scholarly journals Effects of Elastic Waves in the Primary Processing of Silkworm Cocoons

2019 ◽  
Vol 9 (2) ◽  
pp. 653-655
Keyword(s):  
Elastic Waves ◽  
Textile Industry ◽  
Primary Treatment ◽  
Drying Process ◽  
High Quality ◽  
Primary Processing

The article deals with the study of the effect of elastic waves in the primary treatment of silkworm cocoons. It was achieved the production of a quality silkworm product in the drying process at a temperature of 650C for 50 minutes, using a vibration of 1 m/s2 for 2 minutes. Based on the obtained results, it can be concluded that the proposed technology makes it possible to obtain high-quality final products for use in the textile industry

Crystal structure, thermodynamics, and crystallization of bio-based polyamide 56 salt

CrystEngComm ◽  
2020 ◽  
Vol 22 (18) ◽  
pp. 3234-3241 ◽  
Author(s):  
Pengpeng Yang ◽  
Xiaoqiang Peng ◽  
Sen Wang ◽  
Dong Li ◽  
Ming Li ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Textile Industry ◽  
Structure Transformation ◽  
High Quality ◽  
Crystal Structure Transformation

Polyamide 56 is regarded as one of the most promising materials for the textile industry. This report gives the crystallization route of high-quality polyamide 56 monomers, and its crystal structure, transformation behaviors, and solubility.

scholarly journals Interaction of porphyrin/oligonucleotide complex with liposomes studied by drop coating deposition Raman spectroscopy

2010 ◽  
Vol 24 (3-4) ◽  
pp. 197-200 ◽  
Author(s):  
E. Kocišová ◽  
M. Procházka ◽  
J. Štepánek ◽  
P. Mojzeš
Keyword(s):  
Raman Spectroscopy ◽  
Lipid Composition ◽  
Hydrophobic Surface ◽  
Small Species ◽  
Drying Process ◽  
High Quality ◽  
Coating Deposition ◽  
Solution Sample ◽  
Plasmatic Membrane ◽  
Edge Part

Drop coating deposition Raman (DCDR) microspectroscopy was used to investigate interaction of the complexed cationic copper 5,10,15,20-tetrakis(1-methyl-4-pyridyl) porphyrin (CuP) and phosphorothioate analog of dT15oligonucleotide with liposomes, the lipid composition of which imitated the natural plasmatic membrane. Great advantage of dried drops on DCDR plates over a solution sample is that the specific drying process on the special hydrophobic surface efficiently separates liposomes from small species in the solvent. In our case, liposomes with bound CuP/oligonucleotide complexes formed a ring at the edge part of the dried drop while dried solution of this complex remained inside this ring. High quality spectra measured from the ring by using Raman confocal microspectrometer revealed unperturbed arrangement of lipid chains by the drying process, partial binding of the CuP/oligonucleotide complexes to liposomes, and a certain reorientation of lipid chains as a consequence of this interaction.

Electrospinning as a Versatile Method of Composite Thin Films Fabrication for Selected Applications

2019 ◽  
Vol 293 ◽  
pp. 35-49 ◽  
Author(s):  
Wiktor Matysiak ◽  
Tomasz Tański ◽  
Weronika Smok
Keyword(s):  
Thin Films ◽  
Phase Separation ◽  
Physicochemical Properties ◽  
Template Synthesis ◽  
Self Assembly ◽  
Textile Industry ◽  
Separation Method ◽  
Common Method ◽  
High Quality ◽  
Composite Thin Films

Today, one of the most popular nanomaterials are thin nanofibrous layers, which are used in many fields of industry, eg electronics, optics, filtration and the textile industry. They can be produced by various methods, such as drawing, template synthesis, molecular self-assembly or phase separation method, but the most common method is electrospinning from a solution or melts. Electrospinning is gaining more and more interest due to its versatility, simplicity and economy as well as the possibility of producing fibers from various types of polymeric, ceramic and metalic materials. Nanofibrous layers produced by this method are characterized by high quality and the desired physicochemical properties.

