Method for dyeing and finishing deodorizing fiber textile and textile

Abstract

Disclosed are a method for dyeing and finishing a textile and a textile. The method includes steps of heating a bath liquid to a first temperature, and immersing a textile to be treated in the bath liquid for a first time; maintaining the bath liquid at the first temperature, adding a dye, a protective additive and a first part of a dyeing alkali agent sequentially thereto at a certain interval, and further immersing for a second time; heating the bath liquid to a second temperature at a first heating rate, then adding a second part of the dyeing alkali agent thereto, further immersing for a third time, and then taking out to obtain a dyed textile; washing and finishing the dyed textile to obtain a dyed and finished textile, wherein the dyeing alkali agent is sodium carbonate.

1 . A method for dyeing and finishing a deodorizing fiber textile, comprising the following steps:
 S1, heating a bath liquid to a first temperature, and immersing a textile to be treated in the bath liquid for a first time;   S2, maintaining the bath liquid at the first temperature, adding a dye, a protective additive and a first part of a dyeing alkali agent sequentially thereto at a certain interval, and further immersing for a second time;   S3, heating the bath liquid to a second temperature at a first heating rate, adding a second part of the dyeing alkali agent thereto, further immersing for a third time, and then taking out, to obtained a dyed textile; and   S4, washing and finishing the dyed textile to obtain a dyed and finished textile,   wherein the dyeing alkali agent is divided into two parts, i.e. the first part and the second part, and the dyeing alkali agent is sodium carbonate.   
     
     
         2 . The method of  claim 1 , further comprising a bleaching pretreatment step prior to step S1, the bleaching pretreatment step comprising
 preS1, preparing a bleaching liquid, and adjusting a pH value of the bleaching liquid to be in a range of 9-9.5 by adding a pH regulator, wherein the bleaching liquid is a solution comprising 0.1-1 g/L of a degreaser, 0.1-1 g/L of a penetrant, and 0.1-1 g/L of a complexing agent, and the pH regulator is at least one selected from the group consisting of sodium carbonate and hydrogen peroxide, with the proviso that an amount of hydrogen peroxide does not exceed 2 g/L;   preS2, bleaching and boiling a textile in the bleaching liquid at a temperature of 70-80° C. for 5-100 min to obtained a bleached textile; and   preS3, sequentially subjecting the bleached textile to washing with hot water with a temperature of 50-60° C. for 10-20 min, washing with clean water at room temperature, washing with a glacial acetic acid aqueous solution with a concentration of 0.1-1 g/L, and washing with deionized water to wash off the glacial acetic acid, to obtain the textile to be treated.   
     
     
         3 . The method of  claim 2 , wherein in step S4, washing and finishing the dyed textile comprises adding deionized water to the glacial acetic acid and adjusting a pH value of the resulting system to be in a range of 4.5-5.5 to obtain a washing solution, then immersing the dyed textile in the washing solution for 10-30 min, and finally washing off the glacial acetic acid on the textile with deionized water. 
     
     
         4 . The method of  claim 3 , wherein the first part of the dyeing alkali agent accounts for 25%-40% by weight of the total amount of the dyeing alkali agent, and the second part of the dyeing alkali agent accounts for 60%-75% by weight of the total amount of the dyeing alkali agent. 
     
     
         5 . The method of  claim 3 , wherein step S2 is performed by adding the protective additive at an interval of 10-20 min after adding the dye, and then adding the first part of the dyeing alkali agent at an interval of 10-20 min. 
     
     
         6 . The method of  claim 3 , wherein the first temperature is in a range of 30-45° C., and the first time is in a range of 5-15 min;
 the second temperature is in a range of 55-70° C., and the second time is in a range of 5-15 min; 
 the third time is in a range of 50-60 min; 
 the first heating rate is in a range of 0.5-2° C./min; and 
 the pH value of the bath liquid during the third time period is in a range of 10-10.5. 
 
     
     
         7 . The method of  claim 6 , wherein the first temperature is 40° C., and the first time is 15 min;
 the second temperature is 60° C., and the second time is 5 min; 
 the third time is 60 min; and 
 the first heating rate is 1° C./min. 
 
