KR20060002681A - Flame retardant treated cotton fabrics with thpc/hmm resin by ecomerce pad roller system - Google Patents

Abstract

The present invention is a flame retardant composed of an organic phosphate compound, hexametholol melamine resin, phosphoric acid, and a wet penetrant, so that when the flame retardant is processed by mercerization in the same device, it can be generated in the processed fabric after the cotton fabric flame retardant processing after the production process. It is possible to solve the shortcomings related to the decrease in tensile strength, change in color, and durability of flame retardant through the present invention, and to improve product quality. According to the present invention, the swelling agent and the wet penetrating agent is added during the flame retardant process to maximize the microstructure of the fiber to facilitate the penetration of the flame retardant to form molecular crosslinking bonds with the hydroxyl group of the cotton fiber to maximize the flame retardancy, after the flame retardant of the cotton fiber It is possible to prevent the deterioration of washability and tensile strength, and use a small amount of Triton solution to smoothly improve the feel of cotton fabric, and to maintain the low shrinkage after washing and the inherent gloss of cotton fabric. Another important feature of the present invention is a continuous treatment to prevent the change of color by drying the cylinder continuously after the flame retardant pad treatment. In addition, the processing agent is water absorbent, and after drying the cylinder immediately cured to fix the characteristics of the present invention can be maximized.

Ecomercer, Pad, Flame Retardant, Mercer, Shrink, Fastness, Tensile Strength, Curing

Description

Flame retardant treated Cotton Fabrics with THPC / HMM Resin by ECOMERCE PAD ROLLER SYSTEM} Treated Phosphorus-Based Compound and Hexametholol Melamine Resin by Eco-mercer Pad Roller

1 is a method by the general flame retardant pad roller

2 is a process chart of the process by the pad, mercer roller belonging to the present invention

Figure 3 is a partial cross-sectional view of the method by the pad, Mercer rollers belonging to the present invention

4 is a partial cross-sectional view of the method by the pad, squeegeeing roller to which the present invention pertains.

<Description of the code | symbol about the principal part of drawing>

1: Fabric input part

2: immersion pad body

3: guide roller

4: driving device

4-1: Automatic Control Device

5: drive chain

6: Lower pad roller

7: upper squeegeeing roller

8-1, 8-2: Mercerized Bathtub

8-3, 8-4, 8-5: 1st flameproof bath

9: pad roller

10: second flame retardant bathtub

11: squeegee roller

12: rubber squeeze roller

13: drying cylinder

14: gas heat medium curing machine

15: fabric sending part

16: salt

17: processed fabric

The present invention relates to two lower pad rollers (6-6) by a pad roller device for mixing the flame retardant with a binder by the method of a gravure roller used in waterproofing, water repellent processing machines, printing machines, and the like. 1, 6-2) and the squeegee by the upper squeegee rollers (7-1, 7-2) and compressed to immerse the flame retardant solution immersed in the flame retardant bath (8-3). The chlorine to which the flameproof liquid is attached is folded and stacked by a folding machine via a drying cylinder (11), and then transferred to another process. On the other hand, the method by ammonia curing is also proposed. For example, according to the manufacturing method of the manufacturing method of Albright Wilson of England, a flame retardant is immersed by a pad roller, and then aged and fixed with an ammonia solution for flame retardant processing. The method of fixing the stained solution with the flameproof solution to the aqueous ammonia solution may cause large-scale accidents due to air pollution and explosion due to gas generation during evaporation of ammonia, and ammonia gas may cause problems in terms of workability and safety. there was. Another method of flame retardant processing is the need for expensive equipment in the mercerization apparatus having over 50 trillion guide rollers in one series, and the troublesomeness and process of flame retardant treatment by the flame retardant processing facility again. There is a tricky. There are economic burdens on many facilities, and the size of the installation should be very large, and the labor cost is very large, and the need for frequent replacement of the flame retardant and the loss of flame retardant is required.

In addition, in the conventional pad processing apparatus, there is no supplementary countermeasure for treating the non-uniformity caused by the imbalance between the tainted material 16 and the pad roller 6 due to the one-time pad treatment method. The drug is buried in a short time by the rotation of the surface of the guide roller only once, so that sufficient flame-retardant is not absorbed, and the supply device must be controlled according to the change of the rotation speed, and the control device equipped with the control program accordingly There was a problem such as a need, and after washing with water, the flameproof durability tends to be inferior.

