Study on the fastness to perspiration of red dyes on cashmere北大核心

Cashmere dyed with Lanasol red reactive dyes has the advantages of bright color, good levelness etc. Due to differences in dye their own performance, the fastness of the Lanasol red dyes to perspiration is not high. Aimed at this problem, Jacobian solid color fastness and color fastness promoting agent are used in improving the fastness to perspiration, by adjusting the pH value, the holding time. The dyeing of cashmere Lanasol red B treatment stage optimal process parameters value after heat treatment temperature is 40 °C, pH value 5, yake solid dosage is 3% (owf). For dyeing of cashmere Lanasol red 5 B processing stage optimal process parameters value after heat treatment temperature is 40 °C, pH value 5, yake solid dosage is 2% (owf).     

Micro-printing performance of durable water-repellent black polyester-spandex fabrics without fluorine and silicone resins北大核心CSCD

Synthetic fibers are widely used because of their stable chemical properties high mechanical strength and low cost. Among them polyester has the largest production and is the most widely used and China is also the country with the largest polyester production in the world. With the technological progress of energy saving and emission reduction of liquid disperse dyes the technology of micro printing of polyester and polyester / spandex fabrics has been realized. Based on the high market share of black polyester / spandex printed fabrics and the increasing market demand for functional finishing (e. g. anti-static finishing water repellent finishing UV resistance finishing etc.), it is of great significance to study the process of one-step short processing of polyester printing and functional finishing using carbon-based materials (e. g. carbon black). Carbon black is a gray-black organic pigment with good antistatic and anti-UV properties. It is an eco-friendly advanced material that integrates printing dyeing and functional finishing. To make up for the lack of color depth of carbon black pigment a disperse black dye and carbon black pigment in the same bath preparation scheme are chosen to prepare a functional liquid carbon black @ disperse black dye (CB-D). Not only does CB-D meet the requirements of deep black printing but also it can simultaneously provide water-repellent finishing to the fabric. In this way the application of organic fluorine or organic silicon resin can be dispensed with. A functional liquid CB-D was prepared by pre-dispersion and zirconium oxide grinding method under the action of abrasive agent AL50 (anionic / non-ionic surfactant complex) . The effects of CB-D mass fraction binder type binder D101 mass fraction baking temperature and time on color (L∗ value) rubbing and soaping colorfastness were investigated by optimizing the printing process of liquid CB-D. At the same time the fixation mechanism of CB-D was investigated and the properties of polyester-spandex printed fabrics were tested. The stability of CB-D and the colorfastness of polyester-spandex printed fabrics to hot-wash effluent were investigated by the rate of change of absorbance. The effect of hot-washing on dye floating in the printed area and dye staining in the non-printed area was characterized by the brightness of the printed area L∗ value and the whiteness of the non-printed area (CIE whiteness W10). The properties of CB-D were characterized by scanning electron microscopy and transmission electron microscopy and the antistatic property water repellency air permeability moisture permeability and tensile breaking strength of the fabrics were tested. (i) The first functional liquid CB-D with excellent stability is prepared by grinding carbon black and disperse black dye composed of orange 288 purple 93 and blue 291:3 in the same bath. (ii) A durable fluorine-free and silicone-free water repellent black polyester spandex fabric is prepared reducing the cost of functional finishing and environmental pollution. The preparation of durable water-repellent polyester spandex fabrics without a functional finishing agent is a new technology. CB-D as functional organic melanin with excellent performance and simple processing is a new low-carbon and eco-friendly material and ecological printing and dyeing process. (i) As for the black polyester spandex fabric prepared by a micro-printing process the color fastness of deep black color is not less than grade 4 the white ground is not stained and the color of wastewater is very low. The printing process requires 5% functional CB-D and 8. 5% binder D101. (ii) The black polyester spandex fabric has excellent and durable water repellency air permeability moisture permeability and antistatic property. The water contact angle is 132° anti-static grade is A and the air permeability and moisture permeability are more than 260 mm / s and 2 880 g / (m2h) respectively. After 30 times of home washing it almost keeps the original excellent performance. (iii) The CB-D prepared based on carbon black and disperse black dye is a colloidal aggregate that easily forms continuous carbon black aggregates on the fiber surface showing more excellent porosity film formation and water repellency while maintaining air permeability and moisture permeability. Carbon black is a low-cost material and the liquid CB-D prepared by modifying carbon black with disperse black dye has a new use in preparing functional textiles with good application prospects. © 2022 Authors. All rights reserved.     

