CN104652143A - Reductive cleansing agent and preparation method thereof - Google Patents

Abstract

The invention discloses a reduction cleaning agent and a preparation method thereof, and relates to the technical field of textile dyeing and finishing, and is characterized in that: calculated in parts by weight, it includes 5-20 parts of wetting agent, 2-15 parts of dispersing agent, 25 parts of ～50 parts of reducing agent, 40～60 parts of deionized water. The reduction cleaning agent in the present invention has high monomer selectivity, simple process, easy control of the production process, excellent reduction cleaning performance, water saving, time saving, safe storage, convenient operation and no irritation, etc., and produces good economical cleaning agent. and social benefits.

Description

A kind of reducing cleaning agent and preparation method thereof

Technical field:

The invention relates to the technical field of textile dyeing and finishing, in particular to a reduction cleaning agent and a preparation method thereof.

Background technique:

Polyester is the most widely used synthetic fiber and is usually dyed with disperse dyes. Disperse dyes are non-polar small molecules with very low hydrophilicity, and it is impossible to wash off the floating color on the surface of polyester by conventional methods such as water washing. At present, sodium hydrosulfite is mainly used as a reducing agent for reduction cleaning, and sodium hydrosulfite is a spontaneous combustion chemical with a strong pungent smell, which is very harmful to the human body. When sodium hydrosulfite and soda ash are used for reduction cleaning, it is easy to produce difficult to handle Sewage, and requires a large amount of water to wash, which consumes a lot of energy. After washing, it is necessary to add acid to neutralize, resulting in a waste of resources.

At present, there are many types of reducing cleaning agents for disperse dyes in the market. Researchers have carried out a lot of research on this type of technology. For example, patent CN 101845761 A discloses an acid reducing cleaning agent. The preparation method of this acid reducing cleaning agent mainly uses B Amine reacts with carbon disulfide to generate N, N'-diethylthiourea, and then compound fatty alcohol polyoxyethylene ether to form an acidic reducing cleaning agent. However, N, N'-diethylthiourea is used as an acid reduction cleaning agent, and the color fastness is limited; secondly, the final products of decomposition are SO ₂ and NO _X , which will pollute the environment to a certain extent.

Patent application publication number CN 102808340 A discloses a stable liquid reduction cleaning agent after disperse dyeing, mainly including formaldehyde sulfoxylate dihydrate and sodium salt of formaldehyde sulfoxylate dihydrate, alkaline earth metal hydroxide, nitrogen-containing organic base, Compound of anionic and nonionic surfactants, deionized water. The reaction time of this auxiliary agent is longer during synthesis, and the process is more complicated. At the same time, formaldehyde cannot be completely removed during preparation.

There are also articles reporting a weakly alkaline reducing cleaning agent ECO, the main component of which is a sulfinic acid derivative, which is anionic, but unstable and easily oxidized to sulfonic acid.

Invention content:

Aiming at the above-mentioned problems in the prior art, the first object of the present invention is to provide a reducing cleaning agent with high monomer selectivity, low preparation cost, simple preparation process, excellent performance and less environmental pollution.

In order to achieve the above object, the technical scheme adopted in the present invention is:

A reducing cleaning agent, characterized in that: calculated in parts by weight, it includes 5-20 parts of wetting agent, 2-15 parts of dispersing agent, 25-50 parts of reducing agent, and 40-60 parts of deionized water .

The further setting of the present invention is:

The reducing cleaning agent comprises 8-15 parts of wetting agent, 8-12 parts of dispersing agent, 25-40 parts of reducing agent and 33-59 parts of deionized water.

Preferably, the wetting agent is at least one of alkyl alcohol polyoxyethylene ether or fatty amine polyoxyethylene ether.

Preferably, the alkyl alcohol polyoxyethylene ether is linear tridecyl polyoxyethylene ether 1350, linear tridecyl polyoxyethylene ether 1370, linear tridecyl polyoxyethylene ether 1380, isomeric At least one of triol polyoxyethylene ether 1350, isomeric tridecyl alcohol polyoxyethylene ether 1370, and isomeric tridecyl alcohol polyoxyethylene ether 1380.

The fatty amine polyoxyethylene ether is fatty amine polyoxyethylene ether AC1200, fatty amine polyoxyethylene ether AC1210, fatty amine polyoxyethylene ether AC1205, fatty amine polyoxyethylene ether AC1801, fatty amine polyoxyethylene ether AC1802, At least one of fatty amine polyoxyethylene ether AC1810, fatty amine polyoxyethylene ether AC1812, fatty amine polyoxyethylene ether AC1815, fatty amine polyoxyethylene ether AC1816, fatty amine polyoxy fatty amine polyoxyethylene ether AC1820.

