CN1007272B - Preparation of fabric fire-retardant finishing agent and its application - Google Patents
Preparation of fabric fire-retardant finishing agent and its applicationInfo
- Publication number
- CN1007272B CN1007272B CN 87101122 CN87101122A CN1007272B CN 1007272 B CN1007272 B CN 1007272B CN 87101122 CN87101122 CN 87101122 CN 87101122 A CN87101122 A CN 87101122A CN 1007272 B CN1007272 B CN 1007272B
- Authority
- CN
- China
- Prior art keywords
- dicyandiamide
- preparation
- formaldehyde
- aqueous solution
- finishing agent
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Landscapes
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
- Fireproofing Substances (AREA)
Abstract
The present invention discloses a preparation method and an utilization technique of a fire retardant finishing agent for fabrics. The preparation method comprises: phosphoric acids, dicyandiamide and formaldehyde are used to prepare an aqueous solution of hydroxymethylated amidino urea phosphate; dicyandiamide and formaldehyde are used to prepare an aqueous solution of hydroxymethylated dicyandiamide; the solutions are respectively stored. When utilized, the solutions are mixed and then diluted. The preparation method overcomes the defect that a finishing agent which is made by the existing phosphoric acid-dicyandiamide method of the same type can not be stored; the preparation method has the advantages of convenience for preparation, transportation and storage, applicability to cotton fabrics, vinylon fabrics, cotton and vinylon blended fabrics, etc., and in addition, the utilization technique has convenient synthesis and simple finishing process.
Description
The present invention is antiflaming finishing agent synthesis technique, the prescription that a kind of fabric carries out flame-proof treatment, belongs to fabric is carried out finishing field.
In recent decades, developed country has all proposed fire-retardant requirement with the various of cloth and public place with cloth to home-use cloth, clothing, thereby flame-proof treatment also just becomes an important topic of finishing process in printing and dye-ing.
Half durable flame-proof treatment needs the few fabric of repeated washing number of times for some, as curtain, UPHOLSTERY FABRIC etc. is to be suitable for, half present durable method has phosphoric acid-urea method, phosphoric acid-cyanamide method, pyrophosphoric acid-melamine method, phosphoric acid-methylol dicyandiamide method etc. several, wherein, the fabric of phosphoric acid and dicyandiamide method arrangement is from situation fire-retardant and washing fastness and fabric strength loss, is a kind of preferably (as W.A.Reeves as described in " the Fire Resistant Textiles Handbook " 1974.).It is with phosphoric acid Jia Shui, adds under the thermal agitation and to add the methylolation dicyandiamide, then with roll, baking process puts in order fabric.But poor with the antiflaming finishing agent bin stability that this method is synthetic, need join i.e. usefulness, otherwise just begin caking after 24 hours, be difficult to use, to bringing inconvenience in the actual production.In addition, do not see the report that this finishing agent is put in order polyvinyl or vinylon and cotton blend, only can put in order cellulose fibre.
The objective of the invention is to propose a kind ofly be convenient to produce, transport, stock and use, cost is low, excellent storage stability, and not only the suitable fibers cellulose fiber also can be used for the finishing agent of polyvinyl, vinylon and cotton blend fabric fire-retardant finishing and its preparation.
Technical essential of the present invention is: with phosphoric acid, dicyandiamide, the formaldehyde preparation methylolation guanyl-urea-phosphate aqueous solution, be called for short A liquid; With the aqueous solution of dicyandiamide, formaldehyde preparation methylolation dicyandiamide, be called for short B liquid again, store respectively then, mix towards rare getting final product in use.
At first the methylolation guanyl-urea-phosphate aqueous solution is by following prepared:
Wherein, phosphoric acid: dicyandiamide: formaldehyde=1: 1: the 1(mol ratio) dicyandiamide weight is 19.7% of A liquid gross weight, and outward appearance is colourless or light yellow viscous solution.
In addition, the aqueous solution of methylolation dicyandiamide is with following prepared:
Wherein, dicyandiamide: formaldehyde=1: the 1(mol ratio) dicyandiamide weight is 35.9% of B liquid total amount, and outward appearance is colourless or light yellow viscous solution.
Dicyandiamide in dicyandiamide in the A liquid and the B liquid is 1: 1.5.
A liquid separates preservation with B liquid, during use A liquid is mixed with B liquid,, gets final product to solid content 36% towards rare.
Because the hydroxyl on the fabric on the one hand with fire retardant in phosphoric acid partly form phosphate, generate ehter bond with the methylol partial dehydration on the other hand, the guanidine radicals urea in the fire retardant combines with the salt type bond of phosphoric acid, thereby certain washability is arranged.In addition, also since finishing agent between fiber, taken place crosslinked, thereby improved the wrinkle resistance of fabric.Except, Zheng Li fabric also has anticorrosion and antibiotic property like this.
With operations such as this finishing agent roll, dries by the fire, bakes, washes on common dyeing and finishing process equipment, just can carry out flame-proof treatment to cotton, polyvinyl and vinylon and cotton blend fabric, put in order product accordingly.With the polyvinyl is example:
Padding finishing agent ()/(pick-up 80～100%) preliminary drying → bake → soap
(solid content 34-40%) 80～100 ℃ of 130～145 ℃ of neutral detergents
3～7′ 1g/l20～60℃
Fabric after processing and sorting through soaping after 10～15 times, still can pass through testing vertical flammability.(wash conditions is the same, washing bath PH＜8)
Characteristics of the present invention can reduce:
1. bin stability is higher, and under suitable condition, it is many to store half a year, is convenient to produce, transport, stock.
