CN103485154A - Technology for bleaching cotton knitted fabric by using sodium percarbonate - Google Patents
Technology for bleaching cotton knitted fabric by using sodium percarbonate Download PDFInfo
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- CN103485154A CN103485154A CN201310410334.1A CN201310410334A CN103485154A CN 103485154 A CN103485154 A CN 103485154A CN 201310410334 A CN201310410334 A CN 201310410334A CN 103485154 A CN103485154 A CN 103485154A
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- bleaching
- knitted fabric
- sodium percarbonate
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- cotton fabrics
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Abstract
The invention relates to a technology for bleaching cotton knitted fabric by using sodium percarbonate. The technology comprises the following steps: step one., accurately weighting a certain mass of cotton knitted fabric, moistening the cotton knitted fabric by using water, then placing the cotton knitted fabric in a refining working solution, bringing to boil, wherein the boiling time lasts for 2 hours, then taking out the cotton knitted fabric, washing three times with hot water being above 90 DEG C, then washing with cold water till the surface of the cotton knitted fabric is alkali-free, and finally, airing at a normal temperature; and step two., placing the air-dried cotton knitted fabric in a sodium percarbonate solution with the concentration of 5-10g/L, wherein the bath ratio is 1: 30, and carrying out constant temperature treatment for 0.5-2 hours at 70 DEG C to 90 DEG C. The technology has the beneficial effects that the sodium percarbonate is used for bleaching the cotton knitted fabric and has the remarkable advantages of good bleaching effect, no byproducts, no damage to the cotton knitted fabric to be bleached and no pollution to environments, the shortcomings of a bleaching method using commonly-used sodium hypochlorite and hydrogen peroxide are overcome, a bran-new method is supplied for the bleaching of the cotton knitted fabric, and the sodium percarbonate has high utilization value.
Description
Technical field
The invention belongs to technical field of textile printing, be specifically related to a kind of technique of utilizing SODIUM PERCARBONATE bleaching cotton fabrics.
Background technology
At present domestic main clorox and the hydrogen peroxide bleaching cotton fabrics used, can produce the larger chloride organic by-products (AOX) of toxicity in the sodium hypochlorite bleaching process, and environmental pollution is serious, therefore by progressively restriction use.Although the residue of hydrogen peroxide bleaching is nontoxic, its strong basicity bleaching meeting damages to some extent to cotton fabrics, and under hydrogen peroxide normal temperature, is liquid, has the shortcomings such as transportation and storage difficulty.
Recently, although the report that both at home and abroad has the SODIUM PERCARBONATE utilized to be bleached cotton fabrics still in the starting stage, more lacks comparatively detailed feasible processing step to the research of its technique.In theory, utilize SODIUM PERCARBONATE to be bleached cotton fabrics, control concentration, bleaching time and the light radiation of the SODIUM PERCARBONATE impact on the cotton fabrics bleaching effect, can reach good bleaching effect.Therefore, but need the bleaching process of this convenient operation in practical application, not only can develop new bleaching process, and can reduce the pollution to environment.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, a kind of technique of utilizing SODIUM PERCARBONATE bleaching cotton fabrics is provided, as a kind of new bleaching process, not only bleaching effect is good, and environmental protection.
The technical solution used in the present invention is:
A kind of technique of utilizing SODIUM PERCARBONATE bleaching cotton fabrics, comprise the steps:
Step 1: refining process
Get cotton fabrics, with water-wet, then put into concise working solution, boil to boiling, boiling time 2h, then take out cotton fabrics, with the hot wash more than 90 ℃ 3 times, use again cold water flush, until cotton fabrics surface alkali-free finally dries at normal temperatures in order to bleaching and uses.
The proportioning of described concise working solution is:
NaOH 20%、
High-efficiency refining agent YR 2%,
Bath raio 1:30;
Step 2: bleaching
The cotton fabrics dried in above-mentioned steps is placed in to the SODIUM PERCARBONATE solution that finite concentration is 5～10g/L, keeps bath raio 1:30, at 70～90 ℃ of temperature, constant temperature is processed 0.5～2h.