According to the present invention, by attaching a plurality of processing agent supply apparatuses such as flame retardant processing agents and mercerization processing pharmaceuticals, the operation timing between the supply apparatuses of the processing chemical solutions, that is, the processing of two kinds of processing agents The supply conditions for drugs are controlled according to the operating conditions of the machine, so that the proper supply of drugs minimizes the consumption of unnecessary drugs and the generation of waste water, and the general processing method is only two squeezing in a short immersion time and a short pad time. As it is made by rollers, the surface of the fabric is unevenly absorbed due to the wear of the roller surface, resulting in non-uniform absorption over the entire width of the fabric. It may cause life loss and economic loss. In addition, the conventional processing method allows simple drying by hot air drying. As a result, the flame retardant is not completely adhered and is only treated through a drying process, resulting in a decrease in flameproof durability due to a heterogeneous dry state and combined reaction with oxygen in the atmosphere.

The purpose of the present invention is to provide a sufficient flame resistance by giving a small amount of flame retardant by post-processing flame retardant method, but the washing resistance is strictly regulated, and children's pajamas according to the US standard DOC FF 3-71 50 It is required to be flame retardant after meeting washing. Since a high washing resistance is required, a large amount of flame retardant must be treated on most garments, which has a disadvantage in that the touch is bad. Reactive organophosphorus compound is mainly used as a durable flame retardant for cellulose fibers, and it takes a reaction form which forms a crosslink with a hydroxyl group. However, the appearance and the physical properties of the fabric is severely deteriorated and bad washing resistance appeared to be a problem to the durable flameproof processing method of the cotton fabric to be treated by the present invention. Flame retardant treatment using THPC and HMM resin in combination with HMM, that is, hexamethol melamine resin in the presence of phosphoric acid catalyst, mainly by pad-dry-curing method. have. In order to increase the flame retardancy by increasing the durability of flame retardant and nitrogen content in the treated fabric, HMM resin, an aminoplast resin, is used. As it is used for clothing and interior decoration, the flame retardant fabric should not only be flame retardant but also have excellent moisture characteristics such as hygroscopicity, absorbency and moisture permeability, and should have excellent washing durability without deteriorating its physical properties. In addition, the physical properties of the flame retardant fabric are affected by the conditions such as the amount of catalyst used, the treatment conditions, the type and ratio of the preparation, etc. According to the present invention, after the flame retardant treatment with THPC, wet fixation is performed with HMM resin. Although it is excellent in flame retardancy, the process is inconvenient and there is a lot of loss of chemicals. In the case of flame-retardant cotton fabrics, the strength of the treated fabric is decreased, and the hygroscopicity and touch are deteriorated. Flameproof processing by dry-curing method is because the crosslinking is formed in the fiber in a state where the fiber is broken in the drying process before the flame retardant forms the crosslinking in the fiber. Therefore, in the present invention, in order to improve the strength and wearability of the processed fabric, the fabric can be swelled to open the microstructure of the cotton fiber and maintain the swollen state during the crosslinking so that the crosslinking is uniformly formed in the fiber so that the tension can be smoothly distributed. Using 400 grams / liter of organic phosphate compound (THPC) and 40 grams / liter of hexametholol melamine (HMM) resin, the flame retardant, humectant, and phosphate catalyst were fixed in the optimum condition. It is applied by wet fixation method using fire treatment and swelling agent, and can be treated simultaneously with flame retardant processing and mercer processing. Using flame retardant and nucleometholamine (HMM) resin as the main component of such polymer phosphate, 95-100% of water washing at 50 ℃ (60 ℃) and 90% of flame retardant even after 10 dry cleanings, Flame retardant test results by 45 ° micro burner method showed excellent results after washing, 1 second of residual time, 0 seconds of residual time, 6.5cm of carbonization distance, grade 3 or higher. The effect of flame retardant concentration on washing fastness, friction fastness and color difference was tested. When the concentration of 40% was used, excellent results of 4-5 grade fastness and color difference showed less than 5 results. Flame retardancy by the 45 ° microburner method according to the change of the phosphoric acid catalyst concentration was excellent flame retardancy when using a 1-3% concentration of phosphoric acid.

The sample used in the present invention is cotton fabric 20 water / 20 water, density 65 x 56 / inch, using 450 grams of chlorinated salt, and flame retardant THPC organophosphate flame retardant 400 grams / liter, phosphoric acid (85%) 25 grams / liter of catalyst, 30 grams / liter of silicon, 40 grams / liter of hexametholol melamine resin, an aminoplast resin that increases flame resistance by increasing the durability of flame retardant and nitrogen content of treated fabric, Penetrants were tested using 50 grams / liter of Triton, a nonionic surfactant.

