CN111743694A - Enzyme-containing composite core and preparation method thereof - Google Patents
Enzyme-containing composite core and preparation method thereof Download PDFInfo
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- CN111743694A CN111743694A CN201910242998.9A CN201910242998A CN111743694A CN 111743694 A CN111743694 A CN 111743694A CN 201910242998 A CN201910242998 A CN 201910242998A CN 111743694 A CN111743694 A CN 111743694A
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
- A61F13/53—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium
- A61F13/534—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having an inhomogeneous composition through the thickness of the pad
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
- A61F13/15577—Apparatus or processes for manufacturing
- A61F13/15617—Making absorbent pads from fibres or pulverulent material with or without treatment of the fibres
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
- A61F13/15577—Apparatus or processes for manufacturing
- A61F13/15699—Forming webs by bringing together several webs, e.g. by laminating or folding several webs, with or without additional treatment of the webs
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
- A61F13/15577—Apparatus or processes for manufacturing
- A61F13/15804—Plant, e.g. involving several steps
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
- A61F13/45—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the shape
- A61F13/49—Absorbent articles specially adapted to be worn around the waist, e.g. diapers
- A61F13/496—Absorbent articles specially adapted to be worn around the waist, e.g. diapers in the form of pants or briefs
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
- A61F13/84—Accessories, not otherwise provided for, for absorbent pads
- A61F13/8405—Additives, e.g. for odour, disinfectant or pH control
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
- A61F2013/15008—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterized by the use
- A61F2013/15146—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterized by the use for urine collection
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
- A61F13/84—Accessories, not otherwise provided for, for absorbent pads
- A61F13/8405—Additives, e.g. for odour, disinfectant or pH control
- A61F2013/8408—Additives, e.g. for odour, disinfectant or pH control with odour control
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
- A61F13/84—Accessories, not otherwise provided for, for absorbent pads
- A61F13/8405—Additives, e.g. for odour, disinfectant or pH control
- A61F2013/8408—Additives, e.g. for odour, disinfectant or pH control with odour control
- A61F2013/8414—Additives, e.g. for odour, disinfectant or pH control with odour control with anti-microbic
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
- A61F13/84—Accessories, not otherwise provided for, for absorbent pads
- A61F13/8405—Additives, e.g. for odour, disinfectant or pH control
- A61F2013/8438—Additives, e.g. for odour, disinfectant or pH control being enzymes, e.g. proteolysis, cellulase
Abstract
The invention is suitable for the technical field of disposable hygienic products, and provides an enzyme-containing composite core body and a preparation method thereof. The first excrement liquid treatment enzyme layer and the second excrement liquid treatment enzyme layer in the enzyme-containing composite core body provided by the embodiment of the invention can inhibit the growth and reproduction of bacteria, eliminate the bacteria and control the generation of peculiar smell from the source. Through the combined action of the upper layer and the lower layer of excrement liquid treatment enzyme layers, even if excrement liquid is concentrated in the composite core body of excrement hygienic products such as diapers and the like and sanitary products in menstrual periods of women for a long time, the excrement liquid has no urine smell, has no mass growth and reproduction of bacteria, inhibits bacteria and removes ammonia, and provides a clean and comfortable living environment for human bodies.
Description
Technical Field
The invention belongs to the technical field of disposable hygienic products, and particularly relates to an enzyme-containing composite core and a preparation method thereof.
Background
Generally, faecal hygiene articles such as diapers and feminine hygiene products for menstrual periods consist of three main parts: surface coating layer, absorption core layer and base fabric. The absorbent core layer may also be referred to as an absorbent core body, and the absorbent core body is a key component for functioning as an excrement hygienic product such as a diaper and a sanitary product for women during menstrual periods. The main function of the absorbent core is to be able to capture and quickly absorb urine, disperse it or to spread it throughout the core layer by capillary action, ultimately absorbing and storing the urine. At present, the absorption core body in domestic market is mainly of a layered structure consisting of pure wood pulp (fluff pulp) and high polymer water-absorbent resin (SAP).
With the development of technology and materials, the absorbent core has developed towards "continuous layers", thinner and lighter. At present, the excrement sanitary products such as diapers and the like and the sanitary products for women in menstrual periods on the market can meet the use requirements of a plurality of consumers, and the effects of difficult fracture of a core layer, high urine absorption speed, large core absorption amount and the like are realized. However, when the core layer absorbs a large amount of urine, the urine collected in the core layer is heavy in smell when babies and adults wear the diaper for a long time, and the quality of the living environment of the human body is seriously affected.
