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Compositions and methods for dying natural fibers with natural dyes to ensure color (hue and shade)-match consistency

a technology of natural fibers and dyes, applied in the direction of dyeing process, liquid/gas/vapor treatment of definite length materials, instruments, etc., can solve the problem of eluded artisan dyeing from batch to batch, the most difficult to achieve consistent hue and shade matching, and prior art attempts to solve this problem between batches have failed. problem, to achieve the effect of ensuring color (hue and shade)matching consistency, reducing dye waste, and enhancing dye penetration

Inactive Publication Date: 2015-08-06
RAMBLERS WAY FARM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The present invention provides a way to dye natural fibers with natural dyes while ensuring uniform hue and shade-match between different batches. This is achieved by using a ferrous sulfate solution at specific concentrations and processes, combined with loosely wound yarn packages. Additionally, a system of spectrophotometers allows for precise hue and shade-matching between different batches with minimal dye waste. Overall, this invention allows for efficient and effective dyeing of natural fibers.

Problems solved by technology

However, consistent, uniform hue and shade-matching of dyed materials from batch-to-batch has eluded even the most practiced artisan.
Consistent hue and shade-matching is the most difficult to achieve both within a batch and between batches.
Prior art attempts to solve this problem between batches have failed.
However, the production and use of synthetic dyes results in vast quantities of toxic waste materials that need to be managed.
Still, even when faced with the waste problem caused by the use of synthetic dyes, the commercial dyeing industry has rejected the use of natural dyes because of the aforementioned inconsistency in hue and shade-matching, among other challenges.

Method used

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  • Compositions and methods for dying natural fibers with natural dyes to ensure color (hue and shade)-match consistency
  • Compositions and methods for dying natural fibers with natural dyes to ensure color (hue and shade)-match consistency
  • Compositions and methods for dying natural fibers with natural dyes to ensure color (hue and shade)-match consistency

Examples

Experimental program
Comparison scheme
Effect test

example 1

Dyeing Chocolate (Brown) Color

[0034]This example provides one specific procedure used to mordant and dye wool yarn. One of ordinary skill in the art, when provided with the teachings of this specification, will be able to modify the procedure with regard to other dye colors and fibers (materials).[0035]Prepare dyeing vat by adding clean water at ˜190° F.[0036]Add mordant chemicals per formula based on % of WOG[0037]15% Aluminum Sulfate[0038]6% cream of tartar[0039]Add material to be dyed[0040]Contact material with mordant solution for ˜60 min while maintain temperature at ˜190° F.[0041]Drain mordant solution; keep material wet[0042]Add dye per formula based on % of WOG[0043]2.5% Logwood[0044]10% Cutch[0045]0.5% Madder[0046]1% calcium carbonate[0047]Maintain temperature of ˜190° F.[0048]Run dyeing process until spectrophotometer readings indicate target color and shade are obtained (approx. 30 minutes).[0049]drain dye solution[0050]Add 3% solution of iron salts (ferrous sulfate) at ˜...

example 2

Other Dye Colors

[0054]The general procedure outlined above in Example 1 can be used with minor modification with regard to other dye colors. One of ordinary skill in the art, provided with the teachings of this specification, will be able to adapt the procedure above without undue experimentation. Dye formulations for numerous other colors are provided below. All percents are approximate within ±20% and may be modified by one of skill in the art as desired. For example, different lots of dye or dye from different suppliers may require minor adjustments in the amounts of dye used. All formulas are based on percent of WOG (weight of goods) to be dyed unless otherwise noted. Mordant formulas are also noted below. Other dye formulations can be developed by one of ordinary skill in the art when provide with the teachings of this specification

Sage

[0055]Mordant[0056]15% Aluminum Sulfate[0057]6% Cream of Tartar[0058]Dye[0059]1.5% Hermatine HS or Logwood[0060]3.5% Fustic or Osage

French Madde...

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Abstract

This invention discloses novel and nonobvious compositions and methods suitable for the dyeing of natural fibers with natural dyes that ensure shade-match consistency.

Description

BACKGROUND[0001]The use of natural dyes for the dyeing of natural yarns and fabrics has been known since the beginning of recorded history. However, consistent, uniform hue and shade-matching of dyed materials from batch-to-batch has eluded even the most practiced artisan. Consistent hue and shade-matching is the most difficult to achieve both within a batch and between batches. Prior art attempts to solve this problem between batches have failed. The dyeing industry has turned to synthetic dyes because they afford greater control over the dyeing process and can achieve the desired hue and shade-match consistency. However, the production and use of synthetic dyes results in vast quantities of toxic waste materials that need to be managed. Still, even when faced with the waste problem caused by the use of synthetic dyes, the commercial dyeing industry has rejected the use of natural dyes because of the aforementioned inconsistency in hue and shade-matching, among other challenges. Th...

Claims

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Application Information

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IPC IPC(8): D06P1/00
CPCD06P1/0032D06P5/02D06B19/00D06P1/34D06P1/67375D06B23/10G01N33/365D06P1/6533D06P1/6735D06P1/65118D06P1/67341D06B5/16
Inventor CHAPPELL, THOMASMONKS, DAVID
Owner RAMBLERS WAY FARM
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