The Changes of Appearance Formability of Hanji Blended Fabrics after Fusing

In order to examine the changes in the appearance properties and the post-adhesion appearance properties of Hanji yarn blended fabrics : 100% Hanji yarn fabric, two kinds of cotton / Hanji yarn blended fabrics and 100% cotton fabric, were selected and fused with three kinds of interlinings. After fusing, changes of standardized KES values were examined.<br/>1. W/T, B/W of Hanji yarn blended fabrics was higher than that cotton fabric. WC/W, 2HB/W, 2HB/B, and 2HG/G values of Hanji yarn blended fabrics are lower than cotton fabric. This means that the Hanji yarn was mixed, shape retention, wrinkle recovery was improved, and the drape property was lowered. 2. After fusing, W/T, shape retention, wrinkle recovery of Hanji yarn blended fabrics increased, and WC/W values of Hanji yarn blended fabrics decreased. The wrinkle recovery property of Hanji yarn blended fabrics were improved; however, the 2HG/G value of Hanji yarn fabric increased due to fusing, and the wrinkle recovery property of Hanji yarn fabric decreased. 3. In the selection of adhesive core, I1 adhesive core is excellent in terms of shape stability and wrinkle recovery; however, an I3 adhesive core is recommended for drape and silhouette formation. When the fabric of the adhesive core was PET, it was found to penetrate better between the fabrics during adhesion than the case of cotton fabrics.

Effects of varying the standard deviation of the luminance on the appearance of food, flavour expectations, and taste/flavour perception

What we taste is affected by what we see, and that includes the colour, opacity, and shape of the food we consume. We report two experiments designed to investigate how the standard deviation (SD) of the luminance distribution of food images influences the perceived visual texture and the taste/flavour experience by using the latest Augmented Reality (AR) technology. We developed a novel AR system capable of modifying the luminance distribution of foods in real-time using dynamic image processing for simulating actual eating situations. Importantly, this form of dynamic image manipulation does not change the colour on the food (which has been studied extensively previously). Instead, the approach outlined here was used to change the SD of the luminance distribution of the food while keeping the chromaticity, the average luminance, and the skewness constant. We investigated the effects of changing the luminance SD distribution of Baumkuchen (a German baked cake) and tomato ketchup on visual perception, flavour expectations, and the ensuing taste experience. Participants looked at a piece of Baumkuchen (Experiment 1) or a spoonful of tomato ketchup (Experiment 2) having different luminance distributions and evaluated the taste on sampling the food. Manipulating the SD of the luminance distribution affected not only the expected taste/flavour of the food (e.g. expected moistness, wateriness and deliciousness), but also the actual taste properties on sampling the food itself. The novel food modification method and system outlined here can therefore potentially be used to control the taste/flavour of different foods crossmodally by means of modifying their appearance properties (specifically the SD of the luminance distribution while keeping other aspects of image statistics constant), and can do so in real time, without the need for food markers.

The Influence of NIR Pigments on Coil Coatings’ Thermal Behaviors

The effect of over-heating in urban areas, called the urban heat island effect (UHI effect), is responsible for greater energy consumption for cooling buildings. Several reflective near-infrared (NIR) coatings, called cool coatings have proved to be effective for contrasting the UHI effect. The thermal and appearance properties of cool coatings depend on the color and they often have been studied only at the initial state, without undergoing atmospheric degradation and soiling. In this work, the thermal, visual and durability behaviors of red and brown polyester-based organic coatings for roof applications were studied. All samples were subjected to accelerated degradation cycles composed of UV-B and salt spray chamber exposure. The sample degradation was assessed by infrared spectroscopy, gloss and colorimetric analyses. Moreover, the thermal behavior was studied by means of a simplified experimental setup. Finally, a soiling and weathering test was conducted to simulate the soiling of three years’ external exposure. Despite the phenomena of chemical degradation and a decrease in aesthetic properties, the samples maintain their thermal performance, which is not even influenced by dirt products. In addition, NIR pigments significantly improve the thermal behavior of brown coatings.

Appearance Performance of Commercial Hijab Fabrics

Muslim women is required to wear hijab as a religion obligation which symbolizes women’s faith to the creator (Quran 24:21). Many types of hijab are available in market, with ready-to-wear (RTW) hijab being the most popular choice of hijab in Malaysia. Limited knowledge on fabric characteristics among consumers has created dissatisfaction in many aspects of hijab performance associated to appearance and comfort. This paper presented the study of hijab appearance performances. Ten commercial fabrics (Cotton, Tetron Cotton, silk, rayon, Crepe back satin, Valentino dull satin, chiffon crepe, French voile, and Koshibo) which are commonly used in hijab making, were investigated. Stiffness, drape, wrinkle aspect, pilling, and snagging of fabric, which are associated with hijab appearance, were examined. A fabric ranking index was then developed to further support the analysis. In order to validate the result, a wear test was conducted where the tested fabrics were develop into hijabs and wear assessment was conducted. Feedback from the respondents were obtained and compared with the fabric ranking index. The results of this study concluded that Koshibo, Valentino Dull Satin, Chiffon crepe and French Voile exhibited the highest performance ranking among all the fabric tested. The study provides the reference to hijab manufacturers and end users in selecting the most suitable fabric for hijab in terms of the respective appearance properties.