Disclosure of Invention
The embodiment of the invention provides an enzyme-containing composite core body, aiming at solving the problem that when the core body layer of the existing absorption core body absorbs a large amount of urine, the urine accumulated on the core body layer is serious in urine smell and seriously affects the living environment quality of a human body when babies and adults wear paper diapers for a long time.
The embodiment of the invention is realized in such a way that the enzyme-containing composite core body sequentially comprises a first wrapping layer, a first excrement liquid treatment enzyme layer, a first isolation layer, a first functional layer, a middle supporting layer, a second functional layer, a second isolation layer, a second excrement liquid treatment enzyme layer and a second wrapping layer.
The embodiment of the invention also provides a preparation method of the enzyme-containing composite core, which comprises the following steps: adding fibrous powder into the fiber web, thermally fusing a reinforcing material, cooling and reinforcing to obtain dust-free paper, spraying excrement liquid treatment enzyme onto the dust-free paper when the surface temperature of the dust-free paper is reduced to normal temperature, drying and rolling to respectively prepare an upper isolation layer and an upper enzyme layer composite layer, and a lower isolation layer and a lower enzyme layer composite layer; coating hot melt adhesive on the enzyme-free surface of the upper isolation layer and the enzyme-free surface of the lower isolation layer; respectively spraying high-molecular water-absorbing resin on the lateral surface of the middle supporting layer to form a first functional layer and a second functional layer; pressing the enzyme-free surface of the second isolation layer and the second functional layer at a preset temperature through a first pressing roller and a second pressing roller, so that the lower isolation layer and the lower functional layer are bonded through hot melt adhesive; the enzyme-free surface of the first isolation layer and the upper functional layer are pressed at a preset temperature through a third pressing roller and a fourth pressing roller, so that the upper isolation layer and the upper functional layer are bonded through hot melt adhesive; after cooling, wrapping the first excrement liquid treatment enzyme layer, the first isolation layer, the first functional layer, the middle supporting layer, the second functional layer, the second isolation layer and the second excrement liquid treatment enzyme layer by using an upper wrapping layer and a lower wrapping layer, and rolling by using a rolling roller to obtain an enzyme-containing composite core; wherein the excrement liquid treatment enzyme comprises the following components in parts by weight: 0.29-0.76% of enzyme preparation, 4.1704-7.3604% of enzyme stabilizer, 4-6% of auxiliary adsorbent, 1-3% of drying aid and the balance of deionized water.
The first excrement liquid treatment enzyme layer and the second excrement liquid treatment enzyme layer in the enzyme-containing composite core body provided by the embodiment of the invention can inhibit the growth and reproduction of bacteria, eliminate the bacteria and control the generation of peculiar smell from the source. When the excrement liquid permeates into the composite core body of excrement hygienic products such as diapers and the like and sanitary products for women in menstrual periods through the surface layer or the diversion layer, the excrement liquid firstly contacts the first excrement liquid treatment enzyme layer of the composite core body, so that peculiar smell in the excrement liquid can be effectively removed, the growth and the propagation of bacteria in the excrement liquid are inhibited, and the bacteria are eliminated. After urine after the first excrement liquid treatment enzyme layer enters the composite core body, residual excrement liquid peculiar smell can be completely eliminated through the second excrement liquid treatment enzyme layer, and peculiar smell is removed from a terminal. Therefore, through the combined action of the upper layer and the lower layer of the excrement liquid treatment enzyme layer, even if excrement liquid is concentrated in the composite core body of excrement hygienic products such as diapers and the like and sanitary products in menstrual periods of women for a long time, the excrement liquid has no urine smell, no bacteria grow and reproduce in a large quantity, and bacteria and ammonia are inhibited and removed, so that a clean and comfortable living environment is provided for human bodies.
Drawings
FIG. 1 is a schematic structural diagram of an enzyme-containing composite core provided in an embodiment of the present invention;
wherein, the excrement treating paper comprises 1-a first wrapping layer, 2-a first excrement treating enzyme layer, 3-a first isolating layer, 4-a first functional layer, 5-a middle supporting layer, 6-a second functional layer, 7-a second isolating layer, 8-a second excrement treating enzyme layer and 9-a second wrapping layer.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The enzyme-containing composite core body provided by the embodiment of the invention sequentially comprises a first wrapping layer, a first excrement liquid treatment enzyme layer, a first isolation layer, a first functional layer, a middle supporting layer, a second functional layer, a second isolation layer, a second excrement liquid treatment enzyme layer and a second wrapping layer.
