CN109371658B - Chemical fiber additive for pretreatment whitening of polyester waste - Google Patents
Chemical fiber additive for pretreatment whitening of polyester waste Download PDFInfo
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- CN109371658B CN109371658B CN201811156322.XA CN201811156322A CN109371658B CN 109371658 B CN109371658 B CN 109371658B CN 201811156322 A CN201811156322 A CN 201811156322A CN 109371658 B CN109371658 B CN 109371658B
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06L—DRY-CLEANING, WASHING OR BLEACHING FIBRES, FILAMENTS, THREADS, YARNS, FABRICS, FEATHERS OR MADE-UP FIBROUS GOODS; BLEACHING LEATHER OR FURS
- D06L4/00—Bleaching fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods; Bleaching leather or furs
- D06L4/60—Optical bleaching or brightening
- D06L4/607—Optical bleaching or brightening in organic solvents
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06L—DRY-CLEANING, WASHING OR BLEACHING FIBRES, FILAMENTS, THREADS, YARNS, FABRICS, FEATHERS OR MADE-UP FIBROUS GOODS; BLEACHING LEATHER OR FURS
- D06L4/00—Bleaching fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods; Bleaching leather or furs
- D06L4/60—Optical bleaching or brightening
- D06L4/657—Optical bleaching or brightening combined with other treatments, e.g. finishing, bleaching, softening, dyeing or pigment printing
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M13/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
- D06M13/50—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with organometallic compounds; with organic compounds containing boron, silicon, selenium or tellurium atoms
- D06M13/51—Compounds with at least one carbon-metal or carbon-boron, carbon-silicon, carbon-selenium, or carbon-tellurium bond
- D06M13/513—Compounds with at least one carbon-metal or carbon-boron, carbon-silicon, carbon-selenium, or carbon-tellurium bond with at least one carbon-silicon bond
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M16/00—Biochemical treatment of fibres, threads, yarns, fabrics, or fibrous goods made from such materials, e.g. enzymatic
- D06M16/003—Biochemical treatment of fibres, threads, yarns, fabrics, or fibrous goods made from such materials, e.g. enzymatic with enzymes or microorganisms
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M2101/00—Chemical constitution of the fibres, threads, yarns, fabrics or fibrous goods made from such materials, to be treated
- D06M2101/16—Synthetic fibres, other than mineral fibres
- D06M2101/30—Synthetic polymers consisting of macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- D06M2101/32—Polyesters
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M2200/00—Functionality of the treatment composition and/or properties imparted to the textile material
- D06M2200/50—Modified hand or grip properties; Softening compositions
Abstract
The invention relates to the field of chemical fiber additives, and discloses a chemical fiber additive for polyester waste pretreatment whitening, which comprises the following components in part by weight: 20-40 parts of high-efficiency degreasing agent, 20-40 parts of desizing powder, 3-5 parts of amylase, 15-25 parts of chelating dispersant, 5-4 parts of fluorescent brightener MST3, 2-4 parts of fluorescent brightener 4BK, 4-6 parts of mercerizing penetrant, 15-25 parts of foam-free alkaline oil, 10-20 parts of oxygen bleaching stabilizer, 3-5 parts of N-methyl pyrrolidone, 2-4 parts of diethylaminoethyl methacrylate, 2-4 parts of octamethylcyclotetrasiloxane, 1-3 parts of antistatic agent, 3-4 parts of bundling agent, 8-12 parts of fatty alcohol polyoxyethylene ether, 2-4 parts of alkyl diphenyl ether disulfonic acid sodium and 4-6 parts of hexamethylene diisocyanate. The auxiliary agent disclosed by the invention can effectively improve the whiteness of chemical fibers, and also has excellent stain resistance, dispersibility, alkali resistance, permeability and emulsifying capacity, and is small in damage to the fibers.
Description
Technical Field
The invention relates to the field of chemical fiber additives, in particular to a chemical fiber additive for pretreatment and whitening of polyester waste.
Background
With the update of chemical fiber products, the recovery of various polyester wastes becomes a very urgent problem, and due to the weak decomposition capability, large fiber loss, poor dispersion capability and insufficient whiteness of the obtained finished chemical fiber, the pretreatment agent adopted in the common recovery process cannot effectively recover and treat the wastes, so that the chemical fiber products with excellent quality cannot be obtained.
