Colored Bedding Hem Colorfastness for Industrial Hospitality Washing
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Solution Overview
Problem
Hospitality linens face significant color fading and bleeding issues due to extreme washing conditions in the hospitality industry, which current technologies have not adequately addressed, limiting the use of multi-colored products.
Innovation Solution
A method for producing bedding products with a colored hem that involves selecting appropriate fabrics and dyes based on composition, preparing the fabric through mercerization and multiple-stage washing to ensure colorfastness, and attaching the colored hem to the bedding product body using a strong stitching method.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If hospitality linens are subjected to strenuous laundering processes with high temperatures and commercial grade surfactants, then cleanliness standards are met, but color fading and bleeding occur
Solution Approach 1:
The bedding product is divided into two distinct fabric components: a colorfast body fabric and a colored hem fabric. The hem fabric is specifically treated with multiple dyes and undergoes multiple-stage washing to achieve colorfastness, while the body fabric remains undyed or lightly colored. This segmentation allows different parts of the product to have different functional properties - the hem retains color while the body maintains cleanliness durability.
Solution Approach 2:
The colored hem fabric undergoes preliminary colorfastness treatment before final product assembly. This includes applying multiple dyes in sequence, followed by multiple-stage washing processes to pre-remove excess dye and set the color. This preliminary action ensures the hem can withstand subsequent hospitality laundering without bleeding, resolving the contradiction between color retention and washing durability.
2Adaptability or versatility
If multiple dyes are applied to achieve colored hem, then color variety is improved, but color bleeding onto other portions increases
Solution Approach 1:
The hem fabric undergoes multiple-stage washing processes after dye application to pre-remove excess dye and set the color before final product assembly. This preliminary colorfastness treatment ensures that when the product is later laundered in hospitality settings, the dyes remain fixed and do not bleed onto the body fabric or other portions.
Solution Approach 2:
Different fabric regions are treated differently: the hem fabric receives multiple dye applications and extensive washing treatment to achieve colorfastness, while the body fabric is either undyed or receives minimal treatment. This local differentiation allows the hem to display color variety while the overall product maintains color stability during use and washing.
3Illumination intensity
If fabric composition is optimized for color absorption, then color intensity is improved, but colorfastness during washing deteriorates
Solution Approach 1:
The hem fabric undergoes multiple-stage washing processes after dye application to pre-remove excess dye and set the color before final product assembly. This preliminary treatment ensures that when the product is later laundered in hospitality settings, the dyes remain fixed and do not bleed, achieving both color intensity and colorfastness.
Solution Approach 2:
The dyeing process uses multiple dyes applied in sequence with specific concentrations and washing conditions. The multiple-stage washing process gradually reduces excess dye while setting the colorfastness, optimizing both color intensity and washing durability through controlled parameter changes in the dyeing and washing processes.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The method achieves substantial colorfastness, preventing fading and bleeding during industrial washes, extending the product's lifespan to over 50 washes under harsh hospitality washing conditions.
Implementation Method 1
preparing the fabric through mercerization
Implementation Method 2
applying dyes to the fabric
Implementation Method 3
passing the fabric through a multiple stage wash to substantially remove unfixed dyes from the hem fabric
Data Source
AI summary
A bedding product having a colored hem and methods of making the same are disclosed. The bedding product can have a plain body attached to a colored hem which is made color fast so as to inhibit fading of the colored hem and/or prevent bleeding, crocking, and/or running of color from the colored hem onto the plain body during the useful life of the bedding product. The colored hem can be made color fast by a method including selecting a fabric, selecting dyes based on the fabric, preparing the fabric such as by mercerizing, applying the dyes, and treating the dyed fabric to remove unfixed dyes contained in the fabric to improve subsequent colorfastness.