The first excrement liquid treatment enzyme layer and the second excrement liquid treatment enzyme layer in the enzyme-containing composite core body provided by the embodiment of the invention can inhibit the growth and reproduction of bacteria, eliminate the bacteria and control the generation of peculiar smell from the source. When the excrement liquid permeates into the composite core body of excrement hygienic products such as diapers and the like and sanitary products for women in menstrual periods through the surface layer or the diversion layer, the excrement liquid firstly contacts the first excrement liquid treatment enzyme layer of the composite core body, so that peculiar smell in the excrement liquid can be effectively removed, the growth and the propagation of bacteria in the excrement liquid are inhibited, and the bacteria are eliminated. After urine after the first excrement liquid treatment enzyme layer enters the composite core body, residual excrement liquid peculiar smell can be completely eliminated through the second excrement liquid treatment enzyme layer, and peculiar smell is removed from a terminal. Therefore, through the combined action of the upper layer and the lower layer of the excrement liquid treatment enzyme layer, even if excrement liquid is concentrated in the composite core body of excrement hygienic products such as diapers and the like and sanitary products in menstrual periods of women for a long time, the excrement liquid has no urine smell, no bacteria grow and reproduce in a large quantity, and bacteria and ammonia are inhibited and removed, so that a clean and comfortable living environment is provided for human bodies.
In an embodiment of the present invention, the first wrapping layer and the second wrapping layer form a closed space, and the first urine treatment enzyme layer, the first isolation layer, the first functional layer, the intermediate support layer, the second functional layer, the second isolation layer and the second urine treatment enzyme layer are wrapped in the closed space. In the embodiment of the invention, the upper and lower wrapping layers wrap the first excrement liquid treatment enzyme layer, the first isolation layer, the first functional layer, the middle supporting layer, the second functional layer, the second isolation layer and the second excrement liquid treatment enzyme layer in 360 degrees in all directions, so that substances in the upper second functional layer can be prevented from leaking outwards, and the strong urine absorption amount of the core body is ensured; meanwhile, the enzyme layer for treating the second excrement liquid is protected, the function of enzyme is fully exerted, the excrement liquid is locked in the enzyme-containing core body in all directions, the peculiar smell of the excrement liquid is effectively removed, and the excrement liquid is breathable and has no smell.
In an embodiment of the invention, the material of the first wrapping layer and the second wrapping layer is one or a combination of two of a single-layer fiber web, a double-layer fiber web, a three-layer fiber web and a four-layer fiber web.
Wherein, the individual layer fibre net forms for the one deck spunbonded nonwoven hot rolling, and double-deck fibre net forms for two-layer spunbonded nonwoven hot rolling, and three-layer fibre net forms for the one deck spunbonded nonwoven, the one deck meltblown nonwoven, the one deck spunbonded nonwoven hot rolling that arrange in proper order, and four layers fibre nets form for the one deck spunbonded nonwoven, two-layer meltblown nonwoven, the one deck spunbonded nonwoven hot rolling that arrange in proper order.
In a preferred embodiment of the present invention, the first wrapping layer and the second wrapping layer are both made of three layers of fiber webs.
The first wrapping layer and the second wrapping layer can improve the ventilation degree in the diaper, so that moisture and hot air emitted by a body can be discharged in time, and the skin of a baby can not be stimulated to cause diseases such as eczema, red buttocks and the like; the macromolecular water-absorbing resin is prevented from leaking outwards; protecting the strong multi-enzyme layer, fully playing the role of enzyme and effectively removing the peculiar smell of excrement liquid; no toxicity, no smell and high effect in isolating bacteria. Meanwhile, the first wrapping layer conducts, so that urine can quickly permeate into the first isolation layer.
In an embodiment of the present invention, the first isolation layer and the second isolation layer are dust-free paper.
In the embodiment of the invention, the main structures of the first isolation layer and the second isolation layer are viscose fiber and wood pulp, and the main functions of water absorption, diffusion and flow guide are realized; has the functions of adsorption and filtration, and can remove colored substances and harmful substances. The first isolation layer and the second isolation layer can wrap the high molecular water-absorbing resin in the first functional layer and the second functional layer respectively and are a carrier for bearing the high molecular water-absorbing resin.
In the embodiment of the invention, the first excrement liquid treatment enzyme layer and the second excrement liquid treatment enzyme layer are excrement liquid treatment enzyme layers sprayed on the first isolation layer and the second isolation layer, and can sterilize and inhibit bacteria and prevent bacteria from reproducing to generate peculiar smell; can decompose organic substances in the excrement liquid, and remove and inhibit ammonia odor for a long time.
In the embodiment of the invention, the excrement liquid treatment enzyme comprises the following components in parts by weight: 0.29-0.76% of enzyme preparation, 4.1704-7.3604% of enzyme stabilizer, 4-6% of auxiliary adsorbent, 1-3% of drying aid and the balance of deionized water.