FEATURES AND REVIEWS

Dyeing Dynamics and Thermodynamics of Milk Casein Fibre
By Jin MA, Jian-bo ZHANG, The Gro wing Base for state key Laboratory, New Fibre Materials and Modern Textile, Qingdao University, Qingdao, Shandong
Abstract： The milk casein fibre was dyed by purified weak acid brilliant red lOB, and compared with wool and soybean protein fibre. The data concerning the dyeing dynamics and thermodynamics of milk casein fibre were determined and its dyeing properties were discussed. Key words： milk casein fibre; dyeing thermodynamics; dyeing dynamics; dyeing rate curve; adsorption isotherm     

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.     

制革生态学(续七)

The dyes used in finishing are mainly metalcomplex dyes dissolved in an organic solvent, such as our Eukesolar 150 liquid dyes. Dyes of this type have high water resistance. Dyes employed for dyeing leather in the drum such as our Luganil and Lurazol liquid dyes can also be used, buttheir water resistance is inferior to that of the Eukesolar 150 liquid dyes.     

Conservation of Leaves of a Medicinal Plant of Western Algeria （Pistacia atlantica）

In our context, and in the goal to valorize the Pistacia atlantica species Desfthat grows spontaneously in Algeria occidental except the coastline, and that is used by the nomadic populations in their daily consumptions, we are thinking about drying its leaves. Here, the biochemical analysis of dried leaves ofPistacia atlantica is determined, the sorption is other ms are of great importance in the food industry, especially in the drying; the sorption isotherms of pistachio leaves were measured by the gravimetric method at three temperatures 40, 50 and 60 ℃. The equilibrium was achieved after eight days for desorption and seven days for adsorption with water activity ranging from 5% to 90%. Only the GAB and Peleg models were found to be the most suitable for describing the sorption curves. The isosteric heat of sorption of Pistacia atlantica leaves decreases with an increase in moisture content and was found to be an exponential function of moisture content for adsorption and desorption. The pistachio leaves could be considered as a rich natural source of valuable nutriments （carbohydrates, proteins and lipids）; lipid fraction is equal to 2.25%; proteins are the second macronutriment that predominates in these sheets： 4.35%; accordingly carbohydrates content was about 25.77%.     

中英文颜色术语的理解歧义

Interpretation of some color terms is a kind of cross-cultural activity. The color terms in English and Chinese differ greatly in meanings due to physical and cultural reasons. The same color to people in different cultures leads to different associative meanings that share various cultural implications. It is indispensable to study color terms in terms of colors and society, colors and history, colors and politics, and colors and the economy on the basis of comparison and contrast, which constitute the essential elements of any culture and society.     

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.     

臭氧冰在水产品保鲜中的研究(英文)

The effects of ozone ice on the shelf life of Pseudosciaena crocea and cuttlefish,stored under refrigeration(4 ± 0.5℃) were studied by monitoring the microbiological,chemical and sensory changes for a period of 17 days.Results showed that the shelf life could be lengthened 4～5 days preserved by 4mg/kg ozone ice.The total volatility basis nitrogen(TVB-N) was reduced and the bacteria colony was decreased by 92%.The bactericidal effectiveness of ozone ice is strong enough to attain better preservation effect.As a convenient,simple and environmental friendly method,it could be used in the preservation and transportation of fishery products.     