For example, chinese patent with application number CN201611192113.1 discloses a chemical fiber additive for pretreatment and whitening of polyester waste, which comprises the following components in parts by weight: 10-30 parts of high-efficiency degreasing agent, 10-20 parts of desizing powder, 2-5 parts of amylase, 10-20 parts of refining agent, 20-30 parts of chelating dispersant, 10-20 parts of alkaline oil, 5-15 parts of fluorescent brightener 4BK, 75-15 parts of fluorescent brightener BA-2675, 5-15 parts of fluorescent brightener MST and 2-10 parts of alkali-resistant penetrating agent. The invention claims to effectively improve the whiteness of chemical fiber products, but the inventor finds that the whitening effect can be achieved to a certain extent through practical tests, but the effect is not very ideal, and the whitening effect still needs to be further improved. And at the same time, although the auxiliary agent has whitening effect, the auxiliary agent has the defects of poor dispersing ability and large fiber loss.
Disclosure of Invention
In order to solve the technical problems, the invention provides a chemical fiber auxiliary agent for pretreatment and whitening of polyester waste, which can effectively improve the whiteness of chemical fibers and has the advantages of good dispersing ability, strong alkali resistance, strong permeability, good emulsifying ability, small fiber loss and the like.
The specific technical scheme of the invention is as follows: a chemical fiber auxiliary agent for pretreatment and whitening of polyester waste comprises the following components in parts by weight: 20-40 parts of high-efficiency degreasing agent, 20-40 parts of desizing powder, 3-5 parts of amylase, 15-25 parts of chelating dispersant, 3-5 parts of fluorescent brightener MST, 2-4 parts of fluorescent brightener 4BK, 4-6 parts of mercerizing penetrant, 15-25 parts of foam-free alkaline oil, 10-20 parts of oxygen bleaching stabilizer, 3-5 parts of N-methyl pyrrolidone, 2-4 parts of diethylaminoethyl methacrylate, 2-4 parts of octamethylcyclotetrasiloxane, 1-3 parts of antistatic agent, 3-4 parts of bundling agent, 8-12 parts of fatty alcohol polyoxyethylene ether, 2-4 parts of alkyl diphenyl ether disulfonic acid sodium and 4-6 parts of hexamethylene diisocyanate.
The chemical fiber auxiliary agent disclosed by the invention strictly selects the components and strictly limits the proportion, not only can effectively improve the whiteness of a chemical fiber product, but also has good anti-staining performance and can ensure that the chemical fiber product has a pure color, and the auxiliary agent also has strong dispersibility, alkali resistance, permeability and emulsifying capacity and has small damage to fibers; when the compositions are used together, the technical effects of synergy and '1 +1 > 2' can be achieved, and the composition is particularly suitable for the pretreatment process of polyester waste, so that high-quality chemical fiber products with high whiteness can be obtained.
The chemical fiber auxiliary agent is used for the pretreatment whitening of polyester waste, wherein the high-efficiency oil removing agent is used for removing stains on the polyester waste and has the functions of emulsifying and exuding oil stains; the desizing powder has the functions of emulsification, stripping, crushing, impurity removal and whiteness improvement; the amylase has the function of promoting the desizing action of the starch feeding and discharging powder by utilizing the high efficiency and specificity; the chelating dispersant has the functions of utilizing good dispersibility and suspension effect and simultaneously having good anti-staining performance; the fluorescent whitening agent is used as a color conditioner and has the functions of brightening and brightening; the mercerizing penetrating agent has the functions of excellent penetrating, emulsifying, dispersing and cleaning capabilities; the foam-free alkaline oil can effectively remove the flooding on various fibers, effectively prevent the dye from being deposited on the fabric again and improve the dyeing fastness; the oxygen bleaching stabilizer has strong cleaning, dispersing and stabilizing effects, and after the oxygen bleaching stabilizer is used, the fiber surface is smooth and clean, the whiteness is good, the hand feeling is soft, and the capillary effect is high and uniform; octamethylcyclotetrasiloxane acts as a softening agent; the antistatic agent is added to eliminate static electricity and has excellent emulsifying capacity and penetrating capacity; the bundling agent is used for improving the bundling property and the permeability of the fiber; the N-methyl pyrrolidone, the diethylaminoethyl methacrylate, the fatty alcohol-polyoxyethylene ether and the alkyl diphenyl ether sodium disulfonate are added for removing oil stains and playing a role in emulsification; the hexamethylene diisocyanate has the function of improving whiteness and has the function of not yellowing. The substances are integrated together, so that a synergistic effect can be achieved, and the effect that 1+1 is more than 2 is achieved.
