1. This machine is mainly composed of a cloth storage tank, a circulation system, a filter and heat exchanger, a cloth discharging cylinder (auxiliary cylinder), a swinging device and a control system.
2. The circulation of dye liquor is realized by a circulating pump directly driven by a motor. The circulating pump sucks dye solution from the bottom of the machine and sends it to the nozzle through the heat exchanger. The pressure of the nozzle is regulated by the throttle valve installed at the outlet of the circulating pump. When the main pump motor is driven by frequency converter, there is no throttle valve.
3. The pressure gauge and thermometer are installed on the machine to display the nozzle pressure and the temperature of the dye solution respectively.
4. The front of the heat exchanger is a filter, and a filter screen is installed in the heat exchanger to intercept the fluff in the circulating liquid flow, and a heating/cooling valve is installed on the heat exchanger to respectively heat/cool the dye solution.
5. The rope-like fabric runs forward in the cloth storage tank and is lifted by the lifting roller driven by frequency conversion motor, and its speed is displayed on the speed indicator on the electric cabinet.
6. The charging barrel (auxiliary cylinder) is used to prepare dyes and chemicals. Open the water inlet valve or reflux valve, and put clean water or dye solution into the barrel. The solution in the bucket can be stirred with an electric stirrer. Open the direct steam heating valve to heat liquid.
7. Warning: When the temperature of dye solution exceeds 85℃ [185 ℉], it is not allowed to open the reflux valve.
Second, the preparation specification before dyeing fall cylinder
1. When the last tube of cloth is dyed and kept warm, find the next round of cloth and push it to the dyeing machine for storage. If the next round of cloth is not ready, notify the cloth preparation team to complete it as soon as possible.
2. Before laying each cylinder, check the relevant information according to the requirements in the work instruction, such as the odd number of cloth, the number of cloth and whether the cloth is prepared evenly.
3. Pay attention to whether the last cylinder cloth has been made of dark cloth. If it has been made of dark cloth and dyed with light cloth, it is necessary to ask for the prescription of washing the cylinder on the color chart (generally, the prescription of washing the cylinder uses foaming additive: NaOH, Na2S2O4, 95℃×20' to wash a cylinder).
4. In particular, check whether the cylinder cloth is pressed correctly. If the cylinder cloth is not properly pressed, it will be distorted during cooking and dyeing. Flat cloth and positioning cloth should be cut with three-inch holes for ventilation, and four-inch holes should be cut on both sides and ribs.
5. After the cylinder cloth is ready, it should be sent to the single auxiliary agent room to weigh the required auxiliary agents, and each auxiliary agent should be checked before it can be put into use.
6. The cloth used for cylinder pulling, whether it is new embryo or mended cloth, should be checked and weighed again to prevent cloth leakage.
Three, cylinder boiling cloth specifications
1. First of all, we must understand the knowledge of Amoy. Cooking will remove pigments and impurities from fibers by chemical methods, and improve the water absorption and whiteness of knitted fabrics, especially the combination of two colors.
2. The common auxiliaries for cooking cloth include HA alkali oil, GLM anti-wrinkle agent, 4+8 degreasing agent, NaOH salting-out and H2O2? Hydrogen peroxide, acetic acid, enzyme deoxyenzyme.
3. First, pour the cylinder into water, about 1/3 or 2/3 water level, add HA, GLM, 4+8 dropwise, raise the temperature to 50℃, and then put the whole cylinder into cloth.
4. Adjust the water level and machine speed, and set the time required after entering the cloth.
5. Put it in cloth for about 5 minutes and then add sodium hydroxide. After adding NaOH, clean the auxiliary cylinder with clear water, and then add H2O2 with circulating water. If NaOH remains at the end of the auxiliary cylinder, a chemical reaction will occur when H2O2 contacts, and many bubbles will appear in the auxiliary cylinder.
6. After adding additives to the cloth, select the heat preservation time according to the computer program.
7. When the cylinder heats up, turn off the automatic air pump. When the machine is running, the air is too strong. Open the cylinder door to remove the air to prevent the air from falling, tumbling and pressing the bottom. Adjust the air pump pressure to 2-3, and adjust the front and rear showers to the correct 3, 4, 5, 6 and 7 grids.
8. When flattening machine is used, the cylinder must be straightened, and there can be no half-twist, so as not to cause creases. The cloth should be fed in the specified direction.
9. When making woven cloth, mercerized cloth and artificial cotton by pulling cylinder, pigsty should be wrapped when boiling and bleaching to prevent friction caused by slipping and easy to scratch.