Described dispersant is sodium dodecylbenzene sulfonate, dodecyl dimethyl benzyl ammonium chloride, hexadecyl dimethyl benzyl ammonium chloride, octadecyl dimethyl benzyl ammonium At least one of ammonium chloride and sodium alkylsulfonate.

The reducing agent is at least one of plant acid, citric acid, glucose, sucrose, ammonium butyrate and glycine.

The purpose of the second aspect of the present invention is to provide a preparation method of reducing cleaning agent, which is characterized in that: adding wetting agent and dispersant to deionized water, stirring and heating up to 50-100 ° C, heat preservation 20- 50min, until the wetting agent is completely dissolved, lower the temperature to 30-60°C, add the reducing agent, stir and keep warm for 20-50min, until it is completely dissolved, and obtain the reducing cleaning agent.

Preferably, the preparation method of the reduction cleaning agent is to add wetting agent and dispersant to deionized water, stir and raise the temperature to 70°C, start to keep warm for 20min until the wetting agent is completely dissolved, and then cool down to 40°C. ℃, add reducing agent, stir and keep warm for 25 minutes, until completely dissolved, and reduce cleaning agent is obtained.

The beneficial effects produced by the present invention are as follows:

1. The reducing cleaning agent of the present invention has simple raw materials and low manufacturing cost. Compared with the existing reducing cleaning agents, it has good stability, is convenient for storage, has no precipitation when placed, is odorless, and has little environmental pollution.

2. The reduction cleaning agent of the present invention is easy to use, and the pH value of the fabric does not need to be adjusted after dyeing, and the reduction cleaning agent of the present invention is directly added to the dyeing residue for post-dyeing treatment, eliminating the need for draining before traditional reduction cleaning , Washing program, low energy consumption, easy to operate. the

3. The reducing cleaning agent of the present invention is used when applied to disperse dyeing, and has good washing fastness and rubbing fastness.

4. The preparation method of the reducing cleaning agent of the present invention is simple in process and convenient in operation, and can be used as it is prepared, and can also be configured as a finished product for standby use, thereby reducing the preparation cost.

The content of the present invention will be further described below in conjunction with specific embodiments.

Detailed ways:

Example 1

Add 10g of isotridecyl alcohol polyoxyethylene ether 1370 and 10g of dodecylbenzenesulfonic acid sodium salt into 40g of deionized water for stirring, slowly raise the temperature to 80°C, and start to keep warm for 20min until the isomeric tridecyl alcohol polyoxyethylene Dissolve vinyl ether 1370 completely, then lower the temperature to 50°C, add 40g of phytic acid, stir and keep it warm for 25min until it is completely dissolved to obtain a reducing cleaning agent.

Example 2:

Add 15g of isotridecyl alcohol polyoxyethylene ether 1380 and 8g of dodecyl dimethyl benzyl ammonium chloride into 42g of deionized water, stir and raise the temperature to 70°C, and start to keep warm for 25min until the isotridecyl alcohol The polyoxyethylene ether 1380 was completely dissolved; then, the temperature was lowered to 40°C, 35g of glucose was added, stirred and kept for 30 minutes until completely dissolved, and the reduction cleaning agent was obtained.

Example 3:

Add 8g of fatty amine polyoxyethylene ether AC1205 and 12g of hexadecyldimethylbenzyl ammonium chloride into 45g of deionized water, stir and raise the temperature to 70°C, and start to keep warm for 20min until the fatty amine polyoxyethylene ether AC1205 Completely dissolve; then, lower the temperature to 40°C, add 35g of sucrose, stir and keep warm for 20min until completely dissolved, and obtain a reducing cleaning agent.

Example 4:

Add 10g of fatty amine polyoxyethylene ether AC1801 and 15g of octadecyldimethylbenzyl ammonium chloride into 45g of deionized water, stir and raise the temperature to 90°C, and start to keep warm for 20min until the fatty amine polyoxyethylene ether AC1801 Completely dissolve; then, lower the temperature to 30°C, add 30g of glycine, stir and keep warm for 35min until completely dissolved, and obtain a reducing cleaning agent.

Example 5:

Add 15g of fatty amine polyoxyethylene ether AC1802 and 8g of octadecyldimethylbenzyl ammonium chloride into 42g of deionized water, stir and raise the temperature to 60°C, and start to keep warm for 50min until the fatty amine polyoxyethylene ether AC1802 Completely dissolve; then, lower the temperature to 30°C, add 35g of glucose, stir and keep warm for 50min until completely dissolved, and obtain a reducing cleaning agent.

Embodiment 6:

Add 15g of fatty amine polyoxyethylene ether AC1810 and 8g of sodium alkylsulfonate into 42g of deionized water, stir and raise the temperature to 50°C, and start to keep warm for 50min until the fatty amine polyoxyethylene ether AC1810 is completely dissolved; then, cool down to At 40°C, add 35g of citric acid, stir and keep it warm for 30min, until it is completely dissolved, to obtain a reducing cleaning agent.