In an embodiment of the present invention, the first functional layer and the second functional layer are one or two of a high molecular water absorbent resin and fluff pulp.
In a preferred embodiment of the present invention, the first functional layer and the second functional layer are both made of high molecular water absorbent resin. The first functional layer and the second functional layer mainly absorb and lock urine, so that the paper diaper is kept dry and cannot conduct urine; secondly, the gel strength of the high molecular water-absorbent resin is high, so that uncomfortable feeling can not be caused to the baby; also can prevent urine from reverse osmosis.
In the embodiment of the invention, the middle support layer is a fluffy non-woven fabric. The middle supporting layer plays a supporting role, the upper functional layer and the lower functional layer are uniformly distributed on two sides of the fluffy non-woven fabric, and the macromolecular water-absorbent resin is integrally expanded after water absorption and is smooth and does not lump. The middle supporting layer has larger fluffy aperture, can fix water-absorbing macromolecules so as not to move, and has the function of flow guiding due to the connection of fibers; preventing urine from reverse osmosis.
The preparation method of the enzyme-containing composite core provided by the embodiment of the invention comprises the following steps: adding fibrous powder into the fiber web, thermally fusing a reinforcing material, cooling and reinforcing the fiber web into dust-free paper, spraying excrement liquid treatment enzyme on the dust-free paper when the surface temperature of the dust-free paper is reduced to normal temperature, drying and rolling the dust-free paper, and respectively preparing a first isolation layer and a first excrement liquid treatment enzyme layer composite layer, and a second isolation layer and a second excrement liquid treatment enzyme layer composite layer; coating hot melt adhesive on the enzyme-free surface of the first isolation layer and the enzyme-free surface of the second isolation layer; respectively spraying high-molecular water-absorbing resin on the lateral surface of the middle supporting layer to form a first functional layer and a second functional layer; pressing the enzyme-free surface of the second isolation layer and the second functional layer at a preset temperature through a first pressing roller and a second pressing roller, so that the second isolation layer and the second functional layer are bonded through hot melt adhesive; pressing the enzyme-free surface of the first isolation layer and the first functional layer at a preset temperature through a third pressing roller and a fourth pressing roller, so that the first isolation layer and the first functional layer are bonded through hot melt adhesive; after cooling, wrapping the first excrement liquid treatment enzyme layer, the first isolation layer, the first functional layer, the middle supporting layer, the second functional layer, the second isolation layer and the second excrement liquid treatment enzyme layer by using a first wrapping layer and a second wrapping layer, and rolling by using a rolling roller to obtain an enzyme-containing composite core body; wherein the excrement liquid treatment enzyme comprises the following components in parts by weight: 0.29-0.76% of enzyme preparation, 4.1704-7.3604% of enzyme stabilizer, 4-6% of auxiliary adsorbent, 1-3% of drying aid and the balance of deionized water.
In an embodiment of the invention, the enzyme preparation is a protease and lysozyme.
In the embodiment of the invention, the spraying amount of the excrement liquid treatment enzyme is 1-20 g/m2。
In the embodiment of the invention, the temperature of the first compression roller and the second compression roller is 80-120 ℃; the temperature of the third press roller and the fourth press roller is 80-120 ℃.
The following will describe in detail the preparation method and effects of the enzyme-containing composite core provided by the present invention with reference to specific examples.
Example 1:
adding fibrous powder into the fiber web, thermally fusing the fiber web with a reinforcing material, and cooling and reinforcing the fiber web to obtain the fiber webWhen the surface temperature of the dust-free paper is reduced to normal temperature, the excrement liquid treatment enzyme is sprayed on the dust-free paper, and the spraying amount is 8g/m2Drying and rolling to prepare a first isolating layer and a first excrement liquid treatment enzyme layer composite layer, and a second isolating layer and a second excrement liquid treatment enzyme layer composite layer respectively;
coating hot melt adhesive on the enzyme-free surface of the first isolation layer and the enzyme-free surface of the second isolation layer; respectively spraying high-molecular water-absorbing resin on the lateral surface of the middle supporting layer to form a first functional layer and a second functional layer;
pressing the enzyme-free surface of the second isolation layer and the second functional layer at 80 ℃ through a first pressing roller and a second pressing roller, so that the second isolation layer and the second functional layer are bonded through hot melt adhesive;
pressing the enzyme-free surface of the first isolation layer and the first functional layer at 80 ℃ through a third pressing roller and a fourth pressing roller, so that the first isolation layer and the first functional layer are bonded through hot melt adhesive;
after cooling, wrapping the first excrement liquid treatment enzyme layer, the first isolation layer, the first functional layer, the middle supporting layer, the second functional layer, the second isolation layer and the second excrement liquid treatment enzyme layer by using a first wrapping layer and a second wrapping layer, and rolling by using a rolling roller to obtain an enzyme-containing composite core body;
wherein the excrement liquid treatment enzyme comprises the following components in parts by weight: 0.34% enzyme preparation (0.03% lysozyme, 0.31% protease), 5.4804% enzyme stabilizer (0.35% citric acid, 2.65% sodium citrate dihydrate, 0.05% polyhexamethylene biguanide hydrochloride, 0.03% didecyldimethylammonium chloride, 0.0004% benzethonium chloride, 0.6% trehalose, 1.8% glycerol), 4% co-adsorbent (4% PPG-400), 2% drying aid (2% ethanol), 88.1796% deionized water.
