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Method for reducing textile crease and improving textile contact feel

A tactile and wrinkled technology, applied in chemical instruments and methods, textiles and papermaking, improved hand-feeling fibers, etc., can solve problems such as low durable pressure performance and lack of performance

Inactive Publication Date: 2002-08-21
NAT STARCH & CHEM INVESTMENT HLDG CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these preparations all have a common shortcoming, they all have lower durable pressure performance
In Japanese patent publication 53044-567, there are finishing agents obtained by the reaction of vinyl urea and glyoxal, but they do not possess satisfactory performance

Method used

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  • Method for reducing textile crease and improving textile contact feel

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] 106.2 g of diethanolamine and 61.24 g of urea were charged to a 250 ml flask equipped with a condenser, thermometer, stirrer and nitrogen purged probe. The mixture was heated to 115°C for 5 hours. A nitrogen purge is used to remove the ammonia that is produced. The reaction process was monitored by titrating the remaining diethanolamine with 0.1N hydrochloric acid. A clear liquid was obtained, containing N,N-bis (2-hydroxyethyl)urea.

[0037] The following amines in Examples 2-7 were reacted with urea according to the procedure in Example 1.

[0038] Weight Urea Example Amine g g ethanolamine 61 603 3-amino-1-propanol 150 604 2-amino-2-ethyl-1,3-propanediol 119 30

[0039] (AEPD)

[0040] Ethanolamine 122 606 Diethanolamine 210 607 4-Aminobutanol 12 4

Embodiment 8

[0042] 212.4 g diethanolamine in 212.4 g water, neutralized to pH 4 with 101.85 g concentrated sulfuric acid. A solution of 168.99 g of potassium cyanate in 260 g of water was then added and the mixture was heated to 90°C for 3 hours. After cooling to ambient temperature, potassium sulfate precipitated out and was filtered. The filter cake was washed with 425 g of hot ethanol. The recovered ethanol is added to the filtrate to make the filtrate cloudy. The white precipitate was removed by filtration, and then the ethanol was evaporated to obtain a viscous liquid solution of N,N-bis(2-hydroxyethyl)urea. The product can be obtained by neutralizing the amine with another acid, such as sulfuric acid. Other cyanates may also be used, such as sodium cyanate.

Embodiment 9

[0044] According to the steps of Example 8, 195.22 g of N-methyl-D-glucosamine in 200 g of water was reacted with 98.08 g of sulfuric acid. After adjusting the pH to 4, 81.11 g of potassium cyanate was added to the flask containing 100 g of water. The mixture was heated to 70°C for 2 hours. After cooling to 0°C, the by-product precipitated potassium sulfate was removed by filtration. The filtrate was treated with 250 mL of hot methanol and filtered to remove residual salt by-products. Methanol was distilled off in vacuo to obtain a solution containing N-methyl-D-glucuronide.

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Abstract

The present invention is directed to a method for treating a material to impart wrinkle reduction and temporary crease resistance thereto, and improve feel. The method involves: applying to said material a solution of a treatment composition in an amount effective to impart temporary crease and stain resistance, said treatment composition contains a hydroxy urea or hydroxy amide compound; and allowing said treatment composition to dry at ambient temperature, wherein said hydroxy urea compound comprises one urea and at least one hydroxyl group and said hydroxy amide compound comprises at least one amide group and at least one hydroxyl group. The material treatment is useful in reducing wrinkles in clothing, improving the feel of fabrics, and increasing the moisture adsorbence and retention in natural and synthetic fabrics.

Description

technical field [0001] The present invention relates to the use of a treatment composition comprising a hydroxyurea or hydroxyamide compound for reducing wrinkling, providing temporary wrinkle resistance and improving the hand (touch) of fabrics and increasing the moisture absorption capacity of fabrics. More specifically, the method of the present invention involves applying the hydroxy compound to a material as a solution, neat or as a spray, and allowing the material to dry at ambient temperature without heating from an external heat source. The treatment compositions of the present invention may also be used in laundry detergents or fabric softeners. Background of the invention [0002] Clothing, fabric, and other materials have a better sheen when they are not wrinkled than when the same material is wrinkled. Accordingly, many methods of reducing the wrinkling of clothing and other materials, as well as wrinkle-resistant materials, have been developed. It is well know...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C11D3/00C11D3/32D06M13/419D06M13/432
CPCD06M2200/50C11D3/323C11D3/32D06M13/419D06M2200/20D06M13/432C11D3/0015
Inventor K·A·罗德里古斯S·H·古德森
Owner NAT STARCH & CHEM INVESTMENT HLDG CORP
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