The Experts below are selected from a list of 216 Experts worldwide ranked by ideXlab platform

Natee Srisawat - One of the best experts on this subject based on the ideXlab platform.

  • Influence of Ethylene Vinyl Acetate Contents on Properties and Crease Recovery of Slit Yarn from Polypropylene/High Density Polyethylene Blend
    Energy Procedia, 2014
    Co-Authors: Supaphorn Thumsorn, Natee Srisawat
    Abstract:

    Abstract Polymer blends of polypropylene (PP) and high density polyethylene (HDPE) were prepared in a single screw extruder. The blend ratios of PP/HDPE were set at 80/20 and 50/50. Ethylene vinyl acetate (EVA) was used as a blend modifier at contents of 0, 1, 3 and 5 phr. PP/HDPE blends were fabricated to slit yarn by the single screw extruder equipped with slit die. The effects of PP/HDPE blend ratios and EVA contents on properties of the blends were analyzed. Melt flow index (MFI) of the blends deCreased when incorporated with HDPE. DSC results showed two melting temperatures of PP and HDPE separately which indicated that these blends were immiscible at various contents of EVA. Crystallinity of PP in the blends inCreased with increasing HDPE contents with regardless on EVA contents. However, the Crease Recovery of the PP/HDPE blends slit yarn inCreased with increasing EVA contents.

  • influence of ethylene vinyl acetate contents on properties and Crease Recovery of slit yarn from polypropylene high density polyethylene blend
    Energy Procedia, 2014
    Co-Authors: Supaphorn Thumsorn, Natee Srisawat
    Abstract:

    Abstract Polymer blends of polypropylene (PP) and high density polyethylene (HDPE) were prepared in a single screw extruder. The blend ratios of PP/HDPE were set at 80/20 and 50/50. Ethylene vinyl acetate (EVA) was used as a blend modifier at contents of 0, 1, 3 and 5 phr. PP/HDPE blends were fabricated to slit yarn by the single screw extruder equipped with slit die. The effects of PP/HDPE blend ratios and EVA contents on properties of the blends were analyzed. Melt flow index (MFI) of the blends deCreased when incorporated with HDPE. DSC results showed two melting temperatures of PP and HDPE separately which indicated that these blends were immiscible at various contents of EVA. Crystallinity of PP in the blends inCreased with increasing HDPE contents with regardless on EVA contents. However, the Crease Recovery of the PP/HDPE blends slit yarn inCreased with increasing EVA contents.

Supaphorn Thumsorn - One of the best experts on this subject based on the ideXlab platform.

  • Influence of Ethylene Vinyl Acetate Contents on Properties and Crease Recovery of Slit Yarn from Polypropylene/High Density Polyethylene Blend
    Energy Procedia, 2014
    Co-Authors: Supaphorn Thumsorn, Natee Srisawat
    Abstract:

    Abstract Polymer blends of polypropylene (PP) and high density polyethylene (HDPE) were prepared in a single screw extruder. The blend ratios of PP/HDPE were set at 80/20 and 50/50. Ethylene vinyl acetate (EVA) was used as a blend modifier at contents of 0, 1, 3 and 5 phr. PP/HDPE blends were fabricated to slit yarn by the single screw extruder equipped with slit die. The effects of PP/HDPE blend ratios and EVA contents on properties of the blends were analyzed. Melt flow index (MFI) of the blends deCreased when incorporated with HDPE. DSC results showed two melting temperatures of PP and HDPE separately which indicated that these blends were immiscible at various contents of EVA. Crystallinity of PP in the blends inCreased with increasing HDPE contents with regardless on EVA contents. However, the Crease Recovery of the PP/HDPE blends slit yarn inCreased with increasing EVA contents.

