阅读说明：本技术 一种节能节水皂洗工艺 (Energy-saving and water-saving soaping process ) 是由 赵先武 张清波 吴立慧 于 2019-10-12 设计创作，主要内容包括：本发明涉及皂洗工艺技术领域,具体涉及到一种节能节水皂洗工艺。一种节能节水皂洗工艺,步骤包括：(1)将染色织物在35-45℃的水中保温5-15min,排水；(2)将上述处理后的织物继续在35-45℃水中,加入pH优化处理剂,保温5-15min,排水；(3)继续在35-45℃水中加入皂洗剂,升温至85-100℃保温10-30min,之后降温至80℃,溢流洗水,排水；(4)加45-55℃水,升温至70-85℃,保温5-15min,溢流洗水,排水；(5)最后在35-45℃水中保温5-15min,排水。(The invention relates to the technical field of soaping processes, in particular to an energy-saving and water-saving soaping process. An energy-saving and water-saving soaping process comprises the following steps: (1) keeping the dyed fabric in 35-45 deg.C water for 5-15min, and draining; (2) continuously putting the treated fabric in water of 35-45 ℃, adding a pH optimization treating agent, preserving heat for 5-15min, and draining; (3) continuously adding soaping agent into 35-45 deg.C water, heating to 85-100 deg.C, maintaining for 10-30min, cooling to 80 deg.C, overflowing washing water, and draining; (4) adding 45-55 deg.C water, heating to 70-85 deg.C, maintaining for 5-15min, overflowing washing water, and draining; (5) and finally, preserving the heat in water with the temperature of 35-45 ℃ for 5-15min, and draining.)

1. An energy-saving and water-saving soaping process is characterized by comprising the following steps:

(1) keeping the dyed fabric in 35-45 deg.C water for 5-15min, and draining;

(2) continuously putting the treated fabric in water of 35-45 ℃, adding a pH optimization treating agent, preserving heat for 5-15min, and draining;

(3) continuously adding soaping agent into 35-45 deg.C water, heating to 85-100 deg.C, maintaining for 10-30min, cooling to 80 deg.C, overflowing washing water, and draining;

(4) adding 45-55 deg.C water, heating to 70-85 deg.C, maintaining for 5-15min, overflowing washing water, and draining;

(5) and finally, preserving the heat in water with the temperature of 35-45 ℃ for 5-15min, and draining.

2. The soaping process of claim 1, wherein the bath ratio of the fabric and the water in step (1) is 1 (5-10).

3. The soaping process of claim 1, wherein the bath ratio of the fabric and the water in step (2) is 1 (5-10), and the pH-optimized treatment agent accounts for 0.5-1.5 wt% of the fabric.

4. The soaping process of claim 1, wherein the bath ratio of the fabric to the water in the step (3) is 1 (5-10), and the soaping agent accounts for 10-15 wt% of the fabric.

5. The soaping process according to claim 1, wherein the temperature increase rate and the temperature decrease rate in step (3) are 1-5 ℃/min.

6. The soaping process according to claim 1, wherein the bath ratio of the fabric to the water in the step (4) is 1 (5-10), and the temperature rising rate is 1-5 ℃/min.

7. The soaping process according to any one of claims 1-6, wherein the pH-optimized treatment agent in step (2) comprises 30-50 parts by weight of organic acid, 5-15 parts by weight of dispersant and 35-55 parts by weight of deionized water.

8. The soaping process according to any one of claims 1-6, wherein the soaping agent in step (3) comprises 60-80 parts by weight of peroxyacid salt, 12-35 parts by weight of organic acid salt and 2-8 parts by weight of inorganic base.

9. Use of the energy and water saving soaping process according to any one of claims 1-8 in textile soaping.

10. A fabric produced by the energy and water saving soaping process of any one of claims 1 to 8.

Technical Field

The invention belongs to the technical field of soaping processes, and particularly relates to an energy-saving and water-saving soaping process.

Background

In recent years, the environmental protection is becoming more and more compact, and printing and dyeing enterprises are also actively seeking environmental protection schemes with water saving, electricity saving, time saving and high efficiency, and especially when soaping is carried out after dyeing, a large amount of water resources and heat energy are consumed, for example, treatment processes of soaping a knitted fabric overflow machine cylinder, and then soaping a cheese dyeing cylinder are carried out. Therefore, the soaping method of the cotton knitted fabric is developed and improved, so that the soaping method has the advantages of simple process, low cost, small environmental pollution and stable product quality, and has very important significance.