The inventor knows that most components in the above formula are probably disclosed as chemical fiber auxiliaries in the prior art, but the inventor intends to emphasize that the inventive idea of the invention is not only to use each single component as a pretreatment of polyester waste, but also to select the most suitable component from the prior art and waste materials and to strictly limit the proportion of the components so as to achieve synergistic effect, thereby optimizing the performance of the auxiliaries to meet the requirements. This process requires a great deal of creative effort and is not achieved with a simple limited number of tests.
The reason is that specific several raw materials are selected from thousands of raw materials and the optimal proportion is limited, and the achievement of the result needs to be established on the basis of a great amount of theory and practice. Furthermore, in the research and development process of the invention, the team of the invention finds that the selection of the types of the auxiliary components and the setting of the mixture ratio of the components have an influence relationship with the comprehensive performance of the auxiliary, and because the performance of the auxiliary to be considered is more and does not show very obvious regularity, the auxiliary may have a great influence on a certain performance of the auxiliary by only slightly adjusting a certain component or mixture ratio parameter, for example, the whitening capability is adjusted well sometimes, but the emulsibility or the damage to the fiber is suddenly not met. Therefore, the research and development of the invention are carried out under the condition of no obvious regularity guide and certain 'blindness', and the invention has higher requirements on various aspects of performances of the auxiliary agent, so that the acquisition of the auxiliary agent with good comprehensive performance is extremely difficult for the ordinary technicians in the field.
In the formula of the auxiliary agent, besides the performance and the function of each component, the components are mutually coated and emulsified in a certain sequence to form a uniformly dispersed phase, so that the synergistic interaction is realized, and the technical effect that 1+1 is more than 2 is realized.
Preferably, the paint comprises the following components in parts by weight: 25-35 parts of high-efficiency degreasing agent, 25-35 parts of desizing powder, 3.5-4.5 parts of amylase, 18-22 parts of chelating dispersant, 3.5-4.5 parts of fluorescent whitening agent MST, 2.5-3.5 parts of fluorescent whitening agent 4BK, 4.5-5.5 parts of mercerizing penetrant, 18-22 parts of foamless alkaline oil, 12-18 parts of oxygen bleaching stabilizer, 3.5-4.5 parts of N-methyl pyrrolidone, 2.5-3.5 parts of diethylaminoethyl methacrylate, 2.5-3.5 parts of octamethylcyclotetrasiloxane, 1.5-2.5 parts of antistatic agent, 3.2-3.8 parts of bundling agent, 9-11 parts of fatty alcohol polyoxyethylene ether, 2.5-3.5 parts of alkyl diphenyl ether disulfonic acid sodium salt and 4.5-5.5 parts of hexamethylene diisocyanate.
As a further preference, the composition comprises, in parts by weight: 30 parts of high-efficiency degreasing agent, 30 parts of desizing powder, 4 parts of amylase, 20 parts of chelating dispersant, 4 parts of fluorescent brightener MST, 3 parts of fluorescent brightener 4BK, 5 parts of mercerizing penetrant, 20 parts of foamless alkaline oil, 15 parts of oxygen bleaching stabilizer, 4 parts of N-methyl pyrrolidone, 3 parts of diethylaminoethyl methacrylate, 3 parts of octamethylcyclotetrasiloxane, 2 parts of antistatic agent, 3.5 parts of bundling agent, 10 parts of fatty alcohol polyoxyethylene ether, 3 parts of alkyl diphenyl ether disulfonic acid sodium and 5 parts of hexamethylene diisocyanate.
The above formulations are the most preferred formulations.
Preferably, the mercerizing penetrating agent is phosphate diester.
Preferably, the oxygen bleaching stabilizer is an oxygen bleaching stabilizer A01.
Preferably, the sizing agent is higher fatty acid diethanolamine salt.
Preferably, the high-efficiency oil remover is high-efficiency oil remover HS-101D or high-efficiency oil remover DK 808.
Preferably, the chelating dispersant is a chelating dispersant AA-MA-ALS or a chelating dispersant TF-133F.
Preferably, the amylase is a mesophilic alpha amylase.