65438+
1 1. When boiling cloth for heat preservation, dyeing auxiliaries such as HAC and dyes should be applied to the one-handed auxiliary room.
12. After the boiled cloth is insulated, it must be neutralized with HAC. This HAC should not be taken too early, because it will volatilize [HAC 0.9% 60 ℃× 10'] and its PH value is 6.5-7.5.
After13. HAC pH is OK, 0.02g/L deoxyenzyme is needed, and 15 minutes is run to measure the H2O2 content (take water to the office for detection).
14. After each tube of cloth is cooked, the whiteness of A4 should be cut, which directly affects the brightness, freshness and lightness of the combination of 2-dyar and photosensitive color.
15. Normal cloth cooking takes 150 minutes, so all links should be operated quickly, and it cannot be delayed for a long time, otherwise the progress and output will be affected.
16. Every time the cloth is cooked, the machine status should be recorded (written by the team leader).
17. All auxiliary barrels should be packed with different kinds of additives.
Fourth, the dyeing operation specification.
1. Check the lap speed. The normal lap speed is 2'30 ". If it is beyond this range, raise your hand and ask the superior to handle it, and pull the cylinder for 30 "-50" seconds.
2. Observe whether the cloth is twisted, whether there is poor pumping (cylinder), and whether all valves are closed.
3. Confirm the dyeing procedure, which should be selected according to the requirements of the work order. After selection, the mechanic or team leader should check again. When checking the water level, be sure to stop the main pump, let the water look stable on the water gauge, and check the paint. Only when the color of the sample is consistent (that is, try to look at the colored water with a piece of paper) can it be dyed out of the tank: check whether the amount of additives is less or more, and whether the quality of the same name is consistent with the previous one. If the above check is correct, the team leader will sign it for confirmation.
4. Dyes can only be bathed with clean water in the auxiliary cylinder, and hot water or steam is not allowed.
5. The time of dye pumping into the cylinder should be pumped according to the programmed computer, neither fast nor slow.
6. When pumping dye, if the machine is not smooth, stop feeding and raise your hand to the superior.
7. 5 minutes after the dye is drained, add salt Nacl, sodium sulfate].
8. Under normal circumstances, sodium sulfate is added in four times, and the weight of each time is added according to the requirements of the work order. Generally, it takes 40 minutes to pump into the cylinder, and 5 minutes after adding sodium sulfate. It is forbidden to take the dye solution to the official room to measure the density and proportion of the dye solution. This is specially designated. If the specific gravity is not good, the personnel of Huwei Party will add water or additives, and then measure the specific gravity until it can be done.
9. The specific gravity is OK, followed by Na3PO4 or Na2CO3, and the number is the same as that of sodium sulfate.
10. Pay attention to foaming when adding dye auxiliaries. If the foaming is serious, defoamer should be used to defoam, and FFC should be used with the consent of the workshop foreman.
1 1. Dyeing, heating and heat preservation, with the heating rate of 0.5℃/min at 50℃ and 0.7℃/min at 60℃, and the heat preservation time should be selected according to the specified time of single top.
12. When adding dyes and auxiliaries to the heat preservation period, the machine must be normal, otherwise it is easy to cause dyeing defects.
Verb (abbreviation for verb) post-processing and others
1. After heat preservation, neutralize with HAC, at 50℃× 10' 0.5g/lHAC. This HAC should not be taken too early, and its characteristic is volatilization.
2. After neutralization by HAC, the next step is to boil the alkali twice with hot water at 95℃× 10' to wash off the residual floating dyes on the cloth. If there is a cylindrical shower head, it is necessary to open the shower head and wash it for the first time.
3. After alkali cooking, take the car out of the can, cut the color to achieve the color matching on the color matching table, and then do post-processing after OK. The through train can only be cut for color matching after finishing the post-processing process.
4. The drying time of color matching should not be too long, especially for bleached cloth. After completion, the color should be blown back by steam and sent to the color matching table for color matching.
5. After the color matching is OK, wash the water clean. If there is a requirement for fixing color, fixing oil is generally used to improve the dry and wet fastness.
6. It needs to be softened after fixing, and it is not needed (such as printed cloth). TEXC base oil is used for dyeing 15' or 10', S- 150 soft oil is used for bleaching, and sometimes S- 150 is used for dyeing films. Requirements for checking work orders before softening.
7. When fixing and softening, clean the empty car and cloth rack once to prevent stains.
8. The cloth out of the tube should be wrapped with tape and sent to the dehydrator.
9. If there is any problem, write down the list number, date and tube number on the cloth head when leaving the gas cylinder.