Toward Sustainable, Economic, and Tailored Production of Cellulose Nanomaterials

This paper introduces a concentrated di-carboxylic acid(DCA) hydrolysis process for the integrated production of thermally stable and carboxylated cellulose nanocrystals(CNCs) and cellulose nanofibrils(CNFs). The DCA hydrolysis process addressed several issues associated with mineral acid hydrolysis for CNC production, such as cellulose loss and acid recovery. The surface and morphological properties of the cellulose nanomaterials resulting from the DCA hydrolysis process can be tailored simply by controlling the severity of DCA hydrolysis. To further reduce cost, a lowtemperature(≤80℃) hydrotropic chemical process using p-toluenesulfonic acid(p-Ts OH) was also introduced to rapidly fractionate raw lignocelluloses for the production of lignin containing cellulose nanofibrils(LCNFs) and lignin nanoparticles(LNPs). The LCNF surface hydrophobicity and morphology can be tailored by controlling the fractionation severity, i.e., the extent of delignification. The lignin also improved the thermal stability of LCNFs. LNPs can be easily separated by diluting the spent acid liquor to below the p-Ts OH minimal hydrotropic concentration of approximately 10%. p-Ts OH can also be easily recovered by re-concentrating the diluted spent liquor after lignin precipitation. We believe that these two novel processes presented here have the potential to achieve true sustainable, economic, and tailored production of cellulose nanomaterials, suitable for a variety of applications.     

Fractionation of Palm Kernel Oil by Short Path Distillation

Fractionation of palm kernel oil （PKO） by short path distillation （SPD） at two feed flow rates （135 g/h and 195 g/h） and six distillation temperatures, TD,s （200, 210, 220, 230, 240 and 250 ℃） was investigated. Other distillation parameters, such as vacuum pressure （0.001 mbar）, blade rotation speed （400 rpm） and temperature of the feed material （60 ℃） were kept constant. The fractionated products, known as residue and distillate, were analysed for physico-chemical properties including fatty acid composition （FAC）, triacylglycerol （TAG） composition, slip melting point （SMP）, thermal analysis by differential scanning calorimetry （DSC） and solid fat content （SFC）. Product yield was measured as well. Crystallisation behaviour of PKO and the fractionated products were studied by measurement of isothermal crystallisation, Tc,. at 0, 5, 10, 15, 20 and 25 ℃. The distillates, collected at all fractionation temperatures, were enriched with caprylic, capric and lauric acids. These fractions were also concentrated with low molecular weight and C36 TAGs. Distillates obtained at higher TDis （230-250 ℃） exhibited higher in SMP and SFC. On the other hand, the residual oils collected at all fractionation temperatures contained higher amount of long-chain fatty acid and palmitic acid. These fractions were enriched with high molecular weight TAGs. Residues obtained at lower Tois （200-220 ℃） were low in SMP and comparable SFC with PKO. Changes in fatty acid and TAG composition resulted in different crystallisation behaviour of the fractions. Distillates collected at all fractionation temperatures crystallised in a sharper peak while residues obtained at higher T Dis （230-250 ℃） showed broader crystallisation peaks, as shown by the DSC thermograms.     

Determination of Antioxidant and Cytotoxic Activities of Red Seaweed, （Gracilaria manilaensis） against Different Cancer Cell Lines

Antioxidants play an important role in inhibiting and scavenging free radicals in human, providing protection against cellular damage in relation to cancer initiation. Seaweeds have been proved to have high antioxidant activity. Thus, this research was carried out to determine the antioxidant and anticancer properties of edible red seaweed, Gracilaria manilaensis （Gracilariales, Rhodophyta）. The extracts were prepared by Soxhlet extraction using organic solvents with different polarities. The antioxidant activities of extracts were determined in terms of their flee radical scavenging activity （RSA IC50） and total phenolic content （TPC）. The cytotoxic activity of extracts were tested against human ovarian cancer cell line （Caov-3）, human breast cancer cell line （MDA-MB-231 and MCF-7）, human cervical cell line （HeLa）, mouse fibroblast cell line （L929） and Madin-Darby canine kidney （MDCK） and the cell viability after 72 h incubation was determined by methylene blue assay. The findings showed that acetone extract has the lowest DPPH IC50 value followed by ethyl acetate extract. Both extracts also showed high values of TPC. Dichloromethane extract had the strongest cytotoxic on MDA-MB-231 （53.90 μg/mL ± 5.59 μg/mL） and HeLa （95.50 μg/mL）. While, acetone and ethyl acetate extracts were cytotoxic on MCF-7 （66.07 μg/mL） and Caov-3 （69.67 μg/mL ± 13.94 μg/mL）. It could be concluded that the antioxidant and cytotoxic activities of G. manilaensis were influenced by the types of solvents used and thus had a potential to develop as a cancer chemoprevention or anticancer agent against selected cancer.     

