CN101338514A

CN101338514A - High performance cold rolling stack scouring agent and preparation method

Info

Publication number: CN101338514A
Application number: CNA2008100634139A
Authority: CN
Inventors: 金东辉
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-08-07
Filing date: 2008-08-07
Publication date: 2009-01-07

Abstract

The invention provides a high-performance cold pad-batch scouring agent and its preparation method, which is characterized in that its structure molecular formula is CH-O(EO)n(PO)m-H, and it has the following formulation: 1mol of R(R')CH-O(EO)n(PO)m-H, 1-1.2mol of maleic anhydride, 0.05-1% of catalyst-composite organic acid by weight, 1-1.2mol of anhydrous sodium sulfite; the preparation method comprises an esterification reaction comprising adding low carbon alcohol EO/PO polyether, maleic anhydride and catalyst into a reactor, stirring and heating in nitrogen, timely sampling and measuring acid value until reaction termination; and a sulphonation reaction comprising reacting the resultant of the esterification reaction with sodium sulfite solution, adding nitrogen, stirring and heating to temperature of 40-85 DEG C until reaction termination when sulphonation rate variation is less than 0.5% per hour. The scouring agent of the invention can be resistant to high-concentration alkali liquor, make scouring and bleaching liquor permeate quickly, has good emulsification and dispersion ability, and good ability to adsorb or solubilize decomposed reaction product, thereby the scoured and bleached cloth acquires good capillary effect and whiteness.

Description

High performance cold rolling stack scouring agent and preparation method

Technical field

The invention belongs to the auxiliary agent technical field that cold-rolling heap printing and dyeing pretreating technology uses, be specifically related to a kind of high performance cold rolling stack scouring agent and preparation method.

Background technology

Cold-rolling heap printing and dyeing pretreating technology is to move back, boil, float three process with traditional, at ambient temperature, the preprocessing technical method of merging into a bath and carrying out, this technology has that process route is short, equipment is simple, energy consumption is little, is fit to advantages such as small lot, many kinds demand, particularly has tangible effect to removing faults such as the wrinkle that are prone in the traditional handicraft, scratch, crimping.Cold rolling stack scouring agent is exactly the important auxiliary agent that is used for the cold-pad-batch preparation process.Cold-pad-batch process is compared with common process, and temperature is low, the alkali concn height, and alkali oxygen liquid is difficult more to the infiltration of cotton grey cloth, and particularly the emulsifying capacity to grease, wax is low under the low temperature; Therefore, require very high to cold rolling stack scouring agent.The normally multi-component compound of existing cold rolling stack scouring agent, main component is: anion surfactant, non-ionic surface active agent, neutral electrolyte and chelating agent etc.; By the cooperative effect of surfactant, reach good scouring result.But existing cold rolling stack scouring agent is often because alkaline-resisting permeability deficiency, and the emulsifying capacity to grease, wax under the low temperature is not enough, and causing processing cloth, whiteness, capillary effect inside and outside in the limit to occur inconsistent, so that produce the aberration problem that is difficult to overcome in the dyeing.

Therefore, in the development of cold rolling stack scouring agent prescription, selecting the excellent permeation stabilizing agent is the scouring and bleaching important key of success or failure of cold rolling heap.It must have the high high alkali liquid of ability, make the liquid rapid osmotic of scouringing and bleaching, the good emulsifying dispersibility is arranged, the good product of a decomposing absorption or the ability of solubilising, with other compounding aid actings in conjunction, make that the fabric after scouringing and bleaching obtains good capillary effect, whiteness.

Main some isomery alcohol phosphate ester salts or this analog anion surfactants of isomery alcohol sulfate selected is as main alkaline-resisting infiltration component in the conventional cold rolling stack scouring agent prescription.Isomery alcohol claims the Gu Aibei Extra Old again, and general structural formula is: R (R ')-CH-CH2-OH, in the formula: R is the straight chained alkyl of 8-20 carbon atom, R ' is the straight chained alkyl of 1-10 carbon atom.This two analog anion surfactants all exist single component alkali resistance still can, but be re-dubbed after the cold rolling stack scouring agent the not good enough shortcoming of comprehensive cold rolling heap scouring result.And isomery alcohol phosphate ester salt form also can residual a part of Phos, unfavorable to environment.

Summary of the invention

The objective of the invention is to provide a kind of high performance cold rolling stack scouring agent and preparation method, it synthesizes the anion surfactant of sulfosuccinic acid monoesters disodium salt structure with low-carbon alcohols EO/PO polyethers, efficiently permeate the main efficient alkaline-resisting component of scouring agent as cold rolling heap, make it have the high high alkali liquid of ability, make the liquid rapid osmotic of scouringing and bleaching, the good emulsifying dispersibility is arranged, the good product of a decomposing absorption or the ability of solubilising, with other compounding aid actings in conjunction, make that the fabric after scouringing and bleaching obtains good capillary effect, whiteness.

Above-mentioned goal of the invention is achieved through the following technical solutions, a kind of high performance cold rolling stack scouring agent, its main points are that its structural molecule formula is R (R ') CH-O (EO) n (PO) m-H, and in the molecular formula: R is the straight chained alkyl of 2-7 carbon atom, and R ' is the straight chained alkyl of 0-2 carbon atom; N=0-5; M=0-5.