  • influence of ethylene vinyl acetate contents on properties and Crease Recovery of slit yarn from polypropylene high density polyethylene blend
    Energy Procedia, 2014
    Co-Authors: Supaphorn Thumsorn, Natee Srisawat
    Abstract:

    Abstract Polymer blends of polypropylene (PP) and high density polyethylene (HDPE) were prepared in a single screw extruder. The blend ratios of PP/HDPE were set at 80/20 and 50/50. Ethylene vinyl acetate (EVA) was used as a blend modifier at contents of 0, 1, 3 and 5 phr. PP/HDPE blends were fabricated to slit yarn by the single screw extruder equipped with slit die. The effects of PP/HDPE blend ratios and EVA contents on properties of the blends were analyzed. Melt flow index (MFI) of the blends deCreased when incorporated with HDPE. DSC results showed two melting temperatures of PP and HDPE separately which indicated that these blends were immiscible at various contents of EVA. Crystallinity of PP in the blends inCreased with increasing HDPE contents with regardless on EVA contents. However, the Crease Recovery of the PP/HDPE blends slit yarn inCreased with increasing EVA contents.

Weidong Gao - One of the best experts on this subject based on the ideXlab platform.

  • Comprehensive evaluation of the fabric Crease Recovery property by the whole Recovery process
    Textile Research Journal, 2020
    Co-Authors: Lei Wang, Weidong Gao
    Abstract:

    Current standard methods specify the Recovery angle of a folded wrinkle in a controlled Recovery period as the evaluation standard for the fabric Crease Recovery property. Nevertheless, there are l...

  • Sequential image for measurement of fabric Crease Recovery angle
    Journal of The Textile Institute, 2015
    Co-Authors: Lei Wang, Jianli Liu, Ruru Pan, Weidong Gao
    Abstract:

    Crease Recovery, one of an essential property for assessing fabric usability, is often evaluated by Crease Recovery angle method. This paper presents an image registration method based on mutual information to measure the Crease Recovery angle. The mutual information of two random variables is a measure of their mutual dependence. The maximum normalized mutual information can be worked out when the positions of the free wing in both the rotated frame and the other frame achieve a perfect match. The difference of Recovery angles between two frames is defined as the rotated angle of the former frame when the normalized mutual information of the rotated frame and the latter frame is the maximum. Compared with Hough transform method, the Recovery angle measured by the proposed method is more accurate when the free wing bends. Besides, mutual information is also applied to determine the stable time when the Recovery process reaches a steady state by measuring it between a frame and the other frame which is cap...

  • Exploring the relationship between bending property and Crease Recovery of woven fabrics
    Journal of The Textile Institute, 2014
    Co-Authors: Lei Wang, Jianli Liu, Ruru Pan, Weidong Gao
    Abstract:

    Fabric bending property dictates fabric Crease behaviors. Exploring the relationship between fabric bending and Crease Recovery properties is important for better understanding of fabric performance. This paper presents the viscoelasticity modeling of a Creased fabric to characterize the torque and bending deformation by Crease Recovery and bending parameters, respectively. In the experiment, nine types of fabrics were selected to analyze the relation between bending property and Crease Recovery property. The bending rigidity (B) and the bending hysteresis moment (2HB) were measured by the KES-FB2 Pure Bending Tester. The initial angular velocity (IV) was measured by a dynamic Crease Recovery tester. The experimental results showed that B and 2HB generally deCrease at the beginning and then almost remain unchanged with the inCrease in IV. We used an exponential function to express the non-linear relation between bending rigidity and the initial angular velocity, and proved that the initial angular velocit...

  • Resilience of Crease Recovery of woven fabrics in repeated tests
    Textile Research Journal, 2014
    Co-Authors: Lei Wang, Jianli Liu, Ruru Pan, Weidong Gao
    Abstract:

    Fabrics are often subject to repeated creasing and bending deformations, such as elbow movements, and the resilience of Crease Recovery is an important property that affects fabric’s serviceability...

  • Automatic Measurement of Fabric Crease Recovery by Image Sequence Analysis
    Journal of Testing and Evaluation, 2014
    Co-Authors: Lei Wang, Jianli Liu, Ruru Pan, Jihong Liu, Weidong Gao
    Abstract:

    Crease Recovery is one of the most important performance properties of fabric that needs to be evaluated frequently for quality improvement and product development. It is often measured by tracking changes in Crease angle of a folded specimen in a certain period of time. This paper presents a new automated Crease Recovery testing system and the trial tests on fabrics with different fiber materials, different weave structures, and different folding methods. The system was designed to record and measure changes of the Crease angle in the entire Recovery process by using image sequence analysis techniques. Thus, both instantaneous and stable recoveries of the Crease angle can be quantified. The system also fully automates the folding, pressing, reading, and other operations on the specimen so that human interferences can be avoided. It was found that the fiber content of a fabric is a determinant factor for Crease Recovery performance and the weave structure can affect this performance to some extent. Crease Recovery also varies with the way of folding the specimen. The recoveries of fabrics with different fiber materials tend to stabilize in different durations, proving the universal testing time set in the current standard test methods is unsuitable for some fabrics.

