CN103243582A - Acidic levelling agent and preparation method thereof - Google Patents

Abstract

The invention discloses an acidic levelling agent and a preparation method thereof, which are characterized in that the acidic levelling agent is composed of the following components in percentage by weight: 3-8% of polyvinylpyrrolidone (PVP-30), 5-15% of dodecyl dimethyl betaine (BS-12), 5-15% of fatty alcohol-polyoxyethylene ether (peregal O-20), 4-15% of sodium alcohol ether sulphate (AES), and the balance of water; and the preparation method comprises the following steps of: 1, weighting half of the water required in the formula, and adding the water into a reaction kettle; 2, sequentially adding the raw materials into the reaction kettle to stir according to the formula, wherein when each raw material is added, an operation of stirring is performed for15-20 minutes; and 3, adding the rest of water required in the formula, stirring the obtained mixture, standing the mixture, and filtering and then discharging the obtained product. According to the invention, through selecting different types of raw materials, an acidic dye levelling agent which is wide in applicability and good in effect, especially a levelling agent used when chinlon is dyed by using an acid dye, is compounded, so that the easy occurrence of dyeing defects, colored patches and strip defects when chinlon is dyed by using an acid dye is reduced.

Description

A kind of acid levelling agent and preparation method

Technical field

The invention belongs to the textile printing and dyeing industry production field, be specifically related to a kind of acid levelling agent and preparation method.

Background technology

Nylon fibre has ABRASION RESISTANCE and good springiness, and intensity height, density is little, do not crease easily, anti-mould mothproof, fatigue resistance is good, and higher hygroscopicity, in synthetic fiber, occupy critical role, nylon fibre is polyamide structure, molecule is made up of three parts, namely constitute the methene chain of hydrophobic part in the molecule, the amido link of possess hydrophilic property and the amino of the end of the chain and carboxyl, particularly relevant with dyeing in the polyamide fibre molecular structure is a terminal amino group content that dyes as polyamide fibre, the amino content of polyamide fibre 6 and polyamide fibre 66 is respectively 1/10～1/20 of wool, because amino content is low, dyeing saturation value is low, piece together when dying, because affinity difference, it is particularly outstanding to compete to dye phenomenon between dyestuff, the dyestuff that affinity is big is seized limited amino, repel the little dyestuff of affinity, cause the color and luster difference that the coloured differently time obtains, be prone to specking, the look flower, barriness etc. influence the defect of dyeing quality, the nylon dyeing saturation value is lower, compete the problem of dying more than solving, improve the spreadability of dyeing, except select the good dye combinations of compatibility for use as far as possible, outside the strict control dying operation, the levelling agent that dyeing rate can be suitably regulated in adding is effective easy method again, and the purpose that adds levelling agent is auxiliary fiber to the even absorption of dyestuff and promotes the transfer ability of dyestuff.

Summary of the invention

The objective of the invention is at above technical background, preferred levelling agent raw material provides a kind of preparation to have acid levelling agent and the preparation method of good slurry even dyeing effect.

The technical solution used in the present invention is: a kind of acid levelling agent and preparation method is characterized in that: described acid levelling agent is composed of the following components, each component all by weight percentage:

The preparation method may further comprise the steps:

1, takes by weighing in half adding reactor of institute's water requirement in the prescription.

2, raw material is added reactor successively by prescription requirement order and stir, a kind of raw material of every adding stirred 15～20 minutes.

3, will fill a prescription in its required remaining water, leave standstill after add stirring after 20 minutes, filter discharging.

Polyvinylpyrrolidone of the present invention (PVP-30) is as a kind of synthesizing water-solubility macromolecular compound; general aspects with water-soluble high-molecular compound; colloid protective effect, film forming, caking property, hygroscopicity, solubilising or cohesion; but it is most characteristic, thereby what be subjected to that people pay attention to is its excellent solubility property and physiological compatibility.With many organic dyestuff good affinity is arranged, it can be combined with hydrophobic synthetic fibres such as polyacrylonitrile, ester, nylon and fibrous materials, improves dyeing capacity and hydrophily.