Optimal case of the present invention is: SODIUM PERCARBONATE concentration is 6g/L, and constant temperature refers to 80 ℃, and bleaching time refers to 1h.
The present invention's cotton fabrics used provides for the 4th knitting mill, Tianjin, and SODIUM PERCARBONATE is pure for analyzing, and electric-heated thermostatic water bath is from Beijing bright Medical Instruments factory forever.
The beneficial effect that the present invention has is: the present invention adopts SODIUM PERCARBONATE to be bleached cotton fabrics, overcome the shortcoming of clorox commonly used and hydrogen peroxide bleaching, there is bleaching effect good, no coupling product, do not damage by the bleaching cotton fabrics, environment be there is no to the remarkable advantage polluted, for the cotton fabrics bleaching provides a kind of brand-new method, but value is very high.Technological process is simple, easily operation.
The specific embodiment
In order further to understand advantage of the present invention, below enumerate several specific embodiments.
Embodiment mono-:
A kind of technique of utilizing SODIUM PERCARBONATE bleaching cotton fabrics, comprise the steps:
Step 1: refining process
The cotton fabrics of accurate weighing certain mass, with water-wet, then put into concise working solution, boils to boiling, boiling time 2h, then take out cotton fabrics, with the hot washes of 90 ℃ 3 times, use again cold water flush, until cotton fabrics surface alkali-free finally dries at normal temperatures in order to bleaching and uses.
The proportioning of described concise working solution is:
NaOH 20%。
High-efficiency refining agent YR 2%.
Bath raio 1:30.
Step 2: bleaching
The cotton fabrics dried in above-mentioned steps is placed in to the SODIUM PERCARBONATE solution that finite concentration is 6g/L, keeps bath raio 1:30, at 80 ℃ of temperature, constant temperature processing 1h gets final product.
Embodiment bis-:
A kind of technique of utilizing SODIUM PERCARBONATE bleaching cotton fabrics, comprise the steps:
Step 1: refining process
The cotton fabrics of accurate weighing certain mass, with water-wet, then put into concise working solution, boils to boiling, boiling time 2h, then take out cotton fabrics, with the hot washes of 95 ℃ 3 times, use again cold water flush, until cotton fabrics surface alkali-free finally dries at normal temperatures in order to bleaching and uses.
The proportioning of described concise working solution is:
NaOH 20%、
High-efficiency refining agent YR 2%,
Bath raio 1:30.
Step 2: bleaching
The cotton fabrics dried in above-mentioned steps is placed in to the SODIUM PERCARBONATE solution that finite concentration is 5g/L, keeps bath raio 1:30, at 90 ℃ of temperature, constant temperature processing 2h gets final product.
Embodiment tri-:
A kind of technique of utilizing SODIUM PERCARBONATE bleaching cotton fabrics, comprise the steps:
Step 1: refining process
The cotton fabrics of accurate weighing certain mass, with water-wet, then put into concise working solution, boils to boiling, boiling time 2h, then take out cotton fabrics, with the hot wash of seething with excitement 3 times, use again cold water flush, until cotton fabrics surface alkali-free finally dries at normal temperatures in order to bleaching and uses.
The proportioning of described concise working solution is:
NaOH 20%、
High-efficiency refining agent YR 2%,
Bath raio 1:30.
Step 2: bleaching
The cotton fabrics dried in above-mentioned steps is placed in to the SODIUM PERCARBONATE solution that finite concentration is 10g/L, keeps bath raio 1:30, at 70 ℃ of temperature, constant temperature processing 0.5h gets final product.
The present invention's cotton fabrics used provides for the 4th knitting mill, Tianjin, and SODIUM PERCARBONATE is pure for analyzing, and electric-heated thermostatic water bath is from Beijing bright Medical Instruments factory forever.