Preferably, the foam-free kansui oil is a foam-free kansui oil NP-2.
Compared with the prior art, the invention has the beneficial effects that: the chemical fiber auxiliary agent disclosed by the invention strictly selects the components and strictly limits the proportion, not only can effectively improve the whiteness of a chemical fiber product, but also has good anti-staining performance and can ensure that the chemical fiber product has a pure color, and the auxiliary agent also has strong dispersibility, alkali resistance, permeability and emulsifying capacity and has small damage to fibers; when the compositions are used together, the technical effects of synergy and '1 +1 > 2' can be achieved, and the composition is particularly suitable for the pretreatment process of polyester waste, so that high-quality chemical fiber products with high whiteness can be obtained.
Detailed Description
The present invention will be further described with reference to the following examples.
General examples
A chemical fiber auxiliary agent for pretreatment and whitening of polyester waste comprises the following components in parts by weight: 20-40 parts of high-efficiency degreasing agent, 20-40 parts of desizing powder, 3-5 parts of amylase, 15-25 parts of chelating dispersant, 3-5 parts of fluorescent brightener MST, 2-4 parts of fluorescent brightener 4BK, 4-6 parts of mercerizing penetrant, 15-25 parts of foam-free alkaline oil, 10-20 parts of oxygen bleaching stabilizer, 3-5 parts of N-methyl pyrrolidone, 2-4 parts of diethylaminoethyl methacrylate, 2-4 parts of octamethylcyclotetrasiloxane, 1-3 parts of antistatic agent, 3-4 parts of bundling agent, 8-12 parts of fatty alcohol polyoxyethylene ether, 2-4 parts of alkyl diphenyl ether disulfonic acid sodium and 4-6 parts of hexamethylene diisocyanate.
Preferably, the mercerizing penetrating agent is phosphate diester. The oxygen bleaching stabilizer is an oxygen bleaching stabilizer A01. The bundling agent is higher fatty acid diethanol amine salt. The high-efficiency oil removing agent is high-efficiency oil removing agent HS-101D or high-efficiency oil removing agent DK 808. The chelating dispersant is AA-MA-ALS or TF-133F. The amylase is moderate temperature alpha amylase. The foam-free kansui oil is foam-free kansui oil NP-2.
Example 1
A chemical fiber auxiliary agent for pretreatment and whitening of polyester waste comprises the following raw materials in parts by weight: 20 parts of high-efficiency degreasing agent HS-101D, 20 parts of desizing powder, 3 parts of medium-temperature alpha amylase, 15 parts of chelating dispersant AA-MA-ALS, 3 parts of fluorescent brightener MST, 2 parts of fluorescent brightener 4BK, 4 parts of mercerizing penetrant diester phosphate, 215 parts of foamless alkaline oil NP, 0 part of oxygen bleaching stabilizer A011, 3 parts of N-methyl pyrrolidone, 2 parts of diethylaminoethyl methacrylate, 2 parts of octamethylcyclotetrasiloxane, 1 part of antistatic agent, 3 parts of bundling agent higher fatty acid diethanol amine salt, 8 parts of fatty alcohol polyoxyethylene ether, 2 parts of alkyl diphenyl ether disulfonic acid sodium and 4 parts of hexamethylene diisocyanate.
The preparation method of the chemical fiber auxiliary agent in the embodiment 1 comprises the following steps: firstly, heating the high-efficiency oil removing agent to 70 ℃, sequentially adding N-methyl pyrrolidone, diethylaminoethyl methacrylate, sodium alkyl diphenyl ether disulfonate and fatty alcohol-polyoxyethylene ether, starting stirring, and slowly and sequentially adding a chelating dispersant, foamless alkaline oil and a mercerizing penetrating agent. After the desizing powder is uniformly dispersed, adding medium-temperature alpha amylase, desizing powder, fluorescent whitening agent and hexamethylene diisocyanate, and finally adding an oxygen bleaching stabilizer, an antistatic agent, octamethylcyclotetrasiloxane and a bundling agent.
