CN104631142A - Dyeing energy-saving emission-reduction production technology - Google Patents

Abstract

The invention relates to a dyeing energy-saving emission-reduction production technology, which comprises the following steps: 1)a cold pad batch dyeing technology; A)fabric cold pad batch dyeing: padding is carried out on fabric under room temperature by a mixed dye liquor of a dye and an alkali agent; B)yarn cold pad batch dyeing: balling yarn, pretreating (bleaching and padding-cold batch-deoxygenation and alkali removal)) drying and cooling, dyeing and padding, performing cold batch, soaping, drying, leasing and warping, winding or pasting; 2)an air-flow dyeing technology; and 3)a reactive dye salt-free pad-steam continuous dyeing technology. The technology realizes yarn cold pad batch semi-continuous dyeing, compared with a traditional yarn reeled yarn or cheese dyeing method, the dyeing efficiency is high, pollution is little, water saving, energy saving, emission reduction and consumption reduction are realized, and benefit is obvious.

Description

Energy-saving dyeing reduces discharging production technology

Technical field

The present invention relates to a kind of energy-saving dyeing and reduce discharging production technology, belong to staining technique field.

Background technology

Namely dyeing catch color, also deserves to be called look, refers to and affect material itself by chemical or other method and make it painted; Object can be made to present shades of colour required for people by dyeing, decorate life with colourful; The method of dyeing has it from ancient times, and development.

Dyeing basic process: according to the viewpoint of the dyeing theory in modern times, why dyestuff can go up dye fiber, and there is certain fastness on fabric, because there is various gravitation between dye molecule and fiber molecule, the dyeing theory of all kinds of dyestuff and dyeing, there is very big difference because of the respective characteristic of dyestuff and fiber, cannot treat different things as the same.

Summary of the invention

The object of the present invention is to provide a kind of energy-saving dyeing to reduce discharging production technology, belong to staining technique field.

To achieve these goals, technical scheme of the present invention is as follows:

A kind of energy-saving dyeing reduces discharging production technology, specifically comprises:

(1) cold-rolling heap staining technology:

1. fabric cold-rolling heap staining: fabric cold-rolling heap staining is that fabric at room temperature pads dyestuff and alkaline agent mixing dye liquor (dye liquor and alkaline agent are squeezed into simultaneously padded groove by passing ratio pump respectively), roll pressed is utilized to make dye liquor be adsorbed on fabric face, then clot, to bank up at low temperatures certain hour, complete absorption, diffusion, set, loose colour is removed in finally washing; Cold rolling batch-dying process flow process is short, not drying and decatize, thus economize energy; Have that bath raio is little, dye uptake up to more than 90% (improving 15%-25% than conventional pad steaming process), hydrolised dye is few, therefore can save dyestuff and be about 10%-20%, alleviate sewage decoloring pressure; And electrolyte consumption is few, dye utilization rate is high, and easily, blowdown flow rate is little, low in the pollution of the environment in cleaning; With continuous dyeing roll baking, pretreatment technology is compared, the resources such as water, electricity, vapour can be saved and reach 2O%-6O%;

2. Yarn cold rolling batch dyeing: traditional yarn dyeing mainly adopts cheese and twisted wire dyeing, the two all belongs to step dip-dye mode, contaminate one ton of yarn and at least need 120t water, yarn electricity consumption about 1200kW per ton, steam about 8t, has the dyestuff of about 30%-50% and auxiliary agent effectively not to utilize during dyeing; Changzhou associating Donghua University of Jun Hong dyeing and finishing Co., Ltd has carried out the research of " purified cotton yarns cold-rolling heap staining technique and equipment ", and breaching traditional cheese, reeled yarn batchwise exhaust mode, is the once innovation to yarn dyeing;

Technological process is: yarn balling-up → pre-treatment (→ cold dome → deoxygenation dealkalize is padded in bleaching) → Drying and cooling → dyeing pads → cold dome → soap → dry → and dividing sinker warping → winder or starching;

(2) airflow dyeing technique: different from the dyeing machine principle of routine, airflow dyeing machine is using the air-flow of air blast generation as defeated cloth medium, air stream drives fabric runs in staining bath high speed, high velocity air makes fabric in rope form launch, many groups shower sprays dye liquor to fabric, make dye liquor fabric face be uniformly distributed and on dye, the fabric rate due to air-flow transmission is higher than liquid fluid system, and the tension force that fabric is subject to is less, so staining efficiency is high, favorable reproducibility; Airflow dyeing machine is compared with conventional jet-dyeing machine, and tool has the following advantages: 1, bath raio little (1:3), and every kg fabric only needs to use water 16L, and water consumption can reduce more than 50%; 2, dyeing time shortens 50%; 3, steam saving 50%; 4, save dye material as %, energy-saving and emission-reduction are quite remarkable;

