hereinafter referred to as "damaged cashmere") are partially included, these damaged cashmeres are, as shown by symbol S'in FIG. 3, Since the spots are dyed particularly red, the degree of damage of cashmere on the white fluff can be determined at the same time by the distribution of the spots dyed red.

As described above, if the device 1 for discriminating the cashmere mixing ratio in the white raw hair is used, 5 g of the sample S can be packed in each of the 34 containers 9 at the maximum, and therefore, a general transaction unit. White fluff 1
The quality of tons (about 67 pieces of 15 kg of white fluff) can be determined by performing the treatment twice.

However, the number of bags from which the sample S to be inspected is taken out can be freely selected from 1 to 34 bags, and as described above, the more bags from which 5 g of the sample S is taken out, the higher the discrimination accuracy becomes. Further improvement and more accurate mass average value of cashmere mixture ratio can be obtained.

In this embodiment, the sodium carbonate W1 was set to pH 8.5 to 9.0 at 65 ° C., but not limited to this, at a predetermined temperature of 60 to 70 ° C. and 8.5.
Predetermined concentrations of ˜9.0 pH can be appropriately combined.

The shape and quantity of the tank 2 and the container 9 can be changed variously. For example, the shape of the tank 2 and the container 9 can be formed in a polygonal shape, and 67 samples can be stored in the tank 2 at a time. You may comprise so that the container 9 may be arrange | positioned.
Alternatively, the sodium carbonate aqueous solution W1 may be directly flown into each container 9 containing the sample S.

[0042]

As described above, according to the method of the present invention, the pH concentration is 8.5 to 9.0 and the temperature is 60 to 70.
By soaking white fluff containing cashmere in a sodium carbonate aqueous solution at ℃, only cashmere in it can be dyed evenly. This dyed white raw hair surely shows a predetermined staining density according to the cashmere mixing rate, and by measuring this staining density with the naked eye or using a spectrophotometer, the cashmere mixing rate can be quickly and highly accurately determined. Can be almost determined with. In addition, since damaged cashmere is dyed darker than ordinary cashmere, the degree of damage to the white fluff itself can be visually confirmed.

Further, according to the apparatus of the present invention, the number of containers for filling white fluff can be freely adjusted, and by averaging the concentrations of the white fluff dyes filled in the containers, the overall quality ( This has the effect of being able to roughly classify a large amount of average values.

Further, the apparatus according to the present invention is provided with a partition plate with a through hole for partitioning the tank and a passage communicating with each other in the tank, and an aqueous solution of sodium carbonate is circulated in this passage, so that white raw wool is removed. It has the effect of being able to dye evenly and quickly.

[Brief description of drawings]

FIG. 1 is a side view of an apparatus for determining a cashmere mixture ratio in white raw hair.

FIG. 2 is a plan view of an apparatus for discriminating the cashmere mixing ratio in white raw hair.

FIG. 3 is an enlarged cross-sectional view of a container.

[Explanation of symbols]

 1 Device for distinguishing cashmere mixture ratio 2 Tank 9 Container 9e, 9g Cover plate with net 11 Temperature adjusting means 7 Partition plate with through hole 7b Through hole 9b, 9d Both end openings 13 Passage 13b Circulating pump S White raw wool sample N net W1 Aqueous sodium carbonate solution

Claims (3)

[Claims] 1. A sodium carbonate aqueous solution having a pH concentration of 8.5.
To 9.0, the temperature is maintained at 60 to 70 ° C., the white fluff containing cashmere is immersed in the aqueous solution for a predetermined time to dye only cashmere, and the mixing ratio of the white fluff determines the cashmere mixing ratio in the white fluff. Method. 2. A tank for storing an aqueous solution of sodium carbonate having a pH concentration of 8.5 to 9.0, a container arranged in the tank and capable of accommodating white fluff containing cashmere therein, and the inside of the tank. And a temperature adjusting means for maintaining the temperature of the aqueous sodium carbonate solution at 60 to 70 ° C. 3. At least one partition plate with a through hole for partitioning the inside of the tank, a container fitted in the through hole and capable of containing white raw hair containing cashmere, and facing both sides of the partition plate. The cashmere dyeing according to claim 2, further comprising: a liquid passage port formed at both ends of the container, a passage communicating with the inside of the tank on both sides of the partition plate, and a circulation pump arranged in the passage. apparatus.