Example 2
A chemical fiber auxiliary agent for pretreatment and whitening of polyester waste comprises the following raw materials in parts by weight: the high-efficiency degreasing agent comprises, by weight, 80825 parts of a high-efficiency degreasing agent, 25 parts of desizing powder, 3.5 parts of medium-temperature alpha amylase, 18 parts of a chelating dispersant TF-133F, 3.5 parts of a fluorescent brightener MST, 2.5 parts of a fluorescent brightener 4BK, 4.5 parts of a mercerizing penetrant phosphoric diester, 218 parts of a non-foaming alkaline oil NP, 2 parts of an oxygen bleaching stabilizer A0112, 3.5 parts of N-methyl pyrrolidone, 2.5 parts of diethylaminoethyl methacrylate, 2.5 parts of octamethylcyclotetrasiloxane, 1.5 parts of an antistatic agent, 3.2 parts of a bundling agent, high-grade fatty acid diethanol amine salt, 9 parts of fatty alcohol polyoxyethylene ether, 2.5 parts of alkyl diphenyl ether disulfonic acid sodium and 4.5 parts of hexamethylene diisocyanate.
The preparation method of the chemical fiber auxiliary agent of the embodiment is the same as that of the embodiment 1.
Example 3 (best mode)
A chemical fiber auxiliary agent for pretreatment and whitening of polyester waste comprises the following raw materials in parts by weight: 30 parts of high-efficiency degreasing agent HS-101D, 30 parts of desizing powder, 4 parts of medium-temperature alpha amylase, 20 parts of chelating dispersant AA-MA-ALS, 4 parts of fluorescent brightener MST, 3 parts of fluorescent brightener 4BK, 5 parts of mercerizing penetrant diester phosphate, 220 parts of foamless alkaline oil NP, 5 parts of oxygen bleaching stabilizer A011, 4 parts of N-methyl pyrrolidone, 3 parts of diethylaminoethyl methacrylate, 3 parts of octamethylcyclotetrasiloxane, 2 parts of antistatic agent, 3.5 parts of bundling agent higher fatty acid diethanol amine salt, 10 parts of fatty alcohol polyoxyethylene ether, 3 parts of alkyl diphenyl ether disulfonic acid sodium and 5 parts of hexamethylene diisocyanate.
The preparation method of the chemical fiber auxiliary agent of the embodiment is the same as that of the embodiment 1.
Example 4
A chemical fiber auxiliary agent for pretreatment and whitening of polyester waste comprises the following raw materials in parts by weight: the high-efficiency degreasing agent comprises, by weight, 35 parts of high-efficiency degreasing agent DK 80835, 4.5 parts of medium-temperature alpha amylase, 22 parts of chelating dispersant AA-MA-ALS, 4.5 parts of fluorescent brightener MST, 3.5 parts of fluorescent brightener 4BK, 5.5 parts of mercerizing penetrant phosphoric diester, 222 parts of non-foaming alkaline oil NP-222, 0118 parts of oxygen bleaching stabilizer A, 4.5 parts of N-methyl pyrrolidone, 3.5 parts of diethylaminoethyl methacrylate, 3.5 parts of octamethylcyclotetrasiloxane, 2.5 parts of antistatic agent, 3.8 parts of bundling agent higher fatty acid diethanol amine salt, 11 parts of fatty alcohol polyoxyethylene ether, 3.5 parts of alkyl diphenyl ether disulfonic acid sodium and 5.5 parts of hexamethylene diisocyanate.
The preparation method of the chemical fiber auxiliary agent of the embodiment is the same as that of the embodiment 1.
Example 5
A chemical fiber auxiliary agent for pretreatment and whitening of polyester waste comprises the following raw materials in parts by weight: the high-efficiency degreasing agent comprises, by weight, 40 parts of desizing powder, 5 parts of medium-temperature alpha amylase, 25 parts of chelating dispersant AA-MA-ALS, 5 parts of fluorescent brightener MST, 4 parts of fluorescent brightener 4BK, 6 parts of mercerizing penetrant diester phosphate, 6 parts of foamless alkaline oil NP-225, 0 part of oxygen bleaching stabilizer A0120 part of N-methyl pyrrolidone, 4 parts of diethylaminoethyl methacrylate, 4 parts of octamethylcyclotetrasiloxane, 3 parts of antistatic agent, 4 parts of beaming agent higher fatty acid diethanol amine salt, 12 parts of fatty alcohol polyoxyethylene ether, 4 parts of alkyl diphenyl ether disulfonic acid sodium and 6 parts of hexamethylene diisocyanate.
The preparation method of the chemical fiber auxiliary agent of the embodiment is the same as that of the embodiment 1.