     
     
         8 . The method of  claim 3 , further comprising in step S1, measuring a hardness of the bath liquid during the first time period, and optionally adding a complexing agent thereto to reduce the hardness of the bath liquid to be not more than 100 ppm according to measurement results. 
     
     
         9 . The method of  claim 3 , wherein the protective additive is sodium sulfate. 
     
     
         10 . A deodorizing fiber textile obtained by dyeing and finishing according to a method comprising the following steps:
 S1, heating a bath liquid to a first temperature, and immersing a textile to be treated in the bath liquid for a first time;   S2, maintaining the bath liquid at the first temperature, adding a dye, a protective additive and a first part of a dyeing alkali agent sequentially thereto at a certain interval, and further immersing for a second time;   S3, heating the bath liquid to a second temperature at a first heating rate, adding a second part of the dyeing alkali agent thereto, further immersing for a third time, and then taking out, to obtained a dyed textile; and   S4, washing and finishing the dyed textile to obtain a dyed and finished textile, wherein the dyeing alkali agent is divided into two parts, i.e. the first part and the second part, and the dyeing alkali agent is sodium carbonate.   
     
     
         11 . The deodorizing fiber textile of  claim 10 , wherein the method further comprises a bleaching pretreatment step prior to step S1, the bleaching pretreatment step comprising
 preS1, preparing a bleaching liquid, and adjusting a pH value of the bleaching liquid to be in a range of 9-9.5 by adding a pH regulator, wherein the bleaching liquid is a solution comprising 0.1-1 g/L of a degreaser, 0.1-1 g/L of a penetrant, and 0.1-1 g/L of a complexing agent, and the pH regulator is at least one selected from the group consisting of sodium carbonate and hydrogen peroxide, with the proviso that an amount of hydrogen peroxide does not exceed 2 g/L;   preS2, bleaching and boiling a textile in the bleaching liquid at a temperature of 70-80° C. for 5-100 min to obtained a bleached textile; and   preS3, sequentially subjecting the bleached textile to washing with hot water with a temperature of 50-60° C. for 10-20 min, washing with clean water at room temperature, washing with a glacial acetic acid aqueous solution with a concentration of 0.1-1 g/L, and washing with deionized water to wash off the glacial acetic acid, to obtain the textile to be treated.   
     
     
         12 . The deodorizing fiber textile of  claim 11 , wherein in step S4, washing and finishing the dyed textile comprises adding deionized water to the glacial acetic acid and adjusting a pH value of the resulting system to be in a range of 4.5-5.5 to obtain a washing solution, then immersing the dyed textile in the washing solution for 10-30 min, and finally washing off the glacial acetic acid on the textile with deionized water. 
     
     
         13 . The deodorizing fiber textile of  claim 12 , wherein the first part of the dyeing alkali agent accounts for 25%-40% by weight of the total amount of the dyeing alkali agent, and the second part of the dyeing alkali agent accounts for 60%-75% by weight of the total amount of the dyeing alkali agent. 
     
     
         14 . The deodorizing fiber textile of  claim 12 , wherein step S2 is performed by adding the protective additive at an interval of 10-20 min after adding the dye, and then adding the first part of the dyeing alkali agent at an interval of 10-20 min. 
     
     
         15 . The deodorizing fiber textile of  claim 12 , wherein the first temperature is in a range of 30-45° C., and the first time is in a range of 5-15 min;
 the second temperature is in a range of 55-70° C., and the second time is in a range of 5-15 min; 
 the third time is in a range of 50-60 min; 
 the first heating rate is in a range of 0.5-2° C./min; and 
 the pH value of the bath liquid during the third time period is in a range of 10-10.5. 
 
     
     
         16 . The deodorizing fiber textile of  claim 15 , wherein the first temperature is 40° C., and the first time is 15 min;
 the second temperature is 60° C., and the second time is 5 min; 
 the third time is 60 min; and 
 the first heating rate is 1° C./min. 
 
     
     
         17 . The deodorizing fiber textile of  claim 12 , wherein the method further comprises in step S1, measuring a hardness of the bath liquid during the first time period, and optionally adding a complexing agent thereto to reduce the hardness of the bath liquid to be not more than 100 ppm according to measurement results. 
     
     
         18 . The deodorizing fiber textile of  claim 12 , wherein the protective additive is sodium sulfate.