Tanveer Hussain - One of the best experts on this subject based on the ideXlab platform.

  • modelling the properties of pigment dyed polyester cotton sheeting fabrics by response surface methodology
    Coloration Technology, 2013
    Co-Authors: Tanveer Hussain, Maarij Ahmad, Rashid Masood
    Abstract:

    The aim of this study was to model the effect of pigment, binder and fixer concentrations on the rubbing fastness, Crease Recovery, tear strength and stiffness of pigment-dyed polyester/cotton sheeting fabrics. The design and analysis of experiments were carried out using Minitab® statistical software according to the central composite design of response surface methodology. It was found that an inCrease in the binder concentration significantly improves the dry rubbing fastness, Crease Recovery and stiffness of the fabric, with a corresponding deCrease in fabric tear strength, without significantly affecting the wet rubbing fastness. An inCrease in the fixer concentration significantly improves both the dry and wet rubbing fastness and Crease Recovery, with a deCrease in fabric tear strength and stiffness. The effect of binder and fixer concentrations on Crease Recovery was not linear and there was significant negative interaction between these factors for dry rubbing fastness. The effect of pigment concentration was not found to be statistically significant for the types and range of concentrations of pigment, binder and fixer used in this study.

  • Modelling the properties of pigment‐dyed polyester/cotton sheeting fabrics by response surface methodology
    Coloration Technology, 2013
    Co-Authors: Tanveer Hussain, Maarij Ahmad, Rashid Masood
    Abstract:

    The aim of this study was to model the effect of pigment, binder and fixer concentrations on the rubbing fastness, Crease Recovery, tear strength and stiffness of pigment-dyed polyester/cotton sheeting fabrics. The design and analysis of experiments were carried out using Minitab® statistical software according to the central composite design of response surface methodology. It was found that an inCrease in the binder concentration significantly improves the dry rubbing fastness, Crease Recovery and stiffness of the fabric, with a corresponding deCrease in fabric tear strength, without significantly affecting the wet rubbing fastness. An inCrease in the fixer concentration significantly improves both the dry and wet rubbing fastness and Crease Recovery, with a deCrease in fabric tear strength and stiffness. The effect of binder and fixer concentrations on Crease Recovery was not linear and there was significant negative interaction between these factors for dry rubbing fastness. The effect of pigment concentration was not found to be statistically significant for the types and range of concentrations of pigment, binder and fixer used in this study.

  • predicting the Crease Recovery performance and tear strength of cotton fabric treated with modified n methylol dihydroxyethylene urea and polyethylene softener
    Coloration Technology, 2010
    Co-Authors: Tanveer Hussain, Farhan Qaiser
    Abstract:

    This study aimed at developing a model for predicting the Crease Recovery performance and tear strength of cotton fabric using modified N-methylol dihydroxyethylene urea, polyethylene softener, catalyst, curing time and curing temperature as the predictor variables. A quarter factorial design was constructed and, based on the experimental results, regression models were built to predict Crease Recovery angle and tear strength of the treated fabric. All experimental design and statistical analysis steps were implemented, using Minitab statistical software.

  • Predicting the Crease Recovery performance and tear strength of cotton fabric treated with modified N‐methylol dihydroxyethylene urea and polyethylene softener
    Coloration Technology, 2010
    Co-Authors: Tanveer Hussain, Farhan Qaiser
    Abstract:

    This study aimed at developing a model for predicting the Crease Recovery performance and tear strength of cotton fabric using modified N-methylol dihydroxyethylene urea, polyethylene softener, catalyst, curing time and curing temperature as the predictor variables. A quarter factorial design was constructed and, based on the experimental results, regression models were built to predict Crease Recovery angle and tear strength of the treated fabric. All experimental design and statistical analysis steps were implemented, using Minitab statistical software.