Example 2: adding fibrous powder into the fiber web, thermally fusing a reinforcing material, cooling and reinforcing to obtain dust-free paper, and spraying excrement liquid treatment enzyme onto the dust-free paper when the surface temperature of the dust-free paper is reduced to normal temperature, wherein the spraying amount is 1g/m2Drying and rolling to prepare a first isolating layer and a first excrement liquid treatment enzyme layer composite layer, and a second isolating layer and a second excrement liquid treatment enzyme layer composite layer respectively;
coating hot melt adhesive on the enzyme-free surface of the first isolation layer and the enzyme-free surface of the second isolation layer; respectively spraying high-molecular water-absorbing resin on the lateral surface of the middle supporting layer to form a first functional layer and a second functional layer;
pressing the enzyme-free surface of the second isolation layer and the second functional layer at 80 ℃ through a first pressing roller and a second pressing roller, so that the second isolation layer and the second functional layer are bonded through hot melt adhesive;
pressing the enzyme-free surface of the first isolation layer and the first functional layer at 80 ℃ through a third pressing roller and a fourth pressing roller, so that the first isolation layer and the first functional layer are bonded through hot melt adhesive;
after cooling, wrapping the first excrement liquid treatment enzyme layer, the first isolation layer, the first functional layer, the middle supporting layer, the second functional layer, the second isolation layer and the second excrement liquid treatment enzyme layer by using a first wrapping layer and a second wrapping layer, and rolling by using a rolling roller to obtain an enzyme-containing composite core body;
wherein the excrement liquid treatment enzyme comprises the following components in parts by weight: by weight percent, 0.29% enzyme preparation (0.05% lysozyme, 0.24% protease), 4.1704% enzyme stabilizer (0.3% citric acid, 2.6% sodium citrate dihydrate, 0.04% polyhexamethylene biguanide hydrochloride, 0.03% didecyl dimethyl ammonium chloride, 0.0004% benzethonium chloride, 0.6% trehalose, 0.6% glycerol), 6% adsorption aid (6% PPG-400), 3% drying aid (3% ethanol), 86.5396% deionized water.
Example 3: example 2: adding fibrous powder into the fiber web, thermally fusing a reinforcing material, cooling and reinforcing to obtain dust-free paper, and spraying excrement liquid treating enzyme onto the dust-free paper when the surface temperature of the dust-free paper is reduced to normal temperature, wherein the spraying amount is 20g/m2Drying and rolling to prepare a first isolating layer and a first excrement liquid treatment enzyme layer composite layer, and a second isolating layer and a second excrement liquid treatment enzyme layer composite layer respectively;
coating hot melt adhesive on the enzyme-free surface of the first isolation layer and the enzyme-free surface of the second isolation layer; respectively spraying high-molecular water-absorbing resin on the lateral surface of the middle supporting layer to form a first functional layer and a second functional layer;
pressing the enzyme-free surface of the second isolation layer and the second functional layer at 100 ℃ through a first pressing roller and a second pressing roller, so that the second isolation layer and the second functional layer are bonded through hot melt adhesive;
pressing the enzyme-free surface of the first isolation layer and the first functional layer at 100 ℃ through a third pressing roller and a fourth pressing roller, so that the first isolation layer and the first functional layer are bonded through hot melt adhesive;
after cooling, wrapping the first excrement liquid treatment enzyme layer, the first isolation layer, the first functional layer, the middle supporting layer, the second functional layer, the second isolation layer and the second excrement liquid treatment enzyme layer by using a first wrapping layer and a second wrapping layer, and rolling by using a rolling roller to obtain an enzyme-containing composite core body;
wherein the excrement liquid treatment enzyme comprises the following components in parts by weight: by weight percent, 0.76% enzyme preparation (0.5% lysozyme, 0.26% protease), 6.0003% enzyme stabilizer (0.16% citric acid, 3.5% sodium citrate dihydrate, 0.04% polyhexamethylene biguanide hydrochloride, 0.05% didecyl dimethyl ammonium chloride, 0.0003% benzethonium chloride, 0.75% trehalose, 1.5% glycerol), 4% co-adsorbent (4% PPG-400), 1% drying aid (1% ethanol), 88.2397% deionized water.
