CN102561006A - Preprocessing technology for blended knitted fabric of polylactic acid and soy protein - Google Patents
Preprocessing technology for blended knitted fabric of polylactic acid and soy protein Download PDFInfo
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- CN102561006A CN102561006A CN2011103997418A CN201110399741A CN102561006A CN 102561006 A CN102561006 A CN 102561006A CN 2011103997418 A CN2011103997418 A CN 2011103997418A CN 201110399741 A CN201110399741 A CN 201110399741A CN 102561006 A CN102561006 A CN 102561006A
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Abstract
The invention discloses a preprocessing technology for a blended knitted fabric of polylactic acid and soy protein. The technological flow of the preprocessing technology comprises fabric preparation, cooking and bleaching of alkali oxygen in a bath, washing with hot water, washing with cold water, dewatering and drying. The preprocessing technology for the blended knitted fabric of the polylactic acid and the soy protein is characterized in that the formula and the condition of the cooking and bleaching flow of alkali oxygen in the bath are as follows: the concentration of 30% H2O2 is 30g/L; the concentration of Na2CO3 is 2g/L; the concentration of Na2SiO3 is 5 to 7g/L; the concentration of a refining agent is 5g/L; the concentration of penetrating agent JFC is 15g/L; the pH value is from 8 to 9; the temperature is 90DEG C; and the time is 50 minutes. By the mode, according to the invention, the whiteness of the fabric can be enhanced; the bursting strength and the strong damage degree of the fabric are reduced; and under a milder condition, the technological purpose of cooking and bleaching is achieved and the damage to the fabric is avoided.
Description
Technical field
The present invention relates to the knitted fabric pre-treatment process field of dyeing, particularly relate to a kind of PLA and soybean protein blended fabric pre-treatment process.
Background technology
PLA (PLA) fiber and soybean fiber all are important novel ecological environmental protection fibers; Have that comfortable and easy to wear, fluffy softness, antibiotic, moisture absorption are ventilative, characteristics such as degradable,, no any excitant good to the skin compatibility, be the first-selected lining of high-grade underwear of making and fashionable dress.
But the pre-treatment of these two kinds of fiber blended knitted things has certain degree of difficulty; Mainly be that the PLA fiber is responsive, not alkaline-resisting to temperature; Particularly under the high-temperature alkaline condition serious hydrolysis can take place, cause intensity seriously to descend: and soybean fiber or fabric are darker ecru, not only can influence the outward appearance of fabric; Also can influence the coloured light and the colour brightness of dyeing and printing fabric, must strengthen pre-treatment.But the alkali resistance and the heat resistance that are difficult to soybean fiber are relatively poor; Bleaching and dyeing the alkali concn that adds in the fourth, temperature etc. fiber is had considerable influence; Therefore; Should reach certain whiteness requirement, satisfy the minimum wearability take into account two kinds of fibers again, the selection of method for bleaching and the technology particular importance that just seems.
Summary of the invention
The technical problem that the present invention mainly solves provides a kind of PLA and soybean protein blended fabric pre-treatment process; Can improve the whiteness of fabric; And the bursting strength of fabric and strength damage degree reduce; Under the condition that relatively relaxes, not only can reach and boil the technology purpose of floating. but also avoid damaging fabric.
For solving the problems of the technologies described above; The technical scheme that the present invention adopts is: a kind of PLA and soybean protein blended fabric pre-treatment process are provided; Its technological process comprises: fabric is prepared, alkaline oxygen bath boil float, hot water wash, cold wash, dehydration and oven dry, prescription and condition that said alkaline oxygen bath boils in the drift journey are: 30% hydrogen peroxide solution (H
2O
2) concentration: 30g/L, sodium carbonate (Na
2CO
3) concentration: 2 g/L, waterglass (Na
2SiO
3) concentration: 5 ~ 7 g/L, refining agent concentration: 5 g/L, penetrating agent JFC concentration: 15 g/L, the pH value: 8 ~ 9, temperature: 90 ℃, the time: 50min.
In preferred embodiment of the present invention, said hot water wash: hot water wash 2 ~ 4 roads under 60 ℃ of temperature.
In preferred embodiment of the present invention, said cold wash: in temperature is to cross 1 road in the cold water below 20 ℃.
