Preparation and uncertainty evaluation of standard samples for testing of dye transfer inhibition in washing北大核心CSCD

As for domestic washing the problem of fabric dye transfer in washing is becoming more and more serious which leads to the decrease of added value of fabrics and affects the aesthetics. With the improvement of people's living standards the demand for fabrics with high color saturation is increasing day by day. However fabrics with high color saturation are often accompanied by problems such as fabric dye transfer in the washing process which has become a pain point in clothing washing. For this reason washing machines at home and abroad are generally equipped with dye transfer inhibition and color protection washing procedures to alleviate the dye transfer phenomenon caused by mixed washing. Jiangnan University and Wuxi Little Swan Electric Co. Ltd. have carried out a series of studies on the formulation of dye transfer inhibition washing standards and the development of standard samples. In order to realize scientific and objective evaluation of dye transfer inhibition performance and solve the problem of lack of standard samples in washing dye transfer inhibition tests white cloth standard samples and red cloth standard samples for washing dye transfer inhibition tests were prepared to simulate light color clothes and dark color clothes in mixed washing. The color depth and water fastness of the prepared standard color cloth are 0. 2% and grade 3 respectively which comply with the provisions of GB / T 12490 - 2014 Textiles—Tests for Colour Fastness—Color Fastness to Domestic and Commercial Laundering. The homogeneity of standard white cloth and standard red cloth were tested by variance analysis the short-term stability test and long-term stability test were carried out for the data with an interval of one month and one year respectively by using the stability test formula. For the whiteness and color difference data tested by seven laboratories in order to analyze the normality of the fixed value data it is necessary to conduct a normality test on the obtained data. For this reason the skewness and kurtosis methods are used to conduct a normality test. The indicators tested include the average standard error standard deviation skewness skewness standard deviation kurtosis and kurtosis standard deviation etc. And Cochrane criterion and Dixon criterion are used to judge whether there are outliers. The indicators tested include statistics low-end outliers and high-end outliers. When calculating the uncertainty the uniformity short-term stability long-term stability and uncertainty introduced in the process of setting are calculated respectively to obtain the combined uncertainty. The results show that the standard white cloth and standard colored cloth have good uniformity and high stability. The combined uncertainty of the standard white cloth is 0. 365 8 and the combined uncertainty of the standard color cloth is 0. 358 0. The uncertainty mainly comes from the uncertainty introduced in the process of value determination. The uncertainty introduced by the uniformity short-term stability and long-term stability has little impact. This paper has prepared the standard sample for washing dye transfer inhibition test and provided the standard sample that is missing in the washing dye transfer inhibition test which is expected to realize the objective evaluation of the dye transfer inhibition performance promote the development of the dye transfer inhibition program carried by the washing machine and realize the scientific evaluation of the washing dye transfer inhibition performance. © 2022 Authors. All rights reserved.     

Environmental friendly carrier preparation and its application in one-bath dyeing of wool/polyester fabric北大核心

In order to decrease polyester dyeing temperature, and realize one-bath dyeing of wool, polyester blended fabric, environmental friendly inodorous carrier emulsion with good stability was preparation, the effects of carrier on polyester glass transition temperature, dyeing temperature and carrier amount on polyester dyeing performance were investigated, and solving method of disperse dye staining wool after one-bath dyeing of wool and polyester was discussed. The results showed that carrier had obvious plasticizing effect, polyester can be dyed at 98 °C by using the carrier, the optimum carrier amount was 5% (owf). After one-bath dyeing of wool and polyester, reduction cleaning at 75 °C for 10 min with bath ratio 1 = 50 by using solution containing sodium hydrosulfite 0.6 g/L, sodium carbonate 1.0 g/L, and anionic surfactant AES 1. 0 g/L, which could solve the problem of disperse dye staining wool.     