(3) reactive dye salt-free pad steam continuous dyeing technology: regular activated dyestuff two step method continuous dyeing process is for rolling, drying, roll, steam, wash; Salt-free dyeing work simplification is three steps, namely rolls, steams, washes; On common continuous knot dyeing car, after using latter half reductive steam box and soaping, open washing unit completes reactive dyeing overall process; Rolling with routine → dry → roll → steam compared with technique can synthesis energy saving 30-50%, fabric imbue is got well and is prevented dye migration, and without salt during dyeing, decreasing dyeing chemicals consumption 90%, the salt fundamentally eliminated in dyeing and printing sewage is difficult to the difficult problem removed, loose colour not easily returns and is stained with in addition, improve the washing performance of stained clot-h, emissions reduction sewage more than 30%, improves dyefastness, chroma in waste water is declined and water consumption minimizing, be conducive to reducing waste discharge load; The technological process of salt-free pad steam technique: mixed liquor → decatize (100-102 DEG C, the 1.5min) → cold wash → heat of padding dye liquor and special fixation alkaline agent washes → soaps → and heat washes → cold wash → oven dry;

Reactive dye wet steaming staining technique: reactive dye wet steaming continuous knot dyeing technology applies superheated steam or steam and hot-air mist to carry out fixation; It is by fabric not drying after padding dye liquor, with hygrometric state vapour steaming colour fixing in the reaction chamber of humiture monitoring device; This simple process, efficient, energy-conservation, fixation rate is high, and there is the advantages such as abundant infiltration, uniform color be bright-coloured, environmentally friendly, it is substantially identical with the E-contro1 dyeing of Monforts company joint development with Dystar company, though slightly distinguish (China adds infrared heating device and high-temperature heating equipment) compared with the wet short steaming and rolling dyeing technique developed with China; Decatize in wet short steaming continuous knot dyeing technology is carried out in the carrier more than 100 DEG C, and carrier also all contains certain humidity, has plenty of superheated steam, has plenty of the mist of hot-air and steam; Therefore vapour steaming colour fixing speed is fast, and degree of fixation is high, and dyestuff is migration not easily, and alkaline agent consumption is low, maybe can apply and pollute few alkalescent alkaline agent, generally can without urea, and reappearance, level-dyeing property and through-dyeing are good; Due to without oven dry, the wet direct decatize of fabric (roasting is steamed), obviously energy-conservation.

This beneficial effect of the invention is: this technique achieves the semicontinuous dyeing of Yarn cold rolling batch, and reeled yarn or its staining efficiency of bobbin dyeing method of comparing conventional yarn be high, it is low to pollute, water saving, energy-conservation, and reduce discharging consumption reduction, benefit is obvious.

Detailed description of the invention

Below in conjunction with embodiment, the specific embodiment of the present invention is described, better to understand the present invention.

Embodiment

A kind of energy-saving dyeing reduces discharging production technology, specifically comprises:

(1) cold-rolling heap staining technology:

1. fabric cold-rolling heap staining: fabric cold-rolling heap staining is that fabric at room temperature pads dyestuff and alkaline agent mixing dye liquor (dye liquor and alkaline agent are squeezed into simultaneously padded groove by passing ratio pump respectively), roll pressed is utilized to make dye liquor be adsorbed on fabric face, then clot, to bank up at low temperatures certain hour, complete absorption, diffusion, set, loose colour is removed in finally washing; Cold rolling batch-dying process flow process is short, not drying and decatize, thus economize energy.Have that bath raio is little, dye uptake up to more than 90% (improving 15%-25% than conventional pad steaming process), hydrolised dye is few, therefore can save dyestuff and be about 10%-20%, alleviate sewage decoloring pressure; And electrolyte consumption is few, dye utilization rate is high, and easily, blowdown flow rate is little, low in the pollution of the environment in cleaning; With continuous dyeing roll baking, pretreatment technology is compared, the resources such as water, electricity, vapour can be saved and reach 2O%-6O%;

2. Yarn cold rolling batch dyeing: traditional yarn dyeing mainly adopts cheese and twisted wire dyeing, the two all belongs to step dip-dye mode, contaminate one ton of yarn and at least need 120t water, yarn electricity consumption about 1200kW per ton, steam about 8t, has the dyestuff of about 30%-50% and auxiliary agent effectively not to utilize during dyeing; Changzhou associating Donghua University of Jun Hong dyeing and finishing Co., Ltd has carried out the research of " purified cotton yarns cold-rolling heap staining technique and equipment ", and breaching traditional cheese, reeled yarn batchwise exhaust mode, is the once innovation to yarn dyeing;