scholarly journals Preparation of BaZrO3 powders by a spray-drying process

2003 ◽  
Vol 18 (6) ◽  
pp. 1325-1332 ◽  
Author(s):  
B. Robertz ◽  
F. Boschini ◽  
A. Rulmont ◽  
R. Cloots ◽  
I. Vandriessche ◽  
...  
Keyword(s):  
Spray Drying ◽  
Precursor Solution ◽  
Barium Zirconate ◽  
Drying Process ◽  
X Ray Diffraction ◽  
High Quality ◽  
Corrosion Resistant ◽  
X Ray ◽  
Potential Use ◽  
Scanning Electron

The potential use of barium zirconate for the manufacture of corrosion-resistant substrates emphasizes the need for a simple, inexpensive, and easily scalable process to produce high-quality powders with well-controlled composition and properties. However, the classical solid-state preparation of barium zirconate leads to an inhomogeneous powder unsuitable for applications in highly corrosive environment. For this paper, the possibility to use the spray-drying technique for the preparation of BaZrO3 powders with a controlled size distribution and morphology was investigated. The influence of the nature and concentration of the precursor solution and the influence of the spray-drying step are discussed on the basis of x-ray diffraction, Fourier transform infrared spectroscopy, scanning electron microscopy, and dilatometric measurements.

Method and devicies for determining the linear density of flax fiber

2018 ◽  
pp. 143-150
Author(s):  
Oleksandr Holoviy ◽  
Anna Lytvynova
Keyword(s):  
Textile Industry ◽  
Linear Density ◽  
Flax Fiber ◽  
Primary Processing ◽  
Flax Fibers

The article describes the design of two devices for implementation the method for determining the linear density of flax fiber. The results of the experiment confirmed the presence of correlation between the linear density of flax fiber in the sample and the time of passing through the sample a portion of the air of specified volume at a given pressure. The proposed method for determining the linear density of flax fibers can be used in laboratories of breeding establishments, enterprises of primary processing and textile industry

scholarly journals Supporting competitiveness of textile companies in Ukraine

2019 ◽  
pp. 141-150
Author(s):  
Olena Berestetska
Keyword(s):  
Textile Industry ◽  
International Markets ◽  
Financial Sustainability ◽  
Competitive Advantages ◽  
Expert Evaluation ◽  
Key Factors ◽  
High Quality ◽  
National Market ◽  
Market Relations

In the conditions of market relations, each enterprise aims at maximizing the results of their performance. On the other hand, a competitive environment poses additional challenges in achieving this goal. Therefore, enterprises need to create and maintain competitive advantages, the main of which are aimed at manufacturing high quality products and meeting consumers’ expectations. That is why the purpose of the study is to assess the competitiveness of domestic textile enterprises and to develop proposals for their competitive positioning both on the national and international markets. The author proposes a model of expert evaluation of competitiveness in the textile industry of the national economy. The results of the study make it possible to conclude that there is sufficient potential for restoration and competitive development of the textile industry. It is stressed that democratic prices and high quality should become the key factors of competitiveness. It is determined that manufacturing high quality products by domestic enterprises will ensure long-term financial sustainability of enterprises and additional investments, which will help to increase production volumes, create more workplaces, improve the positioning of the industry on the national market, and increase its export potential.

scholarly journals The chemical recycle of cotton

2016 ◽  
Vol 2 (2) ◽  
pp. 64-76 ◽  
Author(s):  
Alice Beyer Schuch
Keyword(s):  
Textile Industry ◽  
Scale Up ◽  
Resource Scarcity ◽  
High Quality ◽  
Cellulosic Materials ◽  
Scientific Papers ◽  
Negative Environmental Impact ◽  
Number Of Cycles ◽  
Chemical Recycle