非接触式喷印墨水

Ink-jet priming is a high technology applied in non-touching printing of many product lines.Various patterns can be printed on the surface of the objects under electronic control. The nontouching printing technology is ideal for printing on the surface of the irregular shaped objects.Manufacturing date, specification, size, ingredient, quantity or logos can be printed on food,beverage, cosmetics, medicine,chemistry, tobacco and alcohol.The patterns are clearly printed at a high speed. The printing process is operated synchronously with the product lines. It is essential to modern enterprises     

Highly Efficient and Innovative Textile Machinery by JTM. Showcased at ＂ITMA Asia ＋ CITME 2008＂

Fountain Set （Holdings） Limited （＂Fountain Set＂, SEHK： 420）, a global leader in manufacturing of knitted fabrics, announced that its wholly owned subsidiary Jiangyin Jintian Machinery Limited （＂Jin-tian＂） has officially launched its new JTM. brand of textile machinery. Jintian is committed to building JTM. into the world＇ s leading textile machinery brand via continuous focus on innovation, superior energy-savings, efficiency and reliability in dyeing and finishing machines. The JTM. brand will lead the dyeing and finishing industry in-to a ＂green revolution＂ in textile production.     

8.Standards for Grade(2)

The original set of the physical standards currently in effect is sealed and depositedin a vault at the USDA in Memphis or Washington,D.C.Copies of these,known as pra-ctical forms,are prepared and sold by USDA.In addition,guide boxes containing sixsamples are prepared and sold.The utmost care is taken to keep the range of color,leaf,and preparation in all copies of each standard,as nearly the same as possible.The color of cotton deepens with age—more in the high grades than in the low gradesand more in Tinged and Spotted grades than in the Gray grades.The color of the cottonin the standards stored or used under different conditions may differ considerably as time     

Study on the anions and moisturizing function of vitamin e fiber intertexture北大核心CSCD

To explore the impacts of different functional fiber contents, different yarn types and different fabric weaves on the functionality of textiles, this paper takes mulberry silk as the warp yarn and takes vitamin E yarn, combed cotton/'vitamin E fiber/Modal(40/40/20) blended yarn and viscose fiber as weft yarns, to prepare 9 tyj>es of vitamin E yam and viscose yarn with different weft ratios, 5 types of combed cotton/vitamin E fiber/Modal(40/40/20) blended yarns and viscose fiber with different weft ratios, 5 types of vitamin E yarn and viscose fabrics with a weft ratio of 1 • 1 and different weaves, and then tests the anions and moisturizing compound function of three series of fabrics.The results show that the anion production and moisturizing properties of fabric grow with the increase of vitamin E fiber content.Both yarn type and fabric! weave will affect the anion production and moisturizing properties of fabrics. © 2021 China Silk Association. All rights reserved.     

The Future of Development of China''''s Printing Industry

The tendency in general Digitizing,Networking,diversification and quickness. Digitizing,networking-Digital and network technology will penetrate the in- dustry even far and wide; Diversification-The color and type of printing products will be developed; Quickness-Quick printing at re- quest and streamlined delivery is a new goal of the printers.     

Soliciting Advertisement

Dear manager,if you want to find the end-users of your screen printing and other printing machinery and equipment in china, please advertise in the Screen Printing Industry magazine! First, let me introduce the Screen Printing Industry to you. The Screen Printing Industry,a bimonthly magazine, 16mo,colour offset printed magazine,is     

制革生态学(续六)

4 Finishing The purpose of finishing leather is to improve its serviceability by protecting it from damage by water, soil and mechanical action. Finishing modifies the shade, gloss and handle of the leather, improves its physical properties such as its lightfasthess and rubfastness, and hides any defects and     

基于小波变换和阈值分割的织物疵点边缘检测

The edge detection of fabric defects is the base of geometrical features extraction and the essential process of the fabric defects identification, This paper proposed a method for fabric defects edge detection based on discrete stationary wavelet transform （DSWT） and optimal threshold segmentation algorithm （OTSA）. Firstly, the background of fabric defects picture was removed, then it was executed through DSWT and enhanced by the Laplacian operator. Finally, the edge detection was carded out with both OTSA and morphological operation. By contrast, this method is better than the classic ones, and is effective to fabric defect edge detection.     