Example 4: adding fibrous powder into the fiber web, thermally fusing a reinforcing material, cooling and reinforcing to obtain dust-free paper, and spraying excrement liquid treatment enzyme onto the dust-free paper when the surface temperature of the dust-free paper is reduced to normal temperature, wherein the spraying amount is 8g/m2Drying and rolling to prepare a first isolating layer and a first excrement liquid treatment enzyme layer composite layer, and a second isolating layer and a second excrement liquid treatment enzyme layer composite layer respectively;
coating hot melt adhesive on the enzyme-free surface of the first isolation layer and the enzyme-free surface of the second isolation layer; respectively spraying high-molecular water-absorbing resin on the lateral surface of the middle supporting layer to form a first functional layer and a second functional layer;
pressing the enzyme-free surface of the second isolation layer and the second functional layer at 100 ℃ through a first pressing roller and a second pressing roller, so that the second isolation layer and the second functional layer are bonded through hot melt adhesive;
pressing the enzyme-free surface of the first isolation layer and the first functional layer at 100 ℃ through a third pressing roller and a fourth pressing roller, so that the first isolation layer and the first functional layer are bonded through hot melt adhesive;
after cooling, wrapping the first excrement liquid treatment enzyme layer, the first isolation layer, the first functional layer, the middle supporting layer, the second functional layer, the second isolation layer and the second excrement liquid treatment enzyme layer by using a first wrapping layer and a second wrapping layer, and rolling by using a rolling roller to obtain an enzyme-containing composite core body;
wherein the excrement liquid treatment enzyme comprises the following components in parts by weight: by weight percent, 0.6% enzyme preparation (0.5% lysozyme, 0.1% protease), 7.3604% enzyme stabilizer (0.1% citric acid, 4.2% sodium citrate dihydrate, 0.03% polyhexamethylene biguanide hydrochloride, 0.03% didecyl dimethyl ammonium chloride, 0.0004% benzethonium chloride, 1.5% trehalose, 1.5% glycerol), 5% co-adsorbent (5% PPG-400), 3% drying aid (3% ethanol), 84.0396% deionized water.
Example 5: adding fibrous powder into the fiber web, thermally fusing a reinforcing material, cooling and reinforcing to obtain dust-free paper, and directly spraying an enzyme solution onto the dust-free paper when the surface temperature of the dust-free paper is reduced to normal temperature, wherein the spraying amount is 8g/m2Drying and rolling to prepare a first isolating layer and a first excrement liquid treatment enzyme layer composite layer, and a second isolating layer and a second excrement liquid treatment enzyme layer composite layer respectively;
coating hot melt adhesive on the enzyme-free surface of the first isolation layer and the enzyme-free surface of the second isolation layer; respectively spraying high-molecular water-absorbing resin on the lateral surface of the middle supporting layer to form a first functional layer and a second functional layer;
pressing the enzyme-free surface of the second isolation layer and the second functional layer at 100 ℃ through a first pressing roller and a second pressing roller, so that the second isolation layer and the second functional layer are bonded through hot melt adhesive;
pressing the enzyme-free surface of the first isolation layer and the first functional layer at 100 ℃ through a third pressing roller and a fourth pressing roller, so that the first isolation layer and the first functional layer are bonded through hot melt adhesive;
after cooling, wrapping the first excrement liquid treatment enzyme layer, the first isolation layer, the first functional layer, the middle supporting layer, the second functional layer, the second isolation layer and the second excrement liquid treatment enzyme layer by using a first wrapping layer and a second wrapping layer, and rolling by using a rolling roller to obtain an enzyme-containing composite core body;
wherein the enzyme solution comprises the following components in parts by weight: 0.5 percent of lysozyme and 99.5 percent of deionized water according to weight percentage.
