43results about How to "Fast degumming" patented technology

The invention provides a prepolymer containing m-xylene diamine. The prepolymer comprises the following components in parts by weight: 30-50 parts of linear epoxy phenol formaldehyde, 40-60 parts of m-xylene diamine, 15-20 parts of glycidyl ester type epoxy resin, a promoter, and an assistant. The prepolymer can be cured quickly at a low temperature, cannot be crystallized easily, and has a moderate viscosity; the requirement on control over the proportion is not high; AB gum equivalent ratio is easy to adjust; no amine albinism phenomenon occurs during the curing process; the irritation on skin is small; the hardness and strength the gum are enhanced; the waterproof and chemical resistant properties are improved; the degumming speed is increased. The invention further provides a preparation method for the prepolymer containing the m-xylene diamine.

The invention relates to a simple degumming method of concentrated-fragrance colza oil. The degumming method comprises the following steps of: (1) pumping squeezed concentrated-fragrance colza crude oil with slag removed into a degumming tank, wherein the concentrated-fragrance colza crude oil does not need to be heated or cooled and just is operated at normal temperature; (2) adding a degumming absorption agent into the degumming tank; (3) stirring for 15-20min at room temperature; and (4) filtering and separating the absorption agent by using a plate frame filtering machine of which the filtering aperture is 5mu m, so as to obtain the refined concentrated-fragrance colza oil. The degumming absorption agent is prepared from montmorillonoid, silicate, modified bentonite and filter aids with different apertures which are mixed and stirred. According to the simple degumming method, the gum impurities such as phospholipids and protein in the concentrated-fragrance colza oil are absorbed by using the degumming absorption agent and then filtered and separated, thus degumming the concentrated-fragrance colza oil; and the conventional process that the concentrated-fragrance colza oil stands for a long time or is subjected to hydration degumming firstly and then dried and dehydrated is replaced, both the gum impurities can be simply and rapidly eliminated, and the concentrated fragrance of the oil is not lost, so that colza oil which is fragrant, pure in quality, nutritive and sanitary is obtained.

The invention discloses a rapid mulberry bark biological degumming process. Picked mulberry bark is pretreated. The treatment process includes the steps that tea saponin ranges from 4 g / L to 5 g / L, time is 3 h, temperature is 80 DEG C, and the bath ratio is 1:18; bacillus licheniformis, bacillus subtilis and EM bacteria are prepared into a complex microbial inoculant according to the quantity ratio of 1:0.2:0.5; the microbial inoculant is evenly sprayed to the pretreated mulberry bark, and after being fermented for 8 h at the temperature of 38 DEG C, the mulberry bark is rapidly heated to 45 DEG C, the temperature is kept for 2 s and then rapidly cooled to 39 DEG C, continues to be fermented for 2-3 h, and is completely washed with warm water after fermentation is finished; an enzyme solution is prepared, wherein the treatment parameters are characterized in that the bath ratio is 1:15, time ranges from 100 min to 120 min, and temperature is 45 DEG C. The biological fermentation process and bio-enzyme treatment are fully utilized, especially unique heat shock treatment is used in the fermentation process, the mulberry bark can be rapidly degummed, and the gum content of the treated mulberry bark can be controlled to be 40% or below.

The invention relates to a clean jute fiber degumming method and belongs to the fields of textiles, biology and environmental protection. The clean jute fiber degumming method comprises a degumming step, wherein in the degumming step, the used cooking liquor is at least one of diluents of a cellulose extracting agent, residual liquor with the solid content of less than or equal to 10% and wastewater in which residues and lignin are removed; the extracting agent is prepared by mixing a solution A and a solution B; the solution A is alkali liquor; the solution B is prepared from crude enzyme fluid and an enzyme stabilizer; and the crude enzyme fluid is clarified crude enzyme fluid prepared by fermenting bacillus subtillis and separating the thallus. According to the method disclosed by the invention, jute fibers are treated in a bath by adopting the crude enzyme fluid and dilute alkali, so that the molecular structure of colloid in the original hemp is greatly changed, the stability of the colloidal complex is severely damaged, alternation and cycle of swelling-modification-colloid removing can be formed, and the aim of rapidly degumming the jute fibers is rapidly achieved under normal temperature conditions.