Highly Conductive Fractal-structured Silver Particles for Preparing Flexible Printed Circuits via Screen Printing

Fractal-structured silver particles(FSSPs) are conductive materials with a micron-scale trunk and nanoscale branches, and are characterized with high electrical conductivity and high connectivity. In this study, FSSPs were added to an aqueous additive solution for synthesizing a conductive ink,which was used to prepare two types of printing electrodes via screen printing. The first type included two flexible printed electrodes(FPEs): an FPE on a polyethylene terephthalate(PET) film and an FPE on paper. The second one was a polydimethylsiloxane(PDMS)-embedded FPE. The PETbased FPE exhibited high electrochemical stability when its sheet resistance was 0.38 Ω/sq for a 50%(w/w) content of FSSPs in the prepared conductive ink. Moreover, the embedded FPE demonstrated excellent mechanical properties and high chemical stability. In addition, the embedded structure was endowed with stretchability, which is important for different devices,such as flexible biomedical sensors and flexible electronics.     

Antimicrobial treatment for wool using quaternary ammonium salt as the biocide北大核心

Antimicrobial treatments of textiles, especially cotton and synthetic fibres, have attracted considerable attention in research and manufacturing. The treatments prevent odour formation and fabric deterioration that arise from the growth of microbes on the textiles during their use or storage. However, wool is more difficult to treat due to its unique surface properties. In this report,we demonstrate that the pretreated wool was also able to exhaust up to 10% ( owf ) (on weight of fabric) of benzalkonium chloride,a cationic quaternary ammonium salt with biocidal activity. The exhaustion on the pretreated wool did not vary between 20 °C and 60 °C and was slightly affected by acidic pH value. Wool fabrics finished with 6% (owf) or more benzalkonium chloride exhibited strong antimicrobial abilities, deactivating 95. 5% ∼99. 9% of E. coli in quantitative antimicrobial assays.     

Study on the structure and properties of modified silk with ultraviolet absorbent北大核心CSCD

The silk fiber has an irreplaceable position in textile fibers and related silk fabrics have the advantages of light and airy texture good moisture absorption and breathability comfort in wear etc. It is also widely used in other fields such as the biomedical sector. However silk also has its own limitations poor light resistance and susceptibility to ultraviolet light especially the ultraviolet light of 290-400 nm wavelength in daylight such as under which condition it is prone to yellowing and photodegradation. The yellowing of silk is due to the photo-oxidation of tyrosine and tryptophan in silk protein under the action of ultraviolet light from sunlight and due to the production of yellow substances which affects the whiteness of silk. In addition from the molecular structure of silk most of the amino acids susceptible to UV light are distributed in the amorphous region. As the amorphous region is affected the structure of the crystalline region is also gradually relaxed the local degradation begins and the silk protein macromolecule chain is cleaved which leads to the decrease of the mechanical properties of silk fibers and accelerates the aging of silk fibers and fabrics. Therefore it is necessary to modify the silk products outside the anti-purple line. The current methods used to modify silk are mostly for post finishing modification including coating impregnation and chemical grafting methods but these methods often affect the original color or feel of the fabric and the durability of the modified effect is also poor. The feeding method is a green method to obtain modified silk by spraying mulberry leaves or artificial feed mixed with modifier which is ingested by silkworm and transferred to silk gland. In this study five aminobenzene UV absorbers were used as exogenous additive food for silkworms. The effect of molecular polarity on the transport of modifiers to silk glands was investigated and their effects on silkworm development and silk structural properties were studied. It was found that the aminobenzene UV absorbers were more easily transferred to the central silk gland silk glue and less to the posterior silk gland (fibroin). 4-dimethylaminobenzoic acid was found to be the highest in the posterior silk gland with a content of 3. 27 μg / strip. The cocoon width and cocoon quality of this group were significantly lower than those of the control group and the silk gum content was increased when this group was used as the study object. Compared with the control group the relative content of β-folded structure and crystallinity of the silk in the addition feeding group decreased slightly. The silkworm silk in the feeding group showed a certain UV absorption ability. After 330 h UV irradiation the breaking strength and elongation of the control group decreased by 48. 95% and 43. 52% respectively while those of the feeding group decreased by 42. 03% and 34. 18% respectively. In this paper UV absorbers were added to silkworms to obtain modified silk mainly focusing on the transfer of the modifier to the silk gland and the structural properties of the modified silk only for the most UV absorbers to enter the silk gland of the posterior group of silk. Other properties of the modified silk such as washing resistance have not been studied and some more in-depth studies are required. For instance it needs to be studied in depth for the limited absorption of exogenous additives by silkworms additive food's being not always absorbed by silkworms and transferred to the silk gland and the mechanism of action between the additive food and silk protein after the former's entering the silk gland. © 2022 Authors. All rights reserved.     