Disclosure of Invention

In order to solve the above problems, a first aspect of the present invention provides an energy-saving and water-saving soaping process, comprising the steps of:

(1) keeping the dyed fabric in 35-45 deg.C water for 5-15min, and draining;

(2) continuously putting the treated fabric in water of 35-45 ℃, adding a pH optimization treating agent, preserving heat for 5-15min, and draining;

(3) continuously adding soaping agent into 35-45 deg.C water, heating to 85-100 deg.C, maintaining for 10-30min, cooling to 80 deg.C, overflowing washing water, and draining;

(4) adding 45-55 deg.C water, heating to 70-85 deg.C, maintaining for 5-15min, overflowing washing water, and draining;

(5) and finally, preserving the heat in water with the temperature of 35-45 ℃ for 5-15min, and draining.

As a preferable technical scheme, the bath ratio of the fabric to the water in the step (1) is 1 (5-10).

As a preferable technical scheme, the bath ratio of the fabric to the water in the step (2) is 1 (5-10), and the pH optimizing treatment agent accounts for 0.5-1.5 wt% of the fabric.

As a preferable technical scheme, the bath ratio of the fabric to the water in the step (3) is 1 (5-10), and the soaping agent accounts for 10-15 wt% of the fabric.

As a preferable technical scheme, the heating rate and the cooling rate in the step (3) are 1-5 ℃/min.

As a preferable technical scheme, the bath ratio of the fabric to the water in the step (4) is 1 (5-10), and the heating rate is 1-5 ℃/min.

As a preferable technical scheme, the pH optimization treating agent in the step (2) comprises 30-50 parts by weight of organic acid, 5-15 parts by weight of dispersant and 35-55 parts by weight of deionized water.

As a preferable technical scheme, the soaping agent in the step (3) comprises 60-80 parts of peroxyacid salt, 12-35 parts of organic acid salt and 2-8 parts of inorganic base by weight.

In a second aspect, the invention provides the use of an energy and water saving soaping process as described above in the soaping of fabrics.

In a third aspect, the invention provides a fabric prepared by the energy-saving and water-saving soaping process.

Has the advantages that: compared with the traditional method, the method of the invention saves at least two times of water and one time of high-temperature soaping, and saves time by 60-70 minutes. In addition, the pH optimization treating agent and the soaping agent are combined for use, so that the process is greatly optimized, the flow is shortened, the washing effect is greatly improved, and the fastness is high, the color fastness is not faded, and the quality is good.

Detailed Description

The technical features of the technical solutions provided by the present invention are further clearly and completely described below with reference to the specific embodiments, and the scope of protection is not limited thereto.

The words "preferred", "more preferred", and the like, in the present invention refer to embodiments of the invention that may provide certain benefits, under certain circumstances. However, other embodiments may be preferred, under the same or other circumstances. Furthermore, the recitation of one or more preferred embodiments does not imply that other embodiments are not useful, nor is it intended to exclude other embodiments from the scope of the invention.

When a range of values is disclosed herein, the range is considered to be continuous and includes both the minimum and maximum values of the range, as well as each value between such minimum and maximum values. Further, when a range refers to an integer, each integer between the minimum and maximum values of the range is included. Further, when multiple range-describing features or characteristics are provided, the ranges may be combined. In other words, unless otherwise indicated, all ranges disclosed herein are to be understood to encompass any and all subranges subsumed therein. For example, a stated range from "1 to 10" should be considered to include any and all subranges between the minimum value of 1 and the maximum value of 10. Exemplary subranges of the range 1 to 10 include, but are not limited to, 1 to 6.1, 3.5 to 7.8, 5.5 to 10, and the like.

In order to solve the above problems, a first aspect of the present invention provides an energy-saving and water-saving soaping process, comprising the steps of:

(1) keeping the dyed fabric in 35-45 deg.C water for 5-15min, and draining;

(2) continuously putting the treated fabric in water of 35-45 ℃, adding a pH optimization treating agent, preserving heat for 5-15min, and draining;

(3) continuously adding soaping agent into 35-45 deg.C water, heating to 85-100 deg.C, maintaining for 10-30min, cooling to 80 deg.C, overflowing washing water, and draining;

(4) adding 45-55 deg.C water, heating to 70-85 deg.C, maintaining for 5-15min, overflowing washing water, and draining;

(5) and finally, preserving the heat in water with the temperature of 35-45 ℃ for 5-15min, and draining.