Empgen BB (BS-12) belongs to zwitterionic surfactant, can in wider pH scope, demonstrate excellent soft effect, to wool and the existing abundant soft effect of flax, the effect of effectively cleaning be arranged again, be widely used in the soft finish, be desirable fabric softener, can reduce interfibrous coefficient of friction effectively, thereby produce good soft effect, it can with various surfactant compounds, reach good synergistic, biological degradability is good, low toxicity.

Aliphatic alcohol polyethenoxy (paregal O-20) nonionic surface active agent, outward appearance is oyster white or ecru ointment shape, when molecular weight is higher, be solid shape (can make chip solid as requested), soluble in water, ethanol, ethylene glycol etc. have cloud point, and 1% aqueous ph value is neutral.Acidproof, alkaline-resisting, the anti-hard water of energy, heat-resisting, anti-heavy metallic salt.Various dyestuffs are had powerful level-dyeing property, slow metachromia, permeability, diffusivity, and tool helps experienced performance during kiering, can with various surfactants and dyestuff with molten use.

Sodium sulfate of polyethenoxy ether of fatty alcohol (AES) is colourless or little yellow transparent body of paste, and is soluble in water, is a kind of multifunctional efficient fine chemical material, and formal name used at school is ethoxylated alkyl sulfate.Be widely used in industries such as daily-use chemical industry, weaving, oil, leather, printing and dyeing.Be used for washing, emulsification, wetting, help dye, effect such as diffusion.Excellent biodegradability and cryogenic property are arranged, and active matter content is higher, is not subjected to the influence of the water hardness.

Beneficial effect: the ACID DYES that the present invention makes is dyed the composition that the polyamide fibre levelling agent does not contain not environmental protection, belong to the environment-friendly and green product, by selecting dissimilar raw materials, compositely go out wide, the effective ACID DYES levelling agent of applicability, used levelling agent when especially dying polyamide fibre at ACID DYES reduces the look flower, color spot and the strip defect that are prone to when using ACID DYES to dye polyamide fibre.

The specific embodiment

Described in detail below in conjunction with preferred embodiments of the present invention.

Embodiment one:

Specific embodiment two:

Specific embodiment three:

Below be with market on other kind performance comparison test of dying polyamide fibre, selected levelling agent is Lyogen P, ALbegalSET.

Dyeing prescription/(g/1)

Dyestuff x

Levelling agent 0.5

HAc 1

Dyeing

Advance cloth---levelling agent---dyestuff---HAc---is warming up to 95 ℃, is incubated 20 minutes---fixation, wash, go out cylinder.

Through laboratory's lab scale, the big examination of factory, product proposed by the invention obtains excellent properties when dying polyamide fibre with ACID DYES:

1, when green, purple, bright blue, the apricot of processing, responsive look such as piece red, the programming rate of dyeing can be mentioned 1 ℃/min.

2, improve the level-dyeing property of common dye, and can reduce the levelling agent consumption.

3, often to repair the look the of look at green, purple etc., repair the look rate and reduce greatly.

4, adopt product of the present invention, dyeing time shortens greatly, saves time.

5, return and dye or the technology favorable reproducibility, dyeing one-time success rate height has greatly improved production efficiency, has saved the energy effectively.

Claims (1)

1. an acid levelling agent and preparation method, it is characterized in that: described acid levelling agent is composed of the following components, each component all by weight percentage:

May further comprise the steps:

1, takes by weighing in half adding reactor of institute's water requirement in the prescription.

2, raw material is added reactor successively by prescription requirement order and stir, a kind of raw material of every adding stirred 15～20 minutes.

3, will fill a prescription in its required remaining water, leave standstill after add stirring after 20 minutes, filter discharging.