China Printing Industries in 2010

According to the statistics by Printing and Printing Equipment Industries Association of China(PEIAC),The turnover of China printing industry in 2010 is 576.0 Billion RMB Yuan,increased by the rate of 12% than that in 2009.The turnover of printing equipment     

Lignin-based Hydrogels for Biological Application

Lignin is the most abundant aromatic compound found in nature.The rich functional groups of lignin are responsible for its antibacterial,antioxidant, anti-ultraviolet, and biocompatible properties. As modified lignin has a higher molecular weight, water solubility, and better surface activity, it is a good candidate for the construction of new biological materials. Ligninbased hydrogels are a type of functional materials with broad application prospects in the biomedical field. This review aimed...     

马铃薯淀粉的交联-聚合体化学修饰途径

The crosslink reaction is in fact from a commercial perspective the most reward ing reacting there is.It is used to adjust viscosity or rheology parameter in a large number of applications like p. e. the food or adhesives and textile printing. Crosslinked starches bind water in drilling fluids and meat products. Furthermore it gives food stuffs the desired texture. This is connected to the reinforcement of the granular structure when the crosslinking is carried out in suspension. This reinforced granule is now capable of withstanding process conditions and as such it gives the derivatives stability.     

Facile Fabrication of Cellulosic Paper-based Composites with Temperature-controlled Hydrophobicity and Excellent Mechanical Strength

In this paper,we presented a novel strategy to employ a plantderived carbohydrate polymer,i.e.,cellulose,to prepare a hydrophobic composite.Cellulose was used as a scaffold,and ethylene-propylene side by side(ES)fiber was thermally melted and then coated on the cellulose surface to achieve hydrophobicity.Experimental results revealed that the thermocoating ES fibers greatly increased the water contact angle of the cellulose scaffold from 25°to 153°while simultaneously enhanced the wet tensile strength of the composite approximately 6.7-fold(drying temperature of 170℃)compared with the pure cellulose paper.In particular,compared with other related research,the prepared cellulose-based composite possessed excellent hydrophobicity and superior mechanical strength,which introduces a new chemical engineering approach to prepare hydrophobic cellulose-based functional materials.     

Analysis of purple red color on the traditional Daur embroidered pouch北大核心CSCD

Twenty five pieces of embroidered pouches collected from Molidawa Daur National Museum in Inner Mongolia were analyzed. Among them, eight embroidered pouches which might be dyed with vegetable dyes were chosen. Sixteen purplish red colors were selected for the recovery experiment. The range of L∗, a∗, b∗ and c∗ value of colors were obtained through positioning and comparative study. The feasible dyes were confirmed to be sappanwood and safflower. The dyeing process was as follows: direct dyeing with sappanwood, pre, mordant dyeing, and post, mordant dyeing. The results showed that a variety of purple, red colors were obtained by adjusting the dye concentration, the mordant types and the pH value. One color could be recovered by direct dyeing with sappanwood, while eight colors could be recovered by pre, mordant dyeing. Seven colors could be recovered by safflower dyeing. The color difference to the collected colors was less than four which reached the purpose of recovery research. © 2018 China Silk Association. All rights reserved.     

Inventory of Chinese Printing Industry in 2015

正In 2015,Chinese printing enterprises faced a lot of pressure,because the market changed.I.Changes brought by market positioning The change brought by market positioning was a major event that printing enterprises could not avoid in 2015.Transformation and upgrading of printing enterprises requested completion of the positioning transformation first.     

食品中蛋白质的工能特性(英文)

The structure, shape, color, smell and taste of food were decided by protein functionality.The utilization of protein will improve by changing the protein functionality.Protein functionality is also advantage to maintain and utilize the nutrition of food.This paper summarized the nature, classification, factors and prospect of protein functionality.It ccn provide a theoretical basis for application of protein in food industry.