In preferred embodiment of the present invention, said oven dry: dry under 105 ℃ of temperature in temperature, be placed on cooling under the normal temperature again.
The invention has the beneficial effects as follows: PLA of the present invention and soybean protein blended fabric pre-treatment process; Boil at alkaline oxygen bath and to have selected suitable prescription and condition in the flow process for use; Make the effect of prescription give full play to, improved the whiteness of fabric, and the bursting strength of fabric and the reduction of strength damage degree; Under the condition that relatively relaxes, not only can reach and boil the technology purpose of floating. but also avoid damaging fabric.
The specific embodiment
The embodiment of the invention 1: PLA and soybean fiber (50%/50%) blended fabric 1000g
Technological process: alkaline oxygen bath boil float, hot water wash, cold wash, dehydration and oven dry.
Alkaline oxygen bath boils and floats: 30% hydrogen peroxide solution (H
2O
2) concentration: 20g/L, sodium carbonate (Na
2CO
3) concentration: 2 g/L, waterglass (Na
2SiO
3) concentration: 5 g/L, refining agent concentration: 5 g/L, penetrating agent JFC concentration: 15 g/L, the pH value: 8 ~ 9, temperature: 90 ℃, the time: 60min.
Through PLA and soybean fiber blended knitted fabric after the above processing, whiteness is 38.01, and bursting strength is 208.5N, and strength damage is 3.02.
The embodiment of the invention 2: PLA and soybean fiber (50%/50%) blended fabric 1000g
Technological process: alkaline oxygen bath boil float, hot water wash, cold wash, dehydration and oven dry.
Alkaline oxygen bath boils and floats: 30% hydrogen peroxide solution (H
2O
2) concentration: 30g/L, sodium carbonate (Na
2CO
3) concentration: 2 g/L, waterglass (Na
2SiO
3) concentration: 5 g/L, refining agent concentration: 5 g/L, penetrating agent JFC concentration: 15 g/L, the pH value: 8 ~ 9, temperature: 90 ℃, the time: 60min.
Through PLA and soybean fiber blended knitted fabric after the above processing, whiteness is 44.70, and bursting strength is 199.0N, and strength damage is 7.44.
The embodiment of the invention 3: PLA and soybean fiber (50%/50%) blended fabric 1000g
Technological process: alkaline oxygen bath boil float, hot water wash, cold wash, dehydration and oven dry.
Alkaline oxygen bath boils and floats: 30% hydrogen peroxide solution (H
2O
2) concentration: 40g/L, sodium carbonate (Na
2CO
3) concentration: 2 g/L, waterglass (Na
2SiO
3) concentration: 5 g/L, refining agent concentration: 5 g/L, penetrating agent JFC concentration: 15 g/L, the pH value: 8 ~ 9, temperature: 90 ℃, the time: 60min.
Through PLA and soybean fiber blended knitted fabric after the above processing, whiteness is 41.41, and bursting strength is 187.5N, and strength damage is 12.80.
Can find out from above-mentioned three embodiment: along with H
2O
2The raising of concentration, the whiteness of fabric improves, and this is because the concentration of HO2-and small-amount free base concentration improve.Due to the ability of oxidation pigment molecular strengthens; But descend on the contrary during to 40 g/L, and fabric strength is along with H
2O
2The raising of concentration and obviously descending. this is because after pigment molecular was destroyed, whiteness no longer improved, but the degree of polymerization of fiber descends, and causes powerful decline H
2O
2Whiteness was best when concentration was 30 g/L, and fabric damage is again in allowed band, so H
2O
2Concentration is decided to be 30g/L.
The embodiment of the invention 4: PLA and soybean fiber (50%/50%) blended fabric 1000g
Technological process: alkaline oxygen bath boil float, hot water wash, cold wash, dehydration and oven dry.
Alkaline oxygen bath boils and floats: the pH value: 7,30% hydrogen peroxide solution (H
2O
2) concentration: 30g/L, sodium carbonate (Na
2CO
3) concentration: 2 g/L, waterglass (Na
2SiO
3) concentration: 5 g/L, refining agent concentration: 5 g/L, penetrating agent JFC concentration: 15 g/L, temperature: 90 ℃, the time: 60min.
Through PLA and soybean fiber blended knitted fabric after the above processing, whiteness is 31.31, and bursting strength is 210.0N, and strength damage is 2.17.