The chemical recycle of cotton textiles and/or other cellulosic materials for the purpose of manufacturing regenerated high quality textiles fibres is a novel process. The objective of related research is based on the forecast of population growth, on resource scarcity predictions, and on the negative environmental impact of the textile industry. These facts lead the need of broadening the scope for long-term textile-to-textile recycle - as the mechanical recycle of natural fibres serve for limited number of cycles, still depends on input of virgin material, and offer a reduced-in-quality output. Critical analysis of scientific papers, relevant related reports, and personal interviews were the base of this study, which shows viable results in laboratorial scale of using low-quality cellulosic materials as input for the development of high-quality regenerated textile fibres though ecological chemical process. Nevertheless, to scale up and implement this innovative recycle method, other peripheral structures are requested, such as recover schemes or appropriate sort, for instance. Further researches should also be considered in regards to colours and impurities.

scholarly journals METHOD FOR PRIMARY PROCESSING OF HERE SILKWORM COCOONS BY USING INFRARED RADIATION AND ELASTIC WAVES

2019 ◽  
Vol 2018 (3) ◽  
pp. 30-36
Author(s):  
J Safarov ◽  
◽  
Sh Sultanova ◽  
D Samandarov
Keyword(s):  
Experimental Study ◽  
Experimental Work ◽  
Elastic Waves ◽  
Initial Moisture Content ◽  
Summer Season ◽  
Processing Method ◽  
Full Scale Test ◽  
State Technical ◽  
Primary Processing ◽  
Scale Test

The article discusses the results of an experimental study of the primary processing of silkworm cocoons. In the laboratory of the department of Tashkent State Technical University a full-scale test was carried out for the primary processing of silkworm cocoons. Experimental work was carried out to pacify and dry the living cocoons of the silkworm of the duragay cultivar “MusaffoTola” grown during the summer season. Studies were carried out to determine parameters such as temperature and time of the primary processing of the silkworm in 5- fold repetition.The initial moisture content of live silkworm cocoons was 36–40%. According to the results of laboratory - experimental work, the appearance of mold was observed in 25-30% of processed cocoons of the silkworm, at 55-60 °C in 10 days a butterfly formed in 15-20% of the cocoons. The processed cocoons of the silkworm at a temperature of 75-85 °C deteriorated due to the release of liquid.It was revealed during observations that silkworm cocoons processed in the temperature range 65-70 °С using vibration waves were euthanized within 30 minutes and the cocoons were dried to 10-12% humidity within 10 days at a temperature of 38-42 °С. The use of elastic waves in the processing of cocoons proceeded 5-10% lower compared to the processing method using vibrational waves.

scholarly journals The Freeze-Drying of Foods—The Characteristic of the Process Course and the Effect of Its Parameters on the Physical Properties of Food Materials

Foods ◽  
2020 ◽  
Vol 9 (10) ◽  
pp. 1488 ◽  
Author(s):  
Dorota Nowak ◽  
Ewa Jakubczyk
Keyword(s):  
Mechanical Properties ◽  
Physical Properties ◽  
Structural Properties ◽  
Freeze Drying ◽  
Process Conditions ◽  
Drying Process ◽  
High Quality ◽  
Freeze Dried ◽  
Secondary Drying ◽  
Selection Of

Freeze-drying, also known as lyophilization, is a process in which water in the form of ice under low pressure is removed from a material by sublimation. This process has found many applications for the production of high quality food and pharmaceuticals. The main steps of the freeze-drying process, such as the freezing of the product and primary and secondary drying, are described in this paper. The problems and mechanisms of each step of the freeze-drying process are also analyzed. The methods necessary for the selection of the primary and secondary end processes are characterized. The review contains a description of the effects of process conditions and the selected physical properties of freeze-dried materials, such as structural properties (shrinkage and density porosity), color, and texture. The study shows that little attention is given to the mechanical properties and texture of freeze-dried materials obtained from different conditions of the lyophilization process.

Sign in / Sign up

Export Citation Format

Share Document