CN103721355A - Method for improving water permeability resistance performance of outer layer of fire protective clothing and recovering original appearance of outer layer of fire protective clothing - Google Patents
Method for improving water permeability resistance performance of outer layer of fire protective clothing and recovering original appearance of outer layer of fire protective clothing Download PDFInfo
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- CN103721355A CN103721355A CN201410017610.2A CN201410017610A CN103721355A CN 103721355 A CN103721355 A CN 103721355A CN 201410017610 A CN201410017610 A CN 201410017610A CN 103721355 A CN103721355 A CN 103721355A
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Abstract
The invention relates to a method for improving the water permeability resistance of an outer layer of fire protective clothing and recovering the original appearance of the outer layer of the fire protective clothing. According to the method, strong glue spray processing, lustering wax spray processing and first time waterproof spray processing are carried out on the outer layer of the fire protective clothing, the processed outer layer of the fire protective clothing maintains high surficial humidity resistance (spray rating is larger than or equal to four), higher water permeability resistance is provided (hydrostatic pressure reaches 5-8kPa), the icing resistance capacity is improved, and working efficiency of firefighters under low-temperature environment in cold region is guaranteed. Cleaning agent processing is carried out on the outer layer of the fire protective clothing by using the method continuously to remove sprayed glue, sprayed wax and sprayed agents effectively, finally second time waterproof spray processing is carried out to recover the surficial humidity resistance of the fire protective clothing, the original appearance of the fire protective clothing is recovered thereby, and normal use of the fire protective clothing by the firefighters under non-low-temperature environments can be guaranteed.
Description
Technical field
The present invention relates to security against fire field to the outer field processing of fire extinguishing protective garment, be specifically related to a kind of method that improves the outer water permeability resistance of fire extinguishing protective garment and recover outer original appearance.
Background technology
Fire extinguishing protective garment can protect fireman not encroached on by flame and radiant heat, and fire extinguishing protective garment comprises skin, waterproof ventilative layer, thermal insulation layer and comfort liner.Relevant criterion requires skin to have certain surperficial moisture resistance (spray rating >=3 grade), but outer field water permeability resistance is not done to requirement, just the water permeability resistance of waterproof ventilative layer has been done to requirement, for outer field poisture-penetrability, does not also do requirement.In the process of using in reality, the water of fire-fighting lance ejection is easy to splash fireman and puts out a fire on protective garment skin, even penetrates skin and enter on waterproof ventilative layer after reflection or refraction, can be along the downward diffluence in the surface of waterproof ventilative layer at these water of normal temperature environment, but these water quarrel of can build-uping ice, even makes protective garment become nilas and affect Operational Effectiveness Rat under low temperature environment.Therefore, particularly the Research Significance of water permeability resistance is great for the freezing ability of fire extinguishing protective garment, the present invention is directed to this problem and proposes a solution, to improving the Operational Effectiveness Rat of fireman under cold district low temperature environment.
Summary of the invention
The current research for the outer water permeability resistance of fire extinguishing protective garment is less, and the present invention has proposed a kind of method that improves the outer water permeability resistance of fire extinguishing protective garment and recover outer original appearance at this point.The method is processed and waterproof spray processing for the first time through powerful glue spraying processing, glazing wax spray, can under the condition that keeps superficies moisture resistances (spray rating >=4 grade), further improve its water permeability resistance (hydrostatic pressing is brought up to 5-8kPa).Impulsive force after hydraulic giant reflection or refraction can weaken greatly, and when this part water splashes fire extinguishing protective garment skin, because skin after treatment has higher surperficial moisture resistance, being bonded at outer field water can be eliminated along outer landing.Because skin after treatment has higher water permeability resistance, and then eliminated major part and penetrated outer field water.Therefore the fire extinguishing protective garment skin of high surperficial moisture resistance and high water permeability resistance has certain freezing ability, although poisture-penetrability declines to some extent after processing simultaneously, does not affect the use of fire extinguishing protective garment under low temperature environment.When fire extinguishing protective garment need to be used under normal temperature environment, can remove glue spraying, wax spray and spray by cleaning agent, recover outer field poisture-penetrability and water permeability resistance, and recover outer field surperficial moisture resistance by waterproof spray processing for the second time, and then recovered outer field original appearance.