First, the mercurized bath (8-1, 8-2) in the lower pad roller (6-1, 6-2) process of dipping and supplying the chlorine (16) supplied to open the microstructure of the cotton fiber. Immersed in 0.05% Triton solution for 2 minutes at, followed by mercerization to proceed to the upper squeegeeing roller (7--1, 7-2), and lower pad roller (5-3, 5-4, 5-5). It is padded and pressed by the upper squeegeeing rollers (8-3, 8-4, 8-5) to contact the flameproof baths (8-3, 8-4, 8-5) at a pickup rate of 75%-80%. Through the process, the flame retardant and mercerization process are simultaneously performed, and a swelling agent is added to the secondary flame retardant bath (10) so that the pick-up ratio is 75% to 80% (11) and the rubber squeezing roller (12) It is a method of padding by preliminary drying at 120 ° C. for 2 minutes in a drying cylinder 13, and then adhering the heat treatment curing at 185 ° C. for 2 minutes in a gas heating medium curing machine 14.

EXAMPLE

Embodiments of the method according to the present invention will be described with reference to the drawings. Also, description will be made using FIG. 2 so that the contents of the present invention can be easily understood.

The chlorine (16) is transported by the guide roller (3) and flame retardant from the lower pad roller (6-1) to the roller of (6-5) in the immersion pad main body (2) according to the operation time of the device. The application of the flame retardant and triton solution to sufficiently apply the immersion and the pads through the pad, the operation starts at the beginning and is applied to the chlorine from the lower pad roller (6-1) to be absorbed. The lower pad roller (6-1, 6-2) absorbs the triton solution from the mercerized bath (6-1, 6-2) in the immersion pad body (2) in which the triton solution is stored. It consists of a roller squeezed at (7-1, 7-2). The lower pad rollers (6-1, 6-2, 6-3, 6-4, 6-5) are the upper squeegee rollers (7-1, 7-2, 7-3, 7-4, 7- 5) are arranged in opposition. The pad device 6-1, 6-2, 6-3, 6-4, 6-5 generally shows a roll coating configuration, but the method of applying the flame retardant is characterized by the characteristics of the flame retardant used. Other coating devices, such as a knife coater, can be used depending on the conditions of the thickness of the stain and the absorption power.

Flame retardant is used as a phosphorus compound (THPC), and organic phosphate-based flame retardant is a reactive flame retardant with cotton fiber. There is a problem in that the concentration of the solution must be increased because the flame retardancy may be caused by a defect, but the method of the present invention can solve such problems by having a sufficient absorption force by continuously running a plurality of pads and squeegeeing rollers. There are features that can be.

With this configuration, cotton fabrics run at low speed at a speed of 20 to 23 meters per minute, so the lower pad roller (6-3, 6-4, 6-5) and upper squeegee roller (7- 3, 7-4, 7-5), the flame retardant is sufficiently absorbed by the chlorine (1) traveling on the surface of the roller, and the sticking reaction occurs by the hexamethol melamine (HMM) resin. The inner structure is opened to be mercerized and the swelling penetrant is treated in parallel to completely fix the flame retardant in the fiber molecules to form a film. The surface of the rollers is the lower pad rollers (6-1, 6-2, 6-3, 6-4, 6-5) and the upper squeegee rollers (7-1, 7-2, 7-3, 7-4). , 7-5) is made of stainless steel to ensure uniform application of flame retardant. In addition, the running speed of the tainted object and the rotational speed of the roller are determined by the type, thickness, and physical properties of the tainted material. In some cases, it is controlled according to the structure and pattern of the to-be-contaminated material, and forms an optimal flame retardant coating layer in the above situation. In addition, once the circumference of the chlorine passage, that is, the outer circumference of the pad roller 4-1, is only displayed once on the surface of the chlorine, or several times the lower pad roller (6-1, 6-2, 6-3, 6-4, 6-5), that is, the outer circumferential surface of the lower pad rollers (6-1, 6-2, 6-3, 6-4, 6-5), It is processed into a system that can control the device depending on the need for contact.

The structure and composition of the flame retardant by this apparatus are demonstrated.

Composition of flame retardant: organophosphate flame retardant 400 grams / liter, swelling penetrant 2 grams / liter

Phosphoric Acid (85%) Catalyst 25 grams / liter, Softener 30 grams / liter

40 grams / liter of hexametholol melamine resin,

Mercer Processing Solution: Triton 50 g / liter

The following describes the treatment of the flame retardant and the contaminant after processing.