Occurrence and Antibiotic Susceptibility Profile of Streptococcus spp. Isolated from Ewe＇s Milk

The purpose of this study was to determine the occurrence and antimicrobial resistance of Streptococcus spp. isolated from fresh ewe＇s milk and consequently to draw conclusions concerning the health condition of the animal flocks and the current trends of antibiotic use in small ruminants. A total of 77 mountainous sheepfolds were investigated representing 10% of all transhumant sheep and goats flocks in the area. Duplicate milk samples were collected from January to February transferred to the laboratory and analyzed for the presence of Streptococcus spp. by using the serial dilution method and plating on the surface of Slanetz and Bartley agar. The isolates were tested against nine antimicrobial agents with the Kirby-Bauer disk diffusion method. The results showed that Streptococcus spp. occurred in 84.4% of the samples and in counts ranged between 1.8 log CFU/mL and 4.6 log CFU/mL. Concerning susceptibility, only 1.3% of the isolates were resistant to all antimicrobials while 27.3% were fully susceptible. Resistance to cefepime was the most common （93.1%） observation followed by resistance to ampicillin （82.1%）, ciprofloxacine （58.3%） and meropenem （51.9%）. The isolates were vancomycin susceptible at a rate of 83.6%. Multidrug resistance to at least three antibiotics was observed to be 22.1% of Streptococcus spp.. Given the prevalence of Streptococcus spp. and the elevated resistance of isolates to various antibiotics it is concluded that further examinations and even interventions are required in order to pertain the appropriate animal health and milk quality.     

Preparation of Soybean Protein Concentrate with Mixed Solvents of Hexane－Aqueous Alcohol

Preparation of soybean protein concentrate with the mixed solvents of hexane-aqueous alcohol was studied in this paper.The optimum technology parameters were obtained by orthogonal tests.The results of experiments showed that the qualities of the product were good not only on taste of the product were good not only on tasted and color,but also on high solubility-NSI value was 48.80%.     

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.     

食品中蛋白质的功能特性(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.     

Physical Condition of Five Historical Land Deeds and Implications for Land Deed Paper Conservation

This work presents five land deeds(S1-S5) collected by the Deng family, the land deed papers were produced by the Deng family, and the content was about the transaction of the Deng family paper production site. Density, whiteness, pH value, and fiber morphology of the deed papers were measured and analyzed, and the physical condition of the deeds was determined. The results showed S1 and S3 were severely damaged, S2 and S4 were moderately damaged, and S5 was mildly damaged. The abovementioned de...     

Analysis on the shape and structure of Mongolian traditional Gu Gu crowns in the illustrations of the Jāmi' al-Tawārīkh in the National Library of France北大核心CSCD