The embodiment of the invention 5: PLA and soybean fiber (50%/50%) blended fabric 1000g
Technological process: alkaline oxygen bath boil float, hot water wash, cold wash, dehydration and oven dry.
Alkaline oxygen bath boils and floats: the pH value: 8,30% hydrogen peroxide solution (H
2O
2) concentration: 30g/L, sodium carbonate (Na
2CO
3) concentration: 2 g/L, waterglass (Na
2SiO
3) concentration: 5 g/L, refining agent concentration: 5 g/L, penetrating agent JFC concentration: 15 g/L, temperature: 90 ℃, the time: 60min.
Through PLA and soybean fiber blended knitted fabric after the above processing, whiteness is 36.45, and bursting strength is 206.0N, and strength damage is 4.18.
The embodiment of the invention 6: PLA and soybean fiber (50%/50%) blended fabric 1000g
Technological process: alkaline oxygen bath boil float, hot water wash, cold wash, dehydration and oven dry.
Alkaline oxygen bath boils and floats: the pH value: 9,30% hydrogen peroxide solution (H
2O
2) concentration: 30g/L, sodium carbonate (Na
2CO
3) concentration: 2 g/L, waterglass (Na
2SiO
3) concentration: 5 g/L, refining agent concentration: 5 g/L, penetrating agent JFC concentration: 15 g/L, temperature: 90 ℃, the time: 60min.
Through PLA and soybean fiber blended knitted fabric after the above processing, whiteness is 39.28, and bursting strength is 200.0N, and strength damage is 6.99.
The embodiment of the invention 7: PLA and soybean fiber (50%/50%) blended fabric 1000g
Technological process: alkaline oxygen bath boil float, hot water wash, cold wash, dehydration and oven dry.
Alkaline oxygen bath boils and floats: the pH value: 10,30% hydrogen peroxide solution (H
2O
2) concentration: 30g/L, sodium carbonate (Na
2CO
3) concentration: 2 g/L, waterglass (Na
2SiO
3) concentration: 5 g/L, refining agent concentration: 5 g/L, penetrating agent JFC concentration: 15 g/L, temperature: 90 ℃, the time: 60min.
Through PLA and soybean fiber blended knitted fabric after the above processing, whiteness is 35.05, and bursting strength is 185.0N, and strength damage is 14.00.
Can be found out by embodiment 4 to embodiment 7: the pH value is that 9 o'clock fabric whitenesses are best, though pH is that 8 o'clock lower strength damages of fabric whiteness are also lower, the pH value is to H
2O
2Resolution ratio, whiteness, brute force influence bigger, and generally speaking, the pH value raises, H
2O
2Resolution ratio is obviously accelerated, and whiteness is brought up to a certain degree and stable whiteness afterwards descends.The pH value raises under alkali condition, and fabric strength obviously descends.Take all factors into consideration that PLA and soybean fiber high-temp alkali-resistant are poor, whiteness and powerful relations such as balance, the selection 8～9 of pH value is comparatively suitable.
The embodiment of the invention 8: PLA and soybean fiber (50%/50%) blended fabric 1000g
Technological process: alkaline oxygen bath boil float, hot water wash, cold wash, dehydration and oven dry.
Alkaline oxygen bath boils and floats: waterglass (Na
2SiO
3) concentration: 4 g/L, pH value: 8,30% hydrogen peroxide solution (H
2O
2) concentration: 30g/L, sodium carbonate (Na
2CO
3) concentration: 2 g/L, refining agent concentration: 5 g/L, penetrating agent JFC concentration: 15 g/L, temperature: 90 ℃, the time: 60min.
Through PLA and soybean fiber blended knitted fabric after the above processing, whiteness is 43.26, and bursting strength is 192.5N, and strength damage is 10.50.
The embodiment of the invention 9: PLA and soybean fiber (50%/50%) blended fabric 1000g
Technological process: alkaline oxygen bath boil float, hot water wash, cold wash, dehydration and oven dry.
Alkaline oxygen bath boils and floats: waterglass (Na
2SiO
3) concentration: 5g/L, pH value: 8,30% hydrogen peroxide solution (H
2O
2) concentration: 30g/L, sodium carbonate (Na
2CO
3) concentration: 2 g/L, refining agent concentration: 5 g/L, penetrating agent JFC concentration: 15 g/L, temperature: 90 ℃, the time: 60min.