Embodiment 7:

Add 15g of fatty amine polyoxyethylene ether AC1812 and 8g of sodium alkylsulfonate into 42g of deionized water, stir and raise the temperature to 70°C, and start to keep warm for 30min until the fatty amine polyoxyethylene ether AC1812 is completely dissolved; then, cool down to At 40°C, add 35g of ammonium butyrate, stir and keep it warm for 25min until it is completely dissolved to obtain a reducing cleaning agent.

Embodiment 8:

Add 15g of fatty amine polyoxyethylene ether AC1815 and 8g of cetyl dimethyl benzyl ammonium chloride into 42g of deionized water, stir and raise the temperature to 70°C, and start to keep warm for 20min until the fatty amine polyoxyethylene ether AC1815 Dissolve completely; then, lower the temperature to 40°C, add 35g of citric acid, stir and keep warm for 25min until completely dissolved, and obtain a reducing cleaning agent.

Embodiment 9:

Add 15g of fatty amine polyoxyethylene ether AC1816 and 8g of dodecyl dimethyl benzyl ammonium chloride into 42g of deionized water, stir and raise the temperature to 70°C, and start to keep warm for 20min until the fatty amine polyoxyethylene ether AC1816 is completely Dissolve; then, lower the temperature to 40°C, add 35g of ammonium butyrate, stir and keep warm for 25min until completely dissolved to obtain a reducing cleaning agent.

Example 10:

Add 15g of aliphatic amine polyoxyaliphatic amine polyoxyethylene ether AC1820 and 8g of sodium dodecylbenzenesulfonate into 42g of deionized water, stir and raise the temperature to 70°C, and start to keep warm for 20min until the fatty amine polyoxyethylene ether AC1820 is completely dissolved; then, cool down to 40°C, add 35g of ammonium butyrate, stir and keep it warm for 25min until it is completely dissolved to obtain a reducing cleaning agent.

Example 11:

Add 15g of linear tridecyl alcohol polyoxyethylene ether 1350 and 8g of dodecylbenzenesulfonic acid sodium salt into 42g of deionized water, stir and raise the temperature to 70°C, and start to keep warm for 20min until the linear tridecyl alcohol polyoxyethylene Vinyl ether 1350 was completely dissolved; then, the temperature was lowered to 40°C, 35g of ammonium butyrate was added, stirred and kept for 25 minutes until completely dissolved, and the reduced cleaning agent was obtained.

Example 12:

Add 15g of isomerized tridecanol polyoxyethylene ether 1350 and 8g of cetyldimethylbenzyl ammonium chloride into 42g of deionized water, stir and raise the temperature to 70°C, and start to keep warm for 20min until the isomerized tridecanol Alcohol polyoxyethylene ether 1350 was completely dissolved; then, the temperature was lowered to 40°C, 35g of plant acid was added, stirred and kept for 25min until completely dissolved, and the reducing cleaning agent was obtained.

Example 13:

Stir together 10g of fatty amine polyoxyethylene ether AC1200, 10g of octadecyldimethylbenzyl ammonium chloride and 40g of deionized water and slowly raise the temperature to 70°C. Dissolve, then lower the temperature to 40°C, add 40g of phytic acid, stir and keep warm for 25min until completely dissolved to obtain a reducing cleaning agent.

Example 14:

Stir together 10g of fatty amine polyoxyethylene ether AC1812, 10g of sodium alkylsulfonate and 40g of deionized water and slowly raise the temperature to 70°C, and start to keep warm for 20min until the fatty amine polyoxyethylene ether AC1812 is completely dissolved, then cool down to 40°C ℃, add 40g of glucose, stir and keep warm for 25min, until completely dissolved, to obtain a reducing cleaning agent.

Application examples 1-14:

Above-mentioned embodiment 1-14 is made reduction cleaning agent, carries out performance test, and test method is as follows:

1. Use the following process to restore and clean polyester fabrics:

Disperse dyeing and washing→lower temperature reduction cleaning (80℃×20min)→water washing→drying.

Use a high-temperature and high-pressure machine to dye polyester fabrics. After cooling down, add the reduction cleaning agents in Examples 1-14 respectively, adjust the mass ratio of reduction cleaning agents to fabrics to 10-20:1, and act at a temperature of 80°C for 20 minutes. The fabric is washed and dried.

2. Use the national standard GB/T 251-1995 to evaluate the discoloration and staining fastness of the fabric, and use the rubbing fastness according to GB/T 3920-1997. The results are shown in Table 1.

Comparative example:

1. Use the traditional hydrosulfite and soda ash method for reduction cleaning. The process flow is as follows:

Disperse dyeing → washing → reduction cleaning (85℃×20min)→water washing→acid neutralization→soaping (95℃×10min)→water washing→drying.