Comparative example 1
Adopting the auxiliary agents in the background technology: 20 parts of high-efficiency degreasing agent, 15 parts of desizing powder, 3.5 parts of amylase, 15 parts of refining agent, 25 parts of chelating dispersant, 15 parts of alkaline oil, 4BK10 parts of fluorescent whitening agent, BA-26710 parts of fluorescent whitening agent, 10 parts of fluorescent whitening agent MST and 6 parts of alkali-resistant penetrating agent.
Comparative example 2 (the components are the same as in example 1, and the proportion of part of the components is out of the scope of the claims)
A chemical fiber auxiliary agent for pretreatment and whitening of polyester waste comprises the following raw materials in parts by weight: 50 parts of high-efficiency degreasing agent HS-101D, 20 parts of desizing powder, 6 parts of medium-temperature alpha amylase, 30 parts of chelating dispersant AA-MA-ALS, 3 parts of fluorescent brightener MST, 2 parts of fluorescent brightener 4BK, 8 parts of mercerizing penetrant diester phosphate, 215 parts of foamless alkaline oil NP, 0 part of oxygen bleaching stabilizer A011, 3 parts of N-methyl pyrrolidone, 2 parts of diethylaminoethyl methacrylate, 2 parts of octamethylcyclotetrasiloxane, 1 part of antistatic agent, 3 parts of bundling agent higher fatty acid diethanol amine salt, 8 parts of fatty alcohol polyoxyethylene ether, 2 parts of alkyl diphenyl ether disulfonic acid sodium and 4 parts of hexamethylene diisocyanate.
The preparation method of the chemical fiber auxiliary agent of the embodiment is the same as that of the embodiment 1.
Comparative example 3 (the components are the same as in example 1, and the proportion of part of the components is out of the scope of the claims)
A chemical fiber auxiliary agent for pretreatment and whitening of polyester waste comprises the following raw materials in parts by weight: 10 parts of high-efficiency degreasing agent HS-101D, 20 parts of desizing powder, 1 part of medium-temperature alpha amylase, 10 parts of chelating dispersant AA-MA-ALS, 3 parts of fluorescent brightener MST, 2 parts of fluorescent brightener 4BK, 2 parts of mercerizing penetrant diester phosphate, 215 parts of foamless alkaline oil NP, 0 part of oxygen bleaching stabilizer A011, 3 parts of N-methyl pyrrolidone, 2 parts of diethylaminoethyl methacrylate, 2 parts of octamethylcyclotetrasiloxane, 1 part of antistatic agent, 3 parts of bundling agent higher fatty acid diethanol amine salt, 8 parts of fatty alcohol polyoxyethylene ether, 2 parts of alkyl diphenyl ether disulfonic acid sodium and 4 parts of hexamethylene diisocyanate.
The preparation method of the chemical fiber auxiliary agent of the embodiment is the same as that of the embodiment 1.
Comparative example 4 (partial component replacement with similar functional substance)
A chemical fiber auxiliary agent for pretreatment and whitening of polyester waste comprises the following raw materials in parts by weight: the high-efficiency degreasing agent comprises, by weight, 20 parts of a high-efficiency degreasing agent JL-9020 parts, 20 parts of desizing powder, 3 parts of medium-temperature alpha amylase, 115 parts of a chelating dispersant CD-115 parts, 3 parts of a fluorescent brightener MST, 2 parts of a fluorescent brightener 4BK, 4 parts of a mercerizing penetrant diester phosphate, 215 parts of a foamless alkaline oil NP-215 part, 0 part of an oxygen bleaching stabilizer A011, 3 parts of N-methyl pyrrolidone, 2 parts of diethylaminoethyl methacrylate, 2 parts of octamethylcyclotetrasiloxane, 1 part of an antistatic agent, 3 parts of a bundling agent higher fatty acid diethanol amine salt, 8 parts of fatty alcohol polyoxyethylene ether, 2 parts of alkyl diphenyl ether disulfonic acid sodium and 4 parts of hexamethylene diisocyanate.
The preparation method of the chemical fiber auxiliary agent of the embodiment is the same as that of the embodiment 1.