More specifically, the steps include:

(1) adding water into the dyed fabric, keeping the water temperature at 35-45 deg.C, keeping the temperature for 5-15min, and draining;

(2) continuously adding water into the treated fabric, keeping the water temperature at 35-45 ℃, adding a pH optimization treating agent, keeping the temperature for 5-15min, and draining;

(3) continuously adding water, keeping the water temperature at 35-45 deg.C, adding soaping agent, heating water to 85-100 deg.C, maintaining the temperature for 10-30min, cooling water to 80 deg.C, overflowing washing water, and draining;

(4) adding water again, keeping the water temperature at 45-55 deg.C, heating the water to 70-85 deg.C, maintaining the temperature for 5-15min, overflowing the washing water, and draining;

(5) and finally adding water, keeping the water temperature at 35-45 ℃, preserving the heat for 5-15min, and draining.

Preferably, the bath ratio of the fabric to the water in the step (1) is 1 (5-10).

More preferably, the bath ratio of the fabric and the water in the step (1) is 1: 7.

The bath ratio as described herein refers to the ratio of the weight of the fabric to the weight of the water.

The dyed fabric is cotton knitted fabric or linen knitted fabric or cotton-linen blended fabric.

Preferably, the bath ratio of the fabric to the water in the step (2) is 1 (5-10), and the pH optimizing treatment agent accounts for 0.5-1.5 wt% of the fabric.

More preferably, the bath ratio of the fabric to the water in the step (2) is 1:7, and the pH-optimized treatment agent accounts for 1 wt% of the fabric.

As used herein, bath ratio refers to the ratio of the weight of fabric to the weight of water, and wt% refers to the weight percent.

Preferably, the bath ratio of the fabric to the water in the step (3) is 1 (5-10), and the soaping agent accounts for 10-15 wt% of the fabric.

More preferably, the bath ratio of the fabric to the water in the step (3) is 1:7, and the soaping agent accounts for 12 wt% of the fabric.

Preferably, the heating rate and the cooling rate in the step (3) are 1-5 ℃/min.

More preferably, the temperature rise rate and the temperature fall rate in the step (3) are 3 ℃/min.

Preferably, the bath ratio of the fabric to the water in the step (4) is 1 (5-10), and the heating rate is 1-5 ℃/min.

More preferably, the bath ratio of the fabric to the water in the step (4) is 1:7, and the heating rate is 3 ℃/min.

Preferably, the pH optimization treating agent in the step (2) comprises 30-50 parts by weight of organic acid, 5-15 parts by weight of dispersant and 35-55 parts by weight of deionized water.

More preferably, the pH optimization treating agent in the step (2) comprises 40-50 parts by weight of organic acid, 8-10 parts by weight of dispersant and 40-50 parts by weight of deionized water.

Organic acids

Preferably, the organic acid is selected from one or more of oxalic acid, tartaric acid, malic acid, citric acid, glycolic acid and gluconic acid.

More preferably, among the above organic acids, the organic acids include oxalic acid and citric acid in view of economic efficiency and efficiency because they have the lowest molecular weight and have strong acidity in an aqueous solution.

Still more preferably, the organic acid is oxalic acid and citric acid in a weight ratio of 1:1 is obtained by compounding.

Dispersing agent

Preferably, the dispersant comprises an emulsifier and a high molecular weight dispersant.

More preferably, the weight ratio of the emulsifier to the high molecular weight dispersant in the dispersant is (1-3): 1.

Preferably, examples of the emulsifier include nonionic surfactants, anionic surfactants, cationic surfactants and amphoteric surfactants.

More preferably, the emulsifier includes a nonionic surfactant in view of dispersion stability in the coexistence with the high molecular weight dispersant.

Further preferably, the nonionic surfactant comprises isomeric tridecanol ethers;

more preferably, the isomeric tridecanol ethers have from 5 to 7 moles of EO.

Further preferably, the nonionic surfactant further comprises dodecanedicarboxylic acid dihydrazide.

Still more preferably, the emulsifier further includes an anionic surfactant, a cationic surfactant in view of the penetrating effect to the fabric.

Still more preferably, the anionic surfactant is selected from one or more of sulfonate anionic surfactants, sulfate anionic surfactants and carboxylate anionic surfactants.

Still more preferably, the anionic surfactant is a quaternary ammonium salt type surfactant.

Most preferably, the emulsifier is obtained by compounding isomeric tridecanol ether, dodecanedicarboxylic acid dihydrazide, sodium laureth sulfate and stearyl trimethyl ammonium chloride according to the weight ratio of (2-3) to 1: 0.5.

Most preferably, the emulsifier is obtained by compounding isomeric tridecanol ether, dodecanedicarboxylic acid dihydrazide, sodium laureth sulfate and stearyl trimethyl ammonium chloride according to the weight ratio of 3:2:1: 0.5.