Jāmi' al-Tawārīkh is a detailed history book of Mongolia compiled by the prime minister Rashid al-Din under an order issued by Ghazan Khan in 700 of the Islamic calendar (1310 - 1311 A. D.). After the book was finished the royal family invested a great deal of manpower material and financial resources to draw its illustrated edition which was completed between 1306 A. D. and 1314 A. D. In this period Persian miniatures had strong Mongolian characteristics. The facial shapes of the characters showed the image characteristics of Mongolians and the clothing styles and patterns on the clothes also had the characteristics of Mongolian and even traditional Chinese costumes. Among them Jāmi' al-Tawārīkh in the National Library of France was drawn between 1425 A. D. and 1430 A. D. There are 15 Persian miniatures in the book that illustrate the Gu Gu crowns worn by aristocratic women of Mongolia which were the headgear favored by women of the ethnic group at that time and were very popular. The Gu Gu crowns in the illustrations are rich in color and clear in structure which provide precious and detailed historical image data for us to study the shape and manufacture characteristics of Gu Gu crowns in the Mongolian and Yuan Dynasties. Through reading the pictures we can learn the color pattern shape structure collocation wearing effect and identity of the wearers wearing occasions and other practical problems of the Gu Gu crowns. Combined with the ancient documents and images we can further study and analyze the specific shape and system of the Gu Gu crowns in the Mongol Yuan period the characteristics of wearing and the related cultural connotation behind them. Firstly the 15 illustrated wearing scenes were classified and the wearing characteristics of Gu Gu crowns in different scenes were summarized to find out their regularity. Secondly the characteristics of wearing the Gu Gu crowns in different scenes were compared and the different meanings they represent were analyzed and studied. Finally we concluded the shape characteristics and decorative effect of Gu Gu crowns in the Mongol Yuan period and summarized the cultural implication and national belief represented by Gu Gu crowns as well as the fundamental reason why they were favored by Mongolian women for their enduring popularity. On this basis the correspondence analysis method was used to study the relationship between the formative characteristics occasion of wearing cultural connotation and the identity status and belief of the users. We concluded that the characteristics of the Gu Gu crowns in the illustrations of Jāmi' al-Tawārīkh collected in the National Library of France except for only wearing the hood and crown cape in keeping vigil beside the coffin changed little with the wearing occasions. The shape of the bionic swan showed totem worship the structure features of the square above and the circle below explained the significance of the combination of men and women. It reflects that Mongolians believe in the "Mongke Tengri" Eternal Heaven and the modeling concept based on nature is beyond nature. The structure of being square at the top and circular at the bottom explains the significance of the combination of men and women. The length of crown feathers the number of the ball feathers the hood color and the cape length change showed that the usefulness of Gu Gu crowns was replaced by decoration becoming a symbol of status. In the middle and late period the gold cross pattern appeared frequently in the crown decoration highlighting the identity of many noble women as disciples of Nestorianism. As a whole Gu Gu crowns elongated the human body lines in a towering and beautiful shape making people appear tall and in line with aesthetic characteristics. The luxurious decorative details highlighted the rich and leisure life of aristocratic women and their noble social rank and status in the Yuan Dynasty. The original symbolism took a back seat to the decorative function. This edition of Jāmi ' al-Tawārīkh provides precious image information for the study of the shape and symbolic significance of aristocratic women's headgear in the Mongol (Yuan) period. Through systematic studying and sorting out the structure shape material pattern production technology etc. it can better inherit Chinese traditional costume culture and inherit the traditional costume skills of China. The research results can provide inspiration and innovative ideas for the design and innovation of Chinese national costumes. Under the trend of global integration the exchange of clothing culture among different countries is increasingly close. It is a shortcut for Chinese fashion to go to the world to retain and integrate the characteristics of national clothing. © 2022 Authors. All rights reserved.     

Structural Characteristics of Cellulose and Xylan during in vitro Fermentation by Pig Fecal Bacteria

In this study,cellulose and xylan were in vitro fermented by pig fecal bacteria.Rapid fermentation (40 h) and extended fermentation (eight weeks)were performed.The properties and ultra-structure changes of post-fermented solid residues were studied.In the end effluent,acetic acid,propionic acid,and butyric acid were observed to be the principal short-chain fatty acids (SCFAs) produced by anaerobic fermentation.Xylan was more accessible to bacteria than cellulose,leading to higher SCFA and lactic acid production.In addition,the crystalline structure of cellulose changed,leading to 16.3％ and 42.1％ increases in crystallinity index for rapid and extended fermentation,respectively.Through this research,a systematic and advanced method to study the degradation chemistry of cellulose and xylan during fermentation was developed.     

从生态角度谈“绿色纺织品”的开发及禁用染料和助剂的代用品（五）

The decrees and standards to protect environment such as Oko-Tex standard 100 and ISO 14000 series were introduced. Then.it mentioned the requirements of "green" textiles. It also discussed the exploitation of "green" textiles from the effect of dyestuffs and auxiliaries on safety and biodegradation of textiles and environment. The substitution of forbidden dyes and auxiliaries were discussed in details.