Production process for easy decontamination shrink-proof bleaching liner
Technical field
The present invention relates to a kind of production technology of adhesive lining, specifically, relate to production process for easy decontamination shrink-proof bleaching liner.
Background technology
Product carry out with have waterproof, grease proofing, easy decontamination requirement lining bonding after because adhesive lining is not passed through any processing, can not reach easy decontamination and have concurrently and certain refuse water, refuse functional oil, thereby influence the moulded of lining.
In bleaching process, traditional pre-treating technology is to adopt NaOH about 40g/L to move back to boil, and in bleaching or kier boiling-off, passes through chlorine, hydrogen peroxide bleaching more then.Long flow path so not only, consumption alkali is many, fabric damage is big, and the sewage basicity height of discharging, COD value is also very high, needs a large amount of acid neutralizations during sewage disposal, the sewage disposal burden is heavy, cost greatly and chlorine float and belong to the pre-treatment of non-environmental protection class.
During general dyeing and finishing is produced to independent brighten, technology shrinkproof, soil-releasing finiss is substantially all very familiar, if but three kinds of technologies are separately carried out, long flow path not only, uneconomical, and finishing effect is unsatisfactory, and three kinds of arrangements lump together with bathing and carry out, because the auxiliary agent kind is many, can not simple superposition, must consider the compatibility between them, can not disturb mutually and react.
Summary of the invention
The object of the present invention is to provide production process for easy decontamination shrink-proof bleaching liner, can effectively solve existing adhesive lining easily decontamination have concurrently and certain refuse water, refuse functional oil, it is big and be unfavorable for environmental protection to fabric damage that bleaching pre-processing process need consume a large amount of alkali, brightens, shrinkproof, problem that three arts demands of soil-releasing finiss separately carry out.
In order to solve the problems of the technologies described above, the present invention is achieved by the following technical solutions: production process for easy decontamination shrink-proof bleaching liner comprises the steps:
A. roll alkali fire extinguishing cooling after base cloth being singed immediately, NaOH is 10-15g/L in the alkali lye, is carrying out open washing destarch more than 95 ℃ after refining agent 6g/L, heat and moisture preserving banked up 10-12 hour;
B. bleaching: refining enzyme 2.5-3.0g/L in the bleaching liquid, the hydrogen peroxide 6-8ml/L of 27.5%-30% concentration, bath raio 1: 8-1: 10, bleaching time 30-45min;
C. brighten with bathing, shiinkproof finish and soil-releasing finiss: anti-fouling agent 45-55g/L, shrinkproof resin 75-85g/L, catalyst 11-15g/L, brightening agent 8-10g/L, with bath time 30-60min, two soak two rolls pick-up 70%;
D. cool off cropping, coating is advanced cloth;
E. put glue: adopt polyamide hot to carry out the two point coating, several 40 orders of cylinder order, aperture 0.29mm, thickness 0.18mm, speed of a motor vehicle 40m/min, drying room temperature: 170-180 ℃, 20-30 ℃ of workshop condition temperature, humidity 60%-70%;
F. bake: adopt contactless hot blast prebake, first 80-90 ℃ of becate preliminary drying 10-20min, 140-160 ℃ of prebaking 20-30min again, 165 ℃ bake 50-60min again;
G. batch, eventually inspection, finished product.
Preferably, the anti-fouling agent among the described step C adopts the SR agent, and shrinkproof resin is the ultra-low formaldehyde resin, and catalyst is a magnesium chloride; Because the existence of anion brightening agent, so anti-fouling agent is selected nonionic or weak cation type, waterproof resin is selected the ultra-low formaldehyde resin, arrangement back cloth cover free formaldehyde content is less than 75ppm, compliance with environmental protection requirements, catalyst is selected magnesium chloride for use, can cooperate with anti-fouling agent, shrinkproof resin etc. to play good effect.
Preferably, described SR anti-fouling agent 50g/L, ultra-low formaldehyde resin 80g/L, magnesium chloride 13g/L; Can reach the amount of good result.
Compared with prior art, advantage of the present invention is: adopt and to roll the pre-treatment that destarch combines with composite refining enzyme oxygen bleaching process of banking up of light alkali after singing, carry out the two point coating with the import polyamide hot again and produce.Product has soft, dimensionally stable, and the peel strength height both had the good wearability of " light, thin, gentle, very, suitable ", had again to have concurrently with quite shrinkproof, the easy decontamination of lining certain to refuse water, refuse the wet goods specific function; The processing of formaldehydeless shrinkproof new technology gives lining cloth good servo-actuated performance, presses when scalding to make clothes obtain best guarantor's type effect with the contraction of lining, lax changing; Roll light alkali bank up destarch and the pre-treating technology that composite refining enzyme oxygen bleaching process combines after singing, both solved the difficult problem of biology enzyme destarch weak effect, lack than traditional handicraft again simultaneously and used alkali, reduced damage, again compliance with environmental protection requirements fabric; Multi-functional refining enzyme and H
2O
2Bleaching process not only shortens flow process, simplifies the operation, and has used alkali less, has alleviated fabric damage, has alleviated the difficulty of sewage disposal.