The technical scheme that the present invention takes is: a kind of method that improves the outer water permeability resistance of fire extinguishing protective garment and recover outer original appearance, it is characterized in that, and the method comprises the following steps:
Step 1: powerful glue spraying processing
Use powerful glue spraying vertically to spray the skin of fire extinguishing protective garment, jet length is 0.1-0.3m, and injection duration is 1-2s, and injecting times is 1-3 time, and be 10-20s each interval time, obtains powerful glue spraying fire extinguishing protective garment after treatment skin;
Step 2: glazing wax spray processing
Powerful glue spraying is placed 300-400s after processing, use glazing wax spray to continue the skin of fire extinguishing protective garment vertically to spray, jet length is 0.1-0.3m, injection duration is 2-5s, injecting times is 1-2 time, be 10-20s each interval time, then uses rag to smear evenly, obtains glue spraying, wax spray fire extinguishing protective garment after treatment skin;
Step 3: waterproof spray processing for the first time
Wax spray is processed rear 500-700s, use hair-dryer to be cured glue spraying, wax spray, then wait for 1800s-3600s, use waterproof spray to continue the skin of fire extinguishing protective garment vertically to spray, jet length is 0.1-0.3m, and injection duration is 2-3s, and injecting times is 1-2 time, be 5-10s each interval time, obtains glue spraying, wax spray, waterproof spray fire extinguishing protective garment after treatment skin for the first time;
Step 4: cleaning agent processing
By glue spraying, wax spray, the outer tiling of waterproof spray fire extinguishing protective garment after treatment for the first time, then use cleaning agent vertically to spray, jet length is 0.1-0.2m, and injection duration is 3-5s, and injecting times is 1-4 time, every minor tick 1-2s, obtain the fire extinguishing protective garment skin of cleaning agent spraying, then manually rub, and be positioned in water and wash, obtain removing the fire extinguishing protective garment skin after glue spraying, wax spray, spray, and be dried;
Step 5: waterproof spray processing for the second time
By outer dry fire extinguishing protective garment tiling, use waterproof spray vertically to spray, the distance of injection is 0.1-0.3m, injection duration is 2-3s, injecting times is 1-2 time, and be 5-10s each interval time, finally recovered the outer field original appearance of fire extinguishing protective garment.
Advantage of the present invention and good effect are: fire extinguishing protective garment skin is carried out to powerful glue spraying processing, can improve the water permeability resistance for the treatment of sites (area is more than 95%); Solved water permeability resistance in powerful glue spraying processing procedure improves to obtain problem of non-uniform to the processing of glazing wax spray on the one hand, has also reduced on the other hand the viscosity for the treatment of sites glue spraying, improves the water permeability resistance for the treatment of sites (area 100%) comprehensively; By the processing of waterproof spray, improved the surperficial moisture resistance that powerful glue spraying is processed and glazing wax spray treatment sites reduces, and then the fire extinguishing protective garment skin of be maintained original surperficial moisture resistance (spray rating >=4) and water permeability resistance raising (hydrostatic pressing can reach 5-8kPa), fire extinguishing protective garment after treatment like this has higher water permeability resistance and surperficial moisture resistance, and then there is certain freezing ability, the chance water freezing problem in the time of can effectively alleviating low temperature environment use.Adopt this method outer field original appearance of protective garment of can also recovering to put out a fire, the continuation of protective garment under normal temperature environment of being convenient to put out a fire used, and do not affect its poisture-penetrability simultaneously.Processing by cleaning agent can be removed glue spraying, wax spray and spray, and by waterproof spray processing for the second time, can recover the surperficial moisture resistance reducing because of processing, waterproof spray is processed does not affect the outer field hardness of fire extinguishing protective garment, fire resistance, physical property etc.In a word, the present invention contributes to improve the Operational Effectiveness Rat of fireman under cold district low temperature environment, also can recover the outer field original appearance of protective garment of putting out a fire simultaneously, has guaranteed the normal use of fireman under non-low temperature environment.