2. fire retardant is synthetic common with raw material, and price is low.
3. synthetic method is simple, and equipment does not have specific (special) requirements, both can be used as production, also can synthetic voluntarily application in printing and dyeing mill.
4. use this fire retardant that fabric is put in order, technology is simpler, just can carry out on common equipment for dyeing and finishing.
5. after this fire retardant arrangement, fabric not only has anti-flammability preferably, also has wrinkle resistant and antibiotic, fungicidal properties.
6. washability is generally more than 10 times, and is particularly suitable for not needing often to wash fabric.
Below by example, just the present invention is described further:
Synthesizing of antiflaming finishing agent.
A formula of liquid: dicyandiamide 5kg
Water 8kg
Phosphoric acid (85%) 6.8kg
Formaldehyde (36%) 5.6kg
After in the reactor of 30 liters of steam jacket heating, adding above-mentioned dicyandiamide, water, phosphoric acid, stirred 40 minutes in 100 ℃, be cooled to 80 ℃ then and add formaldehyde, again in stirring down, keep 80 ℃ of reactions 40 minutes, just can emit material, it is the A liquid of solid content 50%.
B formula of liquid: dicyandiamide 7.5kg
Formaldehyde (36%) 8.4kg
Water 5kg
In the previous reaction still, add above-mentioned three components, under 80 ℃ of stirrings, react after 90 minutes, emit material, be the B liquid of solid content 50%.
With A liquid, B liquid separate storage, mix getting final product before using towards rare.
The technique for applying example:
A liquid 25.4kg
B liquid 20.9kg
Water 30.9kg
77.2kg(contain solid 36%)
Add water 30.9kg after above-mentioned synthetic A liquid, B liquid mixed and stir, promptly obtaining total amount is 36% for the 77.2kg(solid content) antiflaming finishing agent.
Technological process when handling the vinylon and cotton blend fabric:
Two soak and two roll → preliminary drying → bake → soap → dry
100 ℃ of 80% 100 ℃ 140 ℃ 5 ' white cat soap powder of pick-up
The 1g/l room temperature
Soap after 10 times through washing machine through the vinylon and cotton blend fabric of above-mentioned technology arrangement, still can be by the vertical combustion method test of standard GB 5455-85.
Technological process when handling COTTON FABRIC:
Padding finishing agent → preliminary drying → bake → soap → dry
100 ℃ of 80% 100 ℃ 160 ℃ 4 ' white cat soap powder of pick-up
The 1g/l room temperature
Claims (2)
1, a kind of finishing agent that cotton, polyvinyl and vinylon and cotton blend fabric are carried out flame-proof treatment is characterized in that:
A. use dicyandiamide, phosphoric acid and formaldehyde with dicyandiamide: phosphoric acid: the mol ratio of formaldehyde=1: 1: 1, the preparation methylolation guanyl-urea-phosphate aqueous solution;
B. use dicyandiamide, formaldehyde with dicyandiamide: the mol ratio of formaldehyde=1: 1, the preparation methylolation dicyandiamide aqueous solution;
C. in use with the methylolation guanyl-urea-phosphate aqueous solution for preparing,,, mix towards rare with 1: 1.5 ratio of dicyandiamide content in the liquid with the methylolation dicyandiamide aqueous solution.
2, a kind of preparation technology of antiflaming finishing agent as claimed in claim 1 is characterized in that:
A. use dicyandiamide, phosphoric acid and water to react 20～60 minutes down at 50～105 ℃, cooling then adds formaldehyde again and reacted 30～60 minutes down at 50～150 ℃, promptly obtains the methylolation guanyl-urea-phosphate aqueous solution;
B. reacted 60～120 minutes down at 50～105 ℃ with dicyandiamide, formaldehyde and water, promptly obtain the aqueous solution of methylolation dicyandiamide;
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 87101122 CN1007272B (en) | 1987-10-31 | 1987-10-31 | Preparation of fabric fire-retardant finishing agent and its application |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 87101122 CN1007272B (en) | 1987-10-31 | 1987-10-31 | Preparation of fabric fire-retardant finishing agent and its application |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1034594A CN1034594A (en) | 1989-08-09 |
| CN1007272B true CN1007272B (en) | 1990-03-21 |
Family
ID=4813201
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 87101122 Expired CN1007272B (en) | 1987-10-31 | 1987-10-31 | Preparation of fabric fire-retardant finishing agent and its application |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1007272B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107721883A (en) * | 2016-08-12 | 2018-02-23 | 宁夏天成生化科技有限公司 | Preparation method of guanylurea phosphate |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104328660B (en) * | 2014-11-19 | 2016-04-27 | 青岛大学 | A kind of preparation method of cotton response type antibacterial flame-retardant function additive |
| CN104611928A (en) * | 2015-01-07 | 2015-05-13 | 广东德美精细化工股份有限公司 | Flame-proof treatment method of pure cotton or cotton blended fabric |
| CN107675496B (en) * | 2017-09-27 | 2021-03-26 | 国铁新材(北京)科技有限公司 | Fabric flame-retardant finishing liquid, preparation method and application |
| CN109251359B (en) * | 2018-11-15 | 2021-06-01 | 广州市泰良功能高分子塑料有限公司 | Functionalized hydrotalcite and application thereof in flame-retardant antibacterial polyamide master batch |
-
1987
- 1987-10-31 CN CN 87101122 patent/CN1007272B/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107721883A (en) * | 2016-08-12 | 2018-02-23 | 宁夏天成生化科技有限公司 | Preparation method of guanylurea phosphate |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1034594A (en) | 1989-08-09 |
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