Title

Can Both Synthetic and Naturak Dyeing Methods Be Combined to Create a New Dyeing Method

Author(s)

Nam Nguyen, SVHS

School Name

Spring Valley High School

Grade Level

10th Grade

Presentation Topic

Consumer Science

Presentation Type

Non-Mentored

Abstract

The experiment was conducted in order to see if synthetic and natural dyes can be used together to make a dye mixture. It was hypothesized that both test groups will maintain an average of 4 by the end, with the mordant group having a higher average. Testing was done by dyeing cotton swatches with the dye mixtures (made with store-bought synthetic dye and homemade natural dye). The swatches then went through 5 fastness trials, their final status was recorded based on a scale of 1-5. The same swatches were used throughout the fastness trials, no new swatches were introduced. The mean of each fastness trial from each data sets were taken, and 6 independent t-tests were used to see significance between the two means. The p-values for the start, trial 1, trial 2, trial 3, trial 4, and trial 5 are .369, .438, 0, 0, .003, and .136 respectively. Using an alpha value of .05 with p<.05, trials 2, 3, and 4 showed significance while the p values at the start, trial 1, and trial 5 do not. The t-values for the start, trial 1, trial 2, trial 3, trial 4, and trial 5 are .91, .78, 7.42, 5.06, 3.29, and 1.53 respectively. Using a critical value of 1.311, trials 2 through 5 showed significance, while the start and trial 1 did not. This shows that there is no significance difference between the two datasets at the start and towards the end, which means that there could be no difference overall, should more fastness trials be conducted.

Location

Neville 222

Start Date

4-14-2018 9:15 AM

Presentation Format

Oral and Written

COinS
 
Apr 14th, 9:15 AM

Can Both Synthetic and Naturak Dyeing Methods Be Combined to Create a New Dyeing Method

Neville 222

The experiment was conducted in order to see if synthetic and natural dyes can be used together to make a dye mixture. It was hypothesized that both test groups will maintain an average of 4 by the end, with the mordant group having a higher average. Testing was done by dyeing cotton swatches with the dye mixtures (made with store-bought synthetic dye and homemade natural dye). The swatches then went through 5 fastness trials, their final status was recorded based on a scale of 1-5. The same swatches were used throughout the fastness trials, no new swatches were introduced. The mean of each fastness trial from each data sets were taken, and 6 independent t-tests were used to see significance between the two means. The p-values for the start, trial 1, trial 2, trial 3, trial 4, and trial 5 are .369, .438, 0, 0, .003, and .136 respectively. Using an alpha value of .05 with p<.05, trials 2, 3, and 4 showed significance while the p values at the start, trial 1, and trial 5 do not. The t-values for the start, trial 1, trial 2, trial 3, trial 4, and trial 5 are .91, .78, 7.42, 5.06, 3.29, and 1.53 respectively. Using a critical value of 1.311, trials 2 through 5 showed significance, while the start and trial 1 did not. This shows that there is no significance difference between the two datasets at the start and towards the end, which means that there could be no difference overall, should more fastness trials be conducted.