The specific embodiment
Below in conjunction with embodiment, further illustrate the present invention:
This method use colloidality moderate strength, the glue spraying that solid content is high are carried out powerful glue spraying processing to fire extinguishing protective garment skin; Use the wax spray of modest viscosity to carry out the processing of glazing wax spray to fire extinguishing protective garment skin; The waterproof spray that use has silane component or fluorine carbon component carries out waterproof spray processing for the first time to fire extinguishing protective garment skin; Use has carries out cleaning agent processing to fire extinguishing protective garment skin except the cleaning agent of glue function; The waterproof spray that use has silane component or fluorine carbon component carries out waterproof spray processing for the second time to fire extinguishing protective garment skin.
Embodiment 1
Step 1: powerful glue spraying processing
Use No. 75 non-drying type glue sprayings of 3M China Co., Ltd. vertically to spray fire extinguishing protective garment skin, jet length is 0.2m, and injection duration is 2s, and injecting times is 2 times, be 15s each interval time, obtains powerful glue spraying fire extinguishing protective garment after treatment skin; After processing, outer field water permeability resistance has obtained preliminary raising, and the glue spraying above treatment sites has certain viscosity, and outer field surperficial moisture resistance and poisture-penetrability decline to some extent simultaneously.
Step 2: glazing wax spray processing
Powerful glue spraying is placed 300s after processing, use the furniture light care agent of ShangHai HuangYu Science Development Co., Ltd to continue fire extinguishing protective garment skin vertically to spray, jet length is 0.2m, injection duration is 4s, injecting times is 2 times, be 15s each interval time, then uses rag to smear evenly, obtains glue spraying, wax spray fire extinguishing protective garment after treatment skin; After processing, outer field water permeability resistance is further improved, and wax spray has weakened the viscosity of glue spraying, and outer field surperficial moisture resistance and poisture-penetrability are not yet improved; Fire extinguishing protective garment skin after treatment, its surface has uniform glue spraying and wax spray, and hardness improves with untreated comparing before, but does not affect the outer field use of fire extinguishing protective garment.
Step 3: waterproof spray processing for the first time
Wax spray is processed rear 600s, use hair-dryer to be cured glue spraying, wax spray, then wait for 3600s, using German DBM(moral mark U.S.) the antifouling Buddha's warrior attendant spray of technology company continues the skin of fire extinguishing protective garment vertically to spray, jet length is 0.2m, and injection duration is 3s, and injecting times is 2 times, be 8s each interval time, obtains glue spraying, wax spray, waterproof spray fire extinguishing protective garment after treatment for the first time; After processing, outer field surperficial moisture resistance is improved, this skin (hydrostatic pressing has been brought up to 6kPa from 1.5kPa) with high water permeability resistance (spray rating=4) and high surperficial moisture resistance has certain freezing ability when low temperature environment is used, its poisture-penetrability is not yet improved but does not affect its low temperature and uses, its surface has uniform glue spraying and wax spray, hardness improves with untreated comparing before, but does not affect the outer field use of fire extinguishing protective garment.
Step 4: cleaning agent processing
By glue spraying, wax spray, the outer tiling of waterproof spray fire extinguishing protective garment after treatment for the first time, then use the fragrant cleaning agent of orange of 3M China Co., Ltd. vertically to spray, jet length is 0.2m, and injection duration is 4s, and injecting times is 3 times, every minor tick 1s, obtain the skin of cleaning agent spraying, then manually rub, and be positioned in water and wash, obtain removing the fire extinguishing protective garment skin after glue spraying, wax spray, spray, and be dried; After processing outer water permeability resistance and poisture-penetrability returned to untreated before, its surperficial moisture resistance declines to some extent.
Step 5: waterproof spray processing for the second time
By outer dry fire extinguishing protective garment tiling, with German DBM(moral mark U.S.) the antifouling Buddha's warrior attendant spray of technology company processes, vertical distance of spraying is 0.2m, injection duration is 2s, injecting times is 1 time, and be 8s each interval time, finally obtains the fire extinguishing protective garment skin after original appearance is recovered, skin after treatment has lower water permeability resistance, medium poisture-penetrability and higher surperficial moisture resistance (spray rating=4), and this normal temperature that has guaranteed fire extinguishing protective garment is used.
Embodiment 2
Step 1: powerful glue spraying processing
Use No. 77 multiplex glue sprayings of brute force of 3M China Co., Ltd. vertically to spray fire extinguishing protective garment skin, jet length is 0.1m, and injection duration is 2s, and injecting times is 3 times, be 10s each interval time, obtains powerful glue spraying fire extinguishing protective garment after treatment skin; After processing, outer field water permeability resistance has obtained preliminary raising, and the glue spraying above treatment sites has certain viscosity, and outer field surperficial moisture resistance and poisture-penetrability decline to some extent simultaneously.