2. Use the national standard GB/T 251-1995 to evaluate the discoloration and staining fastness of the fabric, and use the rubbing fastness according to GB/T 3920-1997. The results are shown in Table 1.

From the technical point of view, the reduction cleaning agent of the present invention is used for reduction cleaning, and it can be directly cleaned without removing the residue in the dye solution, without acid neutralization and soaping processes, which greatly reduces the process cost of reduction cleaning after dyeing. Reduced sewage discharge and reduced energy consumption.

Table 1 uses embodiment 1-14 and comparative example to carry out the fastness performance after reduction cleaning

Reduction cleaning agent discoloration wet friction dry friction Polyester staining comparative example 4 4-5 4-5 3-4 Example 1 4 4-5 5 4 Example 2 4 4-5 5 4 Example 3 4 5 4-5 4 Example 4 4-5 4-5 5 4-5 Example 5 4-5 5 5 4 Example 6 4-5 5 5 4 Example 7 4 5 5 4 Example 8 5 5 5 4 Example 9 4-5 4-5 4-5 4 Example 10 4 4-5 4-5 4 Example 11 4 5 4-5 4 Example 12 4-5 5 5 4 Example 13 4-5 5 4-5 4 Example 14 4-5 4-5 5 4

As can be seen from Table 1, after the products of application examples 1-14 and the traditional reducing agent hydrosulfite are reduced and cleaned under the same amount of conditions, the measured dry and wet rubbing fastness and color change washing fastness are equivalent or slightly excellent Compared with sodium hydrosulfite, the dyeing grade of polyester is obviously better than hydrosulfite. The new type of cleaning agent has the characteristics of water saving, time saving, safe storage, convenient operation and non-irritating.

Claims (9)

1. a reduction cleaner, is characterized in that: calculate by weight, comprises the wetting agent of 5 ~ 20 parts, the dispersant of 2 ~ 15 parts, the reductant of 25 ~ 50 parts, the deionized water of 40 ~ 60 parts.

2. a kind of reduction cleaner according to claim 1, is characterized in that: described reduction cleaner comprises the wetting agent of 8 ~ 15 parts, the dispersant of 8 ~ 12 parts, the reductant of 25 ~ 40 parts, the deionized water of 33 ~ 59 parts.

3. a kind of reduction cleaner according to claim 1 and 2, is characterized in that: described wetting agent is at least one of alkyl alcohol ethoxylates or aliphatic amine polyoxyethylene ether.

4. a kind of reduction cleaner according to claim 3, is characterized in that: described alkyl alcohol ethoxylates is at least one in straight chain tridecanol polyoxyethylene ether 1350, straight chain tridecanol polyoxyethylene ether 1370, straight chain tridecanol polyoxyethylene ether 1380, isomerous tridecanol polyoxyethylene ether 1350, isomerous tridecanol polyoxyethylene ether 1370, isomerous tridecanol polyoxyethylene ether 1380.

5. a kind of reduction cleaner according to claim 3, is characterized in that: described aliphatic amine polyoxyethylene ether is at least one in aliphatic amine polyoxyethylene ether AC1200, aliphatic amine polyoxyethylene ether AC1210, aliphatic amine polyoxyethylene ether AC1205, aliphatic amine polyoxyethylene ether AC1801, aliphatic amine polyoxyethylene ether AC1802, aliphatic amine polyoxyethylene ether AC1810, aliphatic amine polyoxyethylene ether AC1812, aliphatic amine polyoxyethylene ether AC1815, aliphatic amine polyoxyethylene ether AC1816, fatty amine polyoxy aliphatic amine polyoxyethylene ether AC1820.

6. a kind of reduction cleaner according to claim 1 and 2, is characterized in that: described dispersant is at least one in pelopon A, dodecyl dimethyl benzyl ammonium chloride, cetalkonium chloride, stearyl dimethyl benzyl ammonium chloride, sodium alkyl sulfonate.

7. a kind of reduction cleaner according to claim 1 and 2, is characterized in that: described reductant is at least one in plant acid, citric acid, glucose, sucrose, butyric acid ammonia, glycine.

8. the preparation method of the reduction cleaner of one of claim 1-7, it is characterized in that: wetting agent and dispersant are joined in deionized water, carry out stirring and being warmed up to 50-100 DEG C, insulation 20-50min, until wetting agent dissolves completely, is cooled to 30-60 DEG C, add reductant, stir insulation 20-50min, until dissolve completely, obtained reduction cleaner.

9. the preparation method of a kind of reduction cleaner according to claim 8, it is characterized in that: wetting agent and dispersant are joined in deionized water, carry out stirring and be warmed up to 70 DEG C, start to be incubated 20min, until wetting agent dissolves completely, be cooled to 40 DEG C, add reductant, stir insulation 25min, until dissolve completely, obtained reduction cleaner.