Comparative example 5 (partial component was replaced with a similar functional substance)
A chemical fiber auxiliary agent for pretreatment and whitening of polyester waste comprises the following raw materials in parts by weight: the high-efficiency degreasing agent comprises, by weight, 20 parts of a high-efficiency degreasing agent JL-9020 parts, 20 parts of desizing powder, 15 parts of medium-temperature amylase TL-1213 parts, a chelating dispersant AA-MA-ALS, 3 parts of a fluorescent brightener MST, 2 parts of a fluorescent brightener 4BK, 4 parts of a mercerizing penetrant fatty alcohol-polyoxyethylene ether, 215 parts of a non-foaming alkaline oil NP, 0 part of an oxygen bleaching stabilizer A011, 3 parts of N-methyl pyrrolidone, 2 parts of diethylaminoethyl methacrylate, 2 parts of octamethylcyclotetrasiloxane, 1 part of an antistatic agent, 3 parts of a bundling agent high-grade fatty acid diethanolamine salt, 8 parts of fatty alcohol-polyoxyethylene ether, 2 parts of alkyl diphenyl ether disulfonic acid sodium and 4 parts of hexamethylene diisocyanate.
The preparation method of the chemical fiber auxiliary agent of the embodiment is the same as that of the embodiment 1.
Comparative example 6
The chemical fiber auxiliary formula of the comparative example is consistent with that of example 3, and the difference is that the added components are in different orders when the auxiliary is prepared:
the preparation method of the chemical fiber auxiliary agent of the comparative example 6 comprises the following steps: firstly, heating the high-efficiency oil removing agent to 70 ℃, starting stirring, and slowly and sequentially adding medium-temperature alpha amylase, desizing powder, fluorescent whitening agent, hexamethylene diisocyanate, N-methyl pyrrolidone, diethylaminoethyl methacrylate, alkyl diphenyl ether disulfonic acid sodium, fatty alcohol-polyoxyethylene ether, chelating dispersant, foamless alkaline oil and mercerizing penetrating agent. And finally adding an oxygen bleaching stabilizer, an antistatic agent, octamethylcyclotetrasiloxane and a bundling agent.
Comparative example 7
The chemical fiber auxiliary formula of the comparative example is consistent with that of example 3, and the difference is that the added components are in different orders when the auxiliary is prepared:
firstly, heating the high-efficiency oil removing agent to 70 ℃, sequentially adding N-methyl pyrrolidone, diethylaminoethyl methacrylate, sodium alkyl diphenyl ether disulfonate and fatty alcohol-polyoxyethylene ether, stirring, adding medium-temperature alpha amylase, desizing powder, fluorescent brightener and hexamethylene diisocyanate, and then adding a chelating dispersant, foamless alkaline oil and a mercerizing penetrant. After the desizing powder is uniformly dispersed, adding the desizing powder, and finally adding the oxygen bleaching stabilizer, the antistatic agent, the octamethylcyclotetrasiloxane and the bundling agent.
Comparison of Performance
The polyester waste is pretreated by the chemical fiber auxiliary agents of examples 1-5 and comparative examples 1-7, and the weight ratio of the chemical fiber auxiliary agent to the polyester waste is 7: 100.
As can be seen from the above table, the selection of the types of the components of the auxiliary agent, the setting of the proportion among the components, and the order of adding the components have certain influence on the comprehensive performance of the auxiliary agent. It is known from comparative examples 1 to 5 that the whiteness of the fiber is improved to a certain extent with the increase of the contents of the components such as the high-efficiency oil removing agent, desizing powder, chelating dispersant and the like, but the emulsibility, alkali resistance, permeability and color-blocking resistance are reduced, and the comprehensive performance of example 3 is better as the best proposal. As can be seen from comparison of example 1 and comparative examples 2 and 3, the whiteness of the fiber was improved to some extent as the contents of the high-efficiency oil removing agent, amylase, chelating dispersant and the like were increased, but the loss of the fiber strength was increased, and the emulsifiability, alkali resistance, permeability and discoloration resistance were decreased to some extent; comparing example 1 with comparative examples 4 and 5, it can be seen that the types of the components selected in the examples are superior to the conventional formulation; comparing example 1 with comparative examples 6 and 7, it is known that the oil removing agent, the emulsifier, the dispersant and the catalyst are added first to improve the dispersibility and emulsibility of the oil agent, the reaction is rapid, and the whiteness of the fiber can be rapidly improved within a certain period of time.
The raw materials and equipment used in the invention are common raw materials and equipment in the field if not specified; the methods used in the present invention are conventional in the art unless otherwise specified.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and all simple modifications, alterations and equivalents of the above embodiments according to the technical spirit of the present invention are still within the protection scope of the technical solution of the present invention.