The invention discloses a production method of an elastic puffed silk quilt, relating to the technical field of home textile preparation. The method comprises cocoon selecting, cocoon cooking, degumming, pupae removing, ring sleeving, thread insertion and wire drawing, and is characterized by also comprising the steps of (A) firstly soaking cocoons into purified water before cooking the cocoons, wherein the water temperature is 50-70 DEG C and the soaking time is 3-5 minutes, putting the cocoons and the purified water into a vacuum container after soaking is completed, adding an alkaline swelling agent of which the pH is 9-10 for cooking, wherein the cooking temperature is 90-100 DEG C and the cooking time is 5-10 minutes; and (B) soaking natural silk into the purified water after wire drawing is completed, wherein the water temperature is 70-80 DEG C and the soaking time is 3-5 minutes, soaking the natural silk into the purified water containing an acid swelling agent, wherein the water temperature is 20-30 DEG C and the soaking time is 2-4 minutes, and finally drying and arranging the natural silk. Compared with the prior art, the production method has the advantage that the problem that the elasticity of an existing silk quilt is easily reduced can be solved.

The invention discloses a preparation method of antibacterial environment-friendly mulberry bark fiber. The method is as below: conducting mechanical beating on the mulberry bark to remove impurities; then conducting pretreatment with the process of tea saponin 4-5 g / L, 3h, temperature of 80 DEG C, and bath ratio of 1:18; preparing Bacillus licheniformis, Bacillus subtilis, and EM bacteria in the ratio of 1:0.2:0.5 into a compound inoculant; uniformly spraying the inoculant on the pretreated mulberry bark, fermenting at 38 DEG C for 8 h, rapidly heating to 45 DEG C and maintaining for 2 s; then rapidly cooling to 39 DEG C, continuing fermentation for 2-3 h, and washing with warm water after fermentation; preparing an enzyme solution under the parameters of bath ratio of 1:15, 100-120 min, and temperature of 45 DEG C; and rinsing, carrying out routine soaping, loosing and drying.

The present invention relates to a clean plant cellulose extraction agent, a preparation method and applications thereof, and belongs to the field of biotechnology and agricultural product processingand production. The clean plant cellulose extraction agent is formed by mixing a liquid A and a liquid B, wherein a volume ratio of the liquid A to the liquid B is 3:1-5:1, the liquid A is an alkalineliquid, the liquid B comprises a crude enzyme liquid and an enzyme stabilizer, and Bacillus subtilis CGMCC1.836 is fermented, and bacterial separation is performed to obtain the clarified crude enzyme liquid. According to the present invention, the molecular structure of the colloid in the raw fiber is greatly changed by mainly using the alkaline pectin lyase, the alkaline polygalacturonase and the dilute alkali liquid, such that the stability of the colloid complex is severely damaged, and the alternating and circulating of swelling-modifying-colloid removing can be formed so as to achieve rapid hemp fiber degumming, reed pulping, cotton straw pulping and other purposes at the normal temperature.

The invention discloses a method for high-temperature and high-pressure acid degumming of tussah silk. Firstly, acid, a penetrant and water are mixed, degumming liquid is obtained, silk is soaked with the degumming liquid, and degumming is carried out under the conditions that the pressure is 1.0-3.0 MPa and the temperature is 100-140 DEG C. The tussah silk is treated through the high-temperature and high-pressure acid degumming method, the hydrolysis speed of sericin and the breaking speed of protein peptide bonds are increased, degumming time is short, the degumming rate can reach 13%, the breaking strength of the silk obtained after degumming can be kept at about 620 N, the strength losses of the silk are small, and rapid degumming of the tussah silk is achieved.

The invention discloses a single-component anaerobic silicon slice bottom plate adhesive, which comprises the following raw materials in parts by weight: 50-60 parts of hydroxypropyl methacrylate, 30-50 parts of polyurethane acrylate, 0.05-0.1 parts of polymerization inhibitor, and accelerator 1-2, complexing agent 0.02-0.1 and initiator 1-5; also include: methyl propylene glycol 1-3, polyethylene glycol dimethacrylate 1-3 and foaming agent 1-5. The one-component anaerobic silicon slice floor adhesive of the present invention, compared with the conventional two-component adhesive, does not require glue mixing time, and the initial curing time is about 40s. Degumming is convenient and fast, reduces manpower and material resources, greatly speeds up the production rhythm, and meets the needs of rapid and efficient industry development.