Description of drawings
Fig. 1 is the process route chart of production process for easy decontamination shrink-proof bleaching liner of the present invention.
The specific embodiment
Consult the embodiment of Fig. 1 for production process for easy decontamination shrink-proof bleaching liner of the present invention, production process for easy decontamination shrink-proof bleaching liner comprises the steps:
A. roll alkali fire extinguishing cooling after base cloth being singed immediately, NaOH is 10-15g/L in the alkali lye, is carrying out open washing destarch more than 95 ℃ after environmental protection refining agent 6g/L, heat and moisture preserving banked up 10-12 hour;
B. bleaching: multi-functional refining enzyme 2.5-3.0g/L in the bleaching liquid, the hydrogen peroxide 6-8ml/L of 27.5%-30% concentration, bath raio 1: 8-1: 10, bleaching time 30-45min;
C. brighten with bathing, shiinkproof finish and soil-releasing finiss: SR anti-fouling agent 50g/L, ultra-low formaldehyde resin 80g/L, magnesium chloride 13g/L, brightening agent 8-10g/L, with bath time 30-60min, two soak two rolls pick-up 70%;
D. cool off cropping, coating is advanced cloth;
E. put glue: adopt polyamide hot to carry out the two point coating, several 40 orders of cylinder order, aperture 0.29mm, thickness 0.18mm, speed of a motor vehicle 40m/min, drying room temperature: 170-180 ℃, 20-30 ℃ of workshop condition temperature, humidity 60%-70%;
F. bake: adopt contactless hot blast prebake, first 80-90 ℃ of becate preliminary drying 10-20min, 140-160 ℃ of prebaking 20-30min again, 165 ℃ bake 50-60min again;
G. batch, eventually inspection, finished product.
In the above-mentioned steps, it is not high that the A step is rolled alkali concn, too highly not only can not improve the destarch effect, can cause waste on the contrary, can increase the sewage disposal burden yet; Adopt the environmental protection refining agent for having good penetration, washing, removing functional oil.Stable under the high-alkali condition of high temperature, antioxidant and reducing agent do not contain alkyl phenol, have favorable biological degradability and belong to the environment-friendly highly efficient pre-treatment auxiliary agent; The environmental protection refining agent adopts the South Sea, Foshan to believe the HB-101 type environmental protection refining agent that sincere chemical industry Co., Ltd produces; Multi-functional refining enzyme adopts the GJB refining enzyme that the extensively strong Fine Chemical Works in Guangzhou is produced in the B step, is the high-tech environment-friendly products that a kind of biological enzyme technology combines with chemical products.Be mainly used in cotton yarn, cotton, fiber crops and the general bafta half bleaching arranging process before dyeing.After handling, multi-functional refining agent can effectively remove impurity such as wax class in the cotton face fabric, slurry, natural salt, natural color.Make that fabric face is bright and clean, whiteness improves, soft smooth, have the good surface appearance performance.Multi-functional refining enzyme has substituted multiple auxiliary agents such as the caustic soda in the traditional handicraft, bleeding agent, scouring agent, hydrogen peroxide bleaching stabilizer.Its bleaching process has not only reduced the kind that oxygen floats auxiliary agent, has also shortened the processing time, has simplified production technology, reduces the damage to fibre strength.Fundamentally solved the phenomenon in sewing needle hole, and can effectively solve the fabric of caustic soda sensitivity is bleached.Conserve water, electricity, artificial, integrated cost reduction; Greatly reduced sewage discharge, preserved the ecological environment, human body has not been had harm; SR anti-fouling agent in the C step is the SR anti-fouling agent that BASF Aktiengesellschaft produces, and brightening agent is the VBL brightening agent that the rich strange chemical industry Co., Ltd in Shanghai produces, and the ultra-low formaldehyde resin is the D-30 type ultra-low formaldehyde resin that Guangzhou Zhuo Xin Fine Chemical Co., Ltd becomes to produce.
C29 cotton yarn adopts the performance after the above-mentioned technology to see the ginseng following table:
| Project |
Technical indicator |
| Peel strength |
≥18N/5×10cm |
| Xeothermic change in size |
Warp-wise 〉=-0.7% broadwise 〉=-0.5% |
| The washing change in size |
Warp-wise 〉=-0.8% broadwise 〉=-0.5% |
| Dried, water-cleaning appearance changes |
5 grades |
| Discharge free formaldehyde |
≤45ppm |
| Easily decontamination |
3.5 level |
| Waterproof |
4 grades |
| Grease proofing |
4 grades |
The above only is specific embodiments of the invention, but architectural feature of the present invention is not limited thereto, and any those skilled in the art is in the field of the invention, and the variation of being done or modify all is encompassed among the claim of the present invention.