Claims (4)
1. A chemical fiber auxiliary agent for pretreatment whitening of polyester waste is characterized in that: comprises the following components in parts by weight: high-efficiency degreasing agent HS-101D or DK 80820-40 parts, desizing powder 20-40 parts, medium-temperature alpha amylase 3-5 parts, chelating dispersant AA-MA-ALS or TF-133F 15-25 parts, fluorescent brightener MST3-5 parts, fluorescent brightener 4BK 2-4 parts, mercerizing penetrant phosphoric acid diester 4-6 parts, non-foam alkaline oil 15-25 parts, oxygen bleaching stabilizer A0110-20 parts, 3-5 parts of N-methyl pyrrolidone, 2-4 parts of diethylaminoethyl methacrylate, 2-4 parts of octamethylcyclotetrasiloxane, 1-3 parts of an antistatic agent, 3-4 parts of a bundling agent, namely higher fatty acid diethanolamine salt, 8-12 parts of fatty alcohol-polyoxyethylene ether, 2-4 parts of alkyl diphenyl ether disulfonic acid sodium and 4-6 parts of hexamethylene diisocyanate;
the preparation method of the chemical fiber auxiliary agent comprises the following steps: firstly, heating the high-efficiency oil removing agent to 70 ℃, sequentially adding N-methyl pyrrolidone, diethylaminoethyl methacrylate, sodium alkyl diphenyl ether disulfonate and fatty alcohol-polyoxyethylene ether, starting stirring, and slowly and sequentially adding a chelating dispersant, foamless alkaline oil and a mercerizing penetrating agent; after the desizing powder is uniformly dispersed, adding medium-temperature alpha amylase, desizing powder, fluorescent whitening agent and hexamethylene diisocyanate, and finally adding an oxygen bleaching stabilizer, an antistatic agent, octamethylcyclotetrasiloxane and a bundling agent.
2. The chemical fiber auxiliary agent for the pretreatment whitening of polyester waste as claimed in claim 1, which comprises the following components in parts by weight: high-efficiency degreasing agent HS-101D or DK 80825-35 parts, desizing powder 25-35 parts, medium-temperature alpha amylase 3.5-4.5 parts, chelating dispersant AA-MA-ALS or TF-133F 18-22 parts, fluorescent brightener MST 3.5-4.5 parts, fluorescent brightener 4BK 2.5-3.5 parts, mercerizing penetrant phosphoric acid diester 4.5-5.5 parts, non-foam alkaline oil 18-22 parts, oxygen bleaching stabilizer A0112-18 parts, 3.5-4.5 parts of N-methyl pyrrolidone, 2.5-3.5 parts of diethylaminoethyl methacrylate, 2.5-3.5 parts of octamethylcyclotetrasiloxane, 1.5-2.5 parts of antistatic agent, 3.2-3.8 parts of beaming agent higher fatty acid diethanol amine salt, 9-11 parts of fatty alcohol polyoxyethylene ether, 2.5-3.5 parts of alkyl diphenyl ether disulfonic acid sodium salt and 4.5-5.5 parts of hexamethylene diisocyanate.
3. The chemical fiber auxiliary agent for the pretreatment whitening of polyester waste as claimed in claim 2, which comprises the following components in parts by weight: the high-efficiency degreasing agent comprises HS-101D or DK 80830 parts, desizing powder 30 parts, medium-temperature alpha amylase 4 parts, chelating dispersant AA-MA-ALS or TF-133F 20 parts, fluorescent brightener MST 4 parts, fluorescent brightener 4BK 3 parts, mercerizing penetrant diester phosphate 5 parts, non-foaming alkaline oil 20 parts, oxygen bleaching stabilizer A0115 parts, N-methyl pyrrolidone 4 parts, diethylaminoethyl methacrylate 3 parts, octamethylcyclotetrasiloxane 3 parts, antistatic agent 2 parts, bundling agent higher fatty acid diethanol amine salt 3.5 parts, fatty alcohol polyoxyethylene ether 10 parts, alkyl diphenyl ether disulfonic acid sodium 3 parts and hexamethylene diisocyanate 5 parts.
4. The chemical fiber assistant for pretreatment whitening of polyester wastes according to claim 1, 2 or 3, wherein the kansui oil is kansui oil NP-2.
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