Above-mentioned high performance cold rolling stack scouring agent, its prescription is as follows:

R(R’)CH-O(EO)n(PO)m-H 1mol

Maleic anhydride 1-1.2mol

Catalyst-composite organic acid is by gross mass 0.05-1%

Anhydrous sodium sulfite 1-1.2mol

A kind of preparation method of high performance cold rolling stack scouring agent, its main points are that synthetic reaction divides two steps: esterification: low-carbon alcohols EO/PO polyethers, cis-butenedioic anhydride and catalyst are added in the reactor, feed nitrogen, stir and be heated to 50-80 ℃ of temperature, timing sampling is measured acid number, in KOH, change to be considered as the esterification terminal point to acid number less than 1mg/h; Carry out sulfonating reaction then: the sodium sulfite solution that will prepare in advance joins in the reactor, carry out the sulfonating reaction operation, stir behind the logical nitrogen and be heated to 40--85 ℃ of temperature, timing sampling is also tested sulphonation rate, changes less than 0.2-0.5% per hour being considered as reaction end until sulphonation rate.

The present invention has following advantage:

(1) single component is alkaline-resisting can reach not floating oil of 200-250g/LNaOH, and alkaline-resisting permeability in the alkaline-resisting 200g/L permeability of 1--2g/L consumption less than 30 seconds, be suitable as very much the main efficient alkaline-resisting component that cold rolling heap efficiently permeates scouring agent.

(2) low-carbon alcohols EO/PO has the character of solvent, can have good dissolving ability to grease, wax at low temperatures, the product of decomposing in the cold rolling heap process is also had the ability of absorption or solubilising.

(3) anion surfactant of this structure has possessed the duplex surface chemical property of non-ionic surface active agent and anion surfactant, have good washing, emulsification, dispersion, solubilising, performance such as wetting, and action temperature and, little to skin and eye irritation, easily biological-degradable; With other compounding aid actings in conjunction, make that the fabric after scouringing and bleaching obtains good capillary effect, whiteness.

The specific embodiment

High performance cold rolling stack scouring agent embodiment:

A kind of high performance cold rolling stack scouring agent, its structural molecule formula are R (R ') CH-O (EO) n (PO) m-H, and in the molecular formula: R is the straight chained alkyl of 3 carbon atoms, and R ' is the straight chained alkyl of 1 carbon atom; N=3; M=4.

Its prescription: R (R ') CH-O (EO) n (PO) m-H, in the molecular formula: R is the straight chained alkyl of 3 carbon atoms, R ' is the straight chained alkyl n=3 of 1 carbon atom; M=4 1mol

Maleic anhydride 1mol

Catalyst-composite organic acid is by 0.5% of gross mass

Anhydrous sodium sulfite 1.1mol

The preparation method embodiment of high performance cold rolling stack scouring agent:

A kind of preparation method of high performance cold rolling stack scouring agent, synthetic reaction is divided two steps: esterification: low-carbon alcohols EO/PO polyethers, cis-butenedioic anhydride and catalyst are added in the reactor, feed nitrogen, stir and be heated to 60-70 ℃ of temperature, every 1 hour sampling and measuring acid number, in KOH, change to be considered as the esterification terminal point to acid number less than 1mg/h; Carry out sulfonating reaction then, the sodium sulfite solution for preparing is in advance joined in the reactor, carry out the sulfonating reaction operation, stir and be added to 50--60 ℃ of temperature behind the logical nitrogen, every sampling in 1 hour and test sulphonation rate, change less than per hour 0.5% being considered as reaction end until sulphonation rate.

Claims

1. high performance cold rolling stack scouring agent, the structural molecule formula that it is characterized in that it are R (R ')-CH-O (EO) n (PO) m-H, and in the molecular formula: R is the straight chained alkyl of 2-7 carbon atom, and R ' is the straight chained alkyl n=0-5 of 0-2 carbon atom; M=0-5.

2. will be according to the described high performance cold rolling stack scouring agent of claim 1, it is as follows to it is characterized in that filling a prescription:

R(R’)CH-O(EO)n(PO)m-H 1mol

Maleic anhydride 1-1.2mol

Catalyst-composite organic acid is by gross mass 0.05-1%

Anhydrous sodium sulfite 1-1.2mol.

3. the preparation method of a high performance cold rolling stack scouring agent, it is characterized in that synthetic reaction divides two steps: esterification: low-carbon alcohols EO/PO polyethers, cis-butenedioic anhydride and catalyst are added in the reactor, feed nitrogen, stir and be heated to 50-80 ℃ of temperature, timing sampling is measured acid number, in KOH, change to be considered as the esterification terminal point to acid number less than 1mg/h; Carry out sulfonating reaction then: the sodium sulfite solution that will prepare in advance joins in the reactor, carry out the sulfonating reaction operation, stir behind the logical nitrogen and be heated to 40--85 ℃ of temperature, timing sampling is also tested sulphonation rate, changes less than 0.2-0.5% per hour being considered as reaction end until sulphonation rate.