Through PLA and soybean fiber blended knitted fabric after the above processing, whiteness is 46.84, and bursting strength is 209.0N, and strength damage is 2.79.
The embodiment of the invention 10: PLA and soybean fiber (50%/50%) blended fabric 1000g
Technological process: alkaline oxygen bath boil float, hot water wash, cold wash, dehydration and oven dry.
Alkaline oxygen bath boils and floats: waterglass (Na
2SiO
3) concentration: 7 g/L, pH value: 8,30% hydrogen peroxide solution (H
2O
2) concentration: 30g/L, sodium carbonate (Na
2CO
3) concentration: 2 g/L, refining agent concentration: 5 g/L, penetrating agent JFC concentration: 15 g/L, temperature: 90 ℃, the time: 60min.
Through PLA and soybean fiber blended knitted fabric after the above processing, whiteness is 45.66, and bursting strength is 213.0N, and strength damage is 0.93.
Can find out by embodiment 8 to embodiment 10: work as Na
2SiO
3When concentration was 5～7 g/L, the whiteness of bleaching was good, and is powerful high, and Na
2SiO
3Concentration is 5 g/L when following, and the whiteness of fabric is lower, powerful poor.This is because Na
2SiO
3When concentration was low, its stabilization was not obvious, H
2O
2Decompose too fastly, discoloration is relatively poor, spends low certainly; And Na
2SiO
3The stabilizations such as metal ion that some played catalytic action are poor, H
2O
2Invalid decomposition is many, and the oxygen of a large amount of nascent states and free radical descend the brute force of fabric, even produces broken hole, but Na
2SiO
3Concentration is also unsuitable too high, although stabilization does not have significant change, the silicon dirt that produces in fabric and equipment surface is understood influence the use of equipment and the feel of fabric.Therefore, Na
2SiO
3Concentration 5 ~ 7g/L is advisable.
The embodiment of the invention 11: PLA and soybean fiber (50%/50%) blended fabric 1000g
Technological process: alkaline oxygen bath boil float, hot water wash, cold wash, dehydration and oven dry.
Alkaline oxygen bath boils and floats: temperature: 80 ℃, and time: 50min, waterglass (Na
2SiO
3) concentration: 7 g/L, pH value: 8,30% hydrogen peroxide solution (H
2O
2) concentration: 30g/L, sodium carbonate (Na
2CO
3) concentration: 2 g/L, refining agent concentration: 5 g/L, penetrating agent JFC concentration: 15 g/L.
Through PLA and soybean fiber blended knitted fabric after the above processing, whiteness is 40.18, and bursting strength is 1879.5N, and strength damage is 11.90.
The embodiment of the invention 12: PLA and soybean fiber (50%/50%) blended fabric 1000g
Technological process: alkaline oxygen bath boil float, hot water wash, cold wash, dehydration and oven dry.
Alkaline oxygen bath boils and floats: temperature: 80 ℃, and time: 70min, waterglass (Na
2SiO
3) concentration: 7 g/L, pH value: 8,30% hydrogen peroxide solution (H
2O
2) concentration: 30g/L, sodium carbonate (Na
2CO
3) concentration: 2 g/L, refining agent concentration: 5 g/L, penetrating agent JFC concentration: 15 g/L.
Through PLA and soybean fiber blended knitted fabric after the above processing, whiteness is 41.58, and bursting strength is 187.1N, and strength damage is 13.00.
The embodiment of the invention 13: PLA and soybean fiber (50%/50%) blended fabric 1000g
Technological process: alkaline oxygen bath boil float, hot water wash, cold wash, dehydration and oven dry.
Alkaline oxygen bath boils and floats: temperature: 90 ℃, and time: 50min, waterglass (Na
2SiO
3) concentration: 7 g/L, pH value: 8,30% hydrogen peroxide solution (H
2O
2) concentration: 30g/L, sodium carbonate (Na
2CO
3) concentration: 2 g/L, refining agent concentration: 5 g/L, penetrating agent JFC concentration: 15 g/L.
Through PLA and soybean fiber blended knitted fabric after the above processing, whiteness is 48.03, and bursting strength is 197.0N, and strength damage is 8.37.