Preferably, the high molecular weight dispersant is amino-terminated hyperbranched polyamide with the molecular weight of 1900-2400 g/mol.

More preferably, the high molecular weight dispersant is amino-terminated hyperbranched polyamide with a molecular weight of 1900-2200g/mol, purchased from Wuhan hyperbranched resin, and the model is HyPer N103.

The pH optimizing treatment agent is adopted in the invention, and the organic acid contained in the pH optimizing treatment agent can quickly and thoroughly neutralize alkali brought by the dyeing process in the fabric. The organic acid is a compound of oxalic acid and citric acid, and the dispersant is added into the system, wherein the color fastness is the best when the amine-terminated hyperbranched polyamide is included, the inventor thinks that the acting force between the high molecular weight dispersant amine-terminated hyperbranched polyamide and the dye is larger than the acting force between the high molecular weight dispersant amine-terminated hyperbranched polyamide and the fiber in the presence of the organic acid, so that the high molecular weight dispersant amine-terminated hyperbranched polyamide is easy to be combined with dye molecules; further adding an emulsifier, and adopting isomeric tridecanol ether, dodecanedicarboxylic acid dihydrazide, sodium laureth sulfate and stearyl trimethyl ammonium chloride to permeate into the fabric, wherein the isomeric tridecanol ether (EO mole number is 5-7) is used for finding the best fastness; the inventor believes that the cationic property of the three is weakened and the binding force with the dye is reduced when the EO chain is too short, and further researches show that the fastness is best when the four is in a ratio of (2-3):1:0.5, probably because the combination of the lauryl polyoxyethylene sodium sulfate and the stearyl trimethyl ammonium chloride can stably disperse the combination of the lauryl polyoxyethylene sodium sulfate and the stearyl trimethyl ammonium chloride due to long water-soluble chain segments contained in the lauryl polyoxyethylene sodium sulfate and reduce the surface tension after the combination; in addition, the dodecane dicarboxylic acid dihydrazide is combined with the dye under the acidic condition, and can be adsorbed to the fiber to be used as a bridge bond to increase the adsorption effect of the fiber on the dye, so that the fastness is further improved.

Preferably, the soaping agent in the step (3) comprises 60-80 parts by weight of peroxyacid salt, 12-35 parts by weight of organic acid salt and 2-8 parts by weight of inorganic base.

Peroxyacid salts

Preferably, the peroxyacid salt is selected from one or more of sodium percarbonate, sodium perborate, potassium persulfate, ammonium persulfate, and sodium persulfate.

More preferably, the peroxyacid salt is obtained by compounding ammonium persulfate and potassium peroxymonosulfate according to the weight ratio of 3: 1.

Organic acid salt

The organic acid salt is a metal salt compound of an organic acid, wherein the organic acid is selected from one or more of oxalic acid, tartaric acid, malic acid, citric acid, glycolic acid and gluconic acid.

Preferably, the organic acid salt comprises sodium gluconate and sodium citrate.

Further preferably, the organic acid salt is obtained by compounding sodium gluconate and sodium citrate according to the weight ratio of (4-6) to 1.

The inventor adds the soaping agent, which can eliminate partial color of the foot water and is beneficial to sewage treatment, mainly because of the existence of peroxide salt, and the potassium peroxymonosulfate and the ammonium persulfate are compounded into peroxide salt, sodium gluconate and sodium citrate are added, the sodium gluconate is oxidized at high temperature to generate open-chain reaction, and hydrolysis reaction also exists, the oxidized sodium gluconate and aldehyde group in the sodium citrate and active amino group in the fiber are subjected to Schiff base reaction to be crosslinked to the fiber, the competitive action of the sodium citrate and the sodium gluconate promotes the release of the sodium gluconate-coated peroxyacid salt to improve the crosslinking, meanwhile, due to the fact that the dye cannot be deposited on the surface of the fiber again due to the electronic repulsion between the sodium gluconate and the sodium citrate and the anion dye in the water body after the pH optimization treatment, and when the weight ratio of the sodium gluconate to the sodium citrate is (4-6): the fastness of 1 is the best.

Inorganic base

The inorganic base is not limited, and may be any inorganic base in the art, including, but not limited to, sodium hydroxide, potassium hydroxide, sodium carbonate; sodium hydroxide is preferred.

In a second aspect, the invention provides the use of an energy and water saving soaping process as described above in the soaping of fabrics.

In a third aspect, the invention provides a fabric prepared by the energy-saving and water-saving soaping process.

The present invention will now be described in detail by way of examples, and the starting materials used are commercially available unless otherwise specified.