Notice Of Fire Safety Rework In Light Textile Printing And Dyeing Industry, Please Read It!

"From the dye vat of the workshop to the blue print fashion Town, from the" road market "to the world's textile city. In the water town of Shaoxing, a beautiful brocade is woven on a cloth. Shaoxing is known as the world textile capital, and the pattern of Shaoxing Textile City + light textile industry plays a decisive role in the development of the whole city. To a certain extent, it represents a great mark of Shaoxing. But do you know how much fire hazard the textile and dyeing industry is facing? What are the causes and characteristics of its fire? So in this special time period, we have prepared a "Notice of fire safety recovery for textile and dyeing industry" for you to read!

Fire characteristics of textile and dyeing industry

The textile and dyeing industry has the characteristics of dense personnel, large fire load, difficult evacuation of materials after fire, and difficulty of fire fighting.

Causes of fire in textile and dyeing industry

01, open fire

Commonly used are electric welding, gas welding, blinding lamp, electric furnace and other improper use of fire, improper smoking and fire.

02. Electrical short circuit ignition

There are many electrical equipment in the textile and dyeing industry, and the short circuit is easy to ignite, especially when wires and equipment are used for a long time. Aging is more likely to happen.

03. Lightning strikes fire.

Fire accidents caused by lightning protection or poor grounding are also frequent.

04. Electrostatic ignition

High voltage static electricity caused by the aggregation of fibers and dust in the air will cause fire. Often occurs in the dust concentration workshop, dust chamber and use high impedance raw materials such as hemp, synthetic fiber, workshop humidity too low place.

Outstanding fire hazards

I. printing and dyeing process

The printing and dyeing production process is different according to the varieties, specifications and finished products requirements of the fabrics. There are some differences in the technological process. However, the dyeing process generally includes: White - singeing - desizing, boiling - bleaching - mercerizing - preset - rolling color (priming) - reducing soaping - setting - pre shrinking - testing - finished products. The printing process generally includes: White - singeing - Cooking - oxygen bleaching - mercerizing - preset - rolling color (bottom color) - pattern design - draft - plate making - Printing - steaming - water washing - setting - calendering - pre shrinking - finished products. Whether it is dyed or printed, it contains two processes that are prone to fire, such as singeing and shaping. At the same time, the dangerous chemicals such as sodium silicate, hydrogen peroxide, strong acid and strong alkali are used in the pretreatment process of desizing and boiling. These chemicals are inflammable and some react with other substances to produce combustion.

Two. Singeing process

There are many fluff on the surface of printing and dyeing raw materials. In order not to affect the quality of printing and dyeing, we must remove the fluff first. At present, singeing is mainly through gas singeing, mainly through flame removal. The degree of singeing depends on the distance between fire and cloth, the size of fire and the running speed of cloth. The process is divided into cloth Bristle - singeing - extinguishing - falling cloth. Because there is a naked flame when burning, if the operation is careless, such as cloth speed is too slow, the temperature is too high and the time is too long, it will cause the fabric burning. In addition, once the gas pipeline or gas cylinder leaks, it may lead to fire and explosion accidents.

Three, stereotype process

In order to achieve good stability, crease resistance and handle in the process of printing and dyeing, the stereotyping machine is needed to finalize the fabric so as to eliminate the internal stress and wrinkles caused by the fabric in the preceding process. The working principle of the stereotyping machine is that the textile auxiliaries such as stabilizers and so on are placed into the oven after rolling evenly. After drying, the fabric will be dried and shaped under high temperature and hot air, and the cloth has good handle and stability after being finalized. Because of the high temperature inside the molding machine and the accumulation of velvet and oil pollution, the fire risk is great.

The main reasons are:

First, the heat setting oil and electric heating are used as heat source for the setting machine. The leakage of the heat conducting oil and the failure of the electric heating temperature control device are all likely to cause fires.

Two, the fabric is heated by the oven to produce organic oil (from the above process), and the flying fabric and fiber particles formed on the surface of the fabric form oil stain, accumulate for a long time, and cause fire easily in the oven.

The three is because some fabrics, especially chemical fibers, generate static electricity through mechanical friction. The voltage can reach as high as tens of thousands of volts, which is easy to cause electrostatic sparks, thus causing fires.

Four. Dyeing auxiliaries

Dyeing auxiliaries refer to auxiliaries added in the printing and dyeing process to improve processing technology, improve operational efficiency, improve fabric quality and related performance indicators. There are hundreds of varieties of printing and dyeing auxiliaries, many of which are flammable dangerous chemicals, such as organic solvents, acetone, and insurance powder. There are also some printing and dyeing auxiliaries, such as sulphur dyes, insoluble azo dyes, phthalocyanines, oxidants, strong acids and strong alkalies, which are not combustible but react with flammable gases.


How to do well fire safety work after resuming work?

1, strictly implement the main responsibility of fire safety.

We must strictly implement the main responsibility of unit fire safety, abide by the laws and regulations of fire control, carry out the duties of the post, organize a fire safety inspection, check all kinds of fire hazards in time, conduct a comprehensive overhaul of fire facilities and equipment, and ensure the completion of all kinds of fire equipment. To strengthen fire safety protection for key parts, special operations operators must be certified.

2, pay attention to key links to control

The singeing room is the focal point of fire prevention work in the textile and dyeing industry. The workshop structure should conform to the fire prevention code, at least two grade fire resistant building grade, and must be separated from other parts. The wall should be a firewall, and the door should be a class of fire doors to prevent the spread of fire. When the wool is singeing, the cloth speed should be controlled reasonably. The transmission device and heater should be linked. The speed should be too fast and too slow to alarm automatically, so as to prevent the fabric from being heated for too long. The singeing machine should have good facilities for dust removal, smoke exhausting and exhausting. Gas pipeline should be equipped with flammable gas alarm device, and cut off valve linkage. An automatic stop device should be set for singeing machine, and the gas source should be cut off immediately.

3, keep safe exit and evacuate passageway unimpeded.

Keep safe exit and evacuate passageway unimpeded. It is forbidden to park electric bicycles or stacked debris in evacuation passageway. It is strictly prohibited to charge electric vehicles in staircases and evacuation passageways.

4. Set up dangerous goods warehouse correctly.

Dangerous goods warehouse is set up to store dangerous dyeing auxiliaries. Dangerous goods storehouse should be installed at the edge of factory area, and no combustible material can be stacked within the range of fire safety. Storehouses should have good ventilation, heat dissipation, wet doors and windows, and ensure that the buildings are cool and dry and must be protected from direct sunlight. The ground should prevent friction from sparking. Explosion-proof lighting should be used and electrical power switches should be installed outside the warehouse. The warehouse should be equipped with good lightning protection facilities. At the same time, dangerous goods storehouse should strictly enter and manage the system, prohibit the vehicles that will cause sparks to enter or approach, and strictly prohibit fireworks or carrying kindling.

5, regularly carry out pipeline fire prevention inspection system.

Regularly check the heat conduction oil pipeline and temperature control device in the oven of the stereotype machine, invite qualified agencies to detect the pipeline, if there is oil leakage, deal with it promptly; remove the oil and flying flowers in the machine and exhaust pipe in time; this measure is particularly important; the fire cause of most of the stereotypes machine is this, and eliminate fire hazards. The technical transformation of the stereotype machine and the addition of steam pipes to the exhaust pipe are carried out. A steam pipe can be opened in case of a fire. A wire mesh shield is installed on the heat sink to allow sufficient clearance between the radiator and the heat sink to prevent the flying flowers from falling on the heat sink to cause combustion.