Knowledge of animal appearance among sighted and blind adults

How does first-person sensory experience contribute to knowledge? Contrary to the suppositions of early empiricist philosophers, people who are born blind know about phenomena that cannot be perceived directly, such as color and light. Exactly what is learned and how remains an open question. We compared knowledge of animal appearance across congenitally blind (n = 20) and sighted individuals (two groups, n = 20 and n = 35) using a battery of tasks, including ordering (size and height), sorting (shape, skin texture, and color), odd-one-out (shape), and feature choice (texture). On all tested dimensions apart from color, sighted and blind individuals showed substantial albeit imperfect agreement, suggesting that linguistic communication and visual perception convey partially redundant appearance information. To test the hypothesis that blind individuals learn about appearance primarily by remembering sighted people’s descriptions of what they see (e.g., “elephants are gray”), we measured verbalizability of animal shape, texture, and color in the sighted. Contrary to the learn-from-description hypothesis, blind and sighted groups disagreed most about the appearance dimension that was easiest for sighted people to verbalize: color. Analysis of disagreement patterns across all tasks suggest that blind individuals infer physical features from non-appearance properties of animals such as folk taxonomy and habitat (e.g., bats are textured like mammals but shaped like birds). These findings suggest that in the absence of sensory access, structured appearance knowledge is acquired through inference from ontological kind.

Surface Modification of 3D Printed PLA Objects by Fused Deposition Modeling: A Review

Polylactic acid (PLA) filaments are very popular as a thermoplastic source used in the 3D printing field by the “Fused Deposition Modeling” method in the last decade. The PLA market is expected to reach 5.2 billion US dollars in 2020 for all of its industrial uses. On the other hand, 3D printing is an expanding technology that has a large economic potential in many industries where PLA is one of the main choices as the source polymer due to its ease of printing, environmentally friendly nature, glossiness and multicolor appearance properties. In this review, we first reported the chemical structure, production methods, general properties, and present market of the PLA. Then, the chemical modification possibilities of PLA and its use in 3D printers, present drawbacks, and the surface modification methods of PLA polymers in many different fields were discussed. Specifically, the 3D printing method where the PLA filaments are used in the extrusion-based 3D printing technologies is reviewed in this article. Many methods have been proposed for the permanent surface modifications of the PLA where covalent attachments were formed such as alkaline surface hydrolysis, atom transfer polymerization, photografting by UV light, plasma treatment, and chemical reactions after plasma treatment. Some of these methods can be applied for surface modifications of PLA objects obtained by 3D printing for better performance in biomedical uses and other fields. Some recent publications reporting the surface modification of 3D printed PLA objects were also discussed.

Methods for improving the accuracy of Commission Internationale de L’Eclairage tristimulus values of object color by calculation – Part I: Improvement on measurement bandpass and intervals

Color is one of the most important appearance properties of objects. To digitize color, measuring and calculating tristimulus values are the most basic work besides obtaining reflectance spectrum. However, the accuracy of tristimulus values varies with instruments, measuring, and calculation methods. Textiles and some other application of color demand high color quality due to their special utilization. The series of our studies aim to analyze and evaluate some mathematical solutions in order to improve the accuracy of tristimulus values. The studies include two parts: (1) Part I concentrates on measurement bandpass and intervals and their corresponding improvement algorithms, (2) Part II focuses on the influence of measurement ranges and their truncation errors and some algorithms to overcome the truncation errors. In Part I (current article), measurement errors caused by bandpass and test intervals in the spectrophotometer are analyzed. Then, algorithms including two bandpass corrections (3-point correction and 5-point correction), three interpolations (third-order polynomial interpolation Lagrange and Spline, a fifth-order polynomial interpolation Sprague), two Oleari deconvolution methods (zero- and second-order), and three optimization weighting table methods (ASTM Table 6, Table LLR, and Table LWL) are studied systemically by programming MATLAB software and basing on measuring the spectral reflectance of 1301 chips in Munsell Color Book with Commission Internationale de L’Eclairage (CIE) 1964 color-matching functions and D65 standard illuminant. The results show that all algorithms mentioned above yield very positive effects, and among them, Table LWL performs best with reducing the bandpass error and intervals error to 7‰ of its original error and is recommended.

Appearance and comfort properties considering yarn-spinning system and weave structure in worsted woven fabrics

Worsted woven fabrics are considered as a prominent sort of outwear garments; the comfort and appearance properties of which have attracted the attention of researchers and producers. The fabric constructional parameters and the characteristics of yarns used for weaving this group of fabrics can affect their efficiency, comfort, and esthetic characteristics. In this regard, 16 sets of worsted fabrics with four various weave structures (plain, twill 2/1, twill 2/2, and hopsack 2/2) and four groups of yarns which were spun in different yarn-spinning systems (Solo, Siro, single-ply ring, and two-ply ring) were studied. The analysis of results revealed that the open structure and the movability of yarns in the fabric can improve the crease recovery angle, flexibility, air permeability, and water vapor permeability of the fabrics, while decreasing the abrasion and pilling resistance. In addition, the yarns that are spun in various spinning systems, due to their different level of compactness and the location of fibers in the yarn structure, can significantly affect the comfort and appearance properties of the fabrics.

Embodied appearance properties and subjectivity

The traditional approach in cognitive sciences holds that cognition is a matter of manipulating abstract symbols following certain rules. According to this view, the body is merely an input/output device, which allows the computational system—the brain—to acquire new input data by means of the senses and to act in the environment following its commands. In opposition to this classical view, defenders of embodied cognition (EC) stress the relevance of the body in which the cognitive agent is embedded in their explanation of cognitive processes. From a representationalist framework regarding our conscious experience, in this article, I will offer a novel argument in favor of EC and show that cognition constitutively—and no merely causally—depends upon body activity beyond that in the brain. In particular, I will argue that in order to solve the problem derived from the empirical evidence in favor of the possibility of shifted spectrum, representationalist should endorse the view that experiences concern its subject: the content of experience is de se. I show that this claim perfectly matches the phenomenological observation and helps explaining the subjective character of the experience. Furthermore, I argue that entertaining this kind of representation constitutively depends on bodily activity. Consequently, insofar as cognition depends on consciousness, it is embodied.