The beneficial effect that the present invention has is: the present invention adopts SODIUM PERCARBONATE to be bleached cotton fabrics, overcome the shortcoming of clorox commonly used and hydrogen peroxide bleaching, there is bleaching effect good, no coupling product, do not damage by the bleaching cotton fabrics, environment be there is no to the remarkable advantage polluted, for the cotton fabrics bleaching provides a kind of brand-new method, but value is very high.Technological process is simple, easily operation.
In sum, above embodiment is only in order to illustrate the present invention and unrestricted technical scheme described in the invention; Therefore, although this specification has been described in detail the present invention with reference to each above-mentioned embodiment,, those of ordinary skill in the art should be appreciated that still and can modify or be equal to replacement the present invention; And all do not break away from technical scheme and the improvement thereof of the spirit and scope of the present invention, it all should be encompassed in claim scope of the present invention.
Claims (3)
1. a technique of utilizing SODIUM PERCARBONATE bleaching cotton fabrics, comprise the steps:
Step 1: refining process
Get cotton fabrics, with water-wet, then put into concise working solution, boil to boiling, boiling time 2h, then take out cotton fabrics, with the hot wash more than 90 ℃ 3 times, use again cold water flush, until cotton fabrics surface alkali-free finally dries at normal temperatures in order to bleaching and uses;
Step 2: bleaching
The cotton fabrics dried in above-mentioned steps is placed in to the SODIUM PERCARBONATE solution that concentration is 5～10g/L, keeps bath raio 1:30, at 70～90 ℃ of temperature, constant temperature is processed 0.5～2h.
2. the technique of utilizing SODIUM PERCARBONATE bleaching cotton fabrics according to claim 1, is characterized in that, the proportioning of described concise working solution is:
NaOH 20%、
High-efficiency refining agent YR 2%,
Bath raio 1:30.
3. the technique of utilizing SODIUM PERCARBONATE bleaching cotton fabrics according to claim 1, is characterized in that, the concentration of described SODIUM PERCARBONATE is 6g/L, and bleaching temperature is 80 ℃, and bleaching time is 1h.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310410334.1A CN103485154A (en) | 2013-09-11 | 2013-09-11 | Technology for bleaching cotton knitted fabric by using sodium percarbonate |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310410334.1A CN103485154A (en) | 2013-09-11 | 2013-09-11 | Technology for bleaching cotton knitted fabric by using sodium percarbonate |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102199870A (en) * | 2011-04-06 | 2011-09-28 | 张家港市金陵纺织有限公司 | Working solution and process for pretreating cotton/wool blended yarns |
| CN102677448A (en) * | 2012-06-04 | 2012-09-19 | 江苏联发纺织股份有限公司 | Low-temperature bleaching working solution for pure cotton woven fabrics |
| CN102704259A (en) * | 2012-06-25 | 2012-10-03 | 河北宁纺集团有限责任公司 | Low-temperature scouring and bleaching agent and application thereof |
| CN102965905A (en) * | 2012-11-26 | 2013-03-13 | 浙江安诺其助剂有限公司 | Pressurizing, scouring and bleaching one-bath process for obtaining high-whiteness cotton |
-
2013
- 2013-09-11 CN CN201310410334.1A patent/CN103485154A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102199870A (en) * | 2011-04-06 | 2011-09-28 | 张家港市金陵纺织有限公司 | Working solution and process for pretreating cotton/wool blended yarns |
| CN102677448A (en) * | 2012-06-04 | 2012-09-19 | 江苏联发纺织股份有限公司 | Low-temperature bleaching working solution for pure cotton woven fabrics |
| CN102704259A (en) * | 2012-06-25 | 2012-10-03 | 河北宁纺集团有限责任公司 | Low-temperature scouring and bleaching agent and application thereof |
| CN102965905A (en) * | 2012-11-26 | 2013-03-13 | 浙江安诺其助剂有限公司 | Pressurizing, scouring and bleaching one-bath process for obtaining high-whiteness cotton |
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Application publication date: 20140101 |