Step 2: glazing wax spray processing
Powerful glue spraying is placed 400s after processing, use the furniture glossing wax of Shenyang narcissus Fine Chemical Co., Ltd to continue fire extinguishing protective garment skin vertically to spray, jet length is 0.1m, injection duration is 5s, injecting times is 2 times, be 20s each interval time, then uses rag evenly to smear, and obtains glue spraying, wax spray fire extinguishing protective garment after treatment skin; After processing, outer field water permeability resistance is further improved, and wax spray has weakened the viscosity of glue spraying, and outer field surperficial moisture resistance and poisture-penetrability are not yet improved; Fire extinguishing protective garment skin after treatment, its surface has uniform glue spraying and wax spray, and hardness improves with untreated comparing before, but does not affect the outer field use of fire extinguishing protective garment.
Step 3: waterproof spray processing for the first time
Wax spray is processed rear 700s, use hair-dryer to be cured glue spraying, wax spray, then wait for 3600s, use the nanoscale water proof anti-soil protection spray of Spain Tai Yagao company to continue the skin of fire extinguishing protective garment vertically to spray, jet length is 0.3m, and injection duration is 2s, and injecting times is 2 times, be 5s each interval time, obtains glue spraying, wax spray, waterproof spray fire extinguishing protective garment after treatment skin for the first time; After processing, outer field surperficial moisture resistance is improved, this skin (hydrostatic pressing has been brought up to 8kPa from 1.5kPa) with high water permeability resistance (spray rating=4) and high surperficial moisture resistance has certain freezing ability when low temperature environment is used, its poisture-penetrability is not yet improved but does not affect its low temperature and uses, its surface has uniform glue spraying and wax spray, hardness improves with untreated comparing before, but does not affect the outer field use of fire extinguishing protective garment.
Step 4: cleaning agent processing
By glue spraying, wax spray, the outer tiling of waterproof spray fire extinguishing protective garment after treatment for the first time, then use the fragrant cleaning agent of orange of 3M China Co., Ltd. vertically to spray, jet length is 0.1m, injection duration is 3s, and injecting times is 4 times, every minor tick 2s, obtain the skin of cleaning agent spraying, then manually rub, and be positioned in water and wash, obtain removing fire extinguishing protective garment after glue spraying, wax spray, spray outer and be dried; After processing outer water permeability resistance and poisture-penetrability returned to untreated before, its surperficial moisture resistance declines to some extent.
Step 5: waterproof spray processing for the second time
By dry skin tiling; process with the nanoscale water proof anti-soil protection spray of Spain Tai Yagao company; vertical distance of spraying is 0.1m; injection duration is 3s; injecting times is 2 times, and be 10s each interval time, finally obtains the fire extinguishing protective garment skin after original appearance is recovered; skin after treatment has lower water permeability resistance, medium poisture-penetrability and higher surperficial moisture resistance (spray rating=4), and this normal temperature that has guaranteed fire extinguishing protective garment is used.
In above-mentioned two embodiments, the outer field water permeability resistance of known fire extinguishing protective garment has been brought up to respectively 6kPa and 8kPa from 1.5kPa after testing, different impervious effects is mainly to be determined by different glue sprayings, in example 2,3M China Co., Ltd. No. 77 multiplex glue sprayings of brute force are higher than the solid content of No. 75 non-drying type glue sprayings of 3M China Co., Ltd. in example 1, its impervious better effects if of film that can form, therefore, take example 2 as most preferred embodiment.