In general, in the printing machine, the tainted material 16 applied by the pad part 6 is delivered to the cylinder dryer 13 of the present device, folded in a predetermined folding width, and sent out of the device. In addition, it is directly guided to the gas heating medium Curing Machine (14) without passing through the cylinder dryer (13). In either case, the chlorine is applied in contact with a fixed pad roller (6), but in general, the flame retardant is dried by the drying cylinder (13) in front of the curing machine (14) and the chlorine (16) is applied. Since the adsorption is carried out in the c), the chlorinated substance 16 hardly chemically reacts with oxygen in the air. Therefore, the final part of the pad roller part 6 to be processed is not limited to the pad roller located at the lowermost side of all the pad rollers 6-1, 6-2, 6-3, 6-4, 6-5. Do not. Of the pad rollers 6-1, 6-2, 6-3, 6-4, and 6-5 used for the above-described products, the pad rollers 6-5 located on the lower side are final. In FIG. 3, the first embodiment shows that the flame retardant of the chlorine material after passing through the final pad roller 6-5 to be treated of the apparatus is absent, for example, pad rollers 6-1, 6-2, 6-3, 6-4, 6-5) and the contact surface of the chlorine (16) to prevent inappropriate phenomenon. In the second embodiment of the present invention, the dead cylinder (9), the squeegeeing roller (11) and the rubber squeegeeing roller (12) after passing through the final pad roller (12) to be processed the drying cylinder (13) After passing through the gas heating medium curing machine (14), it is wound in a batch and processed. The third embodiment is pressed by a squeezing roller (9) and a rubber squeezing roller (12) after passing through the final pad roller (9) of the machine and passed through the drying cylinder (13) with no force at 120 ° C. Allow to dry for 2 minutes. At temperatures above 130 ° C, color transfer may occur. The drying cylinder 13 is a heat medium cylinder device which dries the flame retardant applied to the toner 16. The dyeing material (16) batched through the drying cylinder (13) is one of the most important processes of flame retardant treatment of cotton fabric through the process of passing through the gas heating medium curing machine (14). It should be adjusted so that it can be dried by heat treatment for 2 minutes. The treated fabric was adjusted in a ratio of liquid ratio 1: 5 by a jiggering method, drained after 4 turns at 20-30 ° C. in a 3 gram / liter caustic soda solution in a water rinse 1 bath, and 2 grams / liter caustic in a water wash 2 bath. After 4 rounds of 60-70 ℃ in Oda solution, drain water, wash 80 ℃ 2 turns in 3rd bath, wash 4, 5 ℃ in hot tub, and wash with cold water in 6th bath. Must be adjusted to weak alkali bath (PH: 8). Washing should be done within 2 hours after curing to prevent oxidation.

After washing with water, the chlorine is dried and expanded at low speed at 185 ° C. with no tension through a dryer.

Looking at the effect of the present invention by the above method,

1. Changes in the internal structure of the mercerized flame retardant fabric significantly increased the amount of flame retardant, and as the amount increased, the flame retardancy of the cotton fabric increased.

2. The washing resistance is improved by the swelling agent and the mercerization treatment, and the flame retardant washing durability is excellent, in which the residual amount of the flame retardant remains 95% to 100% even after 50 washes.

2. Increasing tensile strength by introducing swelling agent treatment and mercerization treatment.

3. Mercerization increases the volume and increases elasticity and compressive recovery.

4. As the amount of attached flame retardant increased, the temperature at which pyrolysis occurred at the highest rate decreased and the amount of residual oxide increased.

In the course of the present invention, by combining the mercerization treatment of the cotton fabric and the wet flame prevention method, the present invention appeared to be the optimum processing conditions for preventing the increase of flame retardancy and change of physical properties.

Claims (3)

In the construction of the machine for flame retardant treatment, the dye-impregnated unit 1, the guide roller 3, the pad immersion main body 2, and the driving device 4 are introduced to the dye immersion body. Mercerization process by the lower pad rollers 6-1 and 6-2 and the upper squeegee rollers 7-1 and 7-2 while contacting the pad roller part 6-1 mounted on the lower part of the The first flame retardant bath (7-4) by the lower pad roller (6-4, 6-5) and the upper squeegee roller (7-4, 7-5). -3, 7-4, 7-5), flame retardant treatment is carried out, and then continuously run through the guide roller to absorb the flame retardant by the pad roller (9) of the second flame retardant bath (10). After being squeezed sufficiently through the quenching roller (11) and the rubber squeezing roller (12), it is transferred to the cylinder dryer (13) through the guide roller. Processed by preliminary drying followed by a complete fixation process in a gas heating medium curing machine (14). Organophosphate flame retardant (THPC) 350-400 grams / liter, hexametholol melamine resin (HMM) 10% of flame retardant, phosphoric acid (85%) catalyst 25 grams / liter, softener 30 grams / liter, triton solution 0.05% Method to penetrate the fiber internal structure completely at the same time as mercerization treatment in combination with. The method of claim 1, wherein the immersion of the primary flame retardant bath using 0.2% of the penetrant triton solution to open the internal structure of the fiber and 3% of the phosphoric acid (85%) catalyst using 1-3% of the silicone-based softener, After the pad roller is passed through the pad roller (9) in the secondary flame retardant bath (10), and the cylinder is dried, the method of final fixing of the flame retardant is maintained at 185 ° C. by directly contacting the surface of the dye to be processed by the gas heat transfer cure machine. .

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