Example 6: adding fibrous powder into the fiber web, thermally fusing a reinforcing material, cooling and reinforcing to obtain dust-free paper, and directly spraying an enzyme solution onto the dust-free paper when the surface temperature of the dust-free paper is reduced to normal temperature, wherein the spraying amount is 8g/m2Drying and rolling to prepare a first isolating layer and a first excrement liquid treatment enzyme layer composite layer, and a second isolating layer and a second excrement liquid treatment enzyme layer composite layer respectively;
coating hot melt adhesive on the enzyme-free surface of the first isolation layer and the enzyme-free surface of the second isolation layer; respectively spraying high-molecular water-absorbing resin on the lateral surface of the middle supporting layer to form a first functional layer and a second functional layer;
pressing the enzyme-free surface of the second isolation layer and the second functional layer at 100 ℃ through a first pressing roller and a second pressing roller, so that the second isolation layer and the second functional layer are bonded through hot melt adhesive;
pressing the enzyme-free surface of the first isolation layer and the first functional layer at 100 ℃ through a third pressing roller and a fourth pressing roller, so that the first isolation layer and the first functional layer are bonded through hot melt adhesive;
after cooling, wrapping the first excrement liquid treatment enzyme layer, the first isolation layer, the first functional layer, the middle supporting layer, the second functional layer, the second isolation layer and the second excrement liquid treatment enzyme layer by using a first wrapping layer and a second wrapping layer, and rolling by using a rolling roller to obtain an enzyme-containing composite core body;
wherein the enzyme solution comprises the following components in parts by weight: according to weight percentage, 0.5 percent of lysozyme, 0.26 percent of protease and 99.24 percent of deionized water.
In order to further illustrate the performance of the enzyme-containing composite core provided by the embodiments of the present invention, the following test examples further illustrate the beneficial effects of the enzyme-containing composite core provided by the embodiments of the present invention.
Test one: enzyme activity test of enzyme-containing dust-free paper
1. Test samples: detecting a sample: the enzyme-containing core provided in embodiments 1 to 6 of the present invention.
2. The test method comprises the following steps: lysozyme: reference is made to a spectrophotometric method for measuring lysozyme in egg white of GB/T25879-. ② protease: reference is made to a GB/T23527-2009 protease preparation detection method.
3. And (3) test results: the details are shown in the following table 1, wherein the enzyme activity loss rate is (total activity of the initial spraying enzyme liquid-total activity of the enzyme on the enzyme-containing dust-free paper x 100%)/total activity of the initial spraying enzyme liquid.
TABLE 1
| Examples | The activity loss rate of lysozyme is% | The loss rate of the activity of the protease% |
| Example 1 | 15.17 | 18.22 |
| Example 2 | 16.22 | 20.18 |
| Example 3 | 15.98 | 20.77 |
| Example 4 | 16.04 | 21.14 |
| Example 5 | 34.15 | 40.21 |
| Example 6 | 36.75 | 38.57 |
As can be seen from the test results in table 1 above, the activity loss rate of lysozyme and protease in the enzyme-containing dust-free paper provided in examples 1 to 4 of the present invention is lower than that in examples 5 and 6; the enzyme stabilizer in the excrement liquid treatment enzyme can reduce the enzyme activity loss of lysozyme and protease in the core production process.
And (2) test II: sterilization test
1. Test samples: detecting a sample: the enzyme-containing core provided in embodiments 1 to 6 of the present invention.
2. The test method comprises the following steps: sterilization specifications (2002 edition). Test strains: staphylococcus aureus, Escherichia coli, Pseudomonas aeruginosa, and Candida albicans.
TABLE 2
As can be seen from the test results in the above table 2, the enzyme-containing composite core provided in the embodiments 1 to 6 of the present invention meets the sterilization requirements in the sterilization technical specifications (2002 edition), and has good sterilization performance; the bactericidal performance of the enzyme-containing composite core in embodiments 1 to 4 of the present invention is superior to that in embodiments 5 and 6.
And (3) test III: bacterial inhibition experiment
1. Test samples: detecting a sample: the enzyme-containing nonwoven fabric provided in example 9 of the present invention, the enzyme-containing dust-free paper provided in example 10, and the enzyme-containing core provided in example 11.
3. The test method comprises the following steps: hygienic indexes GB15979-2002 hygienic Standard for Disposable sanitary articles. Test strains: staphylococcus aureus, Escherichia coli, and Candida albicans.
4. Evaluation criteria: the bacteriostatic rate is more than or equal to 50-90%, the product has bacteriostatic action, the bacteriostatic rate is more than or equal to 90%, and the product has strong bacteriostatic action.
TABLE 3
From the test results in table 3 above, it can be seen that the enzyme-containing composite cores provided in examples 1 to 6 of the present invention all have an inhibitory activity of 50% or more against staphylococcus aureus, escherichia coli, and candida albicans. The enzyme-containing non-woven fabric, the enzyme-containing dust-free paper and the enzyme-containing core bacteria can be used in infant paper diapers, adult sanitary napkins and adult incontinence diaper products, and have a good bacteriostatic function; the bacteriostatic performance of the enzyme-containing composite core in the embodiments 1 to 4 of the invention is better than that in the embodiments 5 and 6.