Claims (1)
1. a method that improves the outer water permeability resistance of fire extinguishing protective garment and the outer original appearance of recovery, is characterized in that, the method comprises the following steps:
Step 1: powerful glue spraying processing
Use powerful glue spraying vertically to spray the skin of fire extinguishing protective garment, jet length is 0.1-0.3m, and injection duration is 1-2s, and injecting times is 1-3 time, and be 10-20s each interval time, obtains powerful glue spraying fire extinguishing protective garment after treatment skin;
Step 2: glazing wax spray processing
Powerful glue spraying is placed 300-400s after processing, use glazing wax spray to continue the skin of fire extinguishing protective garment vertically to spray, jet length is 0.1-0.3m, injection duration is 2-5s, injecting times is 1-2 time, be 10-20s each interval time, then uses rag to smear evenly, obtains glue spraying, wax spray fire extinguishing protective garment after treatment skin;
Step 3: waterproof spray processing for the first time
Wax spray is processed rear 500-700s, use hair-dryer to be cured glue spraying, wax spray, then wait for 1800s-3600s, use waterproof spray to continue the skin of fire extinguishing protective garment vertically to spray, jet length is 0.1-0.3m, and injection duration is 2-3s, and injecting times is 1-2 time, be 5-10s each interval time, obtains glue spraying, wax spray, waterproof spray fire extinguishing protective garment after treatment skin for the first time;
Step 4: cleaning agent processing
By glue spraying, wax spray, the outer tiling of waterproof spray fire extinguishing protective garment after treatment for the first time, then use cleaning agent vertically to spray, jet length is 0.1-0.2m, and injection duration is 3-5s, and injecting times is 1-4 time, every minor tick 1-2s, obtain the fire extinguishing protective garment skin of cleaning agent spraying, then manually rub, and be positioned in water and wash, obtain removing the fire extinguishing protective garment skin after glue spraying, wax spray, spray, and be dried;
Step 5: waterproof spray processing for the second time
By outer dry fire extinguishing protective garment tiling, use waterproof spray vertically to spray, the distance of injection is 0.1-0.3m, injection duration is 2-3s, injecting times is 1-2 time, and be 5-10s each interval time, finally recovered the outer field original appearance of fire extinguishing protective garment.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115780205A (en) * | 2022-11-07 | 2023-03-14 | 广东立胜电力技术有限公司 | Insulating paint repairing method for live working protective clothing |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2586501Y (en) * | 2002-11-01 | 2003-11-19 | 北京百正威塑胶制造有限公司 | Three-component all-plastic spraying polyurethane gymnasium surface |
| CN1575362A (en) * | 2001-01-30 | 2005-02-02 | 宝洁公司 | Coating compositions for modifying surfaces |
| CN101298740A (en) * | 2008-04-17 | 2008-11-05 | 安徽中天印染股份有限公司 | Technique for dyeing and finishing flax and Lyocell fiber mixed fabrics |
| CN102892945A (en) * | 2010-05-11 | 2013-01-23 | 美利肯公司 | Flame resistant textile materials providing protection from near infrared radiation |
| CN103224360A (en) * | 2013-03-14 | 2013-07-31 | 江门职业技术学院 | Environmentally-friendly jean crack slurry and crack jean fabric making method |
-
2014
- 2014-01-15 CN CN201410017610.2A patent/CN103721355B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1575362A (en) * | 2001-01-30 | 2005-02-02 | 宝洁公司 | Coating compositions for modifying surfaces |
| CN2586501Y (en) * | 2002-11-01 | 2003-11-19 | 北京百正威塑胶制造有限公司 | Three-component all-plastic spraying polyurethane gymnasium surface |
| CN101298740A (en) * | 2008-04-17 | 2008-11-05 | 安徽中天印染股份有限公司 | Technique for dyeing and finishing flax and Lyocell fiber mixed fabrics |
| CN102892945A (en) * | 2010-05-11 | 2013-01-23 | 美利肯公司 | Flame resistant textile materials providing protection from near infrared radiation |
| CN103224360A (en) * | 2013-03-14 | 2013-07-31 | 江门职业技术学院 | Environmentally-friendly jean crack slurry and crack jean fabric making method |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115780205A (en) * | 2022-11-07 | 2023-03-14 | 广东立胜电力技术有限公司 | Insulating paint repairing method for live working protective clothing |
| CN115780205B (en) * | 2022-11-07 | 2023-09-29 | 广东立胜电力技术有限公司 | Insulating paint repairing method for live working protective clothing |
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Address after: No. 110 Wei Jinnan Road, Nankai District, Tianjin Patentee after: Tianjin Institute of Fire Protection, Ministry of Emergency Management Address before: 300 171 No. 110 Weijin South Road, Nankai District, Tianjin Patentee before: Tianjin Fire Fighting Inst., Ministry of Public Security |
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