The embodiment of the invention 14: PLA and soybean fiber (50%/50%) blended fabric 1000g
Technological process: alkaline oxygen bath boil float, hot water wash, cold wash, dehydration and oven dry.
Alkaline oxygen bath boils and floats: temperature: 90 ℃, and time: 70min, waterglass (Na
2SiO
3) concentration: 7 g/L, pH value: 8,30% hydrogen peroxide solution (H
2O
2) concentration: 30g/L, sodium carbonate (Na
2CO
3) concentration: 2 g/L, refining agent concentration: 5 g/L, penetrating agent JFC concentration: 15 g/L.
Through PLA and soybean fiber blended knitted fabric after the above processing, whiteness is 47.53, and bursting strength is 190.0N, and strength damage is 11.30.
Can find out by embodiment 11 to embodiment 14: when boiling when floating 90 ℃ of temperature with times 50 min. fabric whiteness is best, strength damage is moderate.Therefore, selecting optimum boiling to float temperature, to be 90 ℃ be 50 min with the time.
Be different from prior art, in PLA and the soybean fiber blended knitted fabric boiling and bleaching process, H
2O
2Concentration is decided to be 30g/L, Na
2SiO
3Concentration is 5-7 g/L, and the pH value is selected 8-9,90 ℃ of temperature, and time 50min processes under the condition that relatively relaxes, and both can reach and boil the technology purpose of floating, and avoids damaging fabric again.
The above is merely embodiments of the invention; Be not so limit claim of the present invention; Every equivalent structure or equivalent flow process conversion that utilizes specification of the present invention to do, or directly or indirectly be used in other relevant technical fields, all in like manner be included in the scope of patent protection of the present invention.
Claims (4)
1. PLA and soybean protein blended fabric pre-treatment process; Its technological process comprises: fabric is prepared, alkaline oxygen bath boil float, hot water wash, cold wash, dehydration and oven dry; It is characterized in that prescription and condition that said alkaline oxygen bath boils in the drift journey are: 30% hydrogen peroxide solution (H
2O
2) concentration: 30g/L, sodium carbonate (Na
2CO
3) concentration: 2 g/L, waterglass (Na
2SiO
3) concentration: 5 ~ 7 g/L, refining agent concentration: 5 g/L, penetrating agent JFC concentration: 15 g/L, the pH value: 8 ~ 9, temperature: 90 ℃, the time: 50min.
2. PLA according to claim 1 and soybean protein blended fabric pre-treatment process is characterized in that said hot water wash: hot water wash 2 ~ 4 roads under 60 ℃ of temperature.
3. PLA according to claim 1 and soybean protein blended fabric pre-treatment process is characterized in that said cold wash: in temperature is to cross 1 road in the cold water below 20 ℃.
4. PLA according to claim 1 and soybean protein blended fabric pre-treatment process is characterized in that said oven dry: dry under 105 ℃ of temperature in temperature, be placed on cooling under the normal temperature again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103997418A CN102561006A (en) | 2011-12-06 | 2011-12-06 | Preprocessing technology for blended knitted fabric of polylactic acid and soy protein |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103997418A CN102561006A (en) | 2011-12-06 | 2011-12-06 | Preprocessing technology for blended knitted fabric of polylactic acid and soy protein |
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|---|---|
| CN102561006A true CN102561006A (en) | 2012-07-11 |
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ID=46407499
Family Applications (1)
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|---|---|---|---|
| CN2011103997418A Pending CN102561006A (en) | 2011-12-06 | 2011-12-06 | Preprocessing technology for blended knitted fabric of polylactic acid and soy protein |
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Cited By (2)
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| CN114753149A (en) * | 2022-01-13 | 2022-07-15 | 宜城成雄织造有限公司 | Low-temperature refined enzyme and preparation method thereof |
| CN115045118A (en) * | 2022-08-15 | 2022-09-13 | 福锐登(上海)数字科技有限公司 | Deodorizing fiber textile dyeing and finishing method and textile |
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2011
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Cited By (3)
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| CN114753149A (en) * | 2022-01-13 | 2022-07-15 | 宜城成雄织造有限公司 | Low-temperature refined enzyme and preparation method thereof |
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Application publication date: 20120711 |