And (4) testing: peculiar smell of urine removal experiment
The experimental method comprises the following steps: placing the enzyme-containing composite core body provided in the embodiments 1 to 6 of the invention into a closed container, wherein the closed container is respectively marked as a first closed container to a sixth closed container, pouring 80mL of artificial urine into the enzyme-containing composite core body provided in the embodiments 1 to 6 of the invention in sequence, after the artificial urine is completely absorbed, smelling the smell of the enzyme-containing composite core body, and grading according to the smell and smell degree.
And (3) grading rules: no urine odor or no odor-0 point; slight urine or slight off-flavor-1 point; bad smell of urine or bad smell of urine-3 points.
TABLE 4
As can be seen from the test results in Table 4 above, the fecal fluid treatment enzymes provided in embodiments 1-6 of the present invention can effectively remove urine odor, and provide a fresh, mild and odor-free personal care environment.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (9)
1. The enzyme-containing composite core body is characterized by sequentially comprising a first wrapping layer, a first excrement liquid treatment enzyme layer, a first isolation layer, a first functional layer, a middle supporting layer, a second functional layer, a second isolation layer, a second excrement liquid treatment enzyme layer and a second wrapping layer.
2. The enzyme-containing composite core of claim 1, wherein the first and second wrappings form a closed space, and the first fecal fluid treating enzyme layer, first separating layer, first functional layer, intermediate support layer, second functional layer, second separating layer and second fecal fluid treating enzyme layer are wrapped in the closed space.
3. The enzyme-containing composite core according to claim 1, wherein the first wrapping layer or the second wrapping layer is a three-layer fiber web, and the three-layer fiber web is formed by sequentially arranging and hot-rolling a spunbonded non-woven fabric, a melt-blown non-woven fabric and a spunbonded non-woven fabric.
4. The enzyme-containing composite core of claim 1, wherein the first fecal fluid treating enzyme layer and the second fecal fluid treating enzyme layer are fecal fluid treating enzyme layers sprayed onto the first barrier layer and the second barrier layer.
5. The enzyme-containing composite core according to claim 1, wherein the fecal fluid treatment enzyme comprises the following components by weight: 0.29-0.76% of enzyme preparation, 4.1704-7.3604% of enzyme stabilizer, 4-6% of auxiliary adsorbent, 1-3% of drying aid and the balance of deionized water.
6. A preparation method of an enzyme-containing composite core is characterized by comprising the following steps:
adding fibrous powder into the fiber web, thermally fusing a reinforcing material, cooling and reinforcing the fiber web into dust-free paper, spraying excrement liquid treatment enzyme on the dust-free paper when the surface temperature of the dust-free paper is reduced to normal temperature, drying and rolling the dust-free paper, and respectively preparing a first isolation layer and a first excrement liquid treatment enzyme layer composite layer, and a second isolation layer and a second excrement liquid treatment enzyme layer composite layer;
coating hot melt adhesive on the enzyme-free surface of the first isolation layer and the enzyme-free surface of the second isolation layer; respectively spraying high-molecular water-absorbing resin on the lateral surface of the middle supporting layer to form a first functional layer and a second functional layer;
pressing the enzyme-free surface of the second isolation layer and the second functional layer at a preset temperature through a first pressing roller and a second pressing roller, so that the second isolation layer and the second functional layer are bonded through hot melt adhesive;
pressing the enzyme-free surface of the first isolation layer and the first functional layer at a preset temperature through a third pressing roller and a fourth pressing roller, so that the first isolation layer and the first functional layer are bonded through hot melt adhesive;
after cooling, wrapping the first excrement liquid treatment enzyme layer, the first isolation layer, the first functional layer, the middle supporting layer, the second functional layer, the second isolation layer and the second excrement liquid treatment enzyme layer by using a first wrapping layer and a second wrapping layer, and rolling by using a rolling roller to obtain an enzyme-containing composite core body;
wherein the excrement liquid treatment enzyme comprises the following components in parts by weight: 0.29-0.76% of enzyme preparation, 4.1704-7.3604% of enzyme stabilizer, 4-6% of auxiliary adsorbent, 1-3% of drying aid and the balance of deionized water.
7. The method of making an enzyme containing composite core according to claim 6 wherein said enzyme preparation is a protease and lysozyme.
8. The method for preparing the enzyme-containing composite core according to claim 6, wherein the spraying amount of the fecal fluid treatment enzyme is 1-20 g/m2。
9. The method of making an enzyme containing composite core according to claim 6 wherein the first and second press rolls are at a temperature of 80 to 120 ℃; the temperature of the third press roller and the fourth press roller is 80-120 ℃.
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