Technological process is: yarn balling-up → pre-treatment (→ cold dome → deoxygenation dealkalize is padded in bleaching) → Drying and cooling → dyeing pads → cold dome → soap → dry → and dividing sinker warping → winder or starching;

(2) airflow dyeing technique: different from the dyeing machine principle of routine, airflow dyeing machine is using the air-flow of air blast generation as defeated cloth medium, air stream drives fabric runs in staining bath high speed, high velocity air makes fabric in rope form launch, many groups shower sprays dye liquor to fabric, make dye liquor fabric face be uniformly distributed and on dye, the fabric rate due to air-flow transmission is higher than liquid fluid system, and the tension force that fabric is subject to is less, so staining efficiency is high, favorable reproducibility; Airflow dyeing machine is compared with conventional jet-dyeing machine, and tool has the following advantages: 1, bath raio little (1:3), and every kg fabric only needs to use water 16L, and water consumption can reduce more than 50%; 2, dyeing time shortens 50%; 3, steam saving 50%; 4, save dye material as %, energy-saving and emission-reduction are quite remarkable;

(3) reactive dye salt-free pad steam continuous dyeing technology: regular activated dyestuff two step method continuous dyeing process is for rolling, drying, roll, steam, wash; Salt-free dyeing work simplification is three steps, namely rolls, steams, washes.On common continuous knot dyeing car, after using latter half reductive steam box and soaping, open washing unit completes reactive dyeing overall process; Rolling with routine → dry → roll → steam compared with technique can synthesis energy saving 30-50%, fabric imbue is got well and is prevented dye migration, and without salt during dyeing, decreasing dyeing chemicals consumption 90%, the salt fundamentally eliminated in dyeing and printing sewage is difficult to the difficult problem removed, loose colour not easily returns and is stained with in addition, improve the washing performance of stained clot-h, emissions reduction sewage more than 30%, improves dyefastness, chroma in waste water is declined and water consumption minimizing, be conducive to reducing waste discharge load; The technological process of salt-free pad steam technique: mixed liquor → decatize (100-102 DEG C, the 1.5min) → cold wash → heat of padding dye liquor and special fixation alkaline agent washes → soaps → and heat washes → cold wash → oven dry;

Reactive dye wet steaming staining technique: reactive dye wet steaming continuous knot dyeing technology applies superheated steam or steam and hot-air mist to carry out fixation; It is by fabric not drying after padding dye liquor, with hygrometric state vapour steaming colour fixing in the reaction chamber of humiture monitoring device; This simple process, efficient, energy-conservation, fixation rate is high, and there is the advantages such as abundant infiltration, uniform color be bright-coloured, environmentally friendly, it is substantially identical with the E-contro1 dyeing of Monforts company joint development with Dystar company, though slightly distinguish (China adds infrared heating device and high-temperature heating equipment) compared with the wet short steaming and rolling dyeing technique developed with China; Decatize in wet short steaming continuous knot dyeing technology is carried out in the carrier more than 100 DEG C, and carrier also all contains certain humidity, has plenty of superheated steam, has plenty of the mist of hot-air and steam; Therefore vapour steaming colour fixing speed is fast, and degree of fixation is high, and dyestuff is migration not easily, and alkaline agent consumption is low, maybe can apply and pollute few alkalescent alkaline agent, generally can without urea, and reappearance, level-dyeing property and through-dyeing are good; Due to without oven dry, the wet direct decatize of fabric (roasting is steamed), obviously energy-conservation.

The above is the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications are also considered as protection scope of the present invention.

Claims (1)

1. energy-saving dyeing reduces discharging a production technology, specifically comprises:

(1) cold-rolling heap staining technology:

1. fabric cold-rolling heap staining: fabric cold-rolling heap staining is that fabric at room temperature pads dyestuff and alkaline agent mixing dye liquor (dye liquor and alkaline agent are squeezed into simultaneously padded groove by passing ratio pump respectively), roll pressed is utilized to make dye liquor be adsorbed on fabric face, then clot, to bank up at low temperatures certain hour, complete absorption, diffusion, set, loose colour is removed in finally washing;

2. Yarn cold rolling batch dyeing: traditional yarn dyeing mainly adopts cheese and twisted wire dyeing, the two all belongs to step dip-dye mode, contaminate one ton of yarn and at least need 120t water, yarn electricity consumption about 1200kW per ton, steam about 8t, has the dyestuff of about 30%-50% and auxiliary agent effectively not to utilize during dyeing; Technological process is: yarn balling-up → pre-treatment (→ cold dome → deoxygenation dealkalize is padded in bleaching) → Drying and cooling → dyeing pads → cold dome → soap → dry → and dividing sinker warping → winder or starching;

(2) airflow dyeing technique;

(3) reactive dye salt-free pad steam continuous dyeing technology.