Lei Wang - One of the best experts on this subject based on the ideXlab platform.

  • Comprehensive evaluation of the fabric Crease Recovery property by the whole Recovery process
    Textile Research Journal, 2020
    Co-Authors: Lei Wang, Weidong Gao
    Abstract:

    Current standard methods specify the Recovery angle of a folded wrinkle in a controlled Recovery period as the evaluation standard for the fabric Crease Recovery property. Nevertheless, there are l...

  • Sequential image for measurement of fabric Crease Recovery angle
    Journal of The Textile Institute, 2015
    Co-Authors: Lei Wang, Jianli Liu, Ruru Pan, Weidong Gao
    Abstract:

    Crease Recovery, one of an essential property for assessing fabric usability, is often evaluated by Crease Recovery angle method. This paper presents an image registration method based on mutual information to measure the Crease Recovery angle. The mutual information of two random variables is a measure of their mutual dependence. The maximum normalized mutual information can be worked out when the positions of the free wing in both the rotated frame and the other frame achieve a perfect match. The difference of Recovery angles between two frames is defined as the rotated angle of the former frame when the normalized mutual information of the rotated frame and the latter frame is the maximum. Compared with Hough transform method, the Recovery angle measured by the proposed method is more accurate when the free wing bends. Besides, mutual information is also applied to determine the stable time when the Recovery process reaches a steady state by measuring it between a frame and the other frame which is cap...

  • Exploring the relationship between bending property and Crease Recovery of woven fabrics
    Journal of The Textile Institute, 2014
    Co-Authors: Lei Wang, Jianli Liu, Ruru Pan, Weidong Gao
    Abstract:

    Fabric bending property dictates fabric Crease behaviors. Exploring the relationship between fabric bending and Crease Recovery properties is important for better understanding of fabric performance. This paper presents the viscoelasticity modeling of a Creased fabric to characterize the torque and bending deformation by Crease Recovery and bending parameters, respectively. In the experiment, nine types of fabrics were selected to analyze the relation between bending property and Crease Recovery property. The bending rigidity (B) and the bending hysteresis moment (2HB) were measured by the KES-FB2 Pure Bending Tester. The initial angular velocity (IV) was measured by a dynamic Crease Recovery tester. The experimental results showed that B and 2HB generally deCrease at the beginning and then almost remain unchanged with the inCrease in IV. We used an exponential function to express the non-linear relation between bending rigidity and the initial angular velocity, and proved that the initial angular velocit...

  • Resilience of Crease Recovery of woven fabrics in repeated tests
    Textile Research Journal, 2014
    Co-Authors: Lei Wang, Jianli Liu, Ruru Pan, Weidong Gao
    Abstract:

    Fabrics are often subject to repeated creasing and bending deformations, such as elbow movements, and the resilience of Crease Recovery is an important property that affects fabric’s serviceability...

  • Automatic Measurement of Fabric Crease Recovery by Image Sequence Analysis
    Journal of Testing and Evaluation, 2014
    Co-Authors: Lei Wang, Jianli Liu, Ruru Pan, Jihong Liu, Weidong Gao
    Abstract:

    Crease Recovery is one of the most important performance properties of fabric that needs to be evaluated frequently for quality improvement and product development. It is often measured by tracking changes in Crease angle of a folded specimen in a certain period of time. This paper presents a new automated Crease Recovery testing system and the trial tests on fabrics with different fiber materials, different weave structures, and different folding methods. The system was designed to record and measure changes of the Crease angle in the entire Recovery process by using image sequence analysis techniques. Thus, both instantaneous and stable recoveries of the Crease angle can be quantified. The system also fully automates the folding, pressing, reading, and other operations on the specimen so that human interferences can be avoided. It was found that the fiber content of a fabric is a determinant factor for Crease Recovery performance and the weave structure can affect this performance to some extent. Crease Recovery also varies with the way of folding the specimen. The recoveries of fabrics with different fiber materials tend to stabilize in different durations, proving the universal testing time set in